Fe/C微电解+硫酸铝组合工艺对麦草制浆造纸废水处理效果的研究  

Study of treatment on wheat straw pulp and papermaking wastewater by combined process Fe/C microelectrolysis+Al2(SO4)3

作　　者：宋晓乔 任天龙 张伟刚 蹇骐蔚 SONG Xiao-qiao;REN Tian-long;ZHANG Wei-gang;JIAN Qi-wei(Xi’an University of Architecture and Technology Huaqing College,Xi’an 710043,China;Xi’an Capital Water Company Limited,Xi’an 710086,China;China United Northwest Institute forEngineering Design & Research Co.,Ltd.,Xi’an 710077,China)

机构地区：[1]西安建筑科技大学华清学院,陕西西安710043 [2]西安创业水务有限公司,陕西西安710086 [3]中联西北工程设计研究院有限公司,陕西西安710077

出　　处：《应用化工》2021年第1期98-99,109,共3页Applied Chemical Industry

基　　金：陕西省教育厅专项科研计划项目(18JK1021)。

摘　　要：采用微电解+硫酸铝混凝组合工艺对麦草制浆造纸废水进行处理,采用正交实验考察微电解法工艺参数:pH、铁屑用量、活性炭用量和磁力搅拌时间对CODCr去除率和脱色率的影响。结果表明,铁/碳微电解+硫酸铝组合工艺的优化工艺参数为:废水pH值为6.0,反应时间90 min,铁屑用量为30 g/L,活性炭用量6 g/L,其CODCr去除率80%,脱色率90.5%。Fe/C微电解和硫酸铝组合对脱色效果大大提高,由于其絮凝作用的重合,对COD去除率效果并未大幅提高。Using the micro-electrolysis+aluminum sulfate coagulation process to treatment the wheat straw pulping and papermaking wastewater.The influence of the pH of the effluent from the micro-electrolysis,iron fillings dosage,carbon dosage and magnetic stirring time on removal rate and decolarization rate of CODCr was investigated by the orthogonal method.The result showed that the optimum process parameter were:the pH of the wastewater was determined to be 6.0,the reaction time was 90 min,the ironfillings dosage was 30 g/L,and the activated carbon dosage was 6 g/L and the removal rate of CODCr was up to 80%,and the decolorization rate was up to 90.5%.The combination of Fe/C microelectrolysis and aluminum sulfate greatly improved the decolorization effect,but the effect of the superposition of their flocculation on the COD removal rate did not increase significantly.

关 键 词：麦草浆造纸废水 微电解/硫酸铝组合工艺 CODCR 脱色率 

分 类 号：TQ085.4[化学工程] TQ340.9