Removal of Organic Pollutants by Adsorption Cooperated with Biodegradation in BAC
生物活性炭内吸附与生物降解协同去除有机污染物

O3-BAC process was widely applied in the waterworks because the technology can remove organic pollutants in water effectively by adsorption cooperated with biodegradation in BAC. The determination measure for distribution of NOM removal by two mechanisms in BAC was established. In this method, to use the change in DOC and BDOC of inflow and effluent to evaluate the distribution and to determinate the effect of the different ozone doses on the adsorption and biodegradation in BAC. The ozonation increased the concentration of BDOC in 0.12~0.54mg/L with ozone dose of 2~8mg/L and BAC filtration decreased concentration of BDOC to 0.23~0.31mg/L. Also, the biodegradation distribution to remove the organic pollutants got increased from 46% to 89% with ozone dose of 2~8mg/L.