Effect of carbon source type on phosphorus removal efficiency of MBBR and characteristics of fluorescent substances in water

Abstract In this paper, Moving Bed Bioreactor (MBBR) reactor was used as the research object to explore effects of carbon source type on phosphorus removal performance MBBR system and changes microbial metabolic characteristics in typical cycles. The results showed that absorption release by sodium propionate starch were obvious. accumulation degradation PHA glycogen observed three reactors, prior decomposition. When acetate source, decreased during stationary phase, other two did not change significantly. intensity fluorescent substances varies greatly with source. effluent are mainly tyrosine-like protein-like substances, fulvic acid-like humic substances. Therefore, suitable should be selected according water treatment process improve efficiency.