广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2012年
21期
38-40
,共3页
微生物絮凝剂%发酵条件%絮凝条件
微生物絮凝劑%髮酵條件%絮凝條件
미생물서응제%발효조건%서응조건
microbial flocculant%fermentation condition%flocculation condition
将从活性污泥中筛出的高效微生物絮凝菌复合培养产絮凝剂。通过单因子实验获得复合菌最适发酵条件为淀粉10 g/L,尿素0.5 g/L,KH2PO4 2 g/L,K2HPO40.5 g/L,Fe2（SO4）30.2 g/L,pH 7.0～7.2,T=28℃、160 r/min培养24 h;形成的发酵液应用于高岭土废水絮凝实验中,絮凝剂添加1%,CaCl2（5%）添加1%,慢搅15 min,静置15 min后测得的絮凝效果最佳。复合菌经发酵及絮凝条件优化后,絮凝率可达97.07%,絮凝效果与常用的PAM效果相当,且更经济。
將從活性汙泥中篩齣的高效微生物絮凝菌複閤培養產絮凝劑。通過單因子實驗穫得複閤菌最適髮酵條件為澱粉10 g/L,尿素0.5 g/L,KH2PO4 2 g/L,K2HPO40.5 g/L,Fe2（SO4）30.2 g/L,pH 7.0～7.2,T=28℃、160 r/min培養24 h;形成的髮酵液應用于高嶺土廢水絮凝實驗中,絮凝劑添加1%,CaCl2（5%）添加1%,慢攪15 min,靜置15 min後測得的絮凝效果最佳。複閤菌經髮酵及絮凝條件優化後,絮凝率可達97.07%,絮凝效果與常用的PAM效果相噹,且更經濟。
장종활성오니중사출적고효미생물서응균복합배양산서응제。통과단인자실험획득복합균최괄발효조건위정분10 g/L,뇨소0.5 g/L,KH2PO4 2 g/L,K2HPO40.5 g/L,Fe2（SO4）30.2 g/L,pH 7.0～7.2,T=28℃、160 r/min배양24 h;형성적발효액응용우고령토폐수서응실험중,서응제첨가1%,CaCl2（5%）첨가1%,만교15 min,정치15 min후측득적서응효과최가。복합균경발효급서응조건우화후,서응솔가체97.07%,서응효과여상용적PAM효과상당,차경경제。
All strains isolated from activated sludge were mixed and cultivated to produce microbial flocculant.Through single factor experiments,the optimum fermentation conditions were as follows: starch 10 g/L,urea 0.5 g/L,KH2PO4 2 g/L,K2HPO4 0.5 g/L,Fe2(SO4)3 0.2 g/L,pH 7.0~7.2,28 ℃,160 r/min,and culture time 24 h.The best flocculation results for kaolin wastewater were obtained when microbial flocculant was 1%(φ),5%(ω) CaCl2 solution dosage was 1%(φ),slow stiring 15 min,and stewing 15 min.Under such optimized conditions,the flocculation rate was up to 97.07%,and the flocculent effect was comparable of PAM flocculant,but more economy.
