摘要
在静态试验条件下,研究了沸石对高含氨氮味精废水的处理效果,考察了沸石粒径、沸石用量及再生方法的不同对吸附作用的影响.试验表明:粒径越小,吸附能力越强;5 g粒径270～833μm的沸石在振荡2 h后,废水中氨氮去除率达67.1%.通过动态吸附试验,对比沸石再生前后的穿透曲线,发现沸石再生后的吸附能力与再生前相差无几,有效寿命达151 h,比再生前寿命缩短仅17 h.由此表明沸石是一种较为理想的脱氮吸附剂.
Under static test, the treatment efficiency of monosodlum glutamate wastewater with rich ammonia is researched, and the influencing factors such as zeolite size, zeolite dosage and regeneration methods are studied. The results show that the smaller the granule, the better the adsorption capacity. With 5g zeolite granule size of 270～833μm orders surging for two hours, the NH3-N removal ratio can reach 67.1%. Moreover, from the comparison of the penetrating curves of fore-and-aft regenerated zeolite, we can find that the adsorption capacity of regenerated zeolite is close to that of natural zeolite by dynamic test. The effective life is 151 h, 17 h less than the latter. So zeolite is a sort of more perfect sorbent of denitrification.
出处
《郑州大学学报（工学版）》
CAS
2005年第3期20-23,共4页
Journal of Zhengzhou University（Engineering Science）
关键词
天然沸石
吸附
再生
氨氮
味精废水
natural zeolite
absorb
regenerate
ammonia nitrogen
monosodlum glutamate wastewater
