Induction Performance of pn-Site Low Cost Treatment Unit for Treating Kitchen Greywater at Village House

In many village houses in Malaysia, a significant portion of greywater is discharged into stream without treatment. The untreated kitchen greywater causes foul odors, mosquitoes breeding area and drainage water pollution. Therefore, this study was established to install an on-site natural pre-treatment in the wetland system for kitchen greywater treatment at village house in Parit Bengkok, Batu Pahat. Low cost and less maintenance treatment system is preferred option to the villagers. Kitchen greywater loadings and characteristics and household occupants and their activitied were measured before the installation of the system. The treatment unit is comprised of oil and grease trap, pre-treatment filter, constructed wetland bed planted with Lepironia Articulata and extended filtration system. Preliminary performance of the treatment system was evaluated based on the chemical quality of pH, Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD). From the result, the maximum loading of the kitchen greywater was 300L/day. The wetland treatment has shown the improving pH values of effluent of 4.6 to 6.9. The overall percentages removal of BOD and COD was 73% and 69% respectively. Hence, it was found that the treatment unit for kitchen greywater able to promotes environmental health and it can serve as effective solution for managing greywater in village houses.

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