Influence of Filter Cell Configuration and Process Parameters on the Electro-Osmotic Dewatering of Sewage Sludge

被引：27

作者：

Citeau, M. ^{[1
]}

Larue, O. ^{[1
]}

Vorobiev, E. ^{[1
]}

机构：

[1] Univ Technol Compiegne, Lab Transformat Integrees Mat Renouvelable, F-60205 Compiegne, France

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2012年 / 47卷 / 01期

关键词：

agro-industrial sludge; electroosmotic dewatering; filter-press; mechanical dewatering; ACTIVATED-SLUDGE; PILOT-SCALE; PRESSURE; ELECTROFILTRATION; CLAYS; REMOVAL; FIELD; TIME;

D O I：

10.1080/01496395.2011.616567

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This article shows a laboratory parametric study carried out for optimizing the electro-dewatering (EOD) of agro-industrial sludge. The sludge dry matter reached 40% w/w after 3 hours of EOD with current density of 80 A/m(2), against 20% w/w after 11 hours of mechanical compression. The electricity consumption was 0.27 kWh/kg of water removed. Another advantage of EOD lies on the depolluting effect observed. The chemical oxygen demand of sludge was decreased by 64% probably due to oxidization reactions at anode. 97% of sodium and 63% of iron contained in sludge were also transferred to the filtrate during the treatment.

引用

页码：11 / 21

页数：11

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