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Co-treatment of landfill leachate and municipal wastewater using the ZELIAC/zeolite constructed wetland system


Citation

Mojiri, Amin and Lou, Ziyang and Mohd Tajuddin, Ramlah and Farraji, Hossein and Alifar, Nafiseh (2016) Co-treatment of landfill leachate and municipal wastewater using the ZELIAC/zeolite constructed wetland system. Journal of Environmental Management, 166. pp. 124-130. ISSN 0301-4797; ESSN: 1095-8630

Abstract

Constructed wetland (CW) is a low-cost alternative technology to treat wastewater. This study was conducted to co-treat landfill leachate and municipal wastewater by using a CW system. Typha domingensis was transplanted to CW, which contains two substrate layers of adsorbents, namely, ZELIAC and zeolite. Response surface methodology and central composite design have been utilized to analyze experimental data. Contact time (h) and leachate-to-wastewater mixing ratio (%; v/v) were considered as independent variables. Colour, COD, ammonia, nickel, and cadmium contents were used as dependent variables. At optimum contact time (50.2 h) and leachate-to-wastewater mixing ratio (20.0%), removal efficiencies of colour, COD, ammonia, nickel, and cadmium contents were 90.3%, 86.7%, 99.2%, 86.0%, and 87.1%, respectively. The accumulation of Ni and Cd in the roots and shoots of T. domingensis was also monitored. Translocation factor (TF) was >1 in several runs; thus, Typha is classified as a hyper-accumulator plant.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
DOI Number: https://doi.org/10.1016/j.jenvman.2015.10.020
Publisher: Elsevier
Keywords: Co-treatment; Landfill leachate; RSM; Wetland; ZELIAC; Zeolite
Depositing User: Nabilah Mustapa
Date Deposited: 08 Jun 2016 02:09
Last Modified: 08 Jun 2016 02:09
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.jenvman.2015.10.020
URI: http://psasir.upm.edu.my/id/eprint/16899
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