Effect of dewatering aid dosage in electroforced sedimentation

Alam, Md. Monjurul and Jami, Mohammed Saedi and Alam, Md Zahangir and Iwata, Masashi (2014) Effect of dewatering aid dosage in electroforced sedimentation. International Journal of Chemical and Environmental Engineering, 5 (5). pp. 290-293. ISSN 2078-0737

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Abstract

Nowadays wastewater treatment plants are producing huge amount of sludge. The water content of the traditionally dewatered sludge, resulting from drying beds, centrifuges, vacuum filters, screw press filters and pressure filters, remains a critical factor affecting the choice of transportation vehicles, transportation costs, and suitability of sludge for incineration. The objective of this study is to investigate the role of polyacrylamide dose and constant current density on the electroforced sedimentation of sludge dewatering process. Zinc Oxide slurry was used as model sludge. Electroforced sedimentation experiments of zinc oxide suspended in aqueous media with and without polyacrylamide were carried out under various constant electric current densities. It was observed that at the same constant electric current density, the voltage difference was decreasing with the increase of polyacrylamide dose. Moreo ver, the highest sedimentation rate was attributed at 1.5% polyacrylamide in electroforced sedimentation of zinc oxide slurry under different constant current densities

Item Type:	Article (Journal)
Additional Information:	5545/42281
Uncontrolled Keywords:	Electroforced Sedimentation; Dewatering; Zinc Oxide; Constant Current; Polyacrylamide
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:	10 Mar 2015 14:48
Last Modified:	03 Aug 2017 11:45
URI:	http://irep.iium.edu.my/id/eprint/42281

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