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primary topic: Effect of H2O2 Oxidation/Alkaline Hydrolysis on Waste Activated Sludge Disintegration and Dewaterability

Effect of H2O2 Oxidation/Alkaline Hydrolysis on Waste Activated Sludge Disintegration and Dewaterability
type: AcademicArticle
type: Article
abstract: In the present study, the effect of hydrogen peroxide oxidation/alkaline hydrolysis was investigated on waste activated sludge (WAS), to enhance its disintegration and dewaterability. The effects of three operating parameters viz., pH, H2O2 dose and reaction time, on the degree of WAS disintegration and dewaterability were assessed using response surface methodology. The optimum operating variables to achieve VSS removal 20, CST reduction 20, sCOD 6100 mg/L and EPS 455 mg/L were: pH 10.5, 1300 g H2O2/kg TS and 40 min reaction time. Results showed that WAS can be efficiently disintegrated and dewatered by H2O2 oxidation/alkaline hydrolysis for subsequent biological digestion. © The Authors, published by EDP Sciences, 2018.
date: 2018
volume: 65
is part of: E3S Web of Conferences
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ConferenceItemEPrint
is part of: repository

EDP Sciences
type: Organization

E3S Web of Conferences
type: Collection
issn: 22671242

M.H. Isa
type: Person
given name: M.H.
family name: Isa

G.C. Heng
type: Person
given name: G.C.
family name: Heng

M.H. Lim
type: Person
given name: M.H.
family name: Lim

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primary topic: Effect of H2O2 Oxidation/Alkaline Hydrolysis on Waste Activated Sludge Disintegration and Dewaterability