用生物滴滤床处理H_2S和挥发性有机物混合废气  

Treatment of Waste Gas Containing H2S and VOCs in Biological Trickling Filter

作　　者：沙昊雷[1] 陈建孟[1] 

机构地区：[1]浙江工业大学生物与环境工程学院,浙江杭州310032

出　　处：《化工环保》2007年第2期152-155,共4页Environmental Protection of Chemical Industry

基　　金：浙江省重大科技攻关项目(2003C13004)。

摘　　要：用生物滴滤床（BTF）处理某化工厂污水站的H2S和挥发性有机物（VOCs）混合废气，当废气中H2S质量浓度为120～400mg／m^3、VOCs质量浓度为115～340mg／m^时，运行稳定后H2S和VOCs的去除率为95％和85％。考察了影响BTF运行的循环水水质情况，试验结果表明：加入Na2CO3可使循环水pH控制在3～6；循环水中含盐量、Cl^-质量浓度和SO4^2-质量浓度分别为2200～3300，600～800，1200～1400mg／L，均未达到抑制微生物的水平。The waste gas containing H2 S and VOCs from the wastewater treatment plant of a chemical factory was treated in the biological trickling filter （BTF）. When the mass concentrations of H2 S and VOCs are 120-400 mg/m^3 and 115 -340 mg/m^3, their removal rates in steady operation are 95% and 85 % respectively. The quality of circulating water affecting the BTF operation was investigated. The test results show that the pH of circulating water can be controlled at 3 -6 with the addition of Na2CO3 and the mass concentrations of salts, Cl^- and SO4^2- are 2 200 -3 300, 600 -800, 1 200 - 1 400 mg/L, respectively. Each of them is below the level of microorganism suppression.

关 键 词：生物滴滤床 硫化氢 挥发性有机物 废气处理 

分 类 号：X701[环境科学与工程—环境工程]