Micropollutant Degradation in Wastewater Treatment: Experimental Parameter Estimation for an Extended Biokinetic Model

摘要

An experimental approach for estimating the parameters for an extended biokinetic model (Peev et al. 2004) of micropollutant removal in wastewater treatment is presented and exemplarily performed with 2,6-naphthalene disulfonate (2,6-NDSA) and benzothiazole sulfonate (BTSA) as model compounds. In particular, a set of short-term batch experiments, consisting of a micropollutant degradation experiment and a biomass decay experiment, were carried out. Both experiments comprise only the chemical analysis of micropollutant substrate concentrations over time. The experimental data were used to determine the biokinetic parameters by applying and verifying the methodology introduced in a previousrnpublication (Schoenerklee and Peev, 2008). The results suggest that the model assumption of competent heterotrophic biomass utilizing the target micropollutant as growth substrate, gives a satisfactory description of the micropollutant biodegradation process by mixed bacterial cultures.