含氯漂白废水培养白腐菌对二噁英类污染物降解的研究  

Studies on the Degradation of Dioxins Polluter by White Rot Fungus Cultured in Chloro-bleaching Effluents

作　　者：徐晓峰[1] 林鹿[2] 何北海[2] 蒋李萍[2] 刘婧[2] 龚艳[2] 孙润仓[2] 

机构地区：[1]北京师范大学珠海分校工程技术学院,广东珠海519085 [2]华南理工大学制浆造纸工程国家重点实验室,广东广州510640

出　　处：《中国造纸学报》2007年第3期48-51,共4页Transactions of China Pulp and Paper

基　　金：该项目由广东省自然科学基金项目(05006547)资助。

摘　　要：探讨了白腐菌Phlebia radiate I-5-6在CEH漂白废水体系中对3种二噁英类污染物的降解能力。在12 d培养期内菌株对3种二噁英类物质的降解量分别为:DF>2,7-diCDD>OCDF;DF的降解高峰期在6～9 d,2,7-diCDD和OCDF降解率则与时间基本上成线性正比关系;DF的降解率以废水加入量为0时最高,达78.27%,但在6 d、9 d、12 d的培养期,废水加入量分别为40%、60%、80%时DF降解量最高,分别为18.90%、34.49%、6.77%;经过12 d的培养,20%浓度的漂白废水中,2,7-diCDD的降解率最大,为49.88%,但在6 d、9 d、12 d的培养期中,废水加入量分别为40%、60%、20%时,2,7-diCDD的降解量最高,分别为6.96%、16.20%、13.13%;菌株处理OCDF底物的效果不理想,12 d时其最大降解率只有32.31%,CEH漂白废水的加入量对OCDF的降解率无明显影响。This study was carried out to explore the ability of white-rot fungus Phlebia radiate 1-5-6 cultured in CEH bleaching effluents to degrade three kinds dioxins polluter. In 12 days cultivation, the degradation quantity are DF〉2,7-diCDD〉OCDF. The DF degradation reachs to pinnacle in 6 days to 9 days. The degradation rate of 2,7-diCDD and OCDF are almost linear with culture time. The highest degradation rate of DF is the 78.27 % with 0 % input of the CEH-bleaching effluent. But in 6 days, 9 days and 12 days cultivation when the CEH bleaching effluent input are 40%, 60% and 80% respectively, the highest degradation rate of DF are 18.90%, 34.49%, 6.77% respectively. After 12 days cultivation, the highest degradation rate of 2,7-diCDD is 49.88% in the bleaching effluent with 20% concentration. But in 6 days, 9 days and 12 days respectively, when bleaching effluent inputs are 40%, 60% and 20% respectively, the highest degradation rate of 2,7-diCDD are 6.96 %, 16.20 %, 13.13 % respectively. The highest degradation rate of OCDF is only 32.31% after 12days cultivation. This indicates that the CEH bleaching effluent input has insignificant impact on the degradation of OCDF.

关 键 词：白腐菌 降解 二噁英 含氯漂白废水 

分 类 号：X793[环境科学与工程—环境工程]