环境工程学报2011，Vol.5Issue(4)：851-855,5.
不同来源废水COD、TOC与Cl-的关系
Correlations between chlorine ion, COD and TOC in wastewaters from different sources
张秀霞 1秦丽姣 1李玉国 2徐娜娜 1李秀玲 1赵朝成1
作者信息
- 1. 中国石油大学(华东)环境科学与工程系,青岛,266555
- 2. 东营市环境监测站,东营,257000
- 折叠
摘要
Abstract
The wastewaters from different sources, such as high salinity chemical wastewater (A), tide-affected river water( B), municipal sewage (C) and oil production wastewater were monitored for a period of 15 days, COD, TOC and Cl- concentrations were determined and the relationship between them was investigated.The COD was measured by dichromate method, chlorine emendation method and potassium iodide alkaline permanganate method, respectively. The results showed that, there was a large difference among the Cl- concentrations of the samples, which was in order of A (21 749 mg/L) ＞ D (7 013 mg/L) ＞ B( 1 807 mg/L) ＞ C(977 mg/L). During the 15 days monitoring periods, the TOC values of high salinity chemical wastewater (A) fluctuated widely while the TOC of the other three kind wastewater remained stable, and there was no direct correlations between TOC and chloride ion concentration. The COD values of all four samples showed a significant positive relation with the C1- concentration. It could be concluded that potassium iodide alkaline permanganate method was more suitable for determining COD in wastewater A and D, and chlorine emendation method was suitable for determining COD in wastewater C and D. As water in tidal river fluctuated widely, there was no significant difference among the COD values measured by three methods according to the Cl- concentration. TOC was more suitable for characterizing the organic pollution degree of water quality.关键词
高氯废水/COD/重铬酸钾法/氯气校正法/碘化钾碱性高锰酸钾法Key words
high chlorine wastewater/ COD/ potassium dichromate method/ chlorine gas calibration method/ KI alkaline potassium permanganate method分类
资源环境引用本文复制引用
张秀霞,秦丽姣,李玉国,徐娜娜,李秀玲,赵朝成..不同来源废水COD、TOC与Cl-的关系[J].环境工程学报,2011,5(4):851-855,5.
