«Environmental protection in oil and gas complex»

Results of full-scale long-term studies of the impact of recycled drilling wastewater on soil, growth and development of crops. P. 1

UDC: 502.62+502.6:622.276.5
DOI: 10.33285/2411-7013-2023-1(310)-42-49

Authors:

¹ Scientific Research Institute Federal Research Centre for Projects Evaluation and Consulting Services, Moscow, Russia

Keywords: drilling wastewater, wastewater disposal, legal basis for the use of wastewater for irrigation, field studies, removal of heavy metals by plants

Annotation:

The reuse of wastewater for technical purposes in the process of drilling oil and gas wells only partially reduces the volume of water consumption. One of the most promising options for solving the problem of dehydration of the contents of earthen drilling waste reservoirs is the disposal of drilling wastewater by using it for irrigation. The experience of using wastewater for irrigation of agricultural crops is given as a promising direction for their disposal in foreign countries and the Russian Federation. It is shown that three tasks are solved during irrigation with wastewater: removal and purification of polluted waters containing organic substances and biogenic elements; their use in the fields for artificial soil moistening; the introduction of a large amount of mineral, organic and bacterial fertilizers into the soil. The legal basis for the use of wastewater for irrigation in the Russian Federation is analyzed. Attention is drawn to the inconsistencies in the legislative acts and regulations on the topic under consideration, which are mainly aimed not at the flexible use of wastewater for irrigation, which makes it possible to reduce their discharge into water bodies, increase the yield of grown fodder crops, but on prohibitive measures for the disposal of wastewater. The results of full-scale long-term studies of the impact of recycled drilling wastewater on the soil, growth and development of crops are presented.

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