期刊论文

The immobilization of Pseudomonas flava WD-3 and its application in SBR for sewage treatment

Tang, M.

中文

环境科学学报

0253-2468

2016

36

5

1639-1647

10.13671/j.hjkxxb.2015.0660

国家林业局引进国际先进科学技术项目（No.2012-4-73）； 山东省自然科学基金（No.ZR2013EEQ009）~~；

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由南四湖底泥中分离纯化出一株低温菌Pseudomonas flava WD-3,为提高其处理污水的效率并实现重复利用,本试验选取在低温(6 ~ 8 ℃)条件下,采用天然材料海藻酸钠(SA)和人工合成材料聚乙烯醇(PVA)共同作用的复合材料为包埋载体,利用正交试验探索其最优的固定化条件; 并将最优的Pseudomonas flava WD-3固定化小球投入到SBR污水处理工艺中,探究其投加量和水力停留时间对生活污水处理效果的影响. 结果发现,当SA质量分数为4%,PVA质量分数为6%,CaCl_2质量分数为5%,交联时间为24 h时,Pseudomonas flava WD-3固定化小球的物理性能最好,且对污水的处理效果最佳,分别是游离菌对COD、TP和NH_4~+ -N去除效率的...

Pseudomonas flava WD-3 is an efficient psychrotrophic bacterium which was isolated and purified from the sediment of Nansi Lake. Composite material sodium alginate(SA)-polyvinyl alcohol(PVA) was selected as embedding medium, and orthogonal experiment was conducted in sequencing batch reactor (SBR) for wastewater treatment under 6~8 ℃.Results show that the optimal immobilization conditions were: sodium alginate concentration of 4%, polyvinyl alcohol concentration of 6%, calcium chloride concentration of 5%, and cross-linking time for 24 h. Comp...