摘要
采用活性炭吸附分离-生物再生法处理高盐苯胺废水,对活性炭吸附分离效果、生物再生的影响因素及其原理和稳定性进行了考察。当NaCl质量分数为15%时,活性炭对苯胺的饱和吸附量为320~380mg/g,对NaCl的分离效率大于99%。在25℃、接种量为25%的条件下,吸附饱和的活性炭经过120h生物再生,再生效率达80%以上。该方法处理效果稳定,4次循环运行后对NaCl的分离效率和生物再生效率均无明显变化。
The high salinity aniline-containing wastewater was treated by activated carbon adsorption separation - biological regeneration process. The adsorption separation effect of activated carbon and the affecting factors, principle and stability of biological regeneration were studied. When the mass fraction of NaCl is 15%, the adsorbing capacity of activated carbon to aniline is 320-380 mg/g and its separation efficiency to NaCl is 99%. After bio-regenerated for 120 h under the conditions of 25℃ and inocuhim size 25%, the percentage regeneration of saturated activated carbon is over 80%. This process has a steady treatment effect with no obvious change of both separation efficiency and biological percentage regeneration after 4 times of adsorption-regeneration circulations.
出处
《化工环保》
CAS
CSCD
北大核心
2006年第2期107-110,共4页
Environmental Protection of Chemical Industry
关键词
活性炭
生物再生
苯胺
废水处理
activated carbon
biological regeneration
aniline
wastewater treatment