试验研究

印刷电路板显影废水处理研究

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  • 同济大学化学系, 上海 200433
鲍旭平( 1981- ) , 2005 年毕业于同济大学, 硕士研究生。电话: 0577- 88997770, E-mail: dicui@126.com。

收稿日期: 2005-06-16

  网络出版日期: 2010-10-01

Study on the treatment of development wastewater from PCB production

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  • Chemistry Department, Tongji University, Shanghai 200433, China

Received date: 2005-06-16

  Online published: 2010-10-01

摘要

印刷电路板生产中产生的显影废水是一种高有机物含量、成分复杂、难以生化降解的废水。作者采用酸化破乳—铁炭微电解—中和沉淀—SBR组合工艺处理该废水,并通过实验确定最佳工艺参数:酸化破乳pH为3~4,破乳后出水进入铁炭微电解柱,V(铁)∶V(炭)=1∶1,反应时间为45 min,出水加石灰乳调节pH为7~8,中和沉淀;SBR每12h为一个周期,最佳反应时间为8h。经组合工艺处理后,原废水CODCr由原来的11 000mg/L降至400 mg/L左右,去除率达到96%左右。

本文引用格式

鲍旭平, 李义久 . 印刷电路板显影废水处理研究[J]. 工业水处理, 2005 , 25(11) : 22 -24 . DOI: 10.11894/1005-829x.2005.25(11).22

Abstract

The development wastewater from PCB production is complex and difficult to be degraded and contains organic substances with high concentration. The combined processing method of acidified demulsification - micro electrolysis of iron and carbon - neutralized sedimentation - SBR is used for treating this kind of wastewater. And the optimal technological conditions are ascertained by experiments. The pH value of acidified demulsification is 3 - 4; VFe ∶VC is 1 ∶1 in the Fe /C column, and the reaction time of micro electrolysis is 45 min; then the effluent is neutralized by Ca(OH)2 solution to pH 7 - 8; in SBR reaction, 12 h per cycle and the optimal reaction time is 8 h. After the whole treatment, the CODCr of the inlet water is reduced from 11 000 mg/L to 400 mg/L and the total CODCr removal rate reaches about 96%.

参考文献

[1] 王方. 印刷电路板行业废水回用处理系统的处理工艺[J] . 工业水处理, 2004, 24(3) : 73-76
[2] 马前, 等. 光致抗蚀剂乳化废水中有机物GC/MS 分析[J] . 四川环境, 2002, 21(3) : 48-50
[3] 于春泽. PCB 废水(液) 处理技术装备现状与展望[J] . 印制电路信息, 2001, (10) : 39-43

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