%0 Journal Article
%T Treatment of 2-phenylamino-3-methyl-6-di-n-butylaminofluoran production effluent by combination of biological treatments and Fenton's oxidation<br>Treatment of 2-phenylamino-3-methyl-6-di-n-butylaminofluoran production effluent by combination of biological treatments and Fenton’s oxidation
%A DING Wei
%A GAO Ying-xin
%A YANG Min
%A DING Ran
%A ZHANG Yu
%A <br>DING Wei
%A GAO Ying-xin
%A YANG Min
%A DING Ran
%A ZHANG Yu
%J 环境科学学报(英文版)
%D 2007
%I 
%X High strength refractory organic stream is produced during the production of 2-phenylamino-3-methyl-6-di-n-butylaminofluoran (One Dye Black 2,abbr.ODB 2),a novel heat-sensitive material with a promising market.In this study,a combination of acidification- precipitation,primary biological treatment,Fenton's oxidation and another biological treatment was successfully used for the removal of COD from 18000-25000 mg/L to below 200 mg/L from the ODB 2 production wastewater in a pilot experiment.A COD removal of 70%-80% was achieved by acidification-precipitation under a pH of 2.5-3.0.The first step biodegradation permitted an average COD removal of 70% under an hydraulic residence time (HRT) of 30 h.By batch tests,the optimum conditions of Fenton's oxidation were acquired as:Fe~(2 ) dose 6.0 mmol/L;H_2O_2 dose 3000 mg/L;and reaction time 6 h.The second step biological treatment could ensure an effluent COD below 200 mg/L under an HRT of 10 h following the Fenton's treatment.
%K 2-phenylamino-3-methyl-6-di-n-butylaminofluoran
%K ODB 2 wastewater
%K Fenton's oxidation
%K activated sludge
%K heatsensitive material<br>2-phenylamino-3-methyl-6-di-n-butylaminofluoran
%K ODB
%K 2
%K wastewater
%K Fenton’s
%K oxidation
%K activated
%K sludge
%K heatsensitive
%K material
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=DB766860D2DF6EADF019C87607167496&yid=A732AF04DDA03BB3&vid=2A8D03AD8076A2E3&iid=F3090AE9B60B7ED1&sid=6EEBEF38C7DFC97E&eid=7CCBDF94263DBB99&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=0