含特殊悬浮物矿井水正交混凝试验研究  

INVESTIGATION OF ORTHOGONAL EXPERIMENTS OF COAGULATION FOR MINE DRAINAGE WATER WITH PARTICULAR SUSPENDED SOLIDS

作　　者：陈永春[1] 高杰[2] 谢毫[1] 周如禄[2] 柳炳俊[1] 郭中权[2] 

机构地区：[1]淮南矿业(集团)有限责任公司煤矿生态环境保护国家工程实验室,安徽淮南232001 [2]中国煤炭科工集团杭州研究院,浙江杭州311201

出　　处：《能源环境保护》2013年第1期17-20,共4页Energy Environmental Protection

摘　　要：针对煤矿在特定时期排出的以微细岩石粉为主的特殊悬浮物矿井水水质,设计了L25(56)正交混凝试验,考察混凝过程中各因素对出水浊度的影响程度及最优化条件。结果表明,在各因素水平取值范围内,各因素对出水浊度的影响显著性次序为:絮凝剂投加量>絮凝剂种类>PAM投加量>絮凝转速>絮凝时间>PAM投加间隔时间;混凝的最优化条件:选择PAFC作为絮凝剂,PAFC投加量为250 mg.L-1,PAM投加量为0.50 mg.L-1,PAM投加间隔时间为120 s,絮凝转速和时间分别为190 r.min-1快速搅拌2 min、70 r.min-1中速搅拌10min、40 r.min-1慢速搅拌13 min。Aimed at t he quality of mine drainage water with particular suspended solids mainly consisted of superfine rock powders at a specific period, this paper investigated the optimum conditions and the influential degree of effluent turbidity by various factors in the coagulation process, with designing L25（5^6） orthogonal experiments. The results show that the significant sequence of influence by various factors to effluent turbidity was flocculant doses 〉 flocculant species 〉 PAM doses 〉 revolving speed of flocculation 〉 flocculation time 〉 PAM dosing interval. And the optimum conditions were： selecting PAFC as flocculant; PAFC dose of 250 mg·L^-1; PAM dose of 0.50 mg·L^-1; PAM dosing interval of 120 s; revolving speed of flocculation and time being quick stirring speed of 190 r .min-1 with 2 min, intermediate stirring speed of 70 r·min^-1 with 10 min, and slow stirring speed of 40 r·min^-1 with 13 min, respectively.

关 键 词：矿井水 悬浮物 混凝 净化处理 正交试验 

分 类 号：X705[环境科学与工程—环境工程]