聚合氯化铝预处理麦草制浆造纸废水的实验研究  

Study on pretreatment of wheat straw pulp and papermaking wastewater by PAC

作　　者：宋晓乔 白晋民 任天龙 陈娟 吉铮 马欣彤[1] SONG Xiao-qiao;BAI Jin-min;REN Tian-long;CHEN Juan;JI Zheng;MA Xin-tong(School of Civil Engineering,Xi’an University of Architecture and Technology Huaqing College,Xi’an 710043,China;Xi’an Capital Water Company Limited,Xi’an 710086,China;Shenzhen Puxin Technology Co.,Ltd.,Shenzhen 518117,China;School of Geography and Tourism,Shannxi Normal University,Xi’an 710119,China)

机构地区：[1]西安建筑科技大学华清学院土木工程学院,陕西西安710043 [2]西安创业水务有限公司,陕西西安710086 [3]深圳市普新环境资源技术有限公司,广东深圳518117 [4]陕西师范大学地理科学与旅游学院,陕西西安710119

出　　处：《应用化工》2020年第10期2515-2517,2521,共4页Applied Chemical Industry

基　　金：陕西省教育厅专项科研计划项目(18JK1021);陕西省大学生创新创业训练计划项目(S202013679015)。

摘　　要：采用常见的聚合氯化铝(PAC)预处理麦草制浆造纸废水,为后续工艺做好准备工作。采用单因素法优化各工艺参数,并着重考察了CODCr去除率和脱色率。结果表明,聚合氯化铝混凝法最优工艺参数为:混凝剂PAC用量为1 g/L,混凝pH值为6.0,混凝转速为100 r/min,助凝剂种类为阴离子型助凝剂(APAM),APAM用量为0.05 g/L,CODCr去除率为78.2%,脱色率为81.8%,效果好于活性炭吸附法。It prepares for the subsequent process by PAC which pretreatment wheat straw pulp papermaking wastewater.The single factor method was used to optimize the process parameters,and the COD Cr removal rate and decolorization rate were emphasized.The results show that the optimal process parameters of the polyaluminum chloride coagulation method are:coagulant PAC dosage is 1 g/L,coagulation pH is 6.0,coagulation rotation speed is 100 r/min,and coagulant type is APAM.The dosage of APAM is 0.05 g/L,the removal rate of COD Cr is 78.2%,and the decolorization rate is 81.8%,the effect is better than that of activated carbon adsorption.

关 键 词：麦草制浆 PAC CODCR去除率 预处理 

分 类 号：TQ085.4[化学工程] TQ340.9