|本期目录/Table of Contents|

[1]关洪亮,张璐,祝雅杰,等.电镀污泥中铬的去除工艺优化[J].武汉工程大学学报,2013,(09):44-47.[doi:103969/jissn16742869201309009]
　GUAN Hong\|liang,ZHANG Lu,ZHU Ya\|jie,et al.Technical investigation of removing chromium in electroplating sludge[J].Journal of Wuhan Institute of Technology,2013,(09):44-47.[doi:103969/jissn16742869201309009]
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电镀污泥中铬的去除工艺优化(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2013年09期
页码:
44-47
栏目:
资源与土木工程
出版日期:
2013-10-10

文章信息/Info

Title:
Technical investigation of removing chromium in electroplating sludge
文章编号:
16742869(2013)09004404
作者:
关洪亮; 张璐; 祝雅杰; 王杏林; 余训民
武汉工程大学环境与城市建设学院,湖北 武汉 430074
Author(s):
GUAN Hong\|liang;  ZHANG Lu;  ZHU Ya\|jie;  WANG Xin\|lin;  YU Xun\|min
College of Environment and Civil Engineering，Wuhan Institute of Technology，Wuhan 430074，China
关键词:
含铬污泥; 硫酸; 酸浸; 正交试验
Keywords:
chromium contained sludge;  sulphuric acid;  acid leaching;  orthogonal experiments
分类号:
X703
DOI:
103969/jissn16742869201309009
文献标志码:
A
摘要:
以某公司的电镀污泥为研究对象，针对污泥中含铬量高的特点，提出了去除铬的处理工艺.根据铬在污泥中存在的状态，采用硫酸作为浸出试剂.通过正交试验，考察了硫酸浓度、浸出时间、反应温度、搅拌速率等对铬去除率的影响，同时也对去除机理进行了探讨.X射线光电子能谱（XPS）显示，电镀污泥中铬的质量分数为22.05%；取此种污泥2 g，用10 mol/L的硫酸溶解，在固液比（质量分数）为15∶1，搅拌速率为800 r/m，待反应90 min后，可使污泥中各种形态的铬溶解于硫酸中，从而去除污泥中的铬.此种方法操作简单可行，污泥中铬的去除率可达90%以上.浸出的铬可进一步综合利用，剩余污泥也可安全填埋，有利于减少此类污泥对环境甚至生态系统的危害.
Abstract:
Chromium contained electroplating sludge from a factory was studied, and a treatment technique for dealing with the chromium contained electroplating sludge was proposed according to the high content of chromium in the sludge. Sulphuric acid was used as leaching reagent due to the existing state of chromium. Concentration of sulphuric acid, leaching time and temperature, stirring speed were examined on the removing effect of chromium by orthogonal experiment, meanwhile the removing mechanism was also discussed. It is found by X\|ray Photoelectron Spectroscopy (XPS) that when the relative content of chromium is 22.05%, 2 g such sludge is taken and dissolved in 8 mol/L sulphuric acid, after reaction for 40min at stirring speed 600 r/m and the ratio of solid to liquid (mass fraction) at 15∶1, all valence states of chromium are dissolved in sulphuric acid, thus chromium in the sludge is removed. The proposed method is simple and available for practical operation. The removing rate for chromium is up to 90%. The leached chromium can be recycled and the rest sludge can be buried safely, thus the contamination of such sludge to the environment and ecosystem can be greatly reduced.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20130725作者简介：关洪亮（1974\|），男，湖北武汉人，讲师.研究方向：水污染处理.
更新日期/Last Update: 2013-10-11