Abstract: By means of studying the changes of growth curves and COD of different bacterium agents in the target wastewater,a kind of dominant bacterium agents has been screened out. The results show that No. 1 bacterium agent purchased is the dominant salt-tolerant bacterium agent. The optimum inoculation concentration is 15%(volume fraction). No. 1 bacterium agent should be added to the reactor according to the optimum inoculation concentration,when the influent COD is 2 500 mg/L,and salinity 8 000 mg/L,compared with the control group,the COD treatment effect is obvious. After the salinity has been suddenly increased to 10 000 mg/L,the effluent COD change is stable. After a short adaptation to the new environment,the effluent COD tends to be as stable as the salinity before the improvement.

Key words: high salinity wastewater, salt-tolerant bacterium agent, dominant bacterium agent

摘要： 通过研究不同菌剂在目标废水中的生长曲线及COD的变化，筛选优势菌剂。结果显示，所购买的1号菌剂为优势耐盐菌剂，其最佳接种量（以体积分数计）为15%。将该菌剂按最佳接种量加入到反应器中，当进水COD为2 500 mg/L，盐度为8 000 mg/L时，对比对照组，COD处理效果明显；当盐度突然提高到10 000 mg/L时，出水COD变化稳定，待短暂适应新环境后，出水COD又趋于盐度提高前的稳定状态。

关键词: 高盐废水, 耐盐菌剂, 优势菌剂

CLC Number: 

• X703.1