Determination of Chemical Oxygen Demand for Saline Wastewater

摘要：

The interference of the chloride ion (Cl-) on the standard method for chemical oxygen demand (COD) determination proposed by American Publican Health Association (APHA) cannot be ignored, especially for samples with high salinity. Increasing the ratio of HgSO4:Cl-and adding some masking agents such as AgNO3, Cr3+, Al3+are all good modifications of the standard method to eliminate the Cl-interference. Correction method can also be used to calculate the real COD value by analyzing the interfering COD value and the measured COD value. In addition, new techniques such as chemiluminescence (CL) system, chemiluminescence combined with flow-injection method, and new assisted digestion methods can tolerate Cl-at a certain extent and save time simultaneously.

作者: Xiangjuan Ma Yang Gao

作者单位: School of Environmental Science and Engineering Zhejiang Gongshang University Hangzhou, China 310012

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）