Insights into antimicrobial agent sulfacetamide transformation during chlorination disinfection process in aquaculture water.

ABSTRACT: Antibiotic addition and chlorination are two common processes in fishery culture. Antibiotic residues not only pollute aquaculture water, but are also one of the potential precursors of disinfection by-products (DBPs) during chlorination. The degradation kinetics, products identification and reaction mechanism of sulfacetamide (SFA), a new sulfonamides antibiotics, and potential formation of haloacetic acids (HAAs) in chlorination were explored. The results showed that the degradation of SFA followed pseudo first-order kinetic model, and chlorinating agent dose, pH of water, water temperature, NH₄ ⁺, HCO₃ ^- and humic acid (HA) had various effects on the degradation of SFA and the yields of HAAs. The presence of Br^- accelerated both the

SUBMITTER: Guo Y 

PROVIDER: S-EPMC8697773 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature