Treatment of Municipal Wastewater Through Horizontal Flow Constructed Wetland | [Pakistan Journal of Analytical & Environmental Chemistry • 2018]

Author(s):

1. Ghulamullah Maitlo: Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi, Sindh, Pakistan.

2. Ghulam Abbas Kandhro: 2Department of Basic Sciences, Mathematics and Humanities, Dawood University of Engineering and Technology, Karachi, Sindh, Pakistan.

3. Abdul Karim Shah: Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi, Sindh, Pakistan.

4. Abdul Sattar Jatoi: Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi, Sindh, Pakistan.

5. Abdul Qayoom Memon: Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi, Sindh, Pakistan.

Abstract:

Highly contaminated municipal wastewater is being disposed of into land and rivers without any prior treatment has severe side effects on human and marine animals. This research focused on the treatment of Majeed Keerio village municipal wastewater through horizontal flow constructed wetland system. The experimental study was evaluated and monitored timely over a year. The overall treatment efficiency performance of the wetland system was determined by considering organic pollutants removal efficiency. This study emphasized on the design of horizontal flow constructed wetland for the effective treatment of municipal wastewater of village Majeed Keerio, Sakrand, Sindh. The constructed wetland efficiently reduced COD, BOD5, TSS, turbidity, total phosphate, total nitrogen pollutants of wastewater, which was about 92.3%, 93%, 96%, 96.4% and 74%, respectively. This method reduced all thermotolerant coliforms. Constructed wetland system was found most economical and effective for the treatment of domestic wastewater. The effect of different hydraulic loading rates under varying hydraulic retention times within the constructed wetland was examined. The higher hydraulic retention times resulted in improved pollutants removal efficiency.

Page(s): 135-144

DOI: DOI not available

Published: Journal: Pakistan Journal of Analytical & Environmental Chemistry, Volume: 19, Issue: 2, Year: 2018

Keywords:

Pollutants , Wastewater , constructed wetland , Chemical oxygen demand

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