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Water resource utilization and wastewater zero discharge system for solar photo-thermal power station

A technology for photothermal power plants and wastewater treatment systems, applied in the directions of heating water/sewage treatment, irradiated water/sewage treatment, water/sewage treatment, etc., which can solve the cumbersome treatment process, failure to achieve zero discharge, land occupation and high investment costs, etc. problems, to achieve the effect of reducing concentration ratio, reducing processing links, saving floor area and input cost

Pending Publication Date: 2021-06-11
STATE GRID LIAONING ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Conventional power plant domestic sewage and industrial wastewater are transported to coal yards for spraying after treatment, or transported to nearby domestic sewage treatment plants, which may cause groundwater pollution or subsequent treatment costs, without realizing zero discharge in the true sense
[0005] At present, domestic tap water in power plants mostly uses municipal tap water, but solar-thermal power plants are often located in remote places without municipal tap water supply, and need to make domestic drinking water in the factory area. The existing circulating water in power plants is mostly a closed cycle. The existing circulating water treatment technology has cumbersome treatment process, high concentration ratio, high energy consumption, high land occupation and high investment cost

Method used

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Experimental program
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Effect test

Embodiment 1

[0031] Such as figure 1 As shown, solar photothermal power plant water utilization and wastewater zero system, including groundwater treatment system, circulating water treatment system, chemical water system, living sewage treatment system, industrial wastewater treatment system, high salt wastewater treatment system, evaporation crystallization Salt system. Among them, a schematic diagram of the groundwater treatment system figure 2 , A schematic diagram of the circulating water treatment system image 3 , Schematic diagram of chemical water systems See Figure 4 , The schematic diagram of the domestic sewage treatment system Figure 5 , Schematic diagram of industrial wastewater treatment system Figure 6 , Schematic diagram of high salt wastewater treatment system Figure 7 , Schematic diagram of evaporating crystalline salt system Figure 8 .

Embodiment 2

[0033] Such as figure 2 As shown, the groundwater processing system in such a system includes a groundwater storage pool, a multi-dielectric filter, a reverse osmotic filter, a reverse osmotic device, a living tank, a reverse osmotic device, a concentrated water exit and a high salt The buffer pool of the wastewater treatment system is connected.

Embodiment 3

[0035] Such as image 3 As shown, the circulating water treatment system of such a system includes a circulating water regulating pool, a mechanical ventump tower, a mechanical ventump tower, and water from the circulating water regulating pool, and then returns to the circulating water regulation from the mechanical ventilation tower. The pool, form a circular loop; the exit of the circulating water regulating pool is connected to the coagulation filter device of the chemical water system.

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Abstract

The invention discloses a water resource utilization and wastewater zero discharge system for a solar photo-thermal power station, and belongs to the technical field of wastewater treatment. A domestic sewage treatment system, an industrial wastewater treatment system, a circulating water treatment system and a chemical water production system are sequentially connected through pipelines, and the chemical water production system and an underground water treatment system are respectively connected with a high-salinity wastewater treatment system through pipelines. The high-salinity wastewater treatment system is respectively connected with an evaporative crystallization salt system and the circulating water treatment system through pipelines; and a circulating water adjusting tank is used for dosing water to treat. Circulating water and chemical water are adopted to jointly utilize urban sewage as a water source, the circulating water can be directly extracted from a circulating water reservoir during chemical water production after being treated, the concentration ratio of the circulating water can be reduced, circulating water treatment links can be reduced, the occupied area and the input cost can be saved, and after reverse osmosis concentrated water is treated, fresh water is recycled, concentrated water is crystallized into solid salt to be recycled, sludge is transported out after being treated, wastewater is recycled after being retreated, and wastewater zero discharge and water resource utilization are achieved.

Description

Technical field [0001] The present invention relates to a solar photothermal power plant wastewater zero emissions and water resource utilization systems, in particular to zero emissions treatment processes of RO concentrated water, domestic sewage and industrial wastewater, belong to the field of wastewater treatment. Background technique [0002] In recent years, the solar photothermal power station has gradually emerged in my country. It has more geographical locations in the remote area of ​​light, high-spirited, and uses groundwater as a drinking water source. Urban water is an industrial water source is a practical design. [0003] In order to meet environmental requirements, through the construction of the entire plant wastewater zero emission depth processing process, all the water structure optimization, RO concentrated water, domestic sewage and industrial wastewater can realize the purpose of water resources utilization and wastewater zero emissions. Thoroughly solve e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/001C02F1/441C02F1/5281C02F1/444C02F1/469C02F3/30C02F1/52C02F1/32C02F1/24C02F11/121C02F1/04C02F2301/08C02F2303/04
Inventor 周广吉叶振起魏来赵奕州林茂盛路军锋徐靖飞王震华
Owner STATE GRID LIAONING ELECTRIC POWER RES INST