摘要
比较了5种真菌对染料水中染料的吸附去除和与脱色降解细菌L-1菌株（Enterobactersp．）和L-2菌株：Pseudomonassp．）对吸附染料的脱色降解能力；以吸附去除率和完全脱色时问综合评价，对筛选出的吸附性强并与细菌共暗养时染料分子脱色降解速度快的绿曲霉为染料吸附菌，进一步测定了温度和pH值对绿曲霉吸附和与细菌共培养脱色降眸活性黄M-3RE（C．I．Re．Ye．145）的影响。结果表明，温度对绿曲霉的吸附能力影响不大，在16～36℃下吸附5h对活性旨M-3RE的去除率在95．1％～97．9％之间，但染料的完全脱色降解时间受温度影响较大，32～36℃下染料分子脱色降解菠快。pH值对绿曲霉和细菌吸附、脱色降解能力均有一定影响。利用绿曲霉和细菌对印染行业中染料含量较高的染浴废水进行处理，绿曲霉可通过吸附作用快速去除废水中的染料分子，废水经绿曲霉处理5h，色度、COD去除率分别为85．8％阳56．1％，BOD／COD值由处理前的0．238提高到处理后的0．652，吸附在菌丝上的染料分子在细菌的共同作用下脱色降解。
The removal rates of the dye biosorption in dye solution by 5 fungus and the capabilities of their decoloration and degradation to the adsorbed-dyes, cocuhuring with bacteria strains L-1 （Enterobacter sp. ） and L- 2（Pseudomonas sp. ）were compared based on the integrate evaluation of the removal rate of sorption with the times. The screened Aspergillus sp. , which possessed strong sorption ability and fast decoloration and degradation rate coculturing with the bacteria, was used to further determine the effect of the temperatures and pH on the sorption, decoloration and degradation to the dye, reactive yellow M-3RE（ C. I. Re. Ye. 145 ）. It was observed that the temperature had little effect on the sorption ability of Aspergillus sp. and the removal rates of sorption were from 95. 1% to 97.9% at 16 -36 ℃ in 5 h while the time of complete decoloration and degradation was largely effected by the temperature and was shorter at 32 - 36 ℃. The pH value showed a certain effect on the sorption, decoloration and degradation of the Aspergillus sp. and bacteria to the dye. Furthermore, the wastewater from a printing and dyeing factory, with a great amount of dyes, was treated with the Aspergillus sp. and the bacteria. The dye molecules in the wastewater were rapidly adsorbed by Aspergillus sp. , and the removal rates of coloration and COD were 85.8% and 56. 1% ,respectively, and BOD/COD ratio （0. 238 at pre-treatment） was increased to 0. 652 after the treatment. The mycelia-adsorbed dye molecules were finally degraded through the bacteria effects.
出处
《环境工程学报》
CAS
CSCD
北大核心
2007年第4期48-52,共5页
Chinese Journal of Environmental Engineering
基金
江苏省教育厅资助项目(02KJB610001)
关键词
染料
生物吸附脱色
真菌和细菌
协同作用
dyes
biosorption and decolorization
fungus and bacterium
synergism
作者简介
倪建国（1964-），男，讲师，主要从事遗传学与环境生物学教学与研究。E-mail：nijianguo@suda．edu．cn
