Performance studies of constructed wetlands for treatment of wastewater under temperate climatic conditions-Reference-Cited by-同舟云学术

Performance studies of constructed wetlands for treatment of wastewater under temperate climatic conditions

Published:2022-12-22 Issue: Volume: Page:
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Author:

Harne Kailash¹^ORCID,Joshi Himanshu²

Affiliation:

1. Netaji Subhas University of Technology, New Delhi

2. Indian Institute of Technology, Roorkee

Abstract

Abstract Phytoremediation also known as constructed wetlands is an effective method of treatment of municipal as well as industrial wastewater. The efficacy of this method has already been tested in European and American countries and found to be the best method of wastewater treatment. Efforts have been made in the present work to check the efficacy of phytoremediation in the form of constructed wetlands under Indian climatic conditions. A pilot plant of constructed wetlands has been constructed on the premises of the Uttaranchal Jal Nigam Sewage treatment plant and municipal wastewater has been allowed to pass through the constructed wetland. It has been observed that BOD removal at 24 0C is governed by the equation Ce/Co = e-1.0042 x t and the removal rate constant of BOD has been observed to be 0.795 d-1 at 20 0C. It has been observed that the pilot-scale constructed wetland is bringing effluent BOD and TSS up to 20 mg/l and 30 mg/l respectively consistently for the duration under study. The values of hydraulic retention time, hydraulic loading, and organic loading for achieving this performance are found to be 1.75 days,13.22 cm/d, and 142.78 kg/ha. d respectively. Performance study of constructed wetland and the existing activated sludge treatment has shown that the percent removal for the parameters TSS, BOD, COD, and Fecal Coliforms is near to the same order except for TN and TP, where the activated sludge process unit shows higher removal than the constructed wetland.

Publisher

Research Square Platform LLC

Reference28 articles.

1. Bavor H.J., Roser D. J., Fisher P. J., and Smalls I. C. (1988). Joint study on sewage treatment using shallow lagoon- aquatic plant systems. Treatment of Secondary Effluent, Water Research Laboratory, Hawkesbury Agricultural College, Richmond NSW, Australia.

2. Bureau of Indian Standard (BIS) No.4764 (1973). Tolerance Limit for Sewage Effluent Discharged into Surface Water Sources.

3. An assessment of the root zone method of wastewater treatment;Conley LM;J. WPCF,1991

4. Cooper P. F., (Editor) (1990). European Design and Operation Guidelines for Reed Bed Treatment Systems. Prepared by the European Community/European Water Pollution Control Association Expert Contact Group on Emergent Hydrophyte Treatment Systems. https://agris.fao.org/agris-search/search.do?recordID=US201300226299

5. Cooper P.F. and Hobson J.A., (1990). Sewage treatment by reed bed systems: the present situation in the United Kingdom. In: Constructed Wetlands For Wastewater Treatment: Municipal, Industrial and Agricultural, D. Hammer Ed., 153–171, Lewis Publisher, Chelsea, MI