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《Journal of Safety and Environment》 2007-04
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Full-scale test on bio-treatment of high concentration odor from wastewater treatment plant

YU Min1,TAO Jia2,WANG Jia-de2(1 Zhejiang Medicine Co.Ltd.,Xinchang Pharmaceutical Factory,Xinchang 312500,Zhejiang,China;2 College of Biological and Environmental Engineering,Zhejiang University of Technology,Hangzhou 310032,China)  
The paper is aimed to present its success in study and application of biological filters to solve the polluted-air emission problems concerning VOCs and odor over the past decades.A full-scale bio-trickling filter developed by us has already been assembled in a pharmaceutical works for treating high concentration odor,which proves advantageous both in treating efficiency and in saving expenses of wastewater processing in comparison with the other traditional methods,particularly when the pollutant concentration is lower but volume is large.Though it is still necessary to continue monitoring the performance of the reactor over a period of time,the paper has now already covered an account of 50 days' experimental results.The system can finish its starting up in 8 days on the condition that the H2S concentration ranges from 335.26 to 486.36 mg/m3.At the same time,the removing efficiency can be made to keep on within the range of 86.53%-94.79%(90.60% in average)with an average empty bed gas residence time of 12.0 s,within the range of H2S inlet concentration of 394.26-776.52 mg/m3(524.36 mg/m3 on average),equivalent to a volumetric H2S elimination capacity of 59.14-122.63 g/(m3·h)and 81.47 g/(m3·h).In addition,the toluene and tetrahydrofuran removing efficiency has been improved to 66.84% and 59.89% respectively with the toluene-eliminating capacity and tetrahydrofuran being 11.25 g/(m3·h)and 22.46 g/(m3·h).And,finally,technical and economic cost analysis and calculation indicate that it would only take $133 200 to build a single filter per 1 000 m3 odor and $5.23 per kg of H2S removal for the BTF system.
【Fund】: 浙江省重大科技攻关项目(2003C13004)
【CateGory Index】: X701
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