eprintid: 20198 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/02/01/98 datestamp: 2024-06-04 14:19:56 lastmod: 2024-06-04 14:19:56 status_changed: 2024-06-04 14:16:50 type: article metadata_visibility: show creators_name: Abdullah, N.D.B. creators_name: Isa, M.H. creators_name: Juani, R.H.M. creators_name: Sultan, A.M.S.B.H.M. creators_name: Nayan, Z.B.H. creators_name: Mustafa, M.R.U. title: Organic Matter Removal from Sanitary Landfill Leachate Through Chemical Oxidation ispublished: pub keywords: Chemical oxygen demand; Design of experiments; Leachate treatment; Oxidation; pH effects; Sulfur compounds; Wastewater treatment, Advanced Oxidation Processes; Chemical oxidation; COD removal; Landfill leachates; Organic matter removal; Oxidation potentials; Persulfate activations; Persulphate; Sanitary landfill leachate; Sulfate radicals, Iron compounds note: cited By 0; Conference of 1st International Conference on Emerging Smart Cities, ICESC 2022 ; Conference Date: 1 December 2022 Through 2 December 2022; Conference Code:306839 abstract: Advanced Oxidation Processes (AOPs) have been widely used for wastewater treatment. Persulfate (PS) activation through different pathways has attracted a lot of attention; due to the generation of sulfate radicals which have high oxidation potential. In this study, a series of laboratory-scale experiments were conducted on landfill leachate, using PS/Fe2+/H2O2 and PS/Fe2+/SO3 2â�� systems. A statistical design of experiments was adopted using Design Expert 11 software. COD removal efficiency for both systems was evaluated and the optimum operating conditions were determined using Response Surface Methodology. The effects of the independent variables (pH, chemical doses, and reaction) on the removal of COD were studied. The optimised COD removal was 68 at pH 5 for PS/Fe2+/H2O2 system. Fe2+, H2O2, and PS doses were 1.95 mM, 0.05 mM, and 0.50 mM, respectively, with 10 min reaction time. 90 COD removal was obtained at pH 3.67, Fe2+ dose of 0.5 mM, SO3 2â�� dose of 0.5 µM, and PS dose of 1.5 mM with 17 min reaction time for PS/Fe2+/SO3 2â�� system. © 2024, Institute of Technology PETRONAS Sdn Bhd. date: 2024 official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184281426&doi=10.1007%2f978-981-99-1111-0_41&partnerID=40&md5=35d9f9acea65b5a1661760b52ed2383a id_number: 10.1007/978-981-99-1111-0₄₁ full_text_status: none publication: Lecture Notes in Civil Engineering volume: 324 pagerange: 479-487 refereed: TRUE citation: Abdullah, N.D.B. and Isa, M.H. and Juani, R.H.M. and Sultan, A.M.S.B.H.M. and Nayan, Z.B.H. and Mustafa, M.R.U. (2024) Organic Matter Removal from Sanitary Landfill Leachate Through Chemical Oxidation. Lecture Notes in Civil Engineering, 324. pp. 479-487.