Research on the degradation of polymer-bearing oilfield wastewater by ultrasonic irradiation

doi:10.11894/1005-829x.2014.34(3).071

Abstract

Abstract:

Ultrasonic equipment has been used for treating polymer-bearng oilfield wastewater. The effects of power,reaction time,frequency and reaction temperature of ultrasonic irradiation on the viscosity and biodegradability of polymer-bearing wastewater have been studied. The experiment results show that the cavitation effect of ultrasonic irradiation can convert part of polymers,which are difficult to be degraded biochemically,into substances with small molecules which can be degraded easily,so as to greatly increase biodegradability indexes. The improvement of power is good for decreasing the viscosity of wastewater and increasing the biodegradability indexes. Its frequency has great effects on the biodegradability of wastewater. At low temperature,it is good for lowering the wastewater viscosity and increasing biodegradability indexes.

Key words: ultrasonic, polymer-bearing weastewater, oilfield wastewater

摘要：

采用超声处理装置对油田含聚污水进行了处理，研究了超声功率、超声作用时间、超声频率和超声处理温度对含聚污水黏度和可生化性的影响。试验结果表明，超声波的空化效果可以将一部分难生化降解的聚合物转化为黏度较低的易降解的小分子物质，污水的可生化指数大大提高。功率的提高有利于污水黏度的降低和可生化指数的提高；频率对污水的可生化性影响较大；在低温下有利于污水黏度的降低和可生化性指数的提高。

关键词: 超声波, 含聚污水, 油田污水

CLC Number:

X703.1

Liu Xinliang, Lin Aiguo, Yin Hailiang, Zhang Jian, Yang Jiangang. Research on the degradation of polymer-bearing oilfield wastewater by ultrasonic irradiation[J]. INDUSTRIAL WATER TREATMENT, 2014, 34(3): 71-74.

刘新亮, 蔺爱国, 尹海亮, 张菅, 杨建刚. 超声波降解含聚油田污水的研究[J]. 工业水处理, 2014, 34(3): 71-74.

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URL: https://www.iwt.cn/EN/10.11894/1005-829x.2014.34(3).071

https://www.iwt.cn/EN/Y2014/V34/I3/71

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