%0 Journal Article
%T Experimental study on performance of ozonation disintegration for excess sludge reduction<br>臭氧处理剩余污泥的减量化实验研究
%A He Chuyin
%A Jin Hui
%A Bu Chunwei
%A Wen Zicheng
%A Li Yun
%A <br>何楚茵
%A 金辉
%A 卜淳炜
%A 温子成
%A 李赟
%J 环境工程学报
%D 2012
%I 
%X Continuous experiments in lab scale process were carried out to study the effect of excess sludge ozonation and reduce the cost of sludge reduction. During the treatment process, various parameters characterizing sludge were investigated. A substantial reduction in the volume of sludge was observed. After ozone consumption of 40 minutes, the removal efficiencies of total solid(TS) and volatile total solid (VTS) increased to 57.33% and 72.76%, respectively. Soluble chemical oxygen demand (SCOD) proliferated as a consequence of extending the ozone feeding time in the first 30 minutes, and rose to a final concentration of 6 298.32 mg/L from the original 3 501.24 mg/L, demonstrating a growth rate of 79.88%. A steady decline both in 30 min settled sludge volume (SV30) and water content of sludge cake was observed through ozonation, which suggested that ozonation could improve both of the sedimentation and dewatering performances. These facts suggested a remarkable effect of the sludge reduction by ozonation.
%K sludge
%K reduction
%K ozone
%K total solid concentration
%K volatile total solid concentration<br>剩余污泥
%K 减量化
%K 臭氧
%K 总固体浓度
%K 挥发性总固体浓度
%K 溶解性COD
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=37D4B66310E46B8391EBB47DF75A58F3&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=708DD6B15D2464E8&sid=C1754894D93F8EAF&eid=BC8B02A90D5C9E23&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=31