甲苯对厌氧反应过程的影响研究  

Research on Effect of Toluene on Anaerobic Reaction Process

作　　者：万斌 李振玉 刘正 

机构地区：[1]江苏博大环保股份有限公司,江苏宜兴214205 [2]南京城建环保水务投资有限公司,江苏南京211106 [3]北京化工设计研究院,北京100013

出　　处：《化学与生物工程》2012年第7期72-74,共3页Chemistry & Bioengineering

摘　　要：研究了甲苯对厌氧反应过程的影响。结果发现,厌氧系统对有机负荷的冲击有一定的缓冲作用,产酸相内挥发性脂肪酸(VFA)浓度随有机负荷的提升而升高;当甲苯浓度≤20mg.L-1时,对产酸相CODCr的降解及VFA的产量具有明显抑制作用,驯化一段时间后可恢复正常;甲苯对产甲烷相和产酸相CODCr去除无明显抑制作用。甲苯浓度≤70mg.L-1时,甲苯在厌氧系统内可得到良好的降解,出水甲苯浓度<0.1mg.L-1,达到国家一级排放标准。即使进水甲苯浓度达到200mg.L-1,甲苯的去除率仍达99%以上。The effect of toluene on anaerobic reaction process was studied. The fluctuations of organic con-centration within a certain range could be accepted in the anaerobic system. The production of volatile fatty acids （VFA）of acid production phase increased with organic concentration. When the toluene concentration was low- er than 20 mg ~ L-1 ,the CODc, removal efficiency and production of VFA of acid production phase were signifi- cantly inhibited and they returned to the previous level after a period time of domestication. Toluene didn＇t in- hibit the CODc, removal of methane production phase and acid production phase significantly. When the toluene concentration was lower than 70 mg·L^-1 ,it was degraded well in the anaerobic system and the toluene concen- tration in effluent was less than 0.1 mg ·L^-1 , which met the grade I national discharge standard. The toluene was degraded by 99 % even though the toluene concentration increased to 200 mg·L^-1.

关 键 词：厌氧过程 甲苯 影响 

分 类 号：X703[环境科学与工程—环境工程]