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青霉菌GX2对蒽醌染料的吸附作用
引用本文:辛宝平,庄源益,邹其猛,戴树桂,宋文华. 青霉菌GX2对蒽醌染料的吸附作用[J]. 环境科学, 2001, 22(1): 14-18
作者姓名:辛宝平  庄源益  邹其猛  戴树桂  宋文华
作者单位:南开大学环境科学系,天津,300071
基金项目:国家自然科学基金资助项目(29877014)
摘    要:GX2生长菌体对 4种蒽醌染料均表现出优良的吸附性能 ,但由于染料分子的结构不同 ,吸附速率和吸附率也表现出一定的差异 .染料对菌体的生长具有一定的抑制作用 ,但即使在很高的染料浓度下 ,GX2生长菌体仍表现出很强的吸附性能 .对 250mg/L活性艳蓝KN-R的吸附率高达 100% ,对 400mg/LKN R的吸附率也可达91.4% .在 0~2%范围内 ,随着盐度 (NaCl)的增加 ,菌体干重增加 ;颗粒状菌团的直径却随之减小 ,比表面积增大 ,对GX2生长菌体的染料吸附表现出较为明显的促进作用 .碳源浓度通过影响菌体的生长而影响染料吸附 ,当培养基中的葡萄糖浓度大于 2.5g/L时 ,即可使浓度为 120mg/L的活性艳蓝KN R溶液完全脱色 .生长菌体具有比静止活体和死体更好的吸附性能 .

关 键 词:生物吸附  吸附率  染料  吸附菌  青霉菌
文章编号:0250-3301(2001)01-05-0014
收稿时间:2000-01-18
修稿时间:2000-01-18

Adsorption of Anthraquinone Dyes by Biosorbent GX2
Xin Baoping,Zhuang Yuanyi,Zou Qimeng,Dai Shugui and Song Wenhua. Adsorption of Anthraquinone Dyes by Biosorbent GX2[J]. Chinese Journal of Environmental Science, 2001, 22(1): 14-18
Authors:Xin Baoping  Zhuang Yuanyi  Zou Qimeng  Dai Shugui  Song Wenhua
Affiliation:Department of Environmental Science, Nankai University, Tianjing 300071.
Abstract:The GX2 growing mycelium shows excellent adsorptive capacity on the four kinds of anthraquinone dyes, however, due to the difference of molecular structure of dyes, the adsorption rates are different. Although the dyes show inhibiting effect on the growth of GX2, when the concentration of reactive brilliant blue KN-R is 250 and 400 mg/L, the adsorption rate of dye by the GX2 growing mycelium reaches 100% and 91.4%, respectively. With the increase of salinity (NaCl), the dry weight of GX2 mycelium increases; the diameter of granular mycelium decreases and its adsorption surface area increases accordingly, the salinity shows evident enhancement on the adsorption of reactive brilliant blue KN-R by GX2 growing mycelium in the range of 0%-2% salinity. The adsorption process is influenced by the concentration of carbon source as well, reactive brilliant blue KN-R with the concentration of 120 mg/L can be completely adsorbed only when the concentration of glucose is more than 2.5 g/L. The GX2 growing mycelium has better adsorptive capacity than resting living mycelium and dead mycelium.
Keywords:biosorption  adsorption rate  dye  adsorption fungus  Penicillium sp
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