沸石生物联合吸附再生工艺及铵沸石再生  

ZEOLITE-BIOLOGY-UNION ADSORPTION AND REGENERATION PROCESS AND THE REGENERATION OF ZEOLITE ADSORPTED WITH AMMONIUM

作　　者：黄友谊[1] 吴志超[1] 陈和谦[1] 张善发[2] 麦穗海[2] 王荣生[2] 

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]上海市水务局,上海200040

出　　处：《环境化学》2006年第5期615-618,共4页Environmental Chemistry

基　　金：上海市科委重大攻关课题"沸石强化生物脱氮工艺技术与设备工程化研究"(02DZ12099)

摘　　要：简述了沸石生物联合吸附再生的工艺原理,重点讨论吸附了NH4+的沸石粉的生物再生.结果表明,沸石和液相之间的NH+4是一种动态的离子交换平衡,污水的电导率对吸附了NH+4的沸石粉的NH4+解吸量有明显的影响;污水中阳离子对吸附了NH4+的沸石粉的再生率可达40%—50%,在微生物的硝化作用下可达94%.沸石生物联合吸附再生工艺中,吸附了NH+4的沸石粉的再生是“化学再生”和“生物再生”相结合的过程,生物硝化作用促进了沸石相中NH4+的解吸.The principle of zeolite-biology-union adsorption and regeneration process was briefly stated, and then the key technique of the process： the regeneration of zeolite adsorpted with ammonium, was discussed. The study shows that there is an ion exchange equilibrium of NH4^＋ between the zeolite and the wastewater, the conductance of wastewater is the key factor to the regeneration of NH4^＋ from zeolite; that the regeneration ratio of zeolite is from 40% to 50% readsorbed by the cation in the wastewater, and with the effect of nitration of activated sludge it increases to 94%. In zeolite-biology-union adsorption and regeneration process, the zeolite adsorbed NH4^＋ is regenerated by the effect of both cation and nitration of activated sludge.

关 键 词：沸石 生物再生 铵. 

分 类 号：X703[环境科学与工程—环境工程]