A full-scale study focused on the characteristics of the influent waste water in a middle-sized WWTP receiving only domestic sewage. The objective was to understand sewer transformations and their influence on the influent water quality in order to better control prefermentation and
BNR process. A correlation between sewer system conditions and the presence of readily biodegradable organic matter in the feed waste water was found. It was shown, that during warm water period biological oxidation of biodegradable material and nitrification of ammonia in the aerobic part
of the sewer network were responsible for decreasing the nutrient load to the treatment plant. A positive effect of the increased VFAs on the nitrogen and phosphorus removal could also be statistically confirmed. The study offered valuable information about the seasonal behavior of the sewer
network and allowed to build a strategy for maximizing the fermentation potential of the sewer system.
Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.