INFLUENCE OF FERRIC IRON CONTENT ON THE TREATMENT EFFICIENCY OF PRINTING AND DYEING WASTEWATER

被引：0
|
作者：
Ji, Shifeng [2 ]
Gao, Chunmei [1 ]
Yang, Hong [1 ]
Chu, Ming [1 ]
Wang, Chunfeng [1 ]
机构：
[1] Shanghai Ocean Univ, Coll Marine Sci, Shanghai 201306, Peoples R China
[2] China Bluestar Lehigh Engn Corp, Shanghai, Peoples R China
来源：
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL | 2011年 / 10卷 / 07期
关键词：
bio-ferric; membrane bioreactor (MBR); printing and dyeing wastewater; sludge; ACTIVATED-SLUDGE FLOCS; STABILITY;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Adding ferric or bio-ferric agent is method to improve membrane fouling and prolong membrane life. This paper analyses the influence of ferric content on treatment effect of printing and dyeing wastewater, through examining the change of COD and dyestuff content in supernatant with the change of ferric content in sludge and in supernatant. COD in supernatant is reduced with increase of ferric content in sludge, and the dyestuff content in supernatant is reversed, which might be due to the adsorptivity of ferric hydroxide flocs to the pollutants and the dyestuff. COD and dyestuff content in supernatant increased as the ferric content increases in supernatant. It is because the worse the performance of bio-ferric sludge, the lower the degradability of sludge to pollutants.
引用
收藏
页码：965 / 969
页数：5
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