Analytical Approaches for Determining Chemical Oxygen Demand in Water Bodies: A Review.
Crit Rev Anal Chem
; 48(1): 47-65, 2018 Jan 02.
Article
em En
| MEDLINE
| ID: mdl-28857621
ABSTRACT
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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Base de dados:
MEDLINE
Assunto principal:
Poluição Química da Água
/
Análise da Demanda Biológica de Oxigênio
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article