标题:
改性粉煤灰对垃圾渗滤液中氨氮的吸附影响The Adsorbability of Ammonia Nitrogen from Landfill Leachate with Modified Fly Ash
作者:
宋丽, 杨清, 李颖颖, 张松刚, 刘少敏
关键字:
改性粉煤灰, 垃圾渗滤液, 氨氮, 吸附动力学Modified Fly Ash, Landfill Leachate, NH+4-N, Adsorption Kinetic
期刊名称:
《Water pollution and treatment》, Vol.3 No.3, 2015-07-13
摘要:
采用溶胶–凝胶法改性粉煤灰，并在500℃下煅烧消除残余有机物。通过改性粉煤灰处理淮南市垃圾渗滤液脱氮效率的研究，从而为去除垃圾渗滤液中的NH+4-N提供了一个有效的方法。通过垃圾填埋场渗滤液的吸附实验，发现pH值接近中性，改性粉煤灰投加量为3 g/L，低浓度垃圾渗滤液中的NH+4-N去除率接近100%；垃圾渗滤液NH+4-N的初始浓度为16 mg/L时NH+4-N去除率为80.24%。结果表明，改性粉煤灰的吸附性能较好。
Fly ash was modified by sol-gel method, and calcined at 500˚C to remove the residual organic matter. Through the study of NH+4-N removal efficiency in the treatment of landfill leachate of Huainan city with modified fly ash, an efficient way was provided to remove NH+4-N in landfill leachate. Through the absorption experiment of landfill leachate, it found that pH is close to neutral, the dosing quantity of modified fly ash is 3.0 g/L, the removal rate of NH+4-N in landfill leachate under the low concentration is close to 100%; Initial concentration of NH+4-N in waste leachate is 16 mg/L, the NH+4-N removal rate was 80.24%. It shows that the adsorption performance of modified fly ash is better.