RETRACTED: Effective Removal of Sulphide and Cyanide from Coking Wastewater (Retracted Article)

被引：0

作者：

Zhu, Kaijin ^{[1
]}

Ren, Xiaoli ^{[1
]}

Wei, Jingli ^{[1
]}

Duan, Xiaofang ^{[1
]}

Yao, Ling ^{[1
]}

Zhao, Runzhu ^{[1
]}

机构：

[1] Taiyuan Inst Technol, Dept Environm Engn, Taiyuan 030008, Peoples R China

来源：

2011 INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENTAL SCIENCE-ICEES 2011 | 2011年 / 11卷

关键词：

Coking wastewater; Sulphide; Cyanide; Poly-alumium-ferric-silicate; Potassium ferrate; Effective removal; COAGULATING BEHAVIORS; PREFORMED POLYMERS;

D O I：

10.1016/j.egypro.2011.10.896

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Targeted on the fact that at present the sulphide and cyanide in terminally purified coking wastewater are in excess of the state standard, a new method for effective removal of the sulphide and cyanide comes into being and reaches on ideal result, in which poly-aluminium-ferric-silicate (abbreviated PAFSi) and a little potassium ferrate (K2FeO4) are used respectively for coagulation and oxidation, and a small amount of calcium oxide(CaO) is added for precipitation. The removing rates of the sulphide and cyanide surpass 90% and 85% respectively. The high-efficient oxidation of potassium ferrate and high-efficient coagulation of poly-aluminium-ferric-silicate are analyzed in theory. The impacting factors on the removal of the sulphide and cyanide including pH, temperature and COD were studied experimentally, and therefore the conclusions are reached accordingly. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of the Organizers of 2011 International Conference on Energy and Environmental Science.

引用

页数：9

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