I am investigating the sulfides removal from the anaerobic digestion of domestic sewage in a UASB reactor. Interestingly the sulfide fraction in the influent of the experimental station was higher than the sulfate fraction. I expected in the raw sewage that oxidized form was the predominant fraction of sulfur. Trying to understand this particular characteristic, the sewers that feed the experimental station (EXTRABES) came in pipelines not properly designed where not all the sand arrived at the centralized WWTP. I observed that the interceptor maintains about 0.20 m of sand which is favorable place for sulfate reducing bacteria (BRS), so I suppose that the sulphtogenesis should be occurring. So, I would like to know if my hypothesis make sense, if it is a good justification to argue the great concentration of sulphide in raw sewage?

More José Tavares Sousa's questions See All
Similar questions and discussions