TREATMENT AND RECYCLING OF WASTEWATER FROM SELECTED PIGGERY IN FUTA COMMUNITY

Abstract

The establishment of piggery farms in residential areas is becoming an issue of public health concern owing to the discharge of its contaminated wastewater into the surrounding environment. Due to potential pollutants in these effluents, this study also attempted treating and recycling wastewater from selected piggery in FUTA community. The available piggery farms (medium and small-scale) cannot afford the cost of most existing municipal wastewater treatment plant. In furtherance, designing an effluent treatment plant made from locally available plastic materials which consist of bio-filters such as coarse, fine sand and activated carbon was considered. The water quality characteristics was carried out before the treatment of the wastewater in order to know the present contaminants. Moreover, the microbial-treated water was channeled into the filtration tank, where the larger particles of dirt (gravel and coarse sand) were removed. Also, grease and oil were removed by the activated carbon. The performance of the treatment plant was evaluated on the effluents and the results showed a decrease in Biological Oxygen Demand, Dissolved Oxygen, Phosphorus, Total Nitrogen, Total Dissolved Solids, Total Suspended Solid, Total Solids and Heavy metals (Cadmium, Lead and Zinc). Surprisingly, there was an increase in pH value of the microbial-treated water due to the detention time. The values obtained after treatment were compared to the Food and Agricultural Organization (FAO) water quality standard. This showed that the water is safe for discharge into the environment (waterways) and it can be used for irrigation purposes.

Keywords

• Piggery farms,wastewater,detention time,activated carbon

References

1. Barrett, J. M., Bryck, M. R., Janonis, B. A., & Logsdon, G. S. (1991). Manual of Design for Slow Sand Fitration. (D. Hendricks, Ed.) West Quiney Avenue Denver: AWWA Research Foundation and American Water works Association.Department of Livestock (2007). Piggery farm database in Thailand. Retrieved May 13, 2009, from http://www.dld.go.th/ict/yearly/yearly49/stat/annex05.xls.Huisman, L. and Wood, W. E. (1974). Slow Sand Filtration. World Health Organization, Geneva, Switzerland.pp. 1-89.Medramootoo, C. A., Johnston, W. R., & Willardson, L. S. (1997). Management of agricultural drainage water quality. Food and Agricultural Organization. Rome: FAO water Report.Mohammed, B. (2006). Design and Performance Evaluaation of a Wastewater Treatment. A.U. Journal Technology, IX(3), 193-198.Noophan, P. 2009. The piggery waste problem and sustainable approach management. Thai Environmental Engineering Magazine 5:19-25.Steinfield, H., Gerber, P., & Wassenaar, T. D. (2006). Livestock's role in water depletion and pollution. Vegetarian Journal FAO, 126-179.Thalin, P. A., & Brumm, M. C. (1991). Water: The forgotten nutrient. In: Swine Nutrition. (E. R. Miller, D. E. Ullrey , & A. J. Austin, Eds.) Stoneham, MA, USA.: Butterworths-Heinemann pp (9-15).Vigneswaran, S., & Sundaravadivel, M. (2004). Recycle and Reuse of Domestic Wastewater. In V. V. Saravanamuthu (Ed.), Wastewater Recycle,Reuse, and Reclamation. Encyclopedia of Life Support Systems (p123).