The description of water consumption in the production of citric acid. The main indicators of wastewater are described and the use of methane fermentation is recommended for their purification. Studies have shown the possibility of obtaining a significant amount of biogas (9 dm3/ dm3), which is characterized by high methane content (up to 80 %).
The description of wastewater generated at livestock complexes is given. Due to the high concentration of pollutants, it is advisable to use methane fermentation. The process temperature is 45 ° C. Studies have shown the possibility of producing a significant amount of biogas characterized by high methane content (up to 80%). Active sludge contains B vitamins, other biologically active substances, which makes it possible to use it as a feed additive or fertilizer.
