CN215049465U - Water resource utilization and waste water zero discharge system of solar thermal power station - Google Patents
Water resource utilization and waste water zero discharge system of solar thermal power station Download PDFInfo
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- CN215049465U CN215049465U CN202023013002.4U CN202023013002U CN215049465U CN 215049465 U CN215049465 U CN 215049465U CN 202023013002 U CN202023013002 U CN 202023013002U CN 215049465 U CN215049465 U CN 215049465U
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Abstract
A solar photo-thermal power station water resource utilization and wastewater zero discharge system belongs to the technical field of wastewater treatment. The domestic sewage treatment system, the industrial wastewater treatment system, the circulating water treatment system and the chemical water production system are sequentially connected through pipelines, the chemical water production system and the underground water treatment system are respectively connected with the high-salinity wastewater treatment system through pipelines, and the high-salinity wastewater treatment system is respectively connected with the evaporative crystallized salt system and the circulating water treatment system through pipelines; and the circulating water regulating tank adds chemicals to the water. The utility model discloses a municipal sewage is the water source to circulating water and chemical system water utilization jointly, and the circulating water is through handling, can directly follow the extraction of circulating water cistern when chemical system water, can reduce the concentrated multiplying power of circulating water, reduces the circulating water treatment link, practices thrift area and input cost, and reverse osmosis's dense water is after handling, and fresh water recycle, dense water crystallization become solid salt and retrieve, transports outward after the sludge treatment, retrieves after the waste water retreatment, realizes waste water zero release and water resource utilization.
Description
Technical Field
The utility model relates to a solar energy light thermal power station waste water zero release and water resource utilization system especially relate to a RO dense water, domestic sewage and industrial waste water's zero release processing technology, belong to the waste water treatment field.
Background
In recent years, solar photo-thermal power stations are gradually emerging in China, the geographical positions of the solar photo-thermal power stations are mostly located in remote areas in the northwest where strong illumination and little rainfall are achieved, underground water is used as a drinking water source, and urban water is used as an industrial water source, so that a feasible design scheme is provided.
In order to meet the requirement of environmental protection, the water structure optimization of the whole plant is realized by constructing the wastewater zero discharge advanced treatment process of the whole plant, the purpose of water resource utilization of a power station and wastewater zero discharge can be realized by completely recycling RO concentrated water, domestic sewage and industrial wastewater, and the environmental protection problems of high-salinity wastewater, domestic sewage discharge and the like are thoroughly solved.
After being treated, the conventional domestic sewage and industrial wastewater of the power plant are conveyed to a coal yard for spraying or conveyed to a nearby domestic sewage treatment plant, so that underground water pollution or subsequent treatment cost can be caused, and zero emission in real sense is not realized.
At present, domestic water of a power plant mostly adopts municipal tap water, but a photo-thermal power station is often remote, no municipal tap water is supplied, domestic drinking water is needed to be made by the plant, the existing circulating water of the power plant is mostly closed circulation, and when the concentration rate reaches a high limit value, the water is discharged for treatment, the existing circulating water treatment technology is complex in treatment process, the concentration rate is high, the energy consumption is large, the occupied area is high, and the investment cost is high.
Therefore, research on a water resource utilization and wastewater zero discharge system of a whole plant is urgently needed, so that the water resource utilization is more efficient, the wastewater zero discharge in the real sense is realized, and the production operation can be carried out in an environment-friendly, stable and efficient manner.
Disclosure of Invention
The utility model aims to provide a zero discharge of waste water and water resource utilization system of a solar photo-thermal power station, which utilizes underground water to prepare drinking water for plant life by means of a fine sand filter and reverse osmosis equipment; urban reclaimed water is used as circulating water for supplementing water and is also used as an industrial water source; through step-by-step treatment, recycling and evaporative crystallization, zero discharge of wastewater and water resource utilization are really realized.
The utility model provides a technical scheme that its technical problem adopted is:
a solar photo-thermal power station water resource utilization and wastewater zero discharge system comprises a groundwater treatment system, a circulating water treatment system, a chemical water production system, a domestic sewage treatment system, an industrial wastewater treatment system, a high-salinity wastewater treatment system and an evaporative crystallization salt production system; the domestic sewage treatment system, the industrial wastewater treatment system, the circulating water treatment system and the chemical water production system are sequentially connected through pipelines, the chemical water production system and the underground water treatment system are respectively connected with the high-salinity wastewater treatment system through pipelines, and the high-salinity wastewater treatment system is respectively connected with the evaporative crystallized salt system and the circulating water treatment system through pipelines; the circulating water regulating tank adds the medicine to water and handles.
The underground water treatment system comprises an underground water reservoir, a multi-media filter, a reverse osmosis cartridge filter and a reverse osmosis device which are sequentially connected through pipelines, wherein a fresh water outlet of the reverse osmosis device is connected with a domestic water tank through a pipeline, and a concentrated water outlet is connected with a buffer pool of the high-salinity wastewater treatment system.
The circulating water treatment system comprises a circulating water adjusting tank and a circulating water cooling tower, wherein the outlet of the circulating water adjusting tank is respectively connected with the circulating water cooling tower and a coagulation filtering device of the chemical water production system, and the outlet of the circulating water cooling tower is connected with the inlet of the circulating water adjusting tank to form a circulating loop.
The chemical water production system comprises a coagulation filtering device, a self-cleaning filter, an ultrafiltration device, a primary reverse osmosis device, a secondary reverse osmosis device and an EDI device which are sequentially connected through pipelines, wherein a sludge outlet of the coagulation filtering device is connected with a sludge pond, the sludge pond is connected with a sludge dehydrator, a concentrated water outlet of the primary reverse osmosis device is connected with a buffer pond of a high salinity treatment system, concentrated water inlets of the secondary reverse osmosis device and the EDI device are respectively connected with a water inlet of the primary reverse osmosis, concentrated water outlets of the self-cleaning filter and the ultrafiltration device are respectively connected with an industrial wastewater reservoir, and the EDI is also called Electrodeionization in English and is also called continuous electric desalting technology.
The domestic sewage treatment system comprises a domestic sewage reservoir, an anaerobic tank, a primary oxidation tank, a secondary sedimentation tank, a disinfection tank and an ultraviolet disinfection device which are sequentially connected through pipelines.
The industrial wastewater treatment system comprises an industrial wastewater reservoir, an inclined tube sedimentation tank, an air flotation device, a middle water tank and a multi-media filter which are sequentially connected through pipelines, wherein a sludge outlet of the inclined tube sedimentation tank is connected with a sludge tank, and the sludge tank is connected with a sludge dewatering machine.
The high salinity wastewater treatment system comprises a buffer pool, a reaction tank, a concentration tank, a tubular microfiltration membrane device, a reverse osmosis device, a fresh water tank and a concentrated water tank which are sequentially connected through pipelines, wherein a sludge outlet of the concentration tank is connected with a sludge pool, the sludge pool is connected with a sludge dewatering machine, and a fresh water outlet of the reverse osmosis device is connected with an inlet of a circulating water regulating pool.
The evaporative crystallization salt making system comprises a high salinity concentrated water tank, an evaporative crystallization device, a centrifugal dehydrator, a drying device and a salt storage tank which are sequentially connected through pipelines, wherein a fresh water outlet of the evaporative crystallization device is connected with a buffer pool of the high salinity wastewater treatment system.
The water outlet of the domestic sewage treatment system is connected with the water inlet of the industrial wastewater reservoir.
The water outlet of the industrial wastewater treatment system is connected with the water inlet of the circulating water regulating tank.
Compared with the prior art, the beneficial effects of the utility model reside in that: adopt circulating water and chemical system water to utilize municipal sewage as the water source jointly, the circulating water is through adding medicine processing, when chemical system water needs water, directly extract from the circulating water cistern, can reduce the concentrated multiplying power of circulating water, can also reduce the circulating water treatment link, practice thrift area and input cost, reverse osmosis's dense water passes through high salt effluent disposal system and evaporation crystallization salt manufacturing system and handles the back, fresh water recycle, dense water crystallization becomes solid salt and retrieves, produced mud passes through sludge dewaterer and handles the back, solid sludge transports outward, retrieve after the waste water retreatment, finally realize whole factory waste water zero release and water resource utilization.
Drawings
The present invention will be further explained with reference to the drawings and examples
FIG. 1 is a schematic diagram of the water resource utilization and waste water zero discharge system of the solar thermal power station of the present invention;
FIG. 2 is a schematic view of a groundwater treatment system;
FIG. 3 is a schematic diagram of a circulating water treatment system;
FIG. 4 is a schematic diagram of a chemical water production system;
FIG. 5 is a schematic view of a domestic sewage treatment system;
FIG. 6 is a schematic diagram of an industrial wastewater treatment system;
FIG. 7 is a schematic diagram of a high salinity wastewater treatment system;
FIG. 8 is a schematic diagram of an evaporative crystallization salt production system.
Detailed Description
To facilitate understanding and implementing the present invention by those of ordinary skill in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments, which are used to illustrate the present invention and should not be construed as limited by the scope of the present invention.
Example 1
As shown in figure 1, the solar photo-thermal power station water resource utilization and wastewater zero discharge system comprises a groundwater treatment system, a circulating water treatment system, a chemical water production system, a domestic sewage treatment system, an industrial wastewater treatment system, a high-salinity wastewater treatment system and an evaporative crystallization salt production system. Wherein, the schematic diagram of the groundwater treatment system is shown in figure 2, the schematic diagram of the circulating water treatment system is shown in figure 3, the schematic diagram of the chemical water production system is shown in figure 4, the schematic diagram of the domestic sewage treatment system is shown in figure 5, the schematic diagram of the industrial wastewater treatment system is shown in figure 6, the schematic diagram of the high-salinity wastewater treatment system is shown in figure 7, and the schematic diagram of the evaporative crystallization salt production system is shown in figure 8.
Example 2
As shown in figure 2, the groundwater treatment system in the system comprises a groundwater reservoir, a multi-media filter, a reverse osmosis cartridge filter, a reverse osmosis device and a domestic water tank which are sequentially connected through pipelines, wherein a concentrated water outlet of the reverse osmosis device is connected with a buffer pool of the high salinity wastewater treatment system.
Example 3
As shown in fig. 3, the circulating water treatment system of this system includes a circulating water adjusting tank and a mechanical ventilation tower connected in sequence by pipelines, wherein water enters the mechanical ventilation tower from the circulating water adjusting tank and then returns to the circulating water adjusting tank from the mechanical ventilation tower to form a circulating loop; the outlet of the circulating water regulating tank is connected with a coagulation filtering device of the chemical water making system.
Example 4
As shown in fig. 4, the chemical water production system in the system comprises a coagulation sedimentation device, a self-cleaning filter, an ultrafiltration device, a primary reverse osmosis device, a secondary reverse osmosis device and an EDI device which are sequentially connected through pipelines, wherein a water outlet of the coagulation sedimentation device is connected with the self-cleaning filter, and a sludge outlet of the coagulation sedimentation device is connected with an industrial wastewater reservoir; the fresh water outlet of the ultrafiltration device is connected with the water inlet of the primary reverse osmosis device, and the concentrated water outlet of the ultrafiltration device is connected with the industrial wastewater reservoir; the fresh water outlet of the first-stage reverse osmosis device is connected with the water inlet of the second-stage reverse osmosis device, and the concentrated water outlet of the first-stage reverse osmosis device is connected with the buffer pool of the high-salinity wastewater treatment system; a fresh water outlet of the second-stage reverse osmosis device is connected with a water inlet of the EDI device, and a concentrated water outlet of the second-stage reverse osmosis device is connected with a water inlet of the first-stage reverse osmosis device; and a water outlet of the EDI device is conveyed to a thermodynamic system of the power station, and a concentrated water outlet of the EDI device is connected with a water inlet of the first-stage reverse osmosis.
Example 5
As shown in figure 5, the domestic sewage treatment system in the system comprises a domestic sewage reservoir, an anaerobic tank, a first-stage aeration oxidation tank, a second-stage sedimentation tank, a disinfection water tank and an ultraviolet disinfection device which are sequentially connected through pipelines, wherein the domestic sewage reservoir is connected with a water inlet of the anaerobic tank, a water outlet of the anaerobic tank is connected with a water inlet of the first-stage aeration oxidation tank, a water outlet of the first-stage aeration oxidation tank is connected with a water inlet of the second-stage aeration oxidation tank, a water outlet of the second-stage aeration oxidation tank is connected with a water inlet of the second-stage sedimentation tank, a water outlet of the second-stage sedimentation tank is connected with the disinfection water tank, and a sludge outlet of the second-stage sedimentation tank is connected with the first-stage aeration oxidation tank. The water outlet of the disinfection pool is connected with the water inlet of the ultraviolet disinfection device, and the water outlet of the ultraviolet disinfection device is connected with the industrial wastewater reservoir.
Example 6
As shown in fig. 6, the industrial wastewater treatment system in the system comprises an industrial wastewater reservoir, an inclined tube sedimentation tank, an air flotation device and a multi-media filter which are sequentially connected through pipelines, wherein the industrial wastewater reservoir is connected with a water inlet of the inclined tube sedimentation tank, a water outlet of the inclined tube sedimentation tank is connected with a water inlet of the air flotation device, a sludge port of the inclined tube sedimentation tank is connected with a sludge tank, a water outlet of the air flotation device is connected with a water inlet of the multi-media filter, and a water outlet of the multi-media filter is connected with a circulating water regulation tank.
Example 7
As shown in figure 7, the high salinity wastewater treatment system in the system comprises a buffer tank, a first-stage reaction tank, a second-stage reaction tank, a concentration tank, a tubular microfiltration membrane device, a first-stage reverse osmosis device and a second-stage reverse osmosis device which are sequentially connected through pipelines, wherein the buffer tank is connected with a water inlet of the first-stage reaction tank, water outlet of the first-stage reaction tank is connected with a water inlet of the second-stage reaction tank, and a water outlet of the second-stage reaction tank is connected with a water inlet of the concentration tank. The delivery port of the concentrated tank is connected with the water inlet of the tubular microfiltration membrane device, the sludge port of the concentrated tank is connected with the sludge tank, the delivery port of the tubular microfiltration membrane device is connected with the water inlet of the first-stage reverse osmosis device, the fresh water outlet of the first-stage reverse osmosis device is connected with the circulating water regulating reservoir, the concentrated water outlet of the first-stage reverse osmosis device is connected with the water inlet of the second-stage reverse osmosis device, the fresh water outlet of the second-stage reverse osmosis device is connected with the circulating water regulating reservoir, and the concentrated water outlet of the second-stage reverse osmosis device is connected with the evaporative crystallization salt production device.
Example 8
As shown in FIG. 8, the evaporative crystallization salt production system in this system comprises a high salinity concentrated water tank, an evaporative crystallization device, a centrifugal dehydrator, a drying device, and a salt storage tank, which are connected in sequence by pipelines.
Example 9
Underground water and urban reclaimed water are handled through the system of this embodiment, and underground water processing system's product water can satisfy the demand of whole factory domestic water, and circulating water processing system can satisfy the demand of whole factory's circulating water, and chemical water preparation system's product water can satisfy the demand of whole factory industrial water, and chemical water preparation system's second grade reverse osmosis unit's dense water and EDI device's dense water retrieve to one-level reverse osmosis unit's entry.
Example 10
The system of this embodiment is used for treating power station wastewater, domestic sewage of the whole plant enters the domestic sewage treatment system, effluent of the domestic sewage treatment system and industrial wastewater of the whole plant enter the industrial wastewater treatment system, sludge drainage of the whole plant enters the sludge tank to be treated by centrifugal sludge dewatering, reverse osmosis concentrated water of the domestic drinking water treatment system and primary reverse osmosis concentrated water of the chemical water production system enter the high-salinity wastewater treatment system, and concentrated water of the high-salinity wastewater treatment system enters the evaporative crystallization salt production system to be treated.
Through the utility model discloses a solar energy light and heat power station water resource utilization and waste water zero discharge system, whole factory has realized that the water resource high efficiency utilizes and the waste water zero release, has thoroughly solved the problem that light and heat power station water resource used and waste water discharge, has fabulous economic utility and environmental protection benefit.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A solar photo-thermal power station water resource utilization and wastewater zero discharge system is characterized by comprising a groundwater treatment system, a circulating water treatment system, a chemical water production system, a domestic sewage treatment system, an industrial wastewater treatment system, a high-salinity wastewater treatment system and an evaporative crystallization salt production system; the domestic sewage treatment system, the industrial wastewater treatment system, the circulating water treatment system and the chemical water production system are sequentially connected through pipelines, the chemical water production system and the underground water treatment system are respectively connected with the high-salinity wastewater treatment system through pipelines, and the high-salinity wastewater treatment system is respectively connected with the evaporative crystallized salt system and the circulating water treatment system through pipelines; the circulating water treatment system adds the medicine to water.
2. The system for utilizing water resources and zero discharging wastewater of a solar photo-thermal power station as claimed in claim 1, wherein the underground water treatment system comprises an underground water reservoir, a multi-media filter, a reverse osmosis cartridge filter and a reverse osmosis device which are sequentially connected through a pipeline, a fresh water outlet of the reverse osmosis device is connected with a domestic water tank through a pipeline, and a concentrated water outlet is connected with a buffer pool of the high salinity wastewater treatment system.
3. The system for utilizing water resources and zero discharging wastewater of a solar photo-thermal power station as claimed in claim 1, wherein the circulating water treatment system comprises a circulating water adjusting tank and a circulating water cooling tower, an outlet of the circulating water adjusting tank is respectively connected with the circulating water cooling tower and a coagulation filtering device of the chemical water production system, and an outlet of the circulating water cooling tower is connected with an inlet of the circulating water adjusting tank to form a circulating loop.
4. The system for utilizing water resources and zero discharging wastewater of a solar photo-thermal power station according to claim 1, wherein the chemical water production system comprises a coagulation filter device, a self-cleaning filter, an ultrafiltration device, a primary reverse osmosis device, a secondary reverse osmosis device and an EDI device which are sequentially connected through pipelines, a sludge outlet of the coagulation filter device is connected with a sludge pond, the sludge pond is connected with a sludge dewatering machine, a concentrated water outlet of the primary reverse osmosis device is connected with a buffer pond of the high salinity treatment system, concentrated water inlets of the secondary reverse osmosis device and the EDI device are respectively connected with a water inlet of the primary reverse osmosis device, and concentrated water outlets of the self-cleaning filter and the ultrafiltration device are respectively connected with an industrial wastewater reservoir.
5. The system for utilizing water resources and zero discharging wastewater of a solar photo-thermal power station as claimed in claim 1, wherein the domestic sewage treatment system comprises a domestic sewage reservoir, an anaerobic tank, a primary oxidation tank, a secondary sedimentation tank, a disinfection water tank and an ultraviolet disinfection device which are sequentially connected through pipelines.
6. The system for utilizing water resources and zero discharging wastewater of a solar photo-thermal power station according to claim 1, wherein the industrial wastewater treatment system comprises an industrial wastewater reservoir, an inclined tube sedimentation tank, an air flotation device, an intermediate water tank and a multi-media filter which are sequentially connected through pipelines, a sludge outlet of the inclined tube sedimentation tank is connected with a sludge tank, and the sludge tank is connected with a sludge dewatering machine.
7. The system for utilizing water resources and zero discharging wastewater of a solar photo-thermal power station according to claim 1, wherein the high salinity wastewater treatment system comprises a buffer tank, a reaction tank, a concentration tank, a tubular micro-filtration membrane device, a reverse osmosis device, a fresh water tank and a concentrated water tank which are sequentially connected through pipelines, a sludge outlet of the concentration tank is connected with a sludge tank, the sludge tank is connected with a sludge dewatering machine, and a fresh water outlet of the reverse osmosis device is connected with an inlet of a circulating water regulating tank.
8. The system for utilizing water resources and zero discharge of wastewater in a solar photo-thermal power station as claimed in claim 1, wherein the evaporative crystallization salt production system comprises a high salinity concentrated water tank, an evaporative crystallization device, a centrifugal dehydrator, a drying device and a salt storage tank which are sequentially connected through pipelines, and a fresh water outlet of the evaporative crystallization device is connected with a buffer pool of the high salinity wastewater treatment system.
9. The system for utilizing water resources and zero discharge of wastewater of solar photo-thermal power stations as claimed in claim 1, wherein the water outlet of the domestic sewage treatment system is connected with the water inlet of the industrial wastewater reservoir.
10. The system for utilizing water resources and zero discharging of wastewater of a solar photo-thermal power station as claimed in claim 1, wherein the water outlet of the industrial wastewater treatment system is connected with the water inlet of the circulating water regulating tank.
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| CN112939327A (en) * | 2020-12-15 | 2021-06-11 | 国网辽宁省电力有限公司电力科学研究院 | Water resource utilization and waste water zero discharge system of solar thermal power station |
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| CN112939327A (en) * | 2020-12-15 | 2021-06-11 | 国网辽宁省电力有限公司电力科学研究院 | Water resource utilization and waste water zero discharge system of solar thermal power station |
| CN112939327B (en) * | 2020-12-15 | 2024-09-10 | 国网辽宁省电力有限公司电力科学研究院 | Water resource utilization and wastewater zero-discharge system of solar photo-thermal power station |
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