投加复合耐冷菌提高低温生活污水处理效果的实验研究

Study on domestic sewage treatment by seeding combined psychrotrophs bacterium

寒冷地区冬季漫长,生活污水生物处理效果差一直是个难以解决的问题,从微生物学角度投加耐冷复合菌群于低温 ( 10℃以下 )污水中,在水温为 4 ~6℃,原水水质化学需氧量为343 8mg·L-1,氨氮为 21 0mg·L-1,总磷含量 6 2mg·L-1的条件下,能使CODcr得到很好的去除,并能以营养物质的形式吸收一定的NH3 -N和TP。

In cold area, there is always a problem to treat low-temperature sewage in winter by bio-treatment technology. By adding the cold-adapted mixed microbes to low-temperature (below 10℃) sewage:the concentration of chemical oxygen demand can be decreased sharply under the following low wastewater conditions: 343.8mg·L^(-1) chemical oxygen demand, 21.0mg·L^(-1) ammonia nitrogen, 6.2mg·L^(-1) total phosphorus and 4~6℃ water temperature.At the same time the ammonia nitrogen and the total phosphorus can be absorbed by the combined psychrotrophs bacterium as nutriment mode.