The research of the treatment of traditional Chinese medcine wastewater by MBR

Since the effluent from anaerobic reactor of traditional Chinese medicine has high COD and large fluctuate, we took the MBR reactor to treat them at the condition of HRT of 5 h. We investigated the relationship of influent COD, MLSS and COD removal. The results were show as follows: when HRT was 5 h and influent COD less than 3000 mg/L, the effluent COD was less than 30 mg/L which met the need of the standard of reclaimed water reuse; when the influent COD ranged from 3000 mg/L to 6000mg/L, then the effluent COD ranged from 30 mg/L to 100 mg/L which met the need of the sewage discharge standard; when the influent COD exceeded than 6000mg/L, the effluent COD exceeded 100 mg/L which didn´t met the need of sewage discharge standard. The relationship of MLSS and COD removal also indicated that the optimal MLSS should control at 7543 mg/L to got the maximum COD removal.