丙烯酰胺生产废水的AM-4菌株处理工艺

Technological Process of AM-4 Strains for Acrylamide Wastewater Treatment

针对丙烯酰胺生产废水处理,分离得到的一株高效降解丙烯酰胺菌株AM-4,研究菌株培养时间、接种浓度、培养温度、溶解氧及碳源、氮源、磷源等因素对AM-4菌株降解丙烯酰胺的影响。将AM-4菌株用于实际生产废水处理,研究菌株和原有废水处理活性污泥进行组合的降解效果。组合方式如下:菌株接种到生产废水、原有活性污泥接种于生产废水以及原有活性污泥+菌株分别接种于生产废水。采用厌氧处理+SBR工艺,运行24 h后,单一菌株接种到生产废水,丙烯酰胺降解率达到91.4%,COD降解率达到87.2%,NH3-N降解率达到66.7%,出水的各项指标趋于稳定。

In view of the treatment of acrylamide production wastewater, an AM-4 strain with high efficiency degradation was isolated. The effects of strain culture time, inoculation concentration, culture temperature, dissolved oxygen and carbon source, nitrogen source and phosphorus source on the degradation of acrylamide by AM-4 strain were studied. The AM-4 strain was used in the actual production wastewater treatment, and degradation effect after the combination of the strain and activated sludge of original wastewater treatment was studied. The combination mode was as follows: the bacterial strain was inoculated to production wastewater, original activated sludge was inoculated to production wastewater, and original activated sludge + bacterial strain was inoculated to production wastewater, respectively. Anaerobic treatment + SBR system process was adopted. After the operation of 24 h, when a single strain was inoculated into production wastewater, degradation rate of acrylamide,CODCr and NH3-N reached 91.4%, 87.2% and 87.2% respectively. All indexes of effluent tended to be stable.