第 44 卷第 1 期Vol. 44 No. 1
2014 年 2 月Feb 2014

所属栏目:分析与测试

高氯低COD废水COD测定方法研究
黄荣富1,周 觅1,2*,俞建军1,胡迪飞1,张明慧1,夏纯洁1,2 (1. 浙江天蓝环保技术股份有限公司,浙江 杭州 311202; 2. 浙江省工业锅炉炉窑烟气污染控制工程技术研究中心,浙江 杭州 311202)
摘 要:高浓度的氯离子对废水COD的测定结果具有严重的干扰。采用稀释法、硝酸银沉淀法、硫酸汞络合法、密封消解法,对高氯低COD水样的COD测定方法进行了实验研究,从方法的原理、测定结果及适用范围等方面,比较了上述4种测定方法的优缺点。结果表明,在测定高氯低COD废水COD时,密封消解法是一种准确度高、快速简便且适用范围广的方法。
关键词:废水;高氯;COD
中图分类号:X832  文献标识码:B  文章编号:1009-9212(2014)01-0061-03
Study on the Determination of COD in Low COD Wastewater with High Chlorine
HUANG Rong-fu1,ZHOU Mi1,2*,YU Jian-jun1,HU Di-fei1,ZHANG Ming-hui1,XIA Chun-jie1,2 (1. Zhejiang Tianlan Environmental Protection Technology Co.,Ltd.,Hangzhou 311202,China;2. Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control,Hangzhou 311202,China)
Abstract:The high concentration of chloride ion causes serious interference to the determination of COD in wastewater. Analysis of COD in low COD wastewater with high chlorine was studied. Methods of dilution,silver nitrate precipitation,mercury sulfate complexation and sealed digestion were evaluated and compared. The results showed that the sealed digestion method was more accurate,simple and widely applied in the determination of COD in low COD wastewater with high chlorine.
Key words:wastewater;high chlorine;COD
作者简介:黄荣富(1965-),男,浙江杭州人,工程师,研究方向:大气污染控制。(E-mail:hrongfu@sina.com)
联 系 人:周 觅,工程师,研究方向:大气污染控制。(E-mail:mizhou620@aliyun.com)
收稿日期:2014-01-22