Pregledni rad
https://doi.org/10.15255/CABEQ.2019.1703
Treatment for Landfill Leachate via Physicochemical Approaches: An Overview
K. S. Khoo
; Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
X. Tan
; b)College of Materials and Chemical Engineering, Heilongjiang Institute of Technology, Harbin 150050, PR China; c)State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, PR China;
P. L. Show
orcid.org/0000-0002-0913-5409
; Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
P. Pal
; School of Environmental Science and Engineering, Indian Institute of Technology, Kharagpur, West Bengal – 721302, India
J. C. Juan
; Nanotechnology & Catalysis Research Centre (NANOCAT), University of Malaya, 50603 Kuala Lumpur, Malaysia
T. C. Ling
; Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
S.-H. Ho
; College of Materials and Chemical Engineering, Heilongjiang Institute of Technology, Harbin 150050, PR China
T. H. P. Nguyen
; Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
Sažetak
Leachate waste consists of various mixtures of organic, inorganic, and heavy metal contaminants, which are responsible for groundwater and surface water contamination. Landfills apply physical, chemical, and biological processes for the treatment of leachate. Most studies on leachate treatment by coagulation and flocculation are based on the selection and performance of natural based biopolymers in comparison with various inorganic metal salts and grafted polymers used for the removal of contaminants. In addition, adsorption processes utilizing non-conventional activated carbons as absorbents are the current emerging focus of the researchers in leachate treatment. These adsorbents are low-in-cost, efficient, and renewable compared to conventional adsorbents. The present paper aimed to evaluate and review the technology utilising various greener approaches in coagulation, flocculation, and adsorption as the physicochemical approaches to leachate treatment. The challenges and future work regarding the development of these green products in the commercial markets were comprehensively evaluated.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Ključne riječi
landfill leachate; leachate treatment; coagulation; flocculation; adsorption
Hrčak ID:
237048
URI
Datum izdavanja:
19.4.2020.
Posjeta: 1.828 *