Fe^Ⅱ（NTA）吸收结合生物还原脱除烟气中NO研究  

Removal of Nitric Oxide by Fe^Ⅱ（NTA） Absorption Combined with Microbial Reduction

作　　者：荆国华[1] 周作明[1] 黎理[1] 

机构地区：[1]华侨大学环境科学与工程系,泉州362011

出　　处：《化学工程与装备》2006年第6X期55-60,共6页Chemical Engineering & Equipment

基　　金：国务院侨办基金项目（06QZR09）;福建省青年科技人才创新基金项目（2005J027）;福建省自然科学基金项目（2006J0136）;华侨大学高级人才引进科研启动项目（04BS311）

摘　　要：Fe^Ⅱ（NTA）为络合吸收剂，在恒温摇床中考察了微生物还原络合吸收液的特性，并进一步在填料塔中进行了连续脱除NO的工艺研究。结果表明，添加葡萄糖比醋酸钠、柠檬酸钠、甲醇、乙醇等更适合于作为该体系的碳源；在较低碳源用量下，还原速率随其用量的增加而增加，达到一定量以后再增加对还原反应没有促进作用；在进气量100ml·min^-1,NO浓度200cm^3·m^-3,O2含量3%的实验条件下，当系统达到稳定运行后，NO脱除率可保持在95%左右；烟气中O2含量增大至4%以后，NO脱除率会随之增加而下降。With the using of Fe^Ⅱ（NTA） as absorbent ,the reduction properties of the absorption solution by microorganisms in a shaking flasks and the continuously removal of NOin a packing column were investigated ,The results showed that supplemental glucose was better than sodium acetate,sodium citrate ,methanol and ethanol as carbon source .he bio-reduction of Fe^Ⅱ（NTA） no AND Fe^Ⅱ（NTA） could be achieved efficiently with enough amount of carbon source ,Reduction rate did not increase with adding more amount of carbon source ,NO removal effiiecy kept above 95 % with 1000ml·min^-1 of gas flow containing 200 cm^3·m^-3 NO and 3%O2·NO removal efficiency decreased with the increasing of O2 concentration when it was more than 4%.

关 键 词：Fe^Ⅱ(NTA) 生物还原 NOx 烟气脱氨 

分 类 号：TQ221.211[化学工程—有机化工]