Influence of anaerobic digestion process parameters on the amount of volatile fatty acids formed in wastewater

Abstract

The limiting indicator for the course of biological wastewater treatment is easily obtainable organic matter. If the wastewater entering the sewage treatment plant is depleted in terms of the content of easily accessible organic matter, then a set of measures aimed at their enrichment is required. Prefermentation of raw sludge was considered as a method of increasing the proportion of readily available organic matter. The influence of the main technological parameters of anaerobic digestion on the amount of volatile fatty acids formed was studied.

Keywords

• prefermentation
• acidification
• easily obtainable organic matter
• phosphorus removal
• wastewater treatment