摘要
生物滤池是去除有机固体废弃物处理与处置过程中所产生臭气的重要手段。相关研究表明,生物滤池对NH3、H2S、VOCs的最大去除率分别在(56%～100%)、(67%～100%)、(70%～99%)范围内;对NH3、VOCs的去除分别以滤料的吸附/吸收作用、生物降解作用为主导;在一定范围内,对臭气的去除率随着滤料含水率的增加而增大;延长空床停留时间(EBRT)可增大对NH3、H2S特别是疏水性VOCs的去除率。在实际应用中,建议采用进气预喷淋加湿和填料喷淋加湿相结合的措施并使用复合滤料,同时应针对不同生物滤池选取最佳生物量及压降控制方法,防止破坏滤池的运行环境。
Biofilter is one of the important techniques that can reduce odor emissions from the process of organic waste treatment and disposal. Related research showed that the maximum removal rates of NH3, HES and VOCs were 56% to 100% , 67% to 100% and 70% to 99% respectively. Adsorption/ absorption and biodegradation were dominant in the removal of NH3 and VOCs respectively. Within a cer- tain range, odor removal efficiency increased with increase in the moisture content of packing material. Increasing empty bed residence time （EBRT） could improve the removal efficiencies of NH3, H2S, and especially hydrophobic VOCs. In the biofilter＇ s applications, the use of composite packing materials and the combined technologies of odor prehumidification and packing material humidification are suggested. At the same time, the optimum biomass and pressure drop control technique should be selected according to biofilter condition in order to prevent damage to its operational environment.
出处
《中国给水排水》
CAS
CSCD
北大核心
2012年第23期138-142,共5页
China Water & Wastewater
基金
国家环境保护公益性行业科研专项(201209022)
国家高技术研究发展计划(863)项目(2009AA064703)
