生物质气化洗焦废水的混凝吸附对微生物降解的影响  

Study on Microbial Degradation of Biomass Gasification Wastewater after Coagulation and Adsorption

作　　者：张文华[1] 田沈[1] 钱城[1] 曹亚莉 吴创之[2] 袁振宏[2] 杨秀山[1] 

机构地区：[1]首都师范大学生物系 [2]中国科学院广州能源所,广州510070

出　　处：《首都师范大学学报（自然科学版）》2002年第4期64-66,78,共4页Journal of Capital Normal University：Natural Science Edition

基　　金：国家十五科技攻关项目 (2002BA40302 ) ;北京市自然科学基金项目 (5022003 ) .

摘　　要：为了提高生物质气化洗焦废水的处理效果 ,利用普通混凝剂、电厂粉煤灰和颗粒活性炭 (GAC)对生物质气化洗焦废水进行混凝沉降试验和静态吸附试验 .经混凝沉淀、吸附后的生物质气化洗焦废水接种微生物菌种进行微生物降解试验 .混凝剂明矾和Al2 (SO4 ) 3对生物质气化洗焦废水的浊度和悬浮物可有效去除 ,但COD去除率较低 ,色度去除率极低 ;电厂粉煤灰对生物质气化洗焦废水的浊度、色度、COD去除率很低 ,电厂粉煤灰与明矾或Al2 (SO4 ) 3共用使用可明显提高对浊度、COD的去除率 ,且混凝沉降速度明显提高 ,絮凝物紧密稳定 .经混凝吸附处理的生物质气化洗焦废水 ,微生物降解速度和降解率均显著提高 .Wastewater produced in the process of biomass gasification was treated by several coagulators,e.g.ash,and granular activated carbon(GAC) in order to increase the treatment efficiency of biomass gasification wastewater.After coagulation and adsorption,the microbial degradation of biomass gasification wastewater using co\|cultures was studies.Coagulators KAl(SO\-4)\-2.12H\-2O and Al\-2(SO\-4)\-3 remove turbidity well,but but the COD reduction was low,and decolorization was insignificant.GCA can removes COD and color well.After coagulation and adsorption,the microbial degradation of biomass gasification wastewater COD is reasonably higher that that without pretreatment.

关 键 词：生物质气化洗焦废水 混凝吸附 微生物降解 生物能 废水处理 混凝沉降 

分 类 号：X784.03[环境科学与工程—环境工程] X172