CN116161718A - Large-scale thermal power plant wastewater zero release dynamic management system - Google Patents
Large-scale thermal power plant wastewater zero release dynamic management system Download PDFInfo
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- 239000002351 wastewater Substances 0.000 title claims abstract description 138
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 217
- 230000001105 regulatory effect Effects 0.000 claims abstract description 53
- 239000010865 sewage Substances 0.000 claims abstract description 53
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 32
- 238000004064 recycling Methods 0.000 claims abstract description 22
- 238000004062 sedimentation Methods 0.000 claims description 38
- 239000010802 sludge Substances 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 22
- 239000003245 coal Substances 0.000 claims description 18
- 239000008235 industrial water Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000011010 flushing procedure Methods 0.000 claims description 15
- 230000001502 supplementing effect Effects 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 12
- 238000006477 desulfuration reaction Methods 0.000 claims description 11
- 230000023556 desulfurization Effects 0.000 claims description 11
- 239000010840 domestic wastewater Substances 0.000 claims description 11
- 239000006228 supernatant Substances 0.000 claims description 10
- 239000010842 industrial wastewater Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims 2
- 239000010908 plant waste Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 208000028659 discharge Diseases 0.000 description 38
- 238000005406 washing Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a waste water zero-emission dynamic management system of a large-scale thermal power plant, which belongs to the technical field of waste water management systems of thermal power plants and comprises a waste water treatment system, a raw water pretreatment system, a clear water drainage system and other sewage and waste water systems, wherein the waste water treatment system, the raw water pretreatment system, the clear water drainage system and the other sewage and waste water systems are all connected with an external waste water emission treatment and recycling system, a regulation system is built, the reuse rate of water is improved by adopting a step water consumption method according to the water quality requirements of all water equipment, the production quantity of waste water is reduced, the water dynamic balance of the waste water zero-emission target of the whole power plant is induced based on the water quantity dynamic balance principle, water is regulated at the water consumption side, the waste water which can not be consumed is stored temporarily through the regulation means of the regulation system, the waste water emission is reduced through the source side regulation, and the zero-emission dynamic management of the waste water is realized.
Description
Technical Field
The invention relates to a dynamic management system for zero discharge of waste water of a large-scale thermal power plant, and belongs to the technical field of waste water management systems of thermal power plants.
Background
In the power plant, more water is used, also can produce great amount of waste water, especially to large-scale thermal power plant, can produce more waste water when carrying out the operation, according to the waste water zero release target of power plant, confirm the most reasonable water flow and the best waste water treatment mode, under the prerequisite that satisfies the different water needs of power plant, rationally coordinate the power plant water, improve the reuse rate of water from water system overall angle, the water saving reduces water consumption and water pollution, furthest's reduction dirty waste water discharge.
The publication number is: CN111596621A is an intelligent water service on-line monitoring, controlling and managing system of a thermal power plant, which comprises a comprehensive display module, a dynamic water balance module, a water quantity statistics module, an equipment diagnosis module, a water quality analysis module, an early warning management module, a comprehensive standard comparison module and a chemical supervision module, and can display and monitor the water service condition of the whole plant on line in real time, master the water balance condition of the whole plant and all subsystems, the water condition of a unit, the water consumption condition of each water service system, the running condition of water equipment, the water quality condition of the plant and the excellent water condition of each unit according to the control and managing system, and control and regulate the water service system within a reasonable range. The invention realizes intelligent diagnosis of reverse osmosis pollution blocking degree of the chemical water treatment system, and intelligent and stable control of the concentration ratio of circulating water.
In the prior art, the power plant wastewater zero discharge thought focuses on the completely economical wastewater zero discharge firstly, namely, whole plant wastewater is sent to each process water system for timely digestion after being subjected to brief treatment (or no treatment) so that the wastewater is not discharged; the scheme can meet all the requirements under ideal working conditions, most of the conditions have wastewater discharge under actual working conditions, the wastewater discharge is often not practical, and as environmental standards become stricter, a newly built power plant is basically not adopted when the scheme is considered.
Secondly, the semi-economical waste water zero release thought is that except the 'uneconomical' method that desulfurization waste water adopts advanced treatment equipment with high cost, other types of waste water are sent to each process water system for timely digestion after being treated (or not treated) briefly, so that the waste water is not discharged.
And the uneconomical wastewater zero discharge is realized, namely all the wastewater is treated by adopting advanced treatment equipment with high manufacturing cost and then is sent to each process water system for timely consumption, so that the wastewater is not discharged.
In fact, the above-mentioned several waste water zero discharge ideas are all adopted in the design, but have a common disadvantage, namely, the waste water zero discharge under the single working condition under the design working condition is all the single working condition, if the operation and maintenance management is improper, the waste water zero discharge under all working conditions can not be realized, and because the water process systems under the design working condition are basically all in the full load or high load running state, the working condition can realize the goal of the complete zero discharge of the waste water; when the system is actually operated, all process systems are in a variable working condition operation state at all times, equipment is often in a non-full load or low load operation state, at the moment, the water consumption of all process systems is greatly reduced compared with that of the designed working condition, and the waste water discharge amount of the whole factory is still in a large flow, so that the waste water production imbalance state is caused, a large amount of waste water can not be consumed under the working condition, and when no special comprehensive waste water zero discharge management exists, as the information mastered by operation and maintenance personnel is relatively not systematic, the available regulation and storage means and control means are few and not timely, and waste water which can not be consumed by the process systems can only be discharged to a rainwater system by adopting overflow, so that waste water is discharged.
Disclosure of Invention
The invention aims to solve the problems and provide a wastewater zero-emission dynamic management system of a large-scale thermal power plant, which adopts cascade water, improves the reuse rate of water, reduces the production of wastewater, summarizes the water quantity dynamic balance management of the wastewater zero-emission target of the whole plant of the power plant, and establishes the wastewater zero-emission dynamic management system of the power plant.
The invention realizes the aim through the following technical scheme, the wastewater zero-emission dynamic management system of a large-scale thermal power plant comprises a wastewater treatment system, a raw water pretreatment system, a clear water drainage system and other sewage wastewater systems, wherein the wastewater treatment system, the raw water pretreatment system, the clear water drainage system and the other sewage wastewater systems are all connected with an external wastewater emission source, a regulation system is built in the wastewater treatment system, the raw water pretreatment system, the clear water drainage system and the other sewage wastewater systems, the regulation system carries out buffer treatment on wastewater to realize real-time dynamic management of the wastewater, the regulation system comprises a reuse water tank, a cooling tower water supplementing, a sludge drainage regulating tank, a drainage regulating tank, an industrial water tank, a precipitation and rainwater regulating tank and a domestic sewage reuse water tank, the recycling water tank, the cooling tower water supplementing is positioned in the wastewater treatment system, the sludge discharging adjusting tank and the water discharging adjusting tank are positioned in the raw water pretreatment system, the industrial water tank is positioned in the clean water discharging system, the sedimentation and rainwater adjusting tank and the domestic sewage recycling water tank are positioned in the other sewage and wastewater systems, when the wastewater treatment system, the raw water pretreatment system, the clean water discharging system and the other sewage and wastewater systems are operated, sewage and wastewater discharged from the source side are treated, when the wastewater treatment system is operated, the sewage and wastewater discharged from the source side is treated, the sewage and wastewater discharged from the source side are regulated and stored by adopting the regulating and storing system, the sewage and wastewater treatment system comprises a recycling water tank, a cooling tower water supplementing tank, a sludge discharging adjusting tank, a water discharging adjusting tank, an industrial water tank, a sedimentation and rainwater adjusting tank and a domestic sewage recycling water tank, when more sewage and wastewater discharged from the source side is treated, after the treatment is completed, the sewage and wastewater discharged from the source side is regulated and stored by the regulating and storing system, temporary storage is carried out on redundant water, when the sewage and the wastewater discharged from the source side are small, the water side is used for utilizing the water stored in the storage regulating system, so that the water quantity dynamic balance is achieved, the situation that the sewage is discharged more when the water consumption is small is avoided, the sewage is discharged, the largest possible consumption of the treated wastewater is realized, the wastewater decrement discharge is realized, the wastewater zero-discharge dynamic management is realized, and the zero-discharge target is realized.
Preferably, in order to facilitate treatment of industrial wastewater and desulfurization wastewater and make-up water to a cooling tower during recycling, the wastewater treatment system is used for treating industrial wastewater and desulfurization wastewater, and after treatment of industrial wastewater, the wastewater is discharged into the reuse water tank in the regulation and storage system, after treatment, desulfurization wastewater reaches zero discharge treatment, the wastewater is discharged into the cooling tower to make-up water for the cooling tower, and water in the reuse water tank is used for humidifying and flushing an ash system, and after humidifying and flushing the ash system, the wastewater is discharged into the precipitation and rainwater regulating tank in other sewage and wastewater systems for subsequent use, and during use, the wastewater after treatment of industrial wastewater is temporarily stored by adopting the reuse water tank, and during humidifying and flushing the ash system, water in the reuse water tank is used, after treatment of desulfurization wastewater, the wastewater is discharged into the cooling tower to make-up water for temporary storage, and during use of the cooling tower.
Preferably, in order to be convenient for store reaction sedimentation tank mud water and filtering pond backwash drainage, and handle and utilize, former pretreatment of water system is discharged reaction sedimentation tank mud water into the inside of mud disposal equalizing basin, stores, and is discharging filtering pond backwash drainage into the inside of drainage equalizing basin is kept in after the water in the mud disposal equalizing basin is handled through mud enrichment system, and the supernatant is retrieved to the inside of outside reaction sedimentation tank and is recycled, just in the aquatic of drainage equalizing basin inside, the supernatant is also retrieved to the inside of reaction sedimentation tank, through mud disposal equalizing basin with the drainage equalizing basin is kept in mud water and backwash drainage, just mud and water separation is carried out through mud concentration system to the mud equalizing basin, and the inside of the reaction sedimentation tank of upper strata is retrieved to the supernatant of outside is recycled, just the inside supernatant of drainage equalizing basin is also together refluxed to the inside of outside reaction sedimentation tank and is utilized.
Preferably, in order to drain clear water, the clear water tank overflow water and cooling tower drain water are recovered, and the tank overflow water is discharged into the interior of the drain adjusting tank, the cooling tower drain water is discharged into the interior of the industrial water tank and is temporarily stored in the interior of the industrial water tank, the industrial water tank plays a buffering adjusting effect, the redundant water overflow in the industrial water tank is discharged into the interior of the drain adjusting tank, the tank overflow water and water in the industrial water tank can be directly utilized, and the water is discharged into the interior of the drain adjusting tank and is recovered to the reaction sedimentation tank, and the clear water utilization effect is achieved after treatment.
Preferably, in order to facilitate the utilization of other wastewater, other sewage systems handle coal-containing wastewater and domestic sewage, and contain the coal wastewater and discharge into the inside of deposit and rainwater equalizing basin, domestic sewage is discharged after carrying out purification treatment through domestic sewage treatment equipment the inside of domestic sewage retrieval and utilization pond in wastewater treatment system, the inside water of retrieval and utilization pond is discharged after passing through ash system humidifying and flushing to the inside of deposit and rainwater equalizing basin, just the inside water of deposit and rainwater equalizing basin is used for outside landing stage washing and coal yard spraying after carrying out purification treatment through containing coal wastewater treatment equipment, and the water reflux that the landing stage washed and coal yard sprayed to the inside of deposit and rainwater equalizing basin, and the inside water of domestic sewage retrieval and utilization pond also is used for washing the landing stage and coal yard spraying, when using, the inside water of deposit and rainwater equalizing basin adopts the inside water that contains coal wastewater and system humidifying and washes, and is used for after carrying out treatment through containing coal treatment equipment, just the landing stage washing and the inside water that the landing stage washed and the inside water that the landing stage sprayed and the inside is used for the inside of landing stage, and the inside of landing stage washed and the circulating water and the inside the landing stage is used for carrying out the circulation after the sewage and the landing stage and the sewage is sprayed and the inside the landing stage and the circulating water and the landing stage.
The beneficial effects of the invention are as follows: according to the water quality requirements of all water using equipment, a step water using method is adopted, the reuse rate of water is improved, the production amount of wastewater is reduced, the water dynamic balance of the wastewater zero discharge target of the whole plant of the power plant is induced based on the water dynamic balance principle, water is adjusted at the water using side, the wastewater which is processed as much as possible is consumed is realized, the wastewater which cannot be consumed is temporarily stored through the regulation and storage means of the regulation and storage system, the wastewater decrement discharge is realized through the regulation at the source side, the wastewater zero discharge dynamic management is realized, and the zero discharge target is realized.
Drawings
Fig. 1 is an overall schematic of the present invention.
FIG. 2 is a schematic diagram of a regulation system according to the present invention.
In the figure: 1. a wastewater treatment system; 2. a raw water pretreatment system; 3. a clear water drainage system; 4. other sewage and wastewater systems; 5. a recycling pool; 6. supplementing water to the cooling tower; 7. a mud discharging adjusting tank; 8. a drainage adjusting tank; 9. an industrial pool; 10. sedimentation and a rainwater regulating tank; 11. a domestic sewage recycling pool.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, a dynamic wastewater zero-emission management system for a large thermal power plant comprises a wastewater treatment system 1, a raw water pretreatment system 2, a clear water drainage system 3 and other sewage wastewater systems 4, wherein the wastewater treatment system 1, the raw water pretreatment system 2, the clear water drainage system 3 and the other sewage wastewater systems 4 are all connected with an external wastewater emission source, a regulation system is established in the wastewater treatment system 1, the raw water pretreatment system 2, the clear water drainage system 3 and the other sewage wastewater systems 4, the regulation system carries out buffer treatment on wastewater to achieve real-time dynamic wastewater management, the regulation system comprises a recycling water tank 5, a cooling tower water supplementing 6, a sludge discharging regulating tank 7, a water discharging regulating tank 8, an industrial water tank 9, a sedimentation and rainwater regulating tank 10 and a domestic sewage recycling water tank 11, the recycling water tank 5 and the cooling tower water supplementing 6 are positioned in the wastewater treatment system 1, the sludge discharge regulating tank 7 and the water discharge regulating tank 8 are positioned in the raw water pretreatment system 2, the industrial water tank 9 is positioned in the clear water drainage system 3, the sedimentation and rainwater regulating tank 10 and the domestic sewage recycling water tank 11 are positioned in the other sewage and wastewater systems 4, in operation, sewage and wastewater discharged from the source side is treated through the sewage treatment system 1, the raw water pretreatment system 2, the clear water drainage system 3 and the other sewage and wastewater systems 4, in treatment, the sludge discharge regulating tank 7, the water discharge regulating tank 8, the industrial water tank 9, the sedimentation and rainwater regulating tank 10 and the domestic sewage recycling water tank 11 are regulated and stored through adopting the regulation and storage system when the sewage and wastewater discharged from the source side is more, further, after the treatment is finished, the redundant water is temporarily stored through the regulation and storage system, and when the sewage and wastewater discharged from the source side is less, the water side is used for utilizing the water stored in the regulating and storing system, so that the water quantity dynamic balance is achieved, the phenomenon that sewage is discharged when the sewage is discharged more and the water consumption is less is avoided, the largest possible consumption of the treated wastewater is realized, the wastewater decrement discharge is realized, the wastewater zero-discharge dynamic management is realized, and the zero-discharge target is realized.
As shown in fig. 1, the wastewater treatment system 1 is used for treating industrial wastewater and desulfurization wastewater, and after the industrial wastewater is treated, the wastewater is discharged into a reuse water tank 5 in a regulation and storage system, after the desulfurization wastewater is treated, the wastewater reaches zero discharge treatment, the wastewater is discharged into a cooling tower water supplementing 6, cooling tower water supplementing is carried out, water in the reuse water tank 5 is used for humidifying and flushing a clinker system, and after humidifying and flushing the clinker system, the wastewater is discharged into a precipitation and rainwater regulating tank 10 in other sewage wastewater systems 4 for subsequent use, and when the wastewater is used, the water after the industrial wastewater is temporarily stored by adopting the reuse water tank 5, and when the clinker system is humidifying and flushing the clinker system, the water in the reuse water tank 5 is used, and after the desulfurization wastewater is treated, the wastewater is discharged into the cooling tower water supplementing 6 for use.
As shown in fig. 1, in the raw water pretreatment system 2, the sludge water discharged from the reaction sedimentation tank is discharged into the sludge discharge regulating tank 7 for storage, and the backwash water discharged from the filter tank is discharged into the sludge discharge regulating tank 8 for temporary storage, after the water in the sludge discharge regulating tank 7 is treated by the sludge concentration system, the supernatant is recovered into the external reaction sedimentation tank for reuse, and in the water in the sludge discharge regulating tank 8, the supernatant is also recovered into the reaction sedimentation tank, the sludge water discharged from the reaction sedimentation tank and the backwash water from the filter tank are temporarily stored through the sludge discharge regulating tank 7 and the sludge discharge regulating tank 8, and the sludge water is separated from the sludge discharge regulating tank 7 by the sludge concentration system, and the supernatant on the upper layer is recovered into the external reaction sedimentation tank for reuse, and the supernatant in the sludge discharge regulating tank 8 is also returned into the external reaction sedimentation tank for reuse.
As shown in fig. 1, the overflow water of the water tank in the clean water drainage system 3 is discharged into the drainage regulating tank 8, the cooling tower is discharged into the industrial water tank 9, temporary storage is carried out in the industrial water tank 9, the industrial water tank 9 has a buffering regulating effect, the overflow water in the industrial water tank 9 is discharged into the drainage regulating tank 8, the overflow water of the water tank and the water in the industrial water tank 9 can be directly utilized and discharged into the drainage regulating tank 8, and the overflow water is recycled into an external reaction sedimentation tank for treatment, thereby achieving the clean water utilization effect.
As shown in fig. 1, other sewage and wastewater systems 4 treat coal-containing wastewater and domestic wastewater, and the coal-containing wastewater is discharged into the interior of a sedimentation and rainwater regulating tank 10, after the domestic wastewater is purified by a domestic wastewater treatment device, the domestic wastewater is discharged into the interior of a domestic wastewater recycling water tank 11, in a wastewater treatment system 1, after the water in the interior of the recycling water tank 5 is subjected to humidity adjustment and flushing by an ash system, the water in the interior of the sedimentation and rainwater regulating tank 10 is discharged into the interior of the sedimentation and rainwater regulating tank 10, after the water in the interior of the sedimentation and rainwater regulating tank 10 is purified by the coal-containing wastewater treatment device, the water after the water in the interior of the sedimentation and rainwater regulating tank 10 is returned to the interior of the sedimentation and rainwater regulating tank 10, and the water in the interior of the domestic wastewater recycling water tank 11 is also used for flushing and spraying the sedimentation and rainwater regulating tank 11, and the wastewater after the water in the interior of the sedimentation and rainwater regulating tank 10 is recycled by the coal-containing wastewater treatment device, and the sewage after the sewage is recycled by the sedimentation and wastewater is discharged into the interior of the wastewater regulating tank 11 after the sedimentation and the wastewater is recycled by the wastewater treatment device.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. A large-scale thermal power plant waste water zero release dynamic management system which characterized in that: including waste water treatment system (1), former pretreatment of water system (2), clear water drainage system (3) and other dirty waste water system (4), just waste water treatment system (1) former pretreatment of water system (2) clear water drainage system (3) with other dirty waste water system (4) all are connected with outside waste water emission treatment and recycling system, and waste water treatment system (1) former pretreatment of water system (2) clear water drainage system (3) with establish regulation system in other dirty waste water system (4), regulation system carries out buffer treatment to waste water, reaches waste water real-time dynamic management.
2. The system for dynamically managing zero emission of waste water in a large thermal power plant according to claim 1, wherein: the regulation and storage system comprises a reuse water tank (5), a cooling tower water supplementing tank (6), a mud discharging regulating tank (7), a water discharging regulating tank (8), an industrial water tank (9), a precipitation and rainwater regulating tank (10) and a domestic sewage reuse water tank (11).
3. The system for dynamically managing zero emission of waste water in a large thermal power plant according to claim 2, wherein: the recycling water tank (5) and the cooling tower water supplementing tank (6) are located in the wastewater treatment system (1), the sludge discharge adjusting tank (7) and the water discharge adjusting tank (8) are located in the raw water pretreatment system (2), the industrial water tank (9) is located in the clear water drainage system (3), and the sedimentation and rainwater adjusting tank (10) and the domestic wastewater recycling water tank (11) are located in the other sewage and wastewater systems (4).
4. A large thermal power plant wastewater zero release dynamic management system according to claim 3 and wherein: the wastewater treatment system (1) is used for treating industrial wastewater and desulfurization wastewater, the industrial wastewater is discharged into the reuse water tank (5) in the regulation and storage system after being treated, the desulfurization wastewater is discharged into the cooling tower water supplementing (6) after reaching the reuse standard after being treated, the cooling tower water supplementing is carried out, the zero emission of the desulfurization wastewater is realized, the water in the reuse water tank (5) is used for humidifying and flushing the ash and slag system, and the water is discharged into the precipitation and rainwater regulating tank (10) in the other sewage and wastewater systems (4) for subsequent use after humidifying and flushing the ash and slag system.
5. The system for dynamically managing zero wastewater discharge of a large thermal power plant according to claim 4, wherein: the sludge water discharged from the reaction sedimentation tank in the raw water pretreatment system (2) is discharged into the sludge discharge regulating tank (7) for storage, and backwash water discharged from the filter tank is discharged into the water discharge regulating tank (8) for temporary storage.
6. The system for dynamically managing zero wastewater discharge of a large thermal power plant according to claim 5, wherein: after the water in the sludge discharge regulating tank (7) is treated by the sludge concentration system, the supernatant is recycled to the inside of an external reaction sedimentation tank for reuse, and in the water discharge regulating tank (8), the supernatant is also recycled to the inside of the reaction sedimentation tank.
7. The system for dynamically managing zero wastewater discharge of a large thermal power plant according to claim 6, wherein: clear water drainage system (3) pond overflow water is discharged to the inside of drainage equalizing basin (8), and cooling tower drainage is discharged to the inside of industry pond (9), and is in the inside of industry pond (9) is kept in, industry pond (9) play buffering regulation effect, will the inside unnecessary water overflow of industry pond (9) is discharged to the inside of drainage equalizing basin (8).
8. The system for dynamically managing zero wastewater discharge of a large thermal power plant according to claim 7, wherein: the other sewage and wastewater systems (4) treat coal-containing wastewater and domestic wastewater, the coal-containing wastewater is discharged into the sedimentation and rainwater regulating tank (10), and the domestic wastewater is discharged into the domestic wastewater recycling water tank (11) after being purified by the domestic wastewater treatment equipment.
9. The system for dynamically managing zero wastewater discharge of a large thermal power plant according to claim 8, wherein: in the wastewater treatment system (1), water inside the recycling water tank (5) is discharged into the sedimentation and rainwater adjusting tank (10) after being subjected to humidity adjustment and flushing through the ash system, and water inside the sedimentation and rainwater adjusting tank (10) is subjected to purification treatment through wastewater treatment equipment containing coal and is used for external trestle flushing and coal yard spraying, water after trestle flushing and coal yard spraying flows back to the sedimentation and rainwater adjusting tank (10), and water in the domestic sewage recycling water tank (11) is used for flushing trestle and coal yard spraying.
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| KR101355866B1 (en) * | 2013-08-06 | 2014-01-28 | (주)한국주조기계 | Smart wastewater reusing system using rainwater and graywater |
| CN105712526A (en) * | 2015-05-28 | 2016-06-29 | 中机国能电力工程有限公司 | Muddy water recycling technology for water purification station of thermal power plant |
| CN105502746A (en) * | 2016-01-20 | 2016-04-20 | 华能国际电力股份有限公司 | Low-speed decarburization-nanofiltration combined softening treatment system and method for circulating cooling water of thermal power plant |
| CN105527915A (en) * | 2016-02-05 | 2016-04-27 | 浙江浙能技术研究院有限公司 | Thermal power plant real-time water affair monitoring system and monitoring method |
| CN109457754A (en) * | 2018-12-05 | 2019-03-12 | 北京朗新明环保科技有限公司 | Thermal power plant's water island shelf structure based on intelligent water utilities |
| CN110342714A (en) * | 2019-07-04 | 2019-10-18 | 华电电力科学研究院有限公司 | A kind of coal-burning power plant's process without drainage of waste water system and method based on semi-dry desulphurization technology |
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