Effect of flocculation aids on the electric field assisted dewatering of solid liquid systems

Jami, Mohammed Saedi and Iwata, Masashi and Alam, Md. Monjurul and Alam, Md. Zahangir (2014) Effect of flocculation aids on the electric field assisted dewatering of solid liquid systems. In: Fourth International Conference on Geotechnique, Construction Materials and Environment (GEOMATE 2014), 19-21 Nov. 2014, Brisbane, Australia.

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Abstract

Various construction techniques such as tunnel construction and earth drilling result in the production of huge amount muddy water with a high solid-to-liquid ratio. Consequently there is a need for disposing these large quantities of muddy wastewater. Dewatering by conventional belt press filters can achieve only small solids contents leading to high expenditure for the transport and disposal of these materials. Another option is the incineration. But since the water content is usually very high, energy consumption is the major concern. In this study, constant-current electroforced sedimentation (EFS) of zinc oxide is analyzed using the Terzaghi–Voigt combined model by neglecting the creep deformation of the material and the effect of adding dewatering aids on the enhancement of water removal is investigated. High current density yields higher dewatering. Increase in initial solid content slightly improves the effectiveness of dewatering. The addition of polyacrylamide as a dewatering aid enhanced the electroforced sedimentation.

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Additional Information:	5545/40463 -PROCEEDINGS OF FOURTH INTERNATIONAL CONFERENCE – GEOMATE 2014 GEOTECHNIQUE, CONSTRUCTION MATERIALS AND ENVIRONMENT BRISBANE, AUSTRALIA 19-21 NOVEMBER, 2014 - Vol: 4(1) 978-4-9905958-3-8 C3051 pp: 524-527
Uncontrolled Keywords:	Electroforced Sedimentation, Dewatering, Zinc Oxide, 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
Depositing User:	Prof. Ir. Dr. Mohammed Saedi Jami, PhD CEng MIChemE
Date Deposited:	06 Jan 2015 17:05
Last Modified:	11 Jun 2018 10:51
URI:	http://irep.iium.edu.my/id/eprint/40463

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