无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2016, Vol. 48 ›› Issue (3): 63-.

• 论文 • 上一篇    下一篇

含铝废渣制备聚硅酸铝铁絮凝剂处理造纸废水

刘晓红,荀开昺,杨方麒,邱舜国   

  1. 南昌大学资源环境与化工学院,江西南昌 330031
  • 出版日期:2016-03-10 发布日期:2016-03-11

Preparation of flocculant PAFSC by aluminium waste slag and application in pulping wastewater treatment

 LIU  Xiao-Hong, XUN  Kai-Bing, YANG  Fang-Qi, QIU  Shun-Guo   

  1. School of Resources,Environmental & Chemical Engineering,Nanchang University,Nanchang 330031,China
  • Online:2016-03-10 Published:2016-03-11

摘要: 以铝合金废渣为原料制备了聚硅酸铝铁(PAFSC)絮凝剂。通过单因素实验优选出盐酸浸取铝合金废渣最佳条件:反应时间为20 min,反应温度为80 ℃,盐酸浓度为6 mol/L,盐酸与铝物质的量比为3∶1。在此条件下铝的浸取率>95%。用浸取铝合金废渣得到的氯化铝溶液制备聚硅酸铝铁絮凝剂,并用于处理造纸废水。当聚硅酸铝铁絮凝剂投加量为400 mg/L时,其对造纸制浆废水COD、色度的去除率分别达到68%、92%。聚硅酸铝铁絮凝剂处理造纸制浆废水的效果优于聚合氯化铝(PAC)絮凝剂。

关键词: 铝合金废渣, 浸取, 聚硅酸铝铁絮凝剂, 处理, 造纸废水

Abstract: Flocculant PAFSC was prepared by aluminium alloy waste slag as raw material.Through the single factor experi- ment,the optimum conditions to leaching aluminium waste slag in hydrochloric acid were as follows:reaction time was 20 min,reaction temperature was 80 ℃,hydrochloric acid concentration was 6 mol/L,and amount-of-substance ratio n(HCl)∶n(Al)= 3∶1.The leaching rate of aluminium was more than 95% under these conditions.By leaching aluminium waste slag to get the aluminium chloride solution to produce the PAFSC and PAFSC was applied in pulping waste water treatment.Using 400 mg/L of the PAFSC to deal with the pulping wastewater,the COD removal rate and decolorization rate of pulping wastewater could reach 68% and 92% respectively.The effect of PAFSC was better than that of PAC(polyaluminium chloride).

Key words: aluminium waste slag, leaching, flocculant PAFSC, treatment, pulping wastewater

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