交联改性膨润土处理Cr (VI) 废水的研究.pdf

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第33卷第2期非金属矿
201O年3月 N on—M etallic M ines M arch,20l0
交联改性膨润土处理Cr(VI)废水的研究
郑宾国李春光刘群姜灵彦刘志宽。
(1郑州航空工业管理学院资源与环境技术研究所,河南郑州 450015;2 驻马店市环境监测站,河南驻马店 463000)
摘要以膨N-+-~g料,制备了铁镍改性膨N-+-,研究了不同条件下铁镍改性膨润土对水中Cr(WI)的吸附性能,结果表明:在废水pH值为
4,Cr(VI)初始浓度为 22mg/L,铁镍改性膨润土用量为 5g/L,吸附 lh,温度为 25~C条件下,铁镍改性膨润土对 cr(VI)的去除率达到 94%以上。
关键词铁镍改性膨润土 Cr(V1)废水吸附
中图分类号:;X703 文献标识码:A 文章编号:1000-8098(2010)02-0057-03
ResearchTreatmenton Cr(VI)一Containing of Wastewater byModified Bentonite
ZhengBinguo Chunguang Li QunLiu Lingyan Jiang ZhikuanLiu
(1 Institute ofResourcesandEnvironment,Zhengzhou Management,Zhengzhou (1 ofAeronautical Institute Institute 450015;2 ZhumadianEnviromental
Monitoring Center,Zhumadian Monitoring 463000)
Abstract Fe·-Ni modified bentonie was synthesized and applied to adsorb Cr(V1)·-containing results show that the removal ratio ratio removal the showthat results Cr(V1)·-containing adsorb to applied and synthesized was bentonie modified Abstract Fe·-Ni
of Cr(VI)is over 94%under following conditions:the pH value of the wastewater is 4,initial concentration of Cr(VI)is 22mg/L,the Cr(VI)is of Fe-Ni ofconcentration dosage 4,initial is wastewater 94%under the over ofpH conditions:theCr(VI)is value of following
modified bentonite iS 5叽 iS bentonite modified 25℃.lh,and iS ,thetemperaturetime the adsorption
Key