%0 Journal Article
%T Screening and Nitrogen Transformation Activity of Ammonia-Oxidizing Molds During Aerobic Chicken Manure Composting<br>鸡粪好氧堆肥氨氧化霉菌的筛选及氮转化能力的研究
%A WANG Li-qun
%A YU Qi-lin
%A HUANG Ming-yuan
%A <br>王立群
%A 喻其林
%A 黄明媛
%J 环境科学
%D 2010
%I 
%X In order to explicit the existence and nitrogen transformation activity of ammonia-oxidizing molds during aerobic chicken manure composting, the medium of ammonia-oxidizing molds was used to screen them, and correlation analysis between mycelium biomass and nitrogen transformation indexes was conducted, then high-effective ammonia-oxidizing strains were determined and added into aerobic compost. The results show that all tested strains are able to oxidize ammonium nitrogen to nitrite nitrogen and nitrate nitrogen, indicating that there are plenty of ammonia-oxidizing molds during aerobic chicken manure composting. Significantly positive correlations are detected between total contents of nitrite nitrogen and nitrate nitrogen, mycelium biomass and mycelium Kjeldahl nitrogen. When cultured in the medium of ammonia-oxidizing molds for 144 hours, two high-effective ammonia-oxidizing strains, named M25-22 (Penicillium sp.) and M40-4 (Aspergillus sp.), produce nitrate nitrogen by 1.1×10-3 mg·mL-1,1.5×10-3 mg·mL-1, respectively, and decrease ammonium nitrogen by approximately 0.3 mg·mL-1. Compared with the control treatment, the composting treatment with microbial agent M25-22 or M40-4 has lower ammonium nitrogen content, and higher contents of nitrate nitrogen and total nitrogen, indicating that they are of practical significance in reducing nitrogen loss during aerobic composting.
%K aerobic compost
%K nitrogen transformation
%K ammonium oxidation
%K nitrogen loss
%K Penicillium
%K Aspergillus<br>好氧堆肥
%K 氮转化
%K 氨氧化
%K 氮素损失
%K 青霉
%K 曲霉
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=892B76517156F719D1F086F48DD7BD37&yid=140ECF96957D60B2&vid=4AD960B5AD2D111A&iid=708DD6B15D2464E8&sid=3D9E1EDB972DB5BB&eid=3B3021FC0870F8D2&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=0