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邯鄲膨潤(rùn)土吸附含鎳廢水的實(shí)驗(yàn)研究
楊萃娜，丁述理
(河北工程大學(xué)資源學(xué)院，河北邯鄲056038)
摘要:研究了邯鄲鈣基膨潤(rùn)土及其鈉化改性土對(duì)模擬廢水中Ni2+的吸附行為，探索了膨潤(rùn)土用量、吸附時(shí)間、pH值、初始離子濃度和溫度等因素對(duì)Ni2+吸附效果的影響。結(jié)果表明，實(shí)驗(yàn)所用兩種膨潤(rùn)土對(duì)Ni2+的吸附在15min時(shí)基本達(dá)到吸附平衡，吸附率隨溶液pH值的增大、吸附劑用量的增加、攪拌時(shí)間的延長(zhǎng)而增大；鈉化土的吸附效果明顯優(yōu)于鈣基土，Ni2+的去除率可達(dá)96％以上；經(jīng)鈉化土處理后廢水中的Ni2+濃度 為0．8 2 5mg／L,低于國(guó)家排放標(biāo)準(zhǔn)1mg／L。
關(guān)鍵詞 ：鈣基膨潤(rùn)土；鈉化土；吸附；Ni2+
中圖分類號(hào)：P6l9．25 文獻(xiàn)標(biāo)識(shí)碼：A
Removal of Ni2+ from containing wastewater by bentonite of Handan
YANG Cui-n a, DING Shu-li
(College of Natural Resource，Hebei University of Engineering，Handan 056038，China)
Abstract：The removal of Ni2+ cations from artificial wastewater by Ca-bentonite and Na-bentonite of Han-dan was studied.The effect of adsorption conditions on the adsorption behavior of bentonite was investigated，such as the amount of bentonite，adsorption time，pH value，initial concentration and temperature．
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