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Concentrated Landfill Leachate Treatment by Electro-Ozonation
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Author(s): Amin Mojiri (University Technology Mara, Malaysia), Lou Ziyang (Shanghai Jiao Tong University, China), Wang Hui (Shanghai Jiao Tong University, China)and Ali Gholami (Islamic Azad University – Ahvaz, Iran)
Copyright: 2019
Pages: 21
Source title:
Advanced Oxidation Processes (AOPs) in Water and Wastewater Treatment
Source Author(s)/Editor(s): Hamidi Abdul Aziz (Universiti Sains Malaysia, Malaysia)and Salem S. Abu Amr (Universiti Kuala Lumpur, Malaysia)
DOI: 10.4018/978-1-5225-5766-1.ch007
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Abstract
Municipal solid waste has continued to be a major problem in many nations of the world. The primary methods of treating landfill leachate include physical-chemical and biological treatment processes. Pressure-driven membrane processes, such as microfiltration, ultrafiltration, nanofiltration, and reverse osmosis (RO), are among the utmost promising and capable ways for treating landfill leachate. The concentrated leachate created from pressure-driven membrane processes typically represents 13%–30% of total incoming landfill leachate. Concentrated leachate is a dark brown solution with high levels of pollutants. Treating concentrated leachate is extremely difficult, and thus, a combined treatment system is suggested. In the present study, concentrated landfill leachate was treated using a combined treatment technique that included electro-ozonation. The removal efficacies of chemical oxygen demand (COD), color, and nickel were monitored at original pH (7.3) as well as current and voltage of 4 A and 9 V, respectively.
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