%0 Journal Article
%T Acidification Treatment of Woolscouring Effluent by Using Acidophilic thiobacillus<br>利用嗜酸性硫杆菌的生物产酸作用处理洗毛废水
%A HE Feng
%A ZHOU Li-xiang
%A WANG Dian-zhan
%A <br>何锋
%A 周立祥
%A 王电站
%J 环境科学
%D 2007
%I 
%X Suspended solids dispersed in woolscouring effluent (WSE) could be flocculated and precipitated in low pH. The aim of this study is to decrease pH in WSE, result in liquid-solid separation and remove COD of WSE through bio-acidification of Acidophilic thiobacillus. Acidophilic thiobacillus TS6 and sulfur powder as energy substance were inoculated and added into WSE for incubation in shaker at 180 r/min and 30 degrees C for 12 d. The results showed that suspended solids in WSE would flocculate and precipitate spontaneously and rapidly when pH in WSE drops to 3.00 due to bio-acidification. As a result, 91.4% of COD could be removed through consequent liquid-solid separation. Throughout the experiment, the control without inoculated with Acidophilic thiobacillus only led to 20% of COD removed. Furthermore, dewaterability of the sediment or dreg in bio-acidification treatment was enhanced markedly, as indicated by the decline of its specific resistance from more than 9.81 x 10(13) m x kg(-1) to 5.60 x 10(11) m x kg(-1). It seemed that bio-acidification approach might be an attractive treatment method for the organic wastewater of high wax content or high suspended solids content.
%K woolscouring effluent
%K bio-acidification
%K Acidophilic thiobacillus
%K COD removal<br>洗毛废水
%K 生物产酸
%K 嗜酸性硫杆菌
%K COD去除
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=BA4E9D39D7A7460F95517FC4E0B0D1EC&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=0B39A22176CE99FB&sid=9C82B18080268586&eid=B54EB62E9D3FF31E&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=19