CN103086523A - Energy-saving type treatment system for power plant circulating water with high condensation ratio by using reclaimed water as water source - Google Patents
Energy-saving type treatment system for power plant circulating water with high condensation ratio by using reclaimed water as water source Download PDFInfo
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- CN103086523A CN103086523A CN2011103312622A CN201110331262A CN103086523A CN 103086523 A CN103086523 A CN 103086523A CN 2011103312622 A CN2011103312622 A CN 2011103312622A CN 201110331262 A CN201110331262 A CN 201110331262A CN 103086523 A CN103086523 A CN 103086523A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 143
- 230000005494 condensation Effects 0.000 title abstract 3
- 238000009833 condensation Methods 0.000 title abstract 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 15
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 15
- 239000004571 lime Substances 0.000 claims abstract description 15
- 239000004572 hydraulic lime Substances 0.000 claims abstract description 10
- 230000003068 static effect Effects 0.000 claims description 29
- 238000005352 clarification Methods 0.000 claims description 25
- 238000011001 backwashing Methods 0.000 claims description 21
- 230000000844 anti-bacterial effect Effects 0.000 claims description 15
- 239000003899 bactericide agent Substances 0.000 claims description 15
- 239000000701 coagulant Substances 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 10
- 238000000151 deposition Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 5
- 230000023556 desulfurization Effects 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 2
- 235000020681 well water Nutrition 0.000 claims 1
- 239000002349 well water Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 16
- 239000002351 wastewater Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000010802 sludge Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000004155 Chlorine dioxide Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000019398 chlorine dioxide Nutrition 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- VTEIFHQUZWABDE-UHFFFAOYSA-N 2-(2,5-dimethoxy-4-methylphenyl)-2-methoxyethanamine Chemical compound COC(CN)C1=CC(OC)=C(C)C=C1OC VTEIFHQUZWABDE-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to an energy-saving type treatment system for power plant circulating water with high condensation ratio by using reclaimed water as water source. The treatment system is characterized by comprising an urban reclaimed water make-up water lime softening treatment system and a circulating water by-pass flow lime softening treatment system which are arranged separately and are for standby to each other. With the above technical solution, the urban reclaimed water make-up water lime softening treatment system and the circulating water by-pass flow lime softening treatment system are integrated together organically. The process combines the functions of softening, removing suspended materials, removing organic materials and the like together, has the advantages of subtraction treatment for water salt, zero water discharge of the system operations and the like, with a condensation ratio reaching 6 times or higher, meeting the design requirement of zero water discharge of the power plant wastewater.
Description
Technical Field
The invention relates to a high concentration ratio treatment system for circulating water of a power plant, in particular to a passive energy-saving emission-reducing high concentration ratio treatment process for circulating water of a power plant, which takes urban reclaimed water as a water source.
Background
With the implementation of the national power industry water policy (modified energy No. 2004) of encouraging the use of urban reclaimed water, limiting the use of surface water and forbidding the use of underground water, northern thermal power plants mostly use urban reclaimed water as a supplementary water source. The urban recycled water has large annual fluctuation range of the content of each ion, contains pollutants such as ammonia nitrogen, phosphorus, BOD, COD and the like, and has the risks of generating corrosion, scaling and microorganism slime when being used for circulating water of a power plant. Due to the influence of the traditional concept and the improper treatment process, the reviewing units only agree that the concentration ratio of a circulating water system of a large-scale thermal power plant taking urban reclaimed water as a water source is designed to be less than 3.5 times, and great difficulty is brought to the realization of zero discharge of waste water of the power plant and project approval.
The traditional power plant taking urban reclaimed water as a water source only sets an urban reclaimed water supplementing water lime softening treatment process, can not solve the problems of corrosion, scaling, microorganism slime, suspended matters and the like generated in the circulating concentration process of the treated urban reclaimed water, can not effectively improve the concentration ratio, has the operation concentration ratio of 3.5 times or less, and needs 547t/h of a plurality of pairs of externally discharged circulating water of the plant; the traditional treatment process is provided with 2-stage lifting, wherein an urban reclaimed water incoming water pool, an urban reclaimed water incoming water lifting pump, an urban reclaimed water treated water outlet pool and an urban reclaimed water treated water outlet lifting pump are respectively arranged, and the power load of the 2-stage lifting is 568 kW/h; the traditional treatment process is provided with a clarification tank sludge discharge and slurry tank and a slurry delivery pump, and the power load is 60 kW/h; the traditional treatment process is provided with a sludge dewatering machine, a matched electric mud bucket, a dewatering agent dosing device and a slurry transport vehicle, the dewatered mud cake is sent to an ash factory to be buried, and the electric load is 153kWh (the data are estimated by taking a 2 x 600MW unit as a reference). Therefore, the traditional treatment process has the defects of high energy consumption, high investment, large occupied area, high operating cost, low circulating water concentration rate and the like, and does not conform to the national industrial policy of energy conservation and emission reduction.
Disclosure of Invention
The purpose of the invention is: by adopting the advanced passive and energy-saving emission-reducing design concept, a brand-new power plant circulating water treatment system taking urban reclaimed water as a water source is designed, the functions of low energy consumption, low investment, small occupied area, low operating cost, high circulating water concentration rate and the like are realized, and the system becomes a real passive energy-saving emission-reducing power plant circulating water high-concentration rate treatment system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the system consists of an urban reclaimed water supplementing water lime softening treatment system and a circulating water by-pass flow lime softening treatment system, wherein two system devices are separately arranged and are mutually standby; wherein,
the urban reclaimed water replenishing water lime softening treatment system comprises a static pipeline mixer I, a bactericide generating and adding device I and a coagulant storing and adding device I, wherein the bactericide generating and adding device I and the coagulant storing and adding device I are connected with the static pipeline mixer I; the output port of the static pipeline mixer I is connected with a clarification tank I, and the clarification tank I is connected with a lime storage and metering device I; the output port of the clarification tank I is connected with a labyrinth mixing and distributing tank I, and the labyrinth mixing and distributing tank I is connected with a pH regulator storage and feeding device I; the output port of the labyrinth mixing and distributing groove I is connected with a filter I; a small part of effluent output by the filter I enters a filter backwashing water tank, and most of the effluent directly enters a circulating water forebay after passing through a bactericide generating and adding device and a scale and corrosion inhibitor adding device;
the circulating water by-pass flow lime softening treatment system comprises a static pipeline mixer II, a bactericide generating and feeding device II and a coagulant storing and feeding device II, wherein the bactericide generating and feeding device II and the coagulant storing and feeding device II are connected with the static pipeline mixer II; the output port of the clarification tank II is connected with a labyrinth mixing and distributing tank II, and the labyrinth mixing and distributing tank II is connected with a pH regulator storage and feeding device II; and the output port of the labyrinth mixing distribution groove II is connected with a filter II, and the water outlet of the filter II directly enters a circulating water forebay.
Mud of row of depositing reservoir I and depositing reservoir II directly gets into the concentration tank, and mud after the concentration is carried the pump to send to power plant's flue gas desulfurization system slurry case by the concentration tank mud of row.
And the filter I and the filter II are connected with a recovery water tank, and water in the recovery water tank is conveyed to the static pipeline mixer I by a recovery water pump.
And the outlet water of the filter backwashing water tank is conveyed to the filter I and the filter II by a filter backwashing water pump, backwashing is carried out when the pressure difference or the operation flow reaches a set value, and air for backwashing comes from the filter to backwash the Roots blower.
And a communication valve which is mutually standby is arranged between the static pipeline mixer I and the static pipeline mixer II.
The invention adopting the technical scheme has the following advantages:
(1) the urban reclaimed water supplementing water lime softening treatment system and the circulating water by-pass flow lime softening treatment system are organically integrated in one treatment process for the first time, the process integrates softening, suspended matter removing, organic matter removing and other functions, has the advantages of 'subtraction' treatment of water salinity and 'water zero discharge' of system operation, and the like, has concentration multiplying power of 6 times or more, and meets the design requirement of power plant wastewater zero discharge.
(2) The nuclear power AP1000 passive design concept is applied to the design of a circulating water treatment process of a power plant taking urban reclaimed water as a water source for the first time, the incoming water pressure and the circulating water return pressure of the urban sewage treatment plant are fully utilized, and zero artificial fossil energy consumption of a main process flow of side circulating water treatment of the power plant taking the urban reclaimed water as the water source is realized for the first time.
(3) The nuclear power AP1000 passive design concept is applied to the design of a circulating water treatment process of a power plant taking urban reclaimed water as a water source for the first time, the height difference between the water level of a sludge contact separation type clarification tank and the water level of a concentration tank is fully utilized, and zero artificial fossil energy consumption of a sludge discharge flow of a side circulating water treatment clarification tank of the power plant taking urban reclaimed water as a water source is realized for the first time.
(4) The clarification tank slurry after the concentration of the concentration tank is conveyed to a slurry tank of a flue gas desulfurization system of a power plant for the first time and is used as a desulfurization raw material, so that the sludge discharge recycling of the clarification tank is realized. The traditional sludge dewatering machine, the matched electric mud bucket, the dewatering agent dosing device, the slurry transport vehicle and other processes and related electric control equipment are eliminated, and the occupied area is saved by about 160m2The capital investment is saved by about 800 ten thousand yuan, and the annual operating cost is saved by more than 400 ten thousand yuan.
(5) Energy conservation: adopts a passive design concept, saves energy by 628kW/h and is annualCan be 345.4 multiplied by 104kW (5500 hours of annual operation in a 2X 600MW power plant).
(6) Emission reduction: reducing 547t/h of externally discharged circulating water of power plant, and annual reduction by 300.8 multiplied by 104t/h (operating hours 5500h in a 2 x 600MW power plant per year), reduces the outward discharge of the mud of the clarification tank by the power plant, and realizes the recycling of the circulating sewage and the mud discharged by the clarification tank.
Therefore, the invention fundamentally changes the process flow and the composition of the treatment of the circulating water of the power plant by taking the urban reclaimed water as a water source, realizes low energy consumption, low investment, small occupied area, low operating cost and high circulating water concentration rate, has obvious energy-saving, environment-friendly and economic benefits, and is suitable for large-scale engineering application.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
As shown in figure 1, the system consists of a municipal reclaimed water replenishing water lime softening treatment system and a circulating water bypass flow lime softening treatment system, wherein the two systems are separately arranged and are mutually standby.
The urban reclaimed water replenishing water lime softening treatment system comprises a static pipeline mixer I1 a, a bactericide generating and adding device I10 a and a coagulant storing and adding device I11 a, wherein the bactericide generating and adding device I10 a and the coagulant storing and adding device I11 a are connected with the static pipeline mixer; the output port of the static pipeline mixer I1 a is connected with a clarification tank I2 a, and the clarification tank I2 a is connected with a lime storage and metering device I12 a; the output port of the clarification tank I2 a is connected with a labyrinth mixing and distributing tank I17 a, and the labyrinth mixing and distributing tank I17 a is connected with a pH regulator storage and feeding device I13 a; the output port of the labyrinth mixing and distributing groove I17 a is connected with a filter I3 a; a small part of effluent output by the filter I3 a enters a filter backwashing water tank 4, and most of the effluent directly enters a circulating water forebay after passing through a bactericide generating and adding device 10 and a scale and corrosion inhibitor adding device 14.
The circulating water by-pass flow lime softening treatment system comprises a static pipeline mixer II 1b, a bactericide generating and adding device II 10b and a coagulant storing and adding device II 11b which are connected with the static pipeline mixer II 1b, wherein the output port of the static pipeline mixer II 1b is connected with a clarification tank II 2b, and the clarification tank II 2b is connected with a lime storing and metering device II 12 b; the output port of the clarification tank II 2b is connected with a maze mixing and distributing tank II 17b, and the maze mixing and distributing tank II 17b is connected with a pH regulator storage and feeding device II 13 b; the output port of the second labyrinth mixing and distributing groove II 17b is connected with a filter II 3b, and the water discharged from the filter II 3b directly enters a circulating water forebay.
A communication valve 16 is provided between the static pipeline mixer I1 a and the static pipeline mixer II 1b as a backup. The static pipeline mixer is of an existing structure, the static pipeline mixer is not made of steel, the inner wall of the static pipeline mixer is anticorrosive, and the designed flow speed is 1 m/s.
The clarification tank I2 a and II 2b are of the existing structure, are sludge contact separation type clarification tanks and mainly comprise a first reaction chamber, a second reaction chamber, a separation chamber, a stirrer, a mud scraper, a water collecting tank, a bridge truss for supporting a mechanical device, a mud discharging device, a sampling device, an automatic control device and the like, and all the parts except the tank wall and the tank bottom are made of steel except reinforced concrete. The structure of the tank body is a straight-tube and flat-bottom structure, and the ascending flow velocity of the separation zone is 0.6-1.2 mm/s. Mud of row of depositing reservoir I2 a and depositing reservoir II 2b directly gets into concentration tank 6, and mud after the concentration is arranged mud delivery pump 7 by the concentration tank and is sent to power plant's flue gas desulfurization system slurry case. The concentration tank 6 is a steel gravity concentration tank, and the designed ascending flow speed is not more than 0.8 m/h. The mud-discharging conveying pump 7 of the concentration tank is a wear-resistant slurry pump, and the two are both of the existing structure.
Filter I3 a and filter II 3b are connected with recovery pond 8, and the water in recovery pond 8 is carried to static pipeline mixer I1 a by recovery water pump 9. The filter I3 a and the filter II 3b are both carbon steel welded gravity filters, and are of the existing structure, the design pressure of the gravity type carbon steel welded gravity filter is 0.20Mpa, the design filtering speed of the gravity type carbon steel welded gravity filter is 8m/h, the height of a filtering layer is 800mm, and the backwashing mode is water washing, water vapor combination washing and water washing; the recovery water tank 8 is of an underground reinforced concrete structure, and the volume of the water tank meets the requirements of backwashing drainage of a single filter and drainage of miscellaneous system; the recovery water pump 9 is a sealless vertical self-priming pump.
And the outlet water of the filter backwashing water tank 4 is conveyed to the filter I3 a and the filter II 3b by a filter backwashing water pump 5, backwashing is carried out when the pressure difference or the running flow reaches a set value, and backwashing gas is used for backwashing the Roots blower 18 from the filter. The filter backwashing water tank is of an overground reinforced concrete structure, and the volume of the water tank meets the requirements of backwashing water quantity of a single filter and the running water consumption of a system.
The labyrinth mixing distribution grooves 17a and 17b are of reinforced concrete structure and existing structure, the flow rate is designed to be 0.8m/s, and water is submerged from the upper part.
The lime storing and metering devices 12a and 12b are dry storing, dry or wet metering devices, the stored medicament is slaked lime powder with purity of more than 85%, and the added medicament is calcium hydroxide solution.
The bactericide generating and adding devices 10a and 10b are comprehensive chlorine dioxide generating devices, and the added medicament is chlorine dioxide.
The coagulant storage and feeding devices 11a and 11b feed a chemical agent which is polymeric ferric sulfate.
The agent added by the pH regulator storage and adding devices 13b and 13b is concentrated sulfuric acid.
Claims (5)
1. The utility model provides an energy-saving power plant circulating water high concentration rate processing system who uses well water as water source which characterized in that: the system consists of an urban reclaimed water supplementing water lime softening treatment system and a circulating water by-pass flow lime softening treatment system, wherein two system devices are separately arranged and are mutually standby; wherein,
the urban reclaimed water replenishing water lime softening treatment system comprises a static pipeline mixer I (1 a), a bactericide generating and adding device I (10 a) and a coagulant storing and adding device I (11 a), wherein the bactericide generating and adding device I (10 a) and the coagulant storing and adding device I (11 a) are connected with the static pipeline mixer I; the output port of the static pipeline mixer I (1 a) is connected with a clarification tank I (2 a), and the clarification tank I (2 a) is connected with a lime storage and metering device I (12 a); the output port of the clarification tank I (2 a) is connected with a maze mixing and distributing groove I (17 a), and the maze mixing and distributing groove I (17 a) is connected with a pH regulator storage and feeding device I (13 a); the output port of the labyrinth mixing and distributing groove I (17 a) is connected with a filter I (3 a); a small part of effluent output by the filter I (3 a) enters a filter backwashing water tank (4), and most of the effluent directly enters a circulating water forebay after passing through a bactericide generating and adding device (10) and a scale and corrosion inhibitor adding device (14);
the circulating water by-pass flow lime softening treatment system comprises a static pipeline mixer II (1 b), a bactericide generating and adding device II (10 b) and a coagulant storing and adding device II (11 b), wherein the bactericide generating and adding device II (10 b) and the coagulant storing and adding device II (11 b) are connected with the static pipeline mixer II (1 b), the output port of the static pipeline mixer II (1 b) is connected with a clarification tank II (2 b), and the clarification tank II (2 b) is connected with a lime storing and metering device II (12 b); the output port of the clarification tank II (2 b) is connected with a maze mixing and distributing groove II (17 b), and the maze mixing and distributing groove II (17 b) is connected with a pH regulator storage and feeding device II (13 b); and the output port of the labyrinth mixing distribution groove II (17 b) is connected with a filter II (3 b), and the water discharged from the filter II (3 b) directly enters a circulating water forebay.
2. The energy-saving power plant circulating water high-concentration-ratio treatment system taking reclaimed water as a water source according to claim 1, characterized in that: mud of row of depositing reservoir I (2 a) and depositing reservoir II (2 b) directly gets into concentrated pond (6), and mud after the concentration is sent to power plant's flue gas desulfurization system slurry case by concentrated pond mud discharge delivery pump (7).
3. The energy-saving power plant circulating water high-concentration-ratio treatment system taking reclaimed water as a water source according to claim 1, characterized in that: the filter I (3 a) and the filter II (3 b) are connected with a recovery water tank (8), and water in the recovery water tank (8) is conveyed to the static pipeline mixer I (1 a) through a recovery water pump (9).
4. The energy-saving power plant circulating water high-concentration-ratio treatment system taking reclaimed water as a water source according to claim 1, characterized in that: the outlet water of the filter backwashing water tank (4) is conveyed to the filter I (3 a) and the filter II (3 b) by a filter backwashing water pump (5), backwashing is carried out when the pressure difference or the operation flow reaches a set value, and the gas for backwashing comes from a filter backwashing Roots blower (18).
5. The energy-saving power plant circulating water high-concentration-ratio treatment system taking reclaimed water as a water source according to claim 1, characterized in that: a communication valve (16) is arranged between the static pipeline mixer I (1 a) and the static pipeline mixer II (1 b) for mutual standby.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110331262.2A CN103086523B (en) | 2011-10-27 | 2011-10-27 | Energy-saving type treatment system for power plant circulating water with high condensation ratio by using reclaimed water as water source |
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| CN201110331262.2A CN103086523B (en) | 2011-10-27 | 2011-10-27 | Energy-saving type treatment system for power plant circulating water with high condensation ratio by using reclaimed water as water source |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0957066A1 (en) * | 1998-03-24 | 1999-11-17 | Maitron Chemiefreie Wasserbehandlung G.M.B.H. | Process for precipitating or flocculating substances from solutions |
| CN101215052A (en) * | 2007-12-28 | 2008-07-09 | 张大群 | Technique and device for treating sewage to reclaimed water |
| CN201512441U (en) * | 2009-09-30 | 2010-06-23 | 张大群 | Equipment for treating sewage into reclaimed water |
| CN101891330A (en) * | 2010-07-23 | 2010-11-24 | 深圳市能源环保有限公司 | Power plant wastewater treatment system and method |
-
2011
- 2011-10-27 CN CN201110331262.2A patent/CN103086523B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0957066A1 (en) * | 1998-03-24 | 1999-11-17 | Maitron Chemiefreie Wasserbehandlung G.M.B.H. | Process for precipitating or flocculating substances from solutions |
| CN101215052A (en) * | 2007-12-28 | 2008-07-09 | 张大群 | Technique and device for treating sewage to reclaimed water |
| CN201512441U (en) * | 2009-09-30 | 2010-06-23 | 张大群 | Equipment for treating sewage into reclaimed water |
| CN101891330A (en) * | 2010-07-23 | 2010-11-24 | 深圳市能源环保有限公司 | Power plant wastewater treatment system and method |
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Effective date of registration: 20180112 Address after: 451450 Henan province Zhengzhou city Zhongmu Green Bo Cultural Industrial Park No. 9 Patentee after: China Electric Power Construction Group Huazhong Electric Power Design Research Institute Co., Ltd. Address before: 450007 Zhengzhou Zhongyuan Road, Henan, No. 212 Patentee before: Hennan Electric Power Survey & Design Institute |
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