Bath geothermal tail water combination treatment device

Abstract

The invention discloses a bath geothermal tail water combination treatment device. The bath geothermal tail water combination treatment device comprises a coagulation sedimentation system, a membranebioreactor, a membrane system A and a membrane system B, wherein the coagulation sedimentation system, the membrane bioreactor, the membrane system A and the membrane system B are sequentially connected in series to form a second first treatment branch which is used for treating tail water with the relatively low high COD content, and the coagulation sedimentation system, the membrane system A andthe membrane system B are sequentially connected in series to form a second treatment branch which is used for treating tail water with the relatively low COD content.. According to the combination treatment device, In in the treatment process of bath geothermal tail water through the combination treatment device, the content of total dissolved solids (TDS), fluoride, chloride, boron and the like in produced water are is decreased, and efficient reducing of bath geothermal tail water pollutants is achieved. The combination treatment device is novel and reasonable in design thought, simple,and reliable in use, and provides technical support for secondary utilization of the bath geothermal tail water.

Description

technical field [0001] The invention relates to the technical field of tail water treatment, in particular to a combined treatment device for bathing geothermal tail water. Background technique [0002] Geothermal energy is renewable thermal energy from deep within the earth, arising from the decay of the earth's molten magma and radioactive materials. The deep circulation of groundwater and the intrusion of magma from extreme depths into the earth's crust bring heat from the deep underground to the near surface. By digging geothermal wells, humans bring geothermal energy to the surface in the form of geothermal water or steam for utilization. [0003] Due to the differences in geothermal geology and hydrogeological conditions, in some places, the content of suspended matter in geothermal tail water is high (over 100mg / L), the chemical oxygen demand is greater than 20mg / L, and the total dissolved solids (TDS), chloride, and fluorine in water The contents of indicators such...

AI Technical Summary

Problems solved by technology

Such as direct discharge is likely to cause water pollution, crop growth damage and other environmental problems

Most water companies directly discharge the high-salinity bathing geothermal tail water into the municipal pipe network without separate treatment, which not only greatly increases the cost of tail water treatment, but also wastes a lot of water resources

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