摘要
采用聚集－交联法固定化紫色非硫光合细菌用于处理活性艳红Ｘ－３Ｂ染液。比较紫色非硫光合细菌和固定化细胞的某些性质，２种细胞的反应最适温度均为３０－４０℃，固定化细胞的反应最适ｐＨ值范围较宽，为７．５－９．４，热稳定性较好。Ｃｕ（２＋）对２种细胞酶活力均有抑制作用；比较聚集－交联固定化细胞和海藻酸钠包埋固定化细胞的脱色能力，前者比后者酶活力较高，半衰期长，成本低，操作方法简单，易于工业化应用。
The spent dye bath of active Bright Red X-3B was treated by using aggregation and cross linkage immobilized purple non- sulfur photosynthetic bacteria (PSBs). The PSBs and their immobilized cells were compared for some of their performances.It was found that both of the cells had an optimum reaction temperature in the range of 30- 40 ℃,and the immobilized cells had an optimum reaction pH in the broader range of 7. 5 - 9. 4, with a better thermal stability. Cu￣(2+) had an inhibitory effect on the enzyme activities of both cells. As compared with the immobilized cells entrapped in sodium alginate,the aggregation and cross linkage immobilized cells had a stronger power of decolorization, a higher activity of enzyme,a longer half lifetime and a more cost-effectiveness, and was simple to operate and easy to be applied on a full-scale.
出处
《环境科学》
CAS
CSSCI
CSCD
北大核心
1994年第5期49-52,共4页
Environmental Science
基金
山西省"八五"攻关项目
关键词
固定化细胞
活性艳红X-3B
废水处理
PSB
purple non- sulfur photosynthetic bacteria, immobilized cells, decolorizing enzyme,active bright red X-3B.
