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Technologies for the Comprehensive Exploitation of the Geothermal Resources of the North Caucasus Region

机译：北高加索地区地热资源综合开发技术

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AbstractTechnology for the integrated development of low-temperature geothermal resources using the thermal and water potentials for various purposes is proposed. The heat of the thermal waters is utilized in a low-temperature district heating system and for heating the water in a hot water supply system. The water cooled in heat exchangers enters a chemical treatment system where it is conditioned into potable water quality and then forwarded to the household and potable water supply system. Efficient technologies for removal of arsenic and organic contaminants from the water have been developed. For the uninterrupted supply of the consumers with power, the technologies that use two and more types of renewable energy sources (RESs) have the best prospects. Technology for processing organic waste using the geothermal energy has been proposed. According to this technology, the geothermal water is divided into two flows, one of which is delivered to a biomass conversion system and the other is directed to a geothermal steam-gas power plant (GSGP). The wastewater arrives at the pump station from which it is pumped back into the bed. Upon drying, the biogas from the conversion system is delivered into the combustion chamber of a gas-turbine plant (GTP). The heat of the turbine exhaust gases is used in the GSGP to evaporate and reheat the low-boiling working medium. The working medium is heated in the GSGP to the evaporation temperature using the heat of the thermal water. High-temperature geothermal brines are the most promising for the comprehensive processing. According to the proposed technology, the heat energy of the brines is utilized to generate the electric power at a binary geothermal power station; the electric power is then used to extract the dissolved chemical components from the rest of the brine. The comprehensive utilization of high-temperature brines of the East-Precaucasian Artesian Basin will allow to completely satisfy the demand of Russia for lithium carbonate and sodium chloride.
机译：提出了 Abstract 利用多种热能和水势综合开发低温地热资源的技术。热水的热量用于低温区域供热系统中，并在热水供应系统中加热水。在热交换器中冷却的水进入化学处理系统，在该系统中将其调节为饮用水质量，然后转发到家用和饮用水供应系统。已经开发了用于从水中去除砷和有机污染物的有效技术。为了不间断地为用户供电，使用两种或更多类型可再生能源（RES）的技术具有最佳前景。已经提出了利用地热能处理有机废物的技术。根据这项技术，地热水分为两股，其中一股被输送到生物质转化系统，另一股被导向地热蒸汽-燃气发电厂（GSGP）。废水到达泵站，从那里被泵回到床中。干燥后，来自转化系统的沼气被输送到燃气轮机工厂（GTP）的燃烧室中。 GSGP中使用涡轮机废气的热量蒸发和重新加热低沸点工作介质。使用热水的热量将工作介质在GSGP中加热到蒸发温度。高温地热盐水是最有前途的综合处理方法。根据所提出的技术，利用盐水的热能在二元地热发电站发电。然后使用电力从其余盐水中提取溶解的化学成分。东高加索自流盆地高温盐水的综合利用将完全满足俄罗斯对碳酸锂和氯化钠的需求。

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