Thickening and dewatering of waste activated sludge from WWTP with semi-coke powder

被引：1
|
作者：
Zhang, Liping [1 ]
Wu, Shengnian [1 ]
Xue, Jingwen [1 ]
Chi, Guoben [1 ]
Wang, Wenxiao [1 ]
机构：
[1] China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2021年 / 56卷 / 16期
关键词：
Semi-coke powder; WAS; sludge thickening; dewatering performance; skeleton rigid structure; low calorific value;
D O I：
10.1080/01496395.2020.1851262
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Semi-coke powder was selected as the conditioner to improve waste-activated sludge (WAS) dewaterability. The specific resistance to filtration (SRF) of the conditioned WAS with 250% semi-coke powder declined significantly from 1.47 x 10(13) m/kg to 1.82 x 10(11)m/kg, the moisture content (MC) of filter cake also obviously decreased from 87.8% to 61.3%, and the turbidity of supernatant was lowered to 1.5-3 NTU. The low calorific value of filter cake was enhanced to 22.47 MJ/kg.
引用
收藏
页码：2838 / 2847
页数：10
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