COAGULATION FOR TREATMENT OF SWINE SLAUGHTERHOUSE WASTEWATER

Main Article Content

Ha Manh Bui
Huong Thi Giang Duong

Abstract

In this study, wastewater taken from Nam Phong swine slaughterhouse, Ho Chi Minh City, was used to evaluate treatment efficiency of common coagulants, including Alum (Aluminum Sulfate - Al2(SO4)3.18H2O), Poly-Aluminum Chloride (PAC) and Ferrous Sulfate (FeSO4.7H2O), using Jar-test system. Experiments were conducted using one-factor-at-a-time method to examine three variables: pH, stirring speed and coagulant dosages. The results show that both Alum and PAC perform over 90% removal of color, turbidity, COD and total phosphor from slaughterhouse wastewater at pH 7 with a stirring speed of 75 revolutions per minute (RPM) and average coagulant dosages (450 mg/L for Alum and 550 mg/L for PAC). Meanwhile, in the appropriate conditions at pH 10 and 75 RPM with a chemical dosage of 350 mg/L, COD and total phosphor (TP) removal efficiencies by Ferrous Sulfate exceed 87%, but those of turbidity and color only reach 25%. This finding could be a promising coagulation method as a pretreatment or adding method to swine slaughterhouse wastewater.

Article Details

How to Cite
Bui, H. M., & Duong, H. T. G. (2017). COAGULATION FOR TREATMENT OF SWINE SLAUGHTERHOUSE WASTEWATER. GeoScience Engineering, 63(1), 15–21. Retrieved from https://geoscience.cz/ojs/index.php/GSE/article/view/137
Section
Research Paper
Author Biographies

Ha Manh Bui, Sai Gon University

Department of Environmental Sciences

Huong Thi Giang Duong, Sai Gon University

Department of Environmental Sciences