Electrocoagulation and electroflotation of restaurant wastewater

被引：237

作者：

Chen, GH ^{[1
]}

Chen, XM ^{[1
]}

Yue, PL ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL ENGINEERING | 2000年 / 126卷 / 09期

关键词：

D O I：

10.1061/(ASCE)0733-9372(2000)126:9(858)

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A combined electrocoagulation and electroflotation process was applied to restaurant wastewater treatment. The effects of operational variables on performance were examined. The electrocoagulation and electroflotation charge loadings are the most important variables. In wide ranges, initial pH and conductivity have no remarkable effects on pollutant removal. However, when pH is <4, suspended solids removal decreases sharply. The proposed technique has two significant advantages: shorter retention time and lower water content in the sludge produced. The power requirement is only 0.5 kW . h/m(3) under a set of typical operating conditions. The amount of dried sludge is 0.20-0.37 kg/kg chemical oxygen demand removed.

引用

页码：858 / 863

页数：6

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