Optimisation of organic matter removal from landfill leachate using ferrous (II)/Persulfate (PS) system

Samsul, Nabilah and Isa, Mohamed Hasnain and Shams, Shahriar and Hj Md. Juani, Rozeana and Jami, Mohammed Saedi (2023) Optimisation of organic matter removal from landfill leachate using ferrous (II)/Persulfate (PS) system. In: 8th Brunei International Conference on Engineering and Technology (BICET 2021), 08-10 November 2021, Brunei Darussalam.

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Abstract

Fe (II) activated Persulfate (PS) enhanced with reducing agent, Hydroxylamine (HA) was selected in this study for landfill leachate treatment. Central composite design (CCD) under response surface methodology (RSM) was used to design the experiment and predict the optimum operating conditions. The effects of independent parameters Persulfate dose, Fe (II) Dose, Hydroxylamine dose, pH level and Reaction time were investigated with effluent COD concentration and COD removal efficiency as responses. Based on the ANOVA analysis, it was found that all the parameters and their interactions played a role in the treatment of landfill leachate. The optimum treatment condition was 0.58 μM, 38 μM, 15 μM, 2.13, and 31 minutes for PS dose, Fe (II) dose, Hydroxylamine dose, pH level and reaction time, respectively. The optimum condition was predicted to achieve effluent COD of 642 mg/L and COD Removal of 56%. The experimental values obtained under optimum conditions were 967 mg/L and 70%, respectively; variations attributed to the varying influent composition of leachate. The study found that Fe (II) activated PS enhanced with Hydroxylamine can be used to remove COD from landfill leachate.

Item Type:	Conference or Workshop Item (Slide Presentation)
Subjects:	T Technology > TP Chemical technology > TP155 Chemical engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Prof. Ir. Dr. Mohammed Saedi Jami, PhD CEng MIChemE
Date Deposited:	17 Jul 2023 16:41
Last Modified:	17 Jul 2023 17:07
URI:	http://irep.iium.edu.my/id/eprint/105591

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