Journal
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
Volume 48, Issue 1, Pages 47-65Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10408347.2017.1370670
Keywords
Advanced oxidation processes; assessment methods; chemical oxygen demand; organic pollution; water
Categories
Funding
- National Natural Science Foundation of China [51408264]
- Practice Innovation Program for University Graduate Students of Jiangsu Province [SJLX15_0564]
- Fundamental Research Funds for the Central Universities [JUSRP51512]
- State Key Laboratory of Pollution Control and Resource Reuse Foundation [PCRRF13022]
- Jiangnan University Science Foundation [JUSRP11522]
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Chemical oxygen demand (COD) is a critical analytical parameter for water quality assessment. COD represents the degree of organic pollution in water bodies. However, the standard analytical methods for COD are time-consuming and possess low oxidation efficiency, chloride interference, and severe secondary pollution. Works performed during the last two decades have resulted in several technologies, including modified standard methods (e.g., microwave-assisted method) and new technologies or methods (e.g., electro- and photo-oxidative methods based on advanced oxidation processes) that are less time-consuming, environment friendly, and more reliable. This review is devoted in analyzing the technical features of the principal methods described in the literature to compare their performances (i.e., measuring window, reliability, and robustness) and identify the advantages and disadvantages of each method.
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