International network for natural sciences – research journal
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Slaughter waste effluents and river catchment watershed contamination in Cagayan de Oro City, Philippines

By: Oliva P. Canencia, Marlou D. Dalugdug, Athena Marie B. Emano, Richard C. Mendoza, Angelo Mark P. Walag

Key Words: Wastewater, Slaughter house, Slaughter waste effluents, Water quality, River water, Pollution, Philippines

J. Bio. Env. Sci. 9(2), 142-148, August 2016.


Slaughterhouse waste products are commonly known globally to pollute nearby communities and receiving bodies of water. The main aim of this study was to analyze the effluents disposed by Cagayan de Oro City Slaughterhouse to river catchment watershed. Standard methods were utilized in sampling and analyzing water quality parameters to determine the levels of nitrates, BOD, COD, total coliform, and lead. It was found out that the majority of wastes produced are internal organs, blood and urine mixtures, and manures. The study also revealed that all parameters tested crossed the permissible limits set by the government for effluent and inland water except for BOD and nitrates, in the river watershed. It was also determined that during wet seasons, major contaminants like lead and nitrates were diluted resulting to lower levels when compared to national standards. The result of this study also revealed the need for further remediation of the river water quality and intervention strategies to sustainably manage and prevent disposal of untreated effluents.

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