生物滴滤塔降解甲硫醇和乙硫醇的速率研究  

Study on removal rate of methyl mercaptan and ethanethiol by bio-trickling filter

作　　者：李少辉[1] 闫波[1] 李芬[1] 王广懋[2] 刘波[3] 姜安玺[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [2]哈尔滨供排水集团有限责任公司,黑龙江哈尔滨150010 [3]南京大学环境学院,江苏南京210093

出　　处：《黑龙江大学自然科学学报》2005年第6期724-728,共5页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金资助项目(59978011)

摘　　要：从脱臭反应动力学角度讨论了生物法脱除恶臭成分甲硫醇和乙硫醇的速率及影响因素。试验表明在达到一定浓度或者流量之前,随着浓度或者流量的增大,降解速率增大,一旦超过该浓度或者流量,降解速率就会降低,说明甲硫醇和乙硫醇为抑制性基质,且甲硫醇的抑制系数要大于乙硫醇。同时研究了喷淋水量、SO42-浓度对脱臭速率的影响,表明当喷淋量小于29L.h-1时,降解速率随着喷淋量的增大而不断增大,之后会在一定水量范围内几乎不变。而喷淋液中SO42-浓度的增大会降低甲硫醇和乙硫醇的降解速率,且SO42-浓度对降解甲硫醇的抑制作用要比乙硫醇小。The removal rate of methyl mercaptan （MM） and ethanethiol （ET） and its effect factors were mostly studied on kineties. The study indicated that before reaching a certain concentration or flow, the removal rate became larger when the concentration or flow of MM and ET increased. If they were in excess of the amounts, the removal rate would decrease. It showed that MM and ET were inhibiting medium and the inhibitor factor of MM was larger than the one of ET. The effect of the factors, such as amount of spray water and SO4^2- , on the removal rate was also discussed. When the amount of spray water was less than 29L·h^-1, the removal rate would increase with the accretion of amount of spray water, and then it would not change in a certain range. But the removal rate would decrease along with the augmentation of SO4^2- concentration, and the inhibition of the SO4^2- concentration to MM was smaller than to ET.

关 键 词：生物滴滤 甲硫醇 乙硫醇 降解速率 

分 类 号：TQ028[化学工程]