环境工程学报2012，Vol.6Issue(11)：4185-4190,6.
造纸污泥的电渗透脱水效果
Electro-osmotic dewatering of pulp and paper sludge
摘要
Abstract
The effects of mechanical force,voltage gradient,and sludge height on the dewatering efficiency and energy consumption were evaluated.The results show that the dewatering efficiency increased as the mechanical force increased from 25 kPa to 76 kPa.But further increase of the mechanical force did not further increase the dewatering efficiency.The increase of voltage gradient greatly improved the dewatering efficiency,but required higher energy consumption.At the voltage gradient of 30 V/cm,both the dewatering efficiency and energy consumption increased as the sludge thickness increased from 0.35 cm to 1.40 cm.For all the electro-dewatering tests conducted herein,the energy consumptions were between 0.14 and 0.28 kWh/kg removed water when the sludge's moisture content decreased from initially 74.85% to 60%.From the perspective of dewatering efficiency and energy conservation,the optimal operating conditions for the electro-dewatering of pulp and paper sludge were determined to be the mechanical pressure of 76 kPa,the voltage gradient of 30 V/cm,and the sludge thickness of 0.7 cm.关键词
造纸污泥/电渗透/脱水Key words
pulp and paper sludge/electro-osmotic/dewatering分类
资源环境引用本文复制引用
董立文,张鹤清,汪诚文,李春鞠,王玉珏..造纸污泥的电渗透脱水效果[J].环境工程学报,2012,6(11):4185-4190,6.基金项目
西门子知识交流中心基金项目 （）
国家“水体污染控制与治理”科技重大专项 （）
