固定化黑曲霉处理制革染色加脂废水COD与色度_赵长青.pdf

19 4 Vol1 19, No14 2009 8 LEATHER SC IENCE AND ENGINEERING Aug1 2009 : 1004-79 64 ( 20 09) 04-0 015-06 COD * 赵长青, 陈武勇 , 郑柳仙, 宋 丹, 文立乾 ( 四川大学制革清洁技术国家工程实验室, 四川 都 61006 ) : COD , , pH COD; pH COD, COD, ; pH 41 0 30 e 2 h 1 01 0 g/L , COD COD : ; ; ; ; : X 794 : A Rem oval of COD and Chrom inance in TanneryW astewater by Imm obilized A spergullus N iger * ZHAO Chang-qing, CHEN Wu-yong , ZHENG L iu-xian, SONG Dan, WEN L i-qian (N ationalEng ineering Laboratory f or Clean echnology of L eatherManuf acture, S ichuan University, Chengdu 61006 , China) Abstrac t Imm ob ilized Aspergullus nigerw as investigated as a new b iom aterial to rem oveCOD and chrom inance in tannery w astew ater of dyeing and fatliquoring. Aspergu llus n igerw as em bedded in powdered activated carbon to prepare mi m obilized Aspergu llus n iger. To detect its effect, COD in tanneryw astew aterwas removed by mi m ob ilized Aspergullus niger at d iffer- ent pH w ith activated carbon as a contro.l Its long-term effect w as obtained through reusing it. Then, COD and chrom -i nance in tannery wastew aterw ere removed by mi m obilized Aspergu llus niger at different pH, tmi e, temperature and b io- m ass. The resu lts showed that the COD rem oval effect of mi m obilized Aspergullus n iger was nearly the sam e as activated carbon, how ever, the form er kept better long-term effect than the latter; the rem oval effect for COD and chrom inancew ith mi mob ilized Aspergullus n iger was better when pH was 41 0, or t