Chen Dong-zhi, Miao Xiao-ping, Ouyang Du-juan, Ye Jie-xu, Chen Jian-meng
Huan Jing Ke Xue. 2015 Sep;36(9):3168-74.
An experimental investigation on purification of waste gas contaminated with a mixture of dichloromethane (DCM) and dichloroethane(1,2-DCA) was conducted in a biotrickling filter (BTF) inoculated with activated sludge of pharmaceuticals industry. Stable removal efficiency(RE) above 80% for DCM and above 75% for 1,2-DCA were achieved after 35 days, indicating that biofilm was developed. The best elimination capacity (EC) of DCM and 1,2-DCA were 13 g.(m3.h)-1 and 10 g.(m3.h)-1 respectively. And there was a linear relationship between the production of CO2 and mixed gas EC, the maximum mineralization rate of mixed gas stabled at 61. 2%. The interaction test indicated that DCM and 1,2-DCA would inhibit with each other. The changing of biomass of BTF during the operation process was also been studied.
在接种制药行业活性污泥的生物滴滤塔（BTF）中，对含有二氯甲烷（DCM）和二氯乙烷（1,2-DCA）混合物的废气净化进行了实验研究。35天后，DCM的稳定去除率（RE）达到80%以上，1,2-DCA的稳定去除率达到75%以上，表明生物膜已形成。DCM和1,2-DCA的最佳去除能力（EC）分别为13 g·(m³·h)⁻¹和10 g·(m³·h)⁻¹。并且CO₂产量与混合气体EC之间存在线性关系，混合气体的最大矿化率稳定在61.2%。相互作用试验表明，DCM和1,2-DCA会相互抑制。同时还研究了BTF在运行过程中生物量的变化。
