海藻酸钠固定化包埋微生物处理有机微污染源水

Organic Micropolluted Source Water Treatment by Immobilized Cells

以黄浦江水为处理源水 ,将筛选出的菌种用海藻酸钠为载体进行固定化包埋 ;对间歇式处理体系中菌体浓度 ,处理温度以及起始 TOC浓度对有机物降解效果的影响进行实验 .结果表明 ,菌体浓度为 1 g/L～ 2 g/L,处理温度为 2 0℃时 ,包埋颗粒性状保持较好 ,对源水中起始浓度在 1 0 mg/L～ 1 5mg/L之间的 TOC具有 2 0 %～ 30 %的降解率 ;温度升高 ,明显缩短颗粒使用寿命 ;而菌体浓度增加对处理效果没有增强作用 .另外 ,以菌 TD2和 TD4包埋颗粒为例 ,测试发现经 48h处理 ,其对源水中浓度为53.4μg/L酚具有 90 %左右的降解率 .

Using granular immobilized cells(IMG)to treat organic micropolluted source water(OM water)was studied.On a comprehensive way,using IMG of 1～2g/L to treat OM water at 20±2℃ can remove TOC of 10～15mg/L by 20%～30%,and the IMG inoculated in OM water can sustain fairly well even till 6 th day.The further experimental results showed that as examples,the IMG of TD2 and TD4 can markedly degrade phenol of 53 4μg/L in OM water by 90% in 48h.