%0 Journal Article
%T Bulking Controls Induced by Nitrogen Insufficiency in Yeast System<br>酵母菌处理系统中氮缺乏引起的污泥膨胀控制
%A Han Yun
%A Yang Qingxiang
%A Yang Min
%A Zhang Yu
%A Zheng Shaokui
%A <br>韩云
%A 杨清香
%A 杨敏
%A 张昱
%A 郑少奎
%J 环境科学
%D 2003
%I 
%X The effect of nitrogen addition to salad oil manufacturing wastewater system was studied. The results of batch experiments demonstrated: 1. addition of nitrogen was helpful to improve oil removal, and the oil removal rate was above 90% when COD/N value was between 50/1 and 20/1; 2. addition of nitrogen improved the sludge settleability, which was much better under COD/N value of 50/1 and 20/1. In the continuous experiment, the value of slude volume index(SVI) was between 100 and 200, and the removal rates of oil and COD were above 95% and 90%, respectively when the COD/N ratio was kept at value of 20/1. Nitrogen addition to salad oil manufacturing wastewater system is an effective method for preventing or controlling sludge bulking.
%K yeast
%K salad oil manufacturing wastewater
%K COD/N
%K sludge bulking<br>酵母菌
%K 色拉油加工废水
%K COD/N
%K 污泥膨胀
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=3E02D65C67389CEF&yid=D43C4A19B2EE3C0A&vid=B91E8C6D6FE990DB&iid=E158A972A605785F&sid=68D88C2FCF9C3098&eid=AA76E167F386B6B3&journal_id=0250-3301&journal_name=环境科学&referenced_num=6&reference_num=12