Progress in Study and Application of Waste Mud Disposal Technologies
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摘要: 废弃钻井液污染大、种类多、处理难,给水质和土壤环境带来巨大的负面影响,随着近些年环保法规的日益完善,对废弃钻井液的处理技术也提出了新要求。概述了9种不同处理方法及其发展现状,重点分析了固化法、热解吸法、化学强化固液分离法、不落地技术和多种技术联用等处理技术,并对几种现行的主流处理技术进行了对比,指出了各类方法的发展前景,得出多种技术联用具有较好的发展潜力。分析认为今后的研究方向与热点在于如何低能耗、高效率地实现对废弃钻井液的资源化处理,具体工作既要包含污染物的源头、过程和结果控制,也要加强管理和相关制度的建立,综合开发新技术。Abstract: Waste drilling fluids impose immense negative influence on water quality and soil because of their high pollution, diversity and difficulty in disposal. Application of more rigorous environmental protection regulations has imposed new requirements on the disposal of waste muds. This paper summarizes nine different methods of waste mud disposal and their development. Solidification method, thermal desorption method, chemically enhanced solid-liquid separation method, the so-called “waste mud producing while disposing”, and the integration of these technologies are emphasized in this paper, and several popular technologies are compared. The development trend of each technology is predicted and it is concluded that the integration of these technologies is of the most potential technology. The prospects of these technologies are presented based on the current policies and regulations as well as literature research. It is found that the future research work will be focused on the recycling of waste muds at low energy consumption and high efficiency. It is important to not only control the source of pollution, the processing of pollution and the result of waste mud treatment, but also reinforce management and establishment of working system, and develop new technologies.
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Key words:
- Waste mud /
- Disposal technology /
- Recycling /
- Technical outlook
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