Characteristics of leachate upon hydrothermal treatment processing: case study of Ampang district municipal solid waste leachate

Hadi, Purwanto and Khamis, Siti Salwa and Mohd. Salleh, Hamzah and Rozhan, Alya Naili and Abd Rahman, Mohamed and Othman, Rashidi (2022) Characteristics of leachate upon hydrothermal treatment processing: case study of Ampang district municipal solid waste leachate. IIUM Engineering Journal, 23 (2). pp. 205-217. ISSN 1511-788X E-ISSN 2289-7860

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Abstract

Municipal solid waste (MSW) leachate is a hazardous liquid produced from decomposition of solid waste with high amount of organic matter and ammonia-nitrogen with obnoxious smell. This study aimed to investigate the behavior of MSW leachate when subjected to hydrothermal treatment using an autoclave set up at below water critical points (temperatures of 100 °C, 150 °C, and 200 °C at 0.1 MPa, 0.4 MPa and 1.6 MPa, respectively) with 15 min and 60 min holding time. Physicochemical characterization of the setup at 200 °C and 1.6 MPa at 60 min holding time indicates a feasible parameter when materials that caused the dark color and obnoxious smell were almost completely removed. Over 99% of chemical oxygen demand and ammonia nitrogen was eliminated when treated with hydrothermal treatment and yielded a condensed liquid product that complied with permissible limits set by the National Water Quality Standard Malaysia and the World Health Organization for wastewater discharges for irrigation purposes. Chromatographic analysis indicated that most of the organic compounds present in the raw leachate was removed. This processing is believed to be an environmentally friendly method that can treat MSW leachate rapidly, and it has the potential to be used as an effective alternative to existing leachate treatment technologies.

Item Type:	Article (Journal)
Uncontrolled Keywords:	municipal solid waste; leachate; hydrothermal; organic compound
Subjects:	G Geography. Anthropology. Recreation > GE Environmental Sciences Q Science > QD Chemistry T Technology > TD Environmental technology. Sanitary engineering > TD159 Municipal engineering T Technology > TD Environmental technology. Sanitary engineering > TD169 Environmental protection T Technology > TD Environmental technology. Sanitary engineering > TD172 Environmental pollution T Technology > TD Environmental technology. Sanitary engineering > TD785 Municipal refuse. Solid waste T Technology > TP Chemical technology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Architecture and Environmental Design > Department of Landscape Architecture
Depositing User:	Dr rashidi othman
Date Deposited:	23 Sep 2022 15:10
Last Modified:	23 Sep 2022 15:10
URI:	http://irep.iium.edu.my/id/eprint/100158

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