Abstract:
Abstract Purpose Problems associated with Organochlorine pesticide (OCP)-contaminated
soils have received wide attention. To understand the anaerobic biodegradation process
constraints, innovative mathematical analysis methods are effective. Materials and methods
Response surface methodology (RSM) and Tenax TA extraction method combined with the
first-three-compartment model were employed to systematically investigate the role of nitrate
concentration and bioaccessibility enhancer (methyl-β-cyclodextrin, MCD) in the anaerobic
biodegradation of OCPs in contaminated soil. Results and discussion The sole addition of
either KNO 3 or MCD could facilitate the anaerobic biodegradation of OCPs. The highest
biodegradation for total OCPs, hexachlorocyclohexanes, endosulfans, and chlordanes were
71.6, 82.1, 68.3, and 55.6%, respectively, when 20 mM KNO 3 and 3.0%(w/w) MCD were …