提高生物法净化NO_x废气性能的实验探索  

Test study on enhancing capability for biopurifying NO_x waste gas

作　　者：孙珮石[1] 张唯[2] 王恒颖[1,2] 王洁[1] 黄贤峰[1,2] 苏毅[3] 束嘉绣[3] 邓辅唐[1] 杨常亮[1] 

机构地区：[1]云南大学环境与湖泊研究院,云南昆明650091 [2]云南大学生命科学学院,云南昆明650091 [3]昆明理工大学化学工程学院,云南昆明650093

出　　处：《云南大学学报（自然科学版）》2009年第3期280-284,共5页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家"863"计划资助项目(2007AA06Z312;2002AA649050);国家自然科学基金资助项目(50478116)

摘　　要：采用生物膜填料塔实验装置,从添加pH缓冲剂、CO2气体、有机酸、金属离子催化剂以及好氧/厌氧、中性/酸性操作条件等方面,对提高生物法净化低浓度NOx废气(以NO为主要成分)性能进行了实验探索.结果表明,以NaHCO3作为缓冲剂、添加少量冰醋酸以及在好氧及中性条件下操作,能够显著提高生物膜填料塔对废气中NO的净化性能.对于在好氧及酸性条件下,添加少量金属离子催化剂同样可以明显提高生物膜填料塔对废气中NO的净化性能.By means of the test systems of biofilm- packing tower, a test study on enhancing capability for biopurifying NOx（ NO as a basis） waste gas was performanced,in which the effects of adding pH buffer,CO2 gas, organic acid, metal ions catalyst and operating the test tower under the aerobic/anaerobic condition, the neutral/ acidic condition on the purification capability of NO waste gas were studied. The results showed that by adding NaHCO3 as a pH buffer, a little glacial acetic acid and operating the tower under the aerobic/neutral condition, the capability of the biofilm - packing tower for biopurifying NO could be enhanced markedly. Under the aerobic/ acidic condition, by adding a little metal ions catalyst, the capability for biopurifying NO could be improved obviously as well.

关 键 词：NOX废气 生物法净化 提高性能 

分 类 号：X511[环境科学与工程—环境工程]