Study on the selection and culture condition of efficient compound bacteria for wastewater treatment in HNS production

In this study,the attention was paid on the selection,compound and cultivation of special bacteria for wastewater in HNS production.The flocculating activity of bacterial culture for kaolin suspension to represent the flocculating ability was measured,that is,flocculating rate.The bacteria source was got from soil watered by HNS wastewater.Single colony with high flocculating rate was selected,acclimatized and pairwise compound.The culture condition of coliforms after compound with high flocculating rate was studied.Through expriments,it was learned that the compound coliform of microbial strain No.3 and No.13 represented a higher flocculating rate,which could be an efficient compound bacteria for wastewater treatment in HNS production.Meanwhile,the results showed that the optimum culture condition was: general culture medium,initiative pH=5.0,amylum as the carbon source and peptone as the nitrogen source.In a degree,this article also provided contribution to the application of identifying this flora in future and processing the HNS wastewater in large scale with microbial degradation.