分析与监测

城市污水处理厂对CODCr测定的改进

展开
  • 昆明市第一污水处理厂化验室, 云南 昆明 650034;
匡云霞(1965- ),1986年毕业于江西景德镇陶瓷学院化学专业,工程师.联系电话:13708722792,0871-4646680.

收稿日期: 2004-07-19

  修回日期: 2004-07-19

  网络出版日期: 2010-10-01

Improvement in the determination of CODCr in municipal wastewater treatment plants

Expand
  • Laboratory of Kunming No. 1 Wastewater Treatment Plant, Kunming 650034, China

Received date: 2004-07-19

  Revised date: 2004-07-19

  Online published: 2010-10-01

摘要

介绍了污水处理厂化验室用重铬酸钾法同时测定污水处理前和处理后的CODCr浓度时,重铬酸钾溶液的浓度改为0.0500mol/L,硫酸亚铁铵溶液的浓度改为0.02mol/L,不但不会影响测定结果,还能有效地降低化验成本,节约工作时间,同时减少化验室废水对环境造成的二次污染。

本文引用格式

匡云霞 . 城市污水处理厂对CODCr测定的改进[J]. 工业水处理, 2005 , 25(1) : 52 -53 . DOI: 10.11894/1005-829x.2005.25(1).51

Abstract

It is introduced that when the CODCr concentrations both before and after the treatment are determined by using potassium dichromate method in the wastewater treatment plant laboratory, the concentration of potassium dichromate solution is adjusted to 0.050 0 mol/L and the concentration of ammonium irons(Ⅱ) sulfate hexahydrate solution to 0.02 mol/L. This will not influence the determination result, but can reduce the essay cost, save working hours and reduce the secondary environmental pollution caused by the wastewater from the laboratory.

参考文献

[1] 水和废水监测分析方法编委会.水和废水监测分析方法[M].第4版.北京:中国环境科学出版社,2002.58-62.
[2] GB 11914-1989,水质-化学需氧量的测定,重铬酸钾法[S].
[3] CJJ60-1994,城市污水处理厂运行、维护及其它安全技术规程[S].

文章导航

/