摘要
用化学方法和生物方法对沸石滤料曝气生物滤池(ZBAF)中长期运行吸铵饱和的沸石进行再生,并通过吸附动力学和吸附热力学对新鲜沸石和再生沸石的吸附容量和吸附速率进行了试验研究。研究结果表明:再生沸石对铵氮良好的吸附和交换性能仍然存在;再生沸石的吸附速率较新鲜沸石有所下降;化学再生沸石的吸附容量较新鲜沸石基本不变,而生物再生沸石的吸附容量下降较大。
The adsorption capacity and adsorption rate were studied by absorption kinetic and isotherm between the fresh zeolite and the recovered zeolite which was worked and saturated with ammonium in zeolite media biological aerated filter （ZBAF）. The results showed that the adsorption characteristics of the recovered zeolite for ammonium still remained. The adsorption rate of the recovered zeolite was lower than the fresh zeolite. The adsorption capacity of the chemical recovered zeolite was almost same to the fresh zeolite. But the adsorption capacity of the biological recovered zeolite became largely smaller than the fresh zeolite.
出处
《净水技术》
CAS
2007年第5期42-45,共4页
Water Purification Technology
关键词
新鲜沸石
再生沸石
吸附容量
吸附速率
fresh zeolite recovered zeolite adsorption capacity adsorption rate
