Abstract:

To compare with other industrial sewage, the oil-refinery wastewater is characterized by large discharging volume, many impurities, and difficult to be degraded. The treatment efficiency is not obvious when it is treated with common activated sludge, and is difficult to meet the present requirements of the existing equipment of regenerated water. Under the permitted local conditions, the contrast experiment has been conducted with two sets of independent wastewater treatment equipment, applying the bioaugmentation technology to treat the oil-refinery wastewater. In the process, the indexes of the intake and outlet COD are analysed, and the bioaugmentation effect on the reinforcement effect and mechanismof the treatment capacity of the original system has been studied. The result indicates that, adding bioaugmentation fungus can strengthen the load capacity of the system, reinforce the treatment capacity and efficiency of the reactor, improve the sludge activity and reduce the volume of residual sludge.

Key words: oil-refinery wastewater, actived sludge, bioaugmentation technology, bioaugmentation fungus

摘要：

炼油废水和其他工业污水相比具有排量大、杂质多、难降解等特点, 用普通活性污泥方法处理效果不明显, 很难满足现有中水回用设施的进水要求。利用两套独立的污水处理装置, 对比试验了采用与不采用生物增效技术的活性污泥系统处理炼油废水的效果, 通过对进出水COD等指标的分析, 研究了生物增效技术对原有系统处理能力的强化机理。结果表明, 投加生物增效菌种, 可以增强系统负荷能力, 提高反应器的处理能力和效果, 改善污泥活性, 减少剩余污泥量等。

关键词: 炼油废水, 活性污泥, 生物增效技术, 生物增效菌种

CLC Number: 

• X703.1