Palm oil mill effluent (POME) contains a high concentration of organic matter. Currently, some 85% of POME treat-ment of more than 400 mills in the country is based on open ponding system, which involves biologi- Kinetic coefficients for palm oil mill The waste water has high organic matter content, biochemical oxygen demand BOD is about 25000ppm, required by qualified deal before emissions. Most palm oil mills in Malaysia have adopted the ponding system for the treatment of POME [ 20 ]. Theoretical considerations were reviewed and discussed in relation to the design of ponds. Palm oil mill effluent (POME) is a po-tential environmental pollutant. The coefficient for a pond exhibiting plug flow was found to be 0.068 day~x. (Palm Oil Mill Effluent Treatment, 2015) Ponding is a general term which includes waste stabilization lagoons (ponds) and oxidation ponds. Ponding is proposed as a viable low-cost treatment method for .palm oil and rubber mill effluents. Some first order kinetic coefficients were calculated for rubber mill effluents based on data for existing ponding systems. The Malaysian experience in effluent control in the palm oil industry due to the opening of the factory vastly. −Typical palm oil mill process and POME generation points Separator sludge Crude palm oil Clarification Drying Digester and pressing Thresher Sterilizer (Direct injection) Fresh fruit bunches Sludge pit Sterilizer condensate Hydrocyclonewashwater Treated effluent Open ponding Mill boiler Fresh water Motive steam, 3 barg The current POME treatment trend is now gearing toward biogas capture technology and integrated POME treatment system with the ultimate aim of achieving zero discharge concept in the palm oil mill. Kinetic coefficients for palm oil mill effluent for both completely mixed and plug flow systems were also presented. panied by the generation of effluent. Adoption of such models were deemed closest to a way of designing ponds. These constants ranged from 0,065 to 0.27 day1. aquatic life. Comparing the pollution load of the palm oil mill industry with domestic sewage, in average, the water pollution of the total palm oil mill industry is equal to the wastewater generated by around 3 million people per day - in terms of BOD 5 (Annex A2 and map). Both empirical and rational design models were presented. Applications of ponding systems for palm oil mill effluent, rubber effluent and domestic sewage in Malaysia were discussed. The reason of using ponding system is due to its cost that is low cost in term of labour compared to other treatment method [5]. These constants ranged from 0,065 to 0.27 day1. The most common method in treating Palm oil mill effluent (POME) is using a conventional ponding method. This palm oil mill effluent treatment system is cost-effective, only needs adequate space, less investment costs. On average, 1.5 m3 water is needed to pro-cess 1 t of fresh fruit bunches and half of this ends up as POME. Insufficient data prevented the derivation of kinetic constants for domestic sewage oxidation ponds. In general, there are four types of treatment systems adopted by the palm oil industry, It is about 85 % of palm oil mills in Malaysia had taken this method as their way to treat the POME. The term oxidation pond has also been loosely used and can mean aerobic, facultative, maturation, or sometimes it may even be used for anaerobic pond. Pool sewage treatment system is the most used and effective treatment. This polluting effluent with its high content of chemical oxygen demand (COD), 50,000 mg/L, biological oxygen demand (BOD), 30,000 mg/L, oil and Sewage in Malaysia have adopted the ponding system for the treatment of POME 20. 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