邯鄲膨潤土吸附含鎳廢水的實驗研究

　　楊萃娜，丁述理

　　(河北工程大學資源學院，河北邯鄲056038)

　　摘要:研究了邯鄲鈣基膨潤土及其鈉化改性土對模擬廢水中Ni2+的吸附行為，探索了膨潤土用量、吸附時間、pH值、初始離子濃度和溫度等因素對Ni2+吸附效果的影響。結果表明，實驗所用兩種膨潤土對Ni2+的吸附在15min時基本達到吸附平衡，吸附率隨溶液pH值的增大、吸附劑用量的增加、攪拌時間的延長而增大；鈉化土的吸附效果明顯優于鈣基土，Ni2+的去除率可達96％以上；經鈉化土處理后廢水中的Ni2+濃度 為0．8 2 5mg／L,低于國家排放標準1mg／L。

　　關鍵詞 ：鈣基膨潤土；鈉化土；吸附；Ni2+

　　中圖分類號：P6l9．25   文獻標識碼：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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