Wastewater Characterization: Chemical Oxygen Demand or Total Organic Carbon Content Measurement?

ABSTRACT: The long time (2 h) required for measurement, expensive chemicals (Ag₂SO₄), and toxic reagents (K₂Cr₂O₇, HgSO₄) limit the application of the standard method for measuring the oxygen equivalent of organic content in wastewater (chemical oxygen demand, COD). In recent years, the COD has increasingly been replaced by the total organic carbon (TOC) parameter. Since the limit values of the pollution levels are usually given in terms of the COD, efforts are being made to find the correlation between these parameters. Several papers have published correlation analyses of COD and TOC for industrial and municipal wastewater, but the relationship has not been discussed for individual chemicals. Here, this relationship was investigated

SUBMITTER: Wojnarovits L 

PROVIDER: S-EPMC10818771 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature