To enhance nitrogen removal efficiency at low-temperature of the biochemical system in coal chemical wastewater treatment plant,a small-scale experiment was carried out on several nitrifying bacteria agents.The results showed that all kinds of bacteria agents had good synergistic treatment effect at low ammonia nitrogen concentration.Low-temperature nitrifying bacteria agents and chemical nitrifying bacteria agents were inhibited at high ammonia nitrogen concentration.Mixed nitrifying bacteria agents maintained good synergistic treatment effect at different ammonia nitrogen concentration.
关键词
菌剂/脱氮/煤化工污水
Key words
bacteria agents/denitrification/coal chemical wastewater
维普
万方数据