混凝沉淀法深度处理酒精废水  

Treatment of fermentation alcohol wastewater by coagulation-precipitation process

作　　者：宋宏杰[1] 刘培[2,3] 唐敏[2,3] 孔德芳[2,3] 范佳琦[2,3] 

机构地区：[1]郑州大学水利与环境学院,郑州450002 [2]郑州大学环境技术咨询工程公司,郑州450002 [3]郑州大学环境政策规划评价研究中心,郑州450002

出　　处：《环境工程学报》2012年第12期4372-4376,共5页Chinese Journal of Environmental Engineering

基　　金：国家"十一五"水体科技重大专项(2009ZX07210-002)

摘　　要：采用混凝沉淀法对酒精废水进行深度处理实验及放大应用研究。结果表明,混凝剂种类、投加量、pH值及沉降时间对处理效果都起着重要作用。通过正交实验确定最优化组合,即聚合硫酸铝投加量为60 mg/L,pH为8.0左右,沉降时间为90 min条件下,废水COD去除率达41.91%;浊度去除率达46.15%;NH3-N去除率达49.61%。混凝沉淀法处理酒精废水可有效减轻后续膜处理工艺负荷,有助于提高回用水质。The coagulation precipitation was used to treat the fermentation alcohol wastewater. The influ- ences of coagulation nature, coagulation dosage, pH and sedimentation time were researched. The study showed that PAS was superior to PAC and PFS. The optimum reaction conditions were at pH 8 and 60 mg/L of PAS with 90 min of sedimentation time. Under these conditions, the removal rates of COD, turbidity and NH3-N would reach 41.91% , 46. 15% and 49.61% , respectively. The results demonstrated that coagulation precipitation would lighten the burden of following afterpurification system, and help to enhance quality of recycled water

关 键 词：酒精废水 混凝沉淀 正交实验 深度处理 

分 类 号：X703[环境科学与工程—环境工程]