摘要
通过比较研究不同包埋法制备的固定化颗粒的活性、降解氯酚性能、抗分解能力、传质性能、机械强度、制备成本、制备难易等方面,以期寻找最优质的包埋材料。结果表明:海藻酸钠添加粉末活性炭作为包埋材料时,固定化颗粒的各种性能最好。利用正交试验优化包埋条件,结果表明,最佳包埋条件为:粉末活性炭含量为1%,海藻酸钠含量为3%,包埋细菌生物量为0.5 g/10 g包埋材料。
Immobilization technology is one of the effective measures for application of microorganism in practical engineering and the embedding method of chlorophenols-contained wastewater treatment has good comprehensive properties with higher cell activity retention and viability and flexible application. In this paper, the properties of immobilized photosynthetic bacteria prepared by various embedded methods, chlorophenols degradation, resistance to decomposition capacity, mass transfer efficiency, mechanical strength, preparation cost, level of preparation difficulty, etc. were compared to find out the best embedded material. The result showed that all the properties of immobilized photosynthetic bacteria were the best when sodium alginate containing powdered activated carbon was selected as the embedded material. By use of orthogonal experiment for condition optimization, the result showed that the best embedding condition was that the content of powdered activated carbon and sodium alginate was 1% and 3% respectively, and the ratio of the concentration of embedded bacteria to the embedding material was 0.5 g/10 g.
出处
《环境保护科学》
CAS
2015年第5期118-122,共5页
Environmental Protection Science
关键词
光合细菌
生物降解
氯酚类化合物
固定化
Photosynthetic Bacteria
Biodegradation
Chlorophenols
Immobilization
