改性沸石处理含镍废水的研究

Investigation of modified zeolite absorption to Ni^(2+) in wastewater

用丁二酮肟(DMG)修饰经十六烷基三甲基溴化铵(CTAB)改性的人造沸石吸附模拟废水中的Ni2+。结果表明,吸附时间为50 min,改性沸石用量为1.1 g,Ni2+初始浓度为20 mg/L,pH值为7.0,温度为35℃,溶液体积为25 mL时,吸附率达98%以上,且受其他干扰离子(Cu2+、Pb2+)的影响不大。

A sort of cheap sorbent was prepared through modifying artificial zeolite with CTAB and DMG, then the adsorptioia behavior of the modified zeolite for nickel ion in wastewater was investigated. The re- suits showed that the adsorption effect was above 98% when the adsorption time was 50 min, the dosage of modified zeolite was 1.1 g, the concentration of Ni2＋ was 20 mg/L, the pH value of solution was 7.0,the temperature of solution was 35 ℃ volume of solution was 25 mL, and the effect by ion （ Cu2＋ , Pb2＋ ） was negligible.