腐殖酸树脂处理含Zn^2＋、Ni^2＋废水的研究

利用泥炭为原料制备出腐殖酸树脂，在动态条件下，研究了腐殖酸树脂对重金属离子Zn^2＋、Ni^2＋的吸附效果及吸附条件。结果表明，在20℃，流速为4mL／min，pH值为5．0～7．0，含Zn^2＋、Ni^2＋浓度分别为70mg／L的废水经过腐殖酸树脂处理，Zn“、Ni。’去除率可达98％以上，且处理后的废水pH值近中性。含Zn^2＋、Ni^2＋浓度分别为32．5mg／L和29．4mg／L，pH值为5．9的电镀废水经腐殖酸树脂处理后，废水中Zn^2＋、Ni^2＋含量明显低于国家排放标准。

Study on the Treatment of Waste Water Containing Heavy Metal Ions by Humic Acid Resin

The humic acid resin is prepared with peat as material. Under the dynamic condition, the adsorption effect and conditions of humic acid resin against heavy metal ions such as Zn^2＋ and Ni^2＋ are studied. The result shows that the removing efficiency of Zn^2＋ and Ni^2＋ over 98% and the pH value near neutral after being treated by humic acid resin when waste water containing 70 mg/L of Zn^2＋ and Ni^2＋ , pH 5.0 - 7.0,the temperature is 20 ℃ and the flow speed is 4 mL/min. The electroplating waste water which containing 32.5 mg/L of Zn^2＋ and 29.4 mg/L of Ni^2 ＋ and pH 5.9 after absorbed by humic acid resin, the contents of Zn^2 ＋ and Ni^2＋ in waste water are prominently lower than discharge standard of China