规模化畜禽养殖业的快速发展给环境带来了前所未有的压力，而畜禽臭气排放导致的社会问题也成为行业发展的严重阻碍。生物膜法作为较经济高效的畜禽臭气处理手段，相关的研究表明其受到了硫化氢等臭气成分气液传质速率低下、微生物降解动力学不足及稳定性不高的多重限制。臭氧高级氧化法可与硫化氢实现气相快速反应而脱离气液传质限制，且或可促进生物膜活性及有效控制生物量，从而增强反应动力学并维持较稳定的降解，然而相关研究未见报道。本研究拟探索臭氧协同生物膜法对畜禽主要臭气成分氨气(-NH3类)、硫化氢(-SH类)及对甲基苯酚(苯酚类)的去除机理，研究臭氧与生物膜法协同机制及臭氧对生物膜厚度、活性及生物量的影响，考察臭气成分微观及宏观降解动力学，并应用稳定同位素示踪法研究氨气中氮的降解规律和最终产物，具有良好的创新意义和应用前景。

The rapid expand of the intensive livestock production industry had given a big challenge to the local and global environment, specifically the livestock odor had increasingly caused severe nuisance to the local community, thereby hinder the further expand of the industry. Biofilm process has usually been served as a cost-effective technique for livestock odorants reduction, but recent relevant studies indicated the limitations of this technique existed for sulfur compounds including hydrogen sulfide, including the following: the relative low partitioning into liquid phase and thereby low mass transfer rate, low microbiology kinetics and low removal stability in the long run. Ozone as a method of advanced oxidation process, can react directly with hydrogen sulfide in the gas phase and thus avoid the mass transfer into liquid, and possibly can also increase the microbiological activities while controlling the biomass, thereby improve the microbiological kinetics and removal stability of livestock odorants, when added to the biofilm process. However, this have never been explored so far. This study will explore the fascinating ozone-combined biofilm process for livestock odorants reduction with focus on the removal mechanism of ammonia, hydrogen sulfide and 4-methylphenol. The work will also look into the combined removal of these odorants by ozone and biofilm process, and the influence of ozone on biofilm structure, activities and biomass. This work will try to establish and validate the micro- and macro- kinetic models, and explore the fate the ammonia and nitrogen element, by using stable isotope techniques. Therefore, this study is an innovation of technique mechanisms and good application prospect.