生物活性炭内吸附与生物降解协同去除有机污染物

本研究建立了一个确定BAC内2种机理去除有机物分配比例的试验方法.该方法以BAC进出水中溶解性有机碳（DOC）与可生物降解有机碳（BDOC）浓度变化作为评价参数,并利用此方法确定了臭氧投加量对2种去除机理的影响.臭氧化可以使BDOC浓度增加,臭氧投量为2～8mg/L时,BDOC增加0.12～0.54mg/L;BAC过滤使出水BDOC浓度降低为0.23～0.31mg/L.随着臭氧投量增加（2～8mg/L）,在BAC内生物降解作用去除有机物比例从46%增加到89%.

Removal of Organic Pollutants by Adsorption Cooperated with Biodegradation in BAC

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.