Abstract:

The paper gives some methods such as training aerobic granular sludge by anaerobic-aerobic interactive process, dealing with high concentration of ammonia nitrogen waste by mature aerobic granular sludge. The results show that aerobic aranular aludge have good biological activity the best condition is when Ammonia – Nitrogen concentration is more than 800mg/L、pH is around 8、DO concentration is around 2.0mg/L. Ammonia nitrogen and COD removal rate is above 80%.