Lusciously, palm oil produced from a fern like works called the oil thenar tree. The oil extracted from the outer soft, heavy part of the fruit and palm meats oil extracted from the interior seed part of the thenar tree fruit. In add-on, thenar oil has many good belongingss where the infusion is full of alkenes, a potentially valuable chemical group that can be processed into many non-food merchandises every bit good. Furthermore, the natural oil besides has the largest piece of the universe vegetable oil market of 28 % .
Furthermore, palm oil is a primary replacement for rapeseed oil in Europe, which is sing high degrees of demand for bio-diesel fuel production intents. In add-on, the thenar tree fruit infusion is the most productive energy harvest the universe has. One hectare of oil thenar plantation has the capacity to bring forth about 6,000 litres of rough bio-diesel. In comparing, soya beans and maize generates merely about 400 and 200 litres per hectare, severally. Therefore, palm oil plantation is more profitable concern than any other harvests.
In 2008, Malaysia produced 17.7 million dozenss of palm oil on 4.5 million hectares of land. While Malaysia ‘s palm oil production is less than Indonesia, it is still the largest exporter of palm oil in the universe. About 60 % of palm oil cargos from Malaysia caput to China, the European Union, Pakistan, United States and India. They are largely made into cooking oil, oleo, forte fats, and oleo-chemicals.
The thenar trees can be grown on cheery tropical part. Most plantation lands are cleared through administrating the slash-and burn technique. Palm trees are really various and are the highest giving oilseed harvest. For fresh fruit output, for every 10 dozenss of palm oil, approximately 1 tone of palm meats oil can be obtained. The states that produce the crudest thenar oil are from Southeast Asia chiefly Malaysia and Indonesia. Together, both states account for approximately 80 % of the universe ‘s production.
Malaya is the individual largest manufacturer with more than 50 per centum of the universe ‘s production, while Indonesia follows with about 30 per centum of planetary production. Between 1960 and 2000, planetary thenar oil production increased 10 crease from 2 million dozenss in 1960 to 24 million dozenss in 2000. As the largest manufacturer and exporter of palm oil and thenar oil merchandises, Malaysia has an of import function to play in carry throughing the turning planetary demands for oils and fats in general.
The universe commercial selling as Malaysia is the largest manufacturer and exporter of palm oil. The chart distribution below shows the universe ‘s biggest exporter of palm oil, Malaysia accounted for 15.14 million dozenss ( 26.2 % ) of the planetary oils, and fats trade in 2007. In 2008, Malaysia produced 17.7 million dozenss of palm oil on 4.5 million hectares of land.
Figure 1.1: World exporter of palm oil in 2007
( Oil World, 2008 )
Malaysia late began turning up its run to contend misinformation against palm oil production in a series of forums in the United States. Successfully, the authorities has pointed out the unjust computation of C emanations for thenar oil based on comparings with C stocks of the pristine rain woods as the starting point.
Furthermore, palm oil is a natural natural stuff that can be used about anyplace and therefore one of the most popular agricultural trade goods. The various oil has been used from rinsing liquids and soap to margarine and cosmetics production. Almost every consumables merchandise contains palm oil. In the European states, the petroleum thenar is besides a primary replacement for rapeseed oil.
On the other manus, turning planetary demand for comestible oils and carnal proteins in the last decennary or two had resulted in a enormous addition in the countries under oil harvests cultivation, peculiarly of soya bean and oil thenar. In the last six old ages, universe production of soya bean had increased 47 % to fulfill the market for carnal provender ( soybean repast ) and comestible oils. Most of the increased production came from states in South America.
In item, the four chief soya bean turning states consisting Brazil, Argentina, Bolivia and Paraguay recorded a 92 % addition in production and 66 % addition in deep-rooted country in the past six old ages. The current country under soybean cultivation is about 30 million hectares ( AID Environment & A ; Profundo, 2002 ) .
Hence, universe production of palm oil, the most widely traded comestible oil, has besides seen important springs in production and planted countries, production had about doubled from 1990 to 2001, with Malaysia and Indonesia lending to most of the increased production. This has been achieved chiefly by opening a new land for oil thenar plantations.
In Malaysia, the country planted with the harvest had increased from 2.03 million hectares in 1990 to 3.50 million hectares in 2001, an addition of 172 % . In Indonesia, 1.8 million hectares have been planted with oil thenar from 1990 to 1999 ( Wakker, 2000: cited in Teoh, 2002 ) .
Consequently, the rapid enlargement of both harvests had resulted in the transition of High Conservation Value Forests ( HCVFs ) in South America, including parts of the Amazon and in South-East Asia. It has been estimated that about an norm of 200,000 hectares of forestland had been converted yearly from 1990 to 1999 in Indonesia, the existent rate varying from approximately 150,000 to more than 250,000 hectares per twelvemonth ( Wakker, 2000: citied in Teoh, 2002 ) .
In add-on, as universe production of palm oil and soy oil is expected to go on to increase at the current gait, there is a turning concern that this enlargement would ensue in transition of a big proportion of the staying HCVFs in the Torrid Zones. Several surveies have been undertaken to derive a better apprehension of the issues refering to forest transition and the comestible oils sector. This survey focuses on the supply concatenation of the palm oil industry in Malaysia.
1.2 Palm Oil Production
In 2001, the universe ‘s production of palm oil was 23.18 million tones or 19.8 % of the entire production of 17 oils and fats, doing it the 2nd most of import oil after soy oil. Palm oil has achieved impressive growing in production and exports in the last few decennaries ; production had doubled from 1990 to 2001.
In footings of exports, palm oil is the most widely traded oil, accounting for 45.6 % of the universe ‘s exports of 17 oils and fats in 2001 ( www.mpob.gov.my, 2009 ) Malaya is the largest manufacturer of palm oil, lending about 11.80 million dozenss or 50.9 % of entire production, while Indonesia produced about 7.5 million dozenss or 32.3 % . Malaysia is besides the universe ‘s largest exporter of palm oil, accounting for approximately 61.1 % or 10.62 million dozenss of the entire exports of 17.37 million dozenss in 2001.
Table 1.1: World Production of Palm Oil ( ‘000 dozenss )
State of Origin
Dutch east indies
Papua New Guinea
( Oil World and MPOB, 2008 )
Table 1.2: World Major Exporters of Palm Oil ( ‘000 dozenss )
State of Origin
Dutch east indies
Papua New Guinea
( Oil World and MPOB, 2008 )
World production of palm oil was projected to duplicate from 2000 to 2020 with a entire production transcending 40 million dozenss. The chief growing is expected from Indonesia, which could go the universe ‘s prima manufacturer by 2015. However, in position of the political and socio-economic convulsion that followed the Asiatic fiscal crisis, it is unsure if the projected marks could be achieved.
With the rapid enlargement in the deep-rooted country, the one-year production of thenar in Malaysia had increased significantly in Malaysia ; the petroleum thenar oil ( CPO ) produced in 2001 was 11.8 million dozenss which was 4.6 times the volume produced in 1980. The addition in production in Sabah was peculiarly impressive, reflecting the aggressive planting policy in the province and it became the largest CPO manufacturer in 1999. In 2001, Sabah accounted for 31.5 % of the national production. Other major CPO bring forthing provinces are Johor, Pahang and Perak in Peninsular Malaysia.
Table 1.3: Projected Production of Palm Oil ( 2000-2020 ) ( million dozenss )
Dutch east indies
10,100 ( 49.3 % )
6,700 ( 32.7 % )
10,700 ( 48.1 % )
7,720 ( 34.7 % )
10,980 ( 48.4 % )
7,815 ( 34.5 % )
11,050 ( 47.7 % )
8,000 ( 34.6 % )
10,900 ( 45.6 % )
8,700 ( 36.4 % )
11,700 ( 45.6 % )
9,400 ( 36.6 % )
1996 – 2000
9,022 ( 50.3 % )
5,445 ( 30.4 % )
2001 – 2005
11,066 ( 47.0 % )
8,327 ( 35.4 % )
2006 – 2010
12,700 ( 43.4 % )
11,400 ( 39.0 % )
2011 – 2015
14,100 ( 40.2 % )
14,800 ( 42.2 % )
2016 – 2020
15,400 ( 37.7 % )
18,000 ( 44.1 % )
( Oil World and MPOB, 2008 )
Table 1.3 shows the per centum of universe entire production. The distribution of production in 2001 is quickly increased within these 8 old ages. The tabular array 1.4 shows the production of Crude Palm Oil in Malaysia ( Tons ) .
Table 1.4: Production of Crude Palm Oil in Malaysia ( Tons )
( Oil World and MPOB, 2008 )
Kedah & A ; Perlis
Figure 1.2: Production of Crude Palm Oil States in 2001
( Oil World and MPOB, 2008 )
As the thenar oil plantations covering more than 700,000 hectares, Sabah is the largest manufacturer of rough palm oil in the whole of Malaysia lending approximately 25 % of the entire production of rough palm oil in the state.
Figure 1.3: Sabah Production of Palm Oil
1.3 Palm Oil Mill Effluent ( POME )
Raw POME is a colloidal suspension incorporating 95-96 % H2O, 0.6-0.7 % oil and 4-5 % entire solids including 2-4 % suspended solids that are chiefly consisted of dust from thenar fruit mesocarp generated from three chief beginnings, viz. sterilizer condensate, centrifuge sludge and hydrocyclone effluent. For a well-controlled conventional factory, approximately 0.9, 1.5 and 0.1m3 effluent are generated from autoclave condensate, centrifuge sludge and hydrocyclone effluent, severally, for each ton of rough palm oil produced.
In the twelvemonth 2004, more than 40 million metric tons of POME was generated from 372 Millss in Malaysia. If the wastewater is discharged untreated, it can surely do considerable environmental jobs due to its high biochemical O demand ( 25,000 mg/l ) , chemical O demand ( 53,630 mg/l ) , oil and lubricating oil ( 8370 mg/l ) , entire solids ( 43,635 mg/l ) every bit good as suspended solids ( 19,020 mg/l ) . Therefore, the thenar oil factory industry in Malaysia is identified as the 1 that produces the largest pollution burden into the rivers throughout the state. The discharge of untreated POME though creates inauspicious impact to the environment, the impression of fostering POME and its derived functions as valuable resources should non be dismissed.
This is because POME contains high concentrations of protein, saccharide, nitrogen-bearing compounds, lipoids and minerals that may be converted into utile stuffs utilizing microbic procedures. Several surveies have been reported on the development of POME and its derivative as agitation media to bring forth antibiotic and bioinsecticide, dissolvers, polyhydroxyalkanoates, organic acids every bit good as enzymes. There is an pressing demand to happen a conciliatory manner that will enable the balance between the environmental protection and sustainable reuse of the alimentary beginnings found in the POME.
The current intervention system, which is based chiefly on biological interventions of anaerobiotic and aerophilic systems, is quite inefficient and this unluckily leads to the environmental pollution issues. Furthermore, the alimentary beginnings available in the POME can non be efficaciously reused as a substrate in the agitation after the conventional intervention procedure has been adopted.
However, the rapid development of the industry has had serious effects on the natural environment, which chiefly related to H2O pollution due to a big discharge of untreated or partly treated thenar oil factory wastewater ( POME ) into watercourses. In the twelvemonth 2004, more than 40 million tones of POME was generated from 372 Millss in Malaysia ( Yacob et al, 2006 ) . Therefore, the thenar oil factory industry in Malaysia is identified as the 1 that produces the largest pollution burden into the rivers throughout the state ( Hwang et al, 1978 ) .
It is acidic with pH 4-5 and discharged at temperature about 80-90A°C. Although the wastewater is non toxic, it has a really high concentration of biochemical O demand ( BOD ) ( i.e. 25 000 mg/L ) which becomes a serious menace to aquatic life when discharged in comparatively big measures into watercourses. Furthermore, POME contributes 83 % of the industrial organic pollution burden in Malaysia ( Vigneswaran et al, 1999 ) .
The most common pattern for POME intervention presents is by biological procedures in which based on anaerobiotic and aerophilic pool system. However, biological intervention systems need proper care and monitoring as the procedures rely entirely on micro-organisms to interrupt down the pollutants. Many palm oil Millss which apply the biological intervention system failed to follow with the Department of Environment ( DOE ) criterion discharge bounds.
Therefore, the pre-treatment of POME utilizing curdling and flocculation processes has become an of import characteristic, in order to expeditiously cut down the organic burden prior to subsequent intervention procedures. Aluminum sulfate ( alum ) , an inorganic salt, is the most widely used coagulator in effluent intervention, due to its proved public presentation, cost-effectiveness and handiness. However, the used of aluminium-based coagulator has become under examination.
Besides the big sum of sludge produced, high degree of aluminum remained in the treated H2O has raised concern on public wellness ( Driscoll and Letterman, 1995 ) . Previous research have pointed out that consumption of big sum of aluminum salt may lend to the development of neurodegenerative diseases, including Alzheimer disease ( Pontius, 2000 ) . Alternatively, an environmental friendly coagulator such as chitosan can be developed and used presents.
If the POME is discharged untreated, the sum of Biochemical Oxygen Demand ( BOD ) produced in twelvemonth 2008 was 1.108 million tones. By gauging, each citizen produces 14.6 kilogram of BOD every twelvemonth ( Doorn et al. , 2006 ) ; this pollution burden is tantamount to the waste generated by 75 million people, which is about thrice the population of Malaysia.
Presently, the bulk of palm oil Millss have adopted conventional biological intervention of anaerobic or facultative digestion, which needs big intervention country and long intervention periods ( 80-120 yearss ) . In add-on, the micro-organisms, which are the COD and BOD digester, require intensive attention, as they are sensitive to the encompassing temperature and pH.
Therefore, skilled and experient workers are needed for complete care and control to guarantee the biological intervention is implemented in an order mode. High content of suspended solids and organic affairs in the outflowing discharge can do terrible pollution of waterways due to oxygen-depletion and other related effects. The typical POME features are shown in Table 1.5 ( All parametric quantity ‘s units in mg/L except pH ) .
Concentration ( mg/L )
Oil and lubricating oil
Biochemical Oxygen Demand ( BOD )
Chemical Oxygen Demand ( COD )
Entire Volatile solids
2.3Table 1.5: Features of palm oil factory wastewater
( Ma, 2000 ; Chow, 1991 )
1.4 Palm Oil for Bio-diesel
By and large, the usage of palm oil-based biodiesel is increasing due to strong production growing in tropical states like Malaysia, Indonesia, Thailand, Nigeria and Colombia. Palm oil is a promising feedstock for biodiesel production because of its low cost and high productiveness per unit of deep-rooted country ( Rojas, 2007 ) . Palm oil biodiesel, besides known as palm oil methyl ester ( PME ) , differs from other types of biodiesel in its class of molecule unsaturation. PME is more concentrated, which means it has a lower figure of dual C bonds in its molecules. For Diesel engine applications, the grade of biodiesel molecule unsaturation represents a via media. Saturated fuels such as PME have high-ignition quality. However, they besides harden at higher temperatures, doing them hard to utilize in cold conditions.
Since biodiesel is derived from renewable beginnings, its production and usage are being promoted worldwide as a manner to cut down oil dependence and lessening nursery gas emanations. Due to PME ‘s lifting importance as a biodiesel feedstock, it ‘s of import to see its burning and operational public presentation.
In Europe, there is a high demand on rough palm oil for bio-diesel intents. Many major manufacturers are puting to a great extent in the refineries needed for the procedure to change over rough thenar into bio-diesel. Due to the current high monetary values of fossil petroleum oil, bio-diesel is deemed as the alternate fuel beginning to gasoline for vehicles.
However in Malaysia, the authorities have been aiming on utilizing palm oil for bio-diesel since 2008. Malaysia as the universe ‘s 2nd largest manufacturer of rough palm oil ( CPO ) has implemented authorizations for biodiesel and will give assistance to the industry to replant as portion of the bundle of steps to hike demand for CPO and restrict glut ( Bernama, 2008 ) . In add-on, back to the twelvemonth of 2006, Malaysia took the lead in developing Asia ‘s biodiesel industry and given licences to more than 90 companies to put up workss with visions of presenting palm biodiesel into the domestic fuel market. Therefore, the authorities had planned to present the bio-diesel in phases within cardinal Peninsular Malaysia in 2011 ( Bernama, 2010 ) .
1.5 Edible Oil for Food Production
Palm oil is an of import and various natural stuff for both nutrient and non-food industries. It contributes to the economic development of the bring forthing states and to the diets of 1000000s of people around the universe. The oil is about 50 % saturated fat and 50 % unsaturated fat.
Due to such a alone characteristic thenar oil may be separated under controlled thermic conditions into two constituents, a solid signifier ( palm stearin ) and a liquid signifier ( palm olein ) . Palm oil is frequently used in healthy organic nutrients since the merely other solid organic fats are extremely saturated butter and coconut oil.
1.6 Problem Statements
There are a few jobs sing the usage of H2O by the works where fresh H2O is used excessively much during the operation. Hence, there are besides inefficiencies of effluent recovery and intervention. Furthermore, the research worker besides indicated the hapless effluent direction where the H2O used by the mill was non distributed decently. In add-on, the research worker besides had assessed the bad quality of the half-treated H2O.
Therefore, the research worker believes that are really of import to integrate H2O footmark appraisal in order to pull off the effluent expeditiously. Plus, by utilizing H2O footmark appraisal, the research worker assures that it will be more economic and progressively rigorous environmental ordinances.
The research aims are to do certain that the H2O used in palm oil factory recycled after the works operation. In add-on, this research besides aims to optimise the use of the H2O footmark in palm oil factory in order to forestall the H2O usage foolishly by the mill. Furthermore, the research worker besides set a end to minimise the use of fresh H2O by the works as the H2O used is recycled. Besides, to show possible techniques to cut down the fresh water demand and effluent coevals for palm oil factory and to use the 3R construct in the thenar oil factory.
1.8 Research Questions
Based on the research, a few inquiry demand to be answered regarding H2O footmark appraisal in palm oil factory. The inquiries are: –
Does the H2O footmark appraisal can find the entire usage of H2O supply in each of the equipment?
Does the boiler go the chief user of the H2O supplied?
1.9 Operational Definition
1.9.1 Water Footprint
A H2O footmark is a step of the entire H2O used to bring forth goods and services that a peculiar person, concern or state utilizations. It is made up of two constituents: direct H2O usage and indirect usage. The indirect H2O usage is measured as ‘virtual ‘ H2O ( the volume of H2O required to bring forth a certain merchandise ) . It includes usage of bluish H2O ( rivers, lakes, aquifers ) , green H2O ( rainfall in harvest growing ) , and gray H2O ( H2O polluted after agricultural, industrial and family usage ) .A
In this context of research, H2O footmark is the entire volume of fresh water used to bring forth the goods and services consumed by the equipments and units of the works.
1.9.2 Water Assessment
In this context of research, H2O appraisal is the method to bespeak the H2O footmark from the first provender of H2O beginning until the terminal of the factory operation. This method been conducted by detecting the H2O used in each of the equipment that required H2O to run.
The chief ground why H2O footmark appraisal is needed as to look after our fresh H2O from be short of, such as river. As the research worker happen out that the palm oil factory operation merely used the beginning of H2O without give it back straight to the beginning. Besides, it needed to increase rigorous environmental ordinances and economic consideration. Finally, the public concern for the quality of the environment and how of import to believe about due to the enlargement of H2O used.
This chapter had successfully discussed about the overview of the research topic which is palm oil factory in the position of the usage, universe market part and palm oil production. In add-on, the research worker besides indicated the hereafter of the palm oil as a bio-diesel which will be easy used across the state in 2011. This chapter besides explained about the jobs that the research worker found in effluent direction in palm oil factory. Furthermore, this first chapter besides stated the aims of the research and the inquiries that need to be answered at the terminal of this research.
Water, the really indispensable component to life is drying up in many parts of the universe. In the United Nations ‘ study on universe H2O resource in 2006, more than 10 billion of the universe ‘s population deficiency of adequate safe H2O to back up basic demands and 40 % of the people has no entree to basic hygiene substructure. Problems like H2O deficits, impairment of H2O quality and environmental restraints, have led to an increased involvement of retrieving and recycling H2O in many parts of the universe.
Furthermore, plantation companies frequently dump palm oil-mill wastewater straight into H2O organic structures, which sometimes-disastrous consequences. River H2O turns brown, smelly and slimed. Fish and other aquatic animate beings are killed, and local people can no longer utilize the H2O for imbibing, bathing, or fishing. In one incident in 2003, the Jakarta Post reported that thenar oil waste dumped by a big Indonesian company, PT London Sumatera, killed 1000s of fish and contaminated the Itam River. In another reported incident in that twelvemonth, 1000s of fish died in the Kuning River in Sumatra due to handle oil wastewater. Compared to Indonesia, Malaysian environmental ordinances may be slightly more purely enforced, but jobs are still widespread.
On the other manus, Malaysia is still the universe ‘s biggest exporter of quality thenar oil with gross of RM65 billion last twelvemonth ( 2008 ) where the H2O used is beyond than one can conceive of. Harmonizing to Datuk Dr. Mohd Basri Wahid, Malayan Palm Oil Board ( MPOB ) General Director, Malaysia was known for its high quality thenar oil compared to other exporting states. Therefore, Malaysia leads the universe as the exporter quality palm oil even Indonesia is the universe ‘s largest manufacturer of palm oil ( Bernama, 2009 ) .
In order to guarantee that the palm oil industry continues to remain resilient and competitory at the planetary degree, all concerned should together keep the good image and repute of Malaysia ‘s high quality thenar oil as a nutrient beginning. It was estimated that 75 per centum of the entire production of the state ‘s palm oil last twelvemonth of 21.76 million metric dozenss was exported. In this regard, he said a proactive and speedy response to petitions and demands of importing states was really of import, peculiarly in guaranting the quality and the safety of palm oil merchandises being exported. Continuing research every bit good as new, advanced engineering must be supported with the confidence of quality and safety of merchandises through the sensing, bar and quality control at every measure of the palm oil supply concatenation.
On the other manus, Indonesia, the state ‘s closest rival, has a relatively bigger country under oil thenar cultivation. Malaysia ‘s palm oil industry needs to be competitory at the planetary degree through the confidence of quality and safety for palm oil merchandises. Malaysia ‘s success in commanding the planetary market for choice palm oil demands to be defended and sustained through the regulative facet of the palm oil industry.
Misbehaviors affecting the industry particularly that related to pollution activities will gnaw the trust and assurance of importing states on the quality and safety of the state ‘s palm oil merchandises. This accomplishment shows that greater the achievement, the bigger effects have to been think of. In this instance of survey, POME is the effects from the accomplishment that we have.
In item, POME is a high volume liquid waste, which is non-toxic, organic in nature but have an unpleasant olfactory property and are extremely fouling ( Hwang et al. , 1978 ) . About 2.5 T of POME are produced for every ton of oil extracted in an oil factory ( Ho et al. , 1984 ; Songip et al. , 1996 ) . Therefore, in twelvemonth 2008, 17.73 million dozenss of palm oil production resulted in about 44.33 million dozenss of POME.
For illustration, Indonesia produces 13.2 billion lbs of rough palm oil resulted in 33 billion lbs of palm oil wastewater in a individual twelvemonth. This sum is tantamount to the domestic sewerage produced by 20 million people. On the other manus, Indonesia ‘s production of rough palm oil in 1999 generated as much wastewater as tenth part of the state ‘s entire population. However, much of that waste is improperly treated or non treated at all.
Wastewater wastewater from palm oil Millss is a mixture of H2O, crushed shells and fat residue ensuing from initial processing of rough palm oil from fresh thenar fruits, which must be crushed within 24 hours of crop. There is normally one factory for every 15 to 20 square stat mis of plantation. Thus, 100s of Millss operate throughout the countryside ‘s of Indonesia and Malaysia. Consequently, palm oil Millss with wet milling procedure are accounted for major production of palm oil in the state and a significantly big measure of H2O is used during the extraction of CPO from the Fresh Fruit Bunch ( FFB ) . Therefore, about half of the H2O used in extraction procedure will ensue in POME ( Thani et al. , 1999 ) .
Specifically, a Water Footprint measures the existent volume of fresh H2O that a concern or fabrication procedure of a merchandise or service removes from the eco-system or from other local utilizations. It takes into consideration the abstraction but besides the H2O flow and losingss during the production procedure every bit good as the flow back to the eco-system or other users after intervention. A Water Footprint is hence the volume of H2O abstracted from local beginnings minus the volume released in the same topographic point after intervention or straight made available for re-use. Hence, measuring the measuring against local H2O emphasis information allows the footprint impact on local communities or eco-systems to be assessed.
In add-on, Borealis findings confirm initial estimations that the fabrication of polyolefins has a limited direct Water Footprint – runing from 1.2 to 6.5 litres of fresh H2O per kg of finished merchandise. But the indirect Water Footprint arising from feedstock and the beginning of energy used is more critical and can treble the entire Water Footprint of the merchandise.
Harmonizing to Mark Garrett, Borealis Chief Executive, Water Footprint is a cardinal construct to better appraisal and manages impacts on local environments and communities. The company had taken the responbilities towards the environments and communities in which they operate really earnestly. Garret besides stated that Water Footprint will be a nucleus index to progress the sustainability of their operation and merchandises together with C and energy measurings.
The Borealis Water Footprint analysis was completed in coaction with the Royal Institute of Technology of Sweden ( KTH ) , using the methodological analysiss presently developed by the Water Footprint Network. The direct Water Footprint was calculated on the footing of a elaborate reappraisal of H2O flows in fabrication procedures and production sites. It follows a pilot undertaking initiated in August 2008 where Borealis together with its cardinal client Uponor investigated the Water Footprint of a polythene cross linked ( PEX ) pipe plumbing system for a 100mA? flats. The pilot helped to scope methodological challenges and informations spreads necessitating more advanced researches.
At that clip, Borealis announced it would look into methodological analysiss and measuring for the plastics industry in coordination with external support from faculty members and concern specializers. As the first plastics company to look into the Water Footprint methodological analysiss, Borealis is in a alone place to turn them into a manageable tool for the industry. The H2O footmark analysis is portion of Borealis Water for the World programme which underlines the company ‘s committedness to progress best-practices for sustainable H2O direction.
2.3 Palm Oil Mill Effluent Technology
The treatability of POME had been examined by a broad scope of engineerings and attacks. The most popular one is anaerobiotic digestion followed by facultative and aerophilic intervention ( Zinatizadeh et.al. 2005 ) . The usage of membrane intervention as the concluding shining measure has besides been applied ( Ahmad et.al. 2003 ) .
2.3.1 Aerobic and Anaerobic Digestion
Conventional biological intervention of anaerobic or aerophilic digestion is the most normally applied method for intervention of different types of effluent. Anaerobic intervention is the most suited method for the intervention of wastewaters incorporating high concentration of organic C.
Anaerobic intervention utilizing up-flow anaerobiotic sludge fixed movie ( UASFF ) reactor can cut down the COD up to 95 % at an mean organic burden rate ( OLR ) of 15g COD/ L.day. A 96 % COD remotion was obtained at an OLR of 10.6g COD/ L.day at an inflowing COD concentration of 42500 mg/L and hydraulic keeping clip ( HRT ) of 4 yearss ( Zinatizadeh et.al. , 2005 ) . The hydraulic keeping clip ranged between 1 and 6 yearss. Throughout the experiment, the removal efficiency of COD was between 80.6 and 98.6 % .
Harmonizing to Yacob et.al. , ( 2005 ) , the start-up operation used for semi commercial closed anaerobiotic digester for POME intervention has achieved high per centum remotion of COD ( up to 97 % ) and satisfactory ratio of volatile fatty acids: alkalinity ( VFA: Alk ) between 0.1 and 0.3. This was achieved by making an active microbial population which was expressed in footings of cardinal public presentation parametric quantities such as per centum COD remotion efficiency, pH, VFA: Alk and hydraulic keeping clip. The lowest Hormone replacement therapy of 17 yearss was achieved in less than 3 months.
Biological intervention utilizing affiliated growing on a revolving biological contractor ( RBC ) was used for the effluent from palm oil factory industries which contain high strength of organic compounds, COD of approximately 16000 mg/L ( Najafpour, 2005 ) . An acclimated Saccharomyces cerevisiae with POME was used as the initial biomass for the affiliated growing on bio-discs. After 5 yearss, 91 % BOD remotion was achieved in a batch experiment while 88 % remotion of COD was obtained with 55 H of HRT. High surface COD burden of 38-210 g COD/m2 twenty-four hours was implemented.
Treatment of POME utilizing tropical Marine barm ( Yarrowia lypolytica ) in a laguna was studied by Oswal et.al. ( 2002 ) . Palm oil factory wastewater ( POME ) , from a mill site in India contained about 25000 mg/L COD, 11000 mg/L BOD, 65 mg/L entire dissolved solids and 9000 mg/L of chloroform-soluble stuff. Treatment of this wastewater utilizing Yarrowia lypolytica NCIM 3589, marine hydrocarbon-degrading barm isolated from Mumbai, India, gave a COD decrease of approximately 95 % with a keeping clip of two yearss.
Treatment with a chemical coagulator further reduced the COD and a pool developed from garden dirt clarified the wastewater and adjusted the pH to between 6 and 7. The complete intervention reduced the COD content to 1500 mg/L which was 99 % decrease from the original.
2.3.2 Membrane Treatment
Harmonizing to Ahmad et.al. ( 2003 ) , a pilot works was designed and constructed for POME intervention. Hence, two phases of intervention have been conducted whereby curdling, deposit and surface assimilation play their functions at the first phase as a membrane pretreatment procedure. Ultrafiltration ( UF ) and rearward osmosis ( RO ) membranes were combined for the membrane separation intervention.
In many European states, H2O is recovered by membrane filtration and reused in agricultural irrigation, nursery gardening, chilling procedures, nutrient and drink industries, paper industry, domestic fowl industry and fabric industry. The production of high-quality H2O from such beginnings possible has been made due to the advancement of H2O renewal engineering.
Consequently, an progressively important function as the dominant engineering in H2O purification will be played by membrane procedure to decide the affair of deficient H2O for sustainable development. In add-on, membrane engineering will be able to do a great part since membranes has the ability to bring forth H2O of exceeding pureness that can be recycled for reuse in a assortment of topographic points ( Howell, 2004 ) .
Hence, many parts of Malaysia face a deficiency of H2O, although the state has renewable H2O that is five times per caput higher than that in many parts in the universe and hapless H2O direction is the perpetrator. The state ‘s per capita renewable H2O about 5,000 M3s per twelvemonth compared to many parts in the universe that had less than 1,000 M3.
Obviously, this job was attributed to unsustainable direction of H2O resources instead than to the measure of H2O available for domestic, industrial and agricultural utilizations. Furthermore, H2O quality issues in Malaysia were expected to go progressively of import as the population continued to turn in the hereafter.
Although, Malaysia is a tropical state holding ample of rainfalls, Malaysia has ne’er been a smooth flow of H2O for even a hebdomad. It is non wholly due to drought that has a short supply of H2O. Urbanization and pollution are chief grounds for H2O emphasis. Consequently, seven of Malaysia ‘s 146 river basins were categorized as contaminated and all the polluted river basins were in Peninsular Malaysia, with Johor exceeding the list in 2006.
Furthermore, in footings of river basin H2O quality, 80 river basins ( 55 % ) were clean, 59 ( 40 % ) somewhat polluted and 7 ( 5 % ) were polluted. Specifically, the major pollutants were Biochemical Oxygen Demand ( BOD ) , Ammoniacal Nitrogen ( NH3-N ) and Suspended Solids ( SS ) . High BOD was contributed mostly by untreated or partly treated sewerage and discharges from agro-based and fabrication industries. The chief beginnings of NH3-N were domestic sewerage and farm animal agriculture, whilst the beginnings for SS were largely earthworks and set down glade activities.
Furthermore, palm oil production is turning fast in line with the swelling universe population and planetary demand. From the earliest yearss, oil thenar thrives in states with tropical clime and equally distributed rainfall. Malaysia and Indonesia have hence emerged as major manufacturers of palm oil. Malaya is the largest manufacturer and exporter of palm oil ( Latif Ahmad et al. , 2003 ) . Similar to other agricultural and industrial activities, palm oil processing had raised environmental issues peculiarly H2O pollution which adversely affects aquatic life and domestic H2O supply.
In add-on, we may hold some vision of H2O part as the flow through the palm oil factory usual pattern by industries. Recently, due to the rigorous environmental Torahs, fresh water emphasis supply and the effluent intervention cost had rose and go one of the major jobs for palm oil Millss.
The palm oil factory industry in Malaysia is identified as the industry that produces the largest pollution burden into the river. Palm oil factory wastewater is really good known to incorporate really high BOD more than 25000 mg/L, high oil and lubricating oil, and low pH around 4.7. Since, 0.87 ton of wastewater is generated with BOD every bit high as 50000 mg/L ( Chungsiriporn, J. Et al. , 2006 ) .
Therefore, the H2O ingestion by the mill needs to be reduced in order to forestall H2O deficit and effluent intervention job in palm oil factory. Hence, when less H2O is used, it will bring forth less effluent. This can be done by look intoing the differences in procedure H2O used between palm oil Millss and implement best pattern on procedure H2O use and handling of mill wastewaters.
One of ways to cut down the consumption of fresh water is to recycle and recycle the H2O within the system in the factory itself. Therefore, the H2O must be audit to implement these reuse and recycle in order to visualise the H2O footmark of the H2O taking from as the get downing the hearing. In add-on, another alternate manner is to better the factory ‘s effluent intervention system. Hence, clean H2O and soiled H2O from the procedure or factory should be separated. Furthermore, rainwater overflow and H2O from cleaning operation should non be sent into the mill outflowing watercourse. High content of wetting agent in the washing H2O is the jobs doing from cleaning operation as the detergent use. The present of non-biodegradable might do the subsiding armored combat vehicle to neglect.
Harmonizing to Latif Ahmad et Al. ( 2003 ) , the latest betterment of development in palm oil factory wastewater intervention is based on membrane engineering which shows high potency in extinguishing environmental job and besides offers H2O recycling for usage as boiler provender H2O. In the interventions, which are, consists two phases of intervention such as curdling, deposit and surface assimilation as the first phase of the intervention. For the combined membrane separation intervention, contributes ultrafiltration and change by reversal osmosis membranes.
Membrane engineering is apparent that the pretreatment procedure was able to take organic affair and suspended solids in POME by 97.9 % with a turbidness of 56 % in COD and 71 % in BOD. The promising consequences from the pret intervention procedure will cut down the membrane fouling phenomenon and debasement in flux for the membrane separation intervention, the turbidness value was reduced to about 100 % , with a 98.8 % decrease in COD and 99.4 % BOD decrease.
In guaranting that flux and force per unit area returned to the original values after each intervention, the cleansing processs were applied. In add-on, the treated POME discharge utilizing this membrane intervention engineering complies with standard dis-charge ordinances. The high-quality treated H2O can be recycled back to the works for internal use such as boiler provender H2O for sterilisation of fresh fruit clump processing, H2O for elucidation of the extracted petroleum palm oil or H2O for hydrocyclone separation of mixture of chapped meats and shells.
Chemical Treatment Tank
UF Feed Tank
UF / RO Membrane
Figure 2.1: Overview of membrane engineering
A pilot works were designed and constructed in a current research, which integrates pretreatment methods and membrane engineering ( UF and RO ) to handle Palm Oil Mill Effluent ( POME ) . Another intent of this research is to retrieve the treated H2O to be recycled for internal works use such as boiler provender H2O for the sterilisation processes of fresh fruit Bunches, H2O for elucidation of the extracted CPO or H2O for hydrocyclone separation of the chapped mixture of meats and shells.
The pre-treatment procedure is necessary to take high contents of suspended solids and oil in POME that would otherwise badly foul the membrane and lead to a shorter membrane life. The pretreatment processes consist of two phases of chemical intervention and activated C intervention for membranes are used to polish the treated H2O further. After this membrane separation intervention system, the merchandise is suited for recycling intents, particularly for the boiler provender H2O.
Furthermore, consequences from the entire intervention system demo a decrease in turbidness, COD and BOD from 10563 NTU, 26107 mg/L and 15800 mg/L to 0.81 NTU ( 100 % remotion ) , 314 mg/L ( 98.8 % remotion ) and 91 mg/L ( 99.4 % remotion ) severally, with a concluding pH of 7. Importantly, the consequences show that this intervention system has a high potency for bring forthing boiler provender H2O that can be recycled back to the works.
Membrane separation in effluent intervention has been widely used and has successfully proven its efficiency in assorted types of industries. Mameri et.al. ( 2000 ) successfully reduced the COD to 90 % utilizing an organic UF membrane for olive oil rinsing H2O. In add-on, Sridhar et.al. ( 2002 ) used RO to handle vegetable oil industry wastewater with a ensuing high rejection of entire dissolved solid ( TDS ) ( 99.4 % ) , COD ( 98.2 % ) and besides complete rejection of coloring material and BOD.
A combination of microfiltration ( MF ) and UF membranes has besides been used for the intervention of trade spent spirits with more than 80 % efficiency in silica rejection ( Ahmad et.al. 2005 ) . Comparison between POME intervention engineerings is shown in Table 2.1. The combination of biological intervention with ultrafiltration, nanofiltration and change by reversal osmosis membranes in handling municipal effluent can accomplish 97 % H2O recovery ( Ahmad et.al. 2003 ) .