CN110885115A - Processing method and system for improving quality of circulating water of main machine - Google Patents
Processing method and system for improving quality of circulating water of main machine Download PDFInfo
- Publication number
- CN110885115A CN110885115A CN201911149409.9A CN201911149409A CN110885115A CN 110885115 A CN110885115 A CN 110885115A CN 201911149409 A CN201911149409 A CN 201911149409A CN 110885115 A CN110885115 A CN 110885115A
- Authority
- CN
- China
- Prior art keywords
- water
- circulating water
- condenser
- circulating
- adsorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 196
- 238000003672 processing method Methods 0.000 title claims abstract description 4
- 238000001179 sorption measurement Methods 0.000 claims abstract description 66
- 239000000126 substance Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 150000002500 ions Chemical class 0.000 claims abstract description 12
- 239000002351 wastewater Substances 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 239000008213 purified water Substances 0.000 claims abstract description 7
- 230000008929 regeneration Effects 0.000 claims description 11
- 238000011069 regeneration method Methods 0.000 claims description 11
- 238000002242 deionisation method Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000003795 desorption Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims 2
- 238000001816 cooling Methods 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000011033 desalting Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- -1 aluminum ions Chemical class 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4691—Capacitive deionisation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to a processing method and a system for improving the quality of circulating water of a main machine, wherein the method comprises the following steps: and leading one path of circulating water to an electric adsorption device on a connecting pipeline from a circulating water pump to a radiator, removing impurity ions in the circulating water through the electric adsorption device, and enabling the purified water to enter a condenser and enter a circulating water system. The system comprises a circulating water pump, a condenser, a radiator, electric adsorption equipment, an underground water tank and a chemical water treatment unit, wherein the condenser is connected to the radiator through the circulating water pump, the radiator is connected to the condenser, one path of an outlet of the circulating water pump is connected to the electric adsorption equipment, a purified water outlet of the electric adsorption equipment is connected to the condenser, a waste water outlet of the electric adsorption equipment is connected with the underground water tank, and the underground water tank is connected to the chemical water treatment unit through the water pump. According to the invention, through adding the electric adsorption equipment, impurity ions in the circulating water are effectively removed, the circulating water quality is improved, the stable operation of a unit is facilitated, the energy and the water are saved, and the operation cost is reduced.
Description
Technical Field
The invention belongs to the technical field of industrial water treatment, and relates to a treatment method and a treatment system for improving the quality of circulating water of a main machine.
Background
Water resources are basic natural resources and strategic economic resources and are important foundations for social and economic sustainable development, maintenance of ecological balance and harmonious environment. The power industry is the national economic basic industry and the important energy industry, and in the total installed capacity of power generation of the whole country, thermal power generation accounts for more than 70 percent, and the water consumption of thermal power generation accounts for 40 percent of the total industrial water consumption. Because the water consumption of the thermal power plant is large, the problem of water becomes a restriction factor for the construction and development of the power industry in northern areas, and therefore, the water saving work of the thermal power plant is very necessary.
The water saving of the thermal power plant is realized mainly by adopting a water-saving equipment system, reasonably using water resources and repeatedly using water resources, in northern areas, the thermal power plant generally adopts an air cooling unit which is divided into a direct air cooling unit and an indirect air cooling unit, the indirect air cooling unit is divided into a mixed type indirect air cooling system and a surface type indirect air cooling system, the surface type indirect air cooling system adopts water as a cooling intermediate medium, cooling water circulates in a closed system consisting of a surface condenser, a radiator arranged in an air cooling tower, a circulating water pump and a pipeline, and has no evaporation loss basically, the circulating cooling water is desalted water, water replenishing of the system adopts desalted water, as the circulating water volume of the surface type air cooling system of the unit is large, the water quality regulation of different materials of the system (the pipeline is carbon steel, the radiator is usually made of aluminum material), the water quality of the carbon steel requires the pH value of the circulating water of a main machine to be not lower than 10.0, the aluminum material requires the pH value of the main machine circulating water to be higher than 7.0-8.0), the water quality can not be considered simultaneously, the water quality is not influenced by the national range, the utilization hours of the main machine is frequently started and the water quality is frequently not higher than the water quality of the water, the water quality of the water is required to be used for the water, the water is not higher than the normal water, the water quality of the water, the water is not required for the water, the water is not required for the water.
Disclosure of Invention
The invention aims to provide a treatment method for improving the quality of circulating water of a main machine, which is used for removing impurity ions in the circulating water, improving the quality of the circulating water, ensuring the stable operation of a unit, saving energy and water, being environment-friendly, reducing the operation cost and improving the automation degree of the treatment of the circulating cooling water of the main machine. It is another object of the present invention to provide a treatment system for improving the quality of the circulating water of a host.
The technical scheme of the invention is as follows: the treatment method is used for improving the quality of the circulating water of the main machine, and the circulating water of the main machine flows to the condenser through the condenser, the circulating water pump and the radiator in a circulating manner. And leading one path of circulating water to an electric adsorption device on a connecting pipeline from a circulating water pump to a radiator, removing impurity ions in the circulating water through the electric adsorption device, and enabling the purified water to enter a condenser and enter a circulating water system. The wastewater treated by the electro-adsorption equipment is discharged to an underground water tank as self-water, and the underground water tank is sent to the chemical water treatment unit through a water pump to be used as water supplement of the chemical water treatment unit.
The operation of the electric adsorption equipment comprises ⑴ pre-washing stage, wherein water to be treated enters the electric adsorption equipment for pre-washing, raw water is used for discharging concentrated water remained in an adsorption module and a pipeline in an electrode regeneration stage, ⑵ adsorption stage, a capacitance deionization adsorption module uses the surface of a charged electrode to adsorb ions in raw water, salts in the raw water are enriched and concentrated on the surface of the electrode, namely the actual water receiving stage, ⑶ regeneration stage, after adsorption set time is reached, a system automatically enters an electrode desorption regeneration stage, after the regeneration process is finished, the electric adsorption equipment automatically shifts to the next period, the pretreatment time of the electric adsorption equipment is 30s, the adsorption time is 420s, and the sewage discharge time is 120 s.
The system for improving the quality treatment method of the circulating water of the host comprises a circulating water pump, a condenser and a radiator, wherein the condenser is connected to the radiator through the circulating water pump, and the radiator is connected to the condenser to form circulation. The system is provided with an electric adsorption device, an underground water tank and a chemical water treatment unit, one path of an outlet of the circulating water pump is connected to the electric adsorption device, a purified water outlet of the electric adsorption device is connected to the condenser, a waste water outlet of the electric adsorption device is connected with the underground water tank, and the underground water tank is connected to the chemical water treatment unit through a water pump.
The electric adsorption equipment consists of a capacitance deionization adsorption module, power supply equipment, a detection instrument and a pipe valve. The detection instrument comprises a conductivity meter, a temperature meter, a water inlet and outlet flow meter, a water inlet and outlet pressure meter, a voltmeter and an ammeter. The system is provided with a controller, and the controller is in communication connection with the electro-adsorption equipment, the circulating water pump, the conductivity meter, the temperature meter, the water inlet and outlet flow meter, the water inlet and outlet pressure meter, the voltmeter and the ammeter. The controller is a computer, a singlechip or a PLC.
① energy-saving and water-saving, environment-friendly, low running cost, ② recovery rate of the electric adsorption equipment between 90% and 95%, desalting rate between 60% and 85%, ② core component with a long service life of more than 10 years, no need of adding medicament, no secondary pollution, ③ electric adsorption equipment with low running cost and spare parts cost, average running cost of about 1.5 yuan/ton water, ④ equipment reliable, stable running, simple operation and maintenance, high automation degree, negative and positive ions respectively removed, no scale generated by mutual combination, no need of special maintenance of the core component during shutdown, ⑤ system controlled by computer, high automation degree, and strong adaptability.
The treatment method and the treatment system for improving the quality of the circulating water of the main machine effectively remove the impurity ions in the circulating water by adding the electric adsorption equipment, improve the circulating water quality, are beneficial to the stable operation of a unit, save energy and water, reduce the operation cost and improve the automation degree of the treatment of the circulating cooling water of the main machine.
Drawings
FIG. 1 is a schematic flow diagram of a treatment system for improving the quality of circulating water from a host according to the present invention;
wherein: 1-condenser, 2-radiator, 3-electric adsorption equipment, 4-circulating water pump, 5-underground water pool, 6-water pump, 7-chemical water treatment unit.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings. The scope of protection of the invention is not limited to the embodiments, and any modification made by those skilled in the art within the scope defined by the claims also falls within the scope of protection of the invention.
The system for improving the quality of the circulating water of the main machine comprises a controller, a circulating water pump 4, an electric adsorption device 3, a condenser 1, a radiator 2, an underground water tank 5 and a chemical water treatment unit 7, wherein the controller is a singlechip, and the chemical water treatment unit 7 is shown in figure 1. The condenser 1 is connected to a radiator through a circulating water pump 4, and the radiator is connected to the condenser to form a circulating water circulation process. One path of the outlet of the circulating water pump 4 is connected to the electric adsorption equipment 3, the purified water outlet of the electric adsorption equipment 3 is connected to the condenser, the waste water outlet of the electric adsorption equipment 3 is connected with the underground water tank 5, and the underground water tank 5 is connected to the chemical water treatment unit 7 through the water pump 6. The electric adsorption equipment consists of a capacitance deionization adsorption module, power supply equipment, a detection instrument and a pipe valve. The detection instrument comprises a conductivity meter, a temperature meter, a water inlet and outlet flow meter, a water inlet and outlet pressure meter, a voltmeter and an ammeter. The controller is in communication connection with the electro-adsorption equipment 3, the circulating water pump 4, the conductivity meter, the temperature meter, the water inlet and outlet flow meter, the water inlet and outlet pressure meter, the voltmeter and the ammeter, and the system for automatically controlling the quality processing of the circulating water.
The treatment process for improving the quality of the circulating water of the main machine comprises the following steps: the circulating water of the host computer flows to the condenser in a circulating way through the condenser 1, the circulating water pump 4 and the radiator 2. On the connecting pipeline from the circulating water pump 4 to the radiator 2, one path of circulating water is led to the electric adsorption equipment 3, impurity ions in the circulating water are removed through the electric adsorption equipment, and purified water enters the condenser and enters a circulating water return system. The wastewater treated by the electro-adsorption equipment is discharged to an underground water tank as self-water, and the underground water tank is sent to the chemical water treatment unit through a water pump to be used as water supplement of the chemical water treatment unit.
The operation of the electro-adsorption equipment 3 comprises ⑴ pre-washing stage, wherein water to be treated enters the electro-adsorption equipment 3 for pre-washing, concentrated water remained in an adsorption module and a pipeline in an electrode regeneration stage is discharged by using raw water, ⑵ adsorption stage enters the adsorption stage after the short pre-washing is finished, ions in the raw water are adsorbed by a capacitance deionization adsorption module by using the surface of a charged electrode, so that salts in the raw water are enriched and concentrated on the surface of the electrode, namely the actual water receiving stage, ⑶ regeneration stage, after the adsorption set time is reached, the system automatically enters the electrode desorption regeneration stage, and after the regeneration process is finished, the electro-adsorption equipment 3 automatically shifts to the next period.
The optimal current of the electro-adsorption equipment for treating the circulating water of the main machine is 17A, under the conditions of pretreatment time of 30S, adsorption time of 420S and sewage discharge time of 120S, the water yield is 93.4%, the conductivity is reduced to 0.9 mu S/cm (average 3 mu S/cm) from 8.12 mu S/cm, the removal rate of each ion is basically positively correlated with the magnitude of the operation current, and the removal rate of sodium ions, calcium ions and magnesium ions is higher than that of aluminum ions and iron ions.
The application of the electric adsorption equipment to the desalting test of the circulating cooling water of the main machine shows that the desalting rate of the circulating water of the system is more than 60 percent, the conductivity of the effluent of the capacitive membrane equipment is less than or equal to 5 mu S/cm when the conductivity of the circulating cooling water of the main machine is less than or equal to 10 mu S/cm, and the water recovery rate is not less than 90 percent. The electric adsorption equipment can continuously and stably operate, has high automation degree and has the operation cost lower than 1.5 yuan/t. Compared with the conventional method for improving the quality of the circulating water of the main machine by diluting, discharging or arranging a bypass mixed bed, the method has the advantages of saving water resources, reducing the pollution of the regenerated wastewater to the environment and the like, and has more advantages in the application in areas with strict environmental protection requirements.
Claims (7)
1. A processing method for improving the quality of circulating water of a main machine is characterized by comprising the following steps: the host computer circulating water carries out circulation flow, characterized by to condenser through condenser (1), circulating water pump (4), radiator (2): leading one path of circulating water to an electric adsorption device (3) on a connecting pipeline from a circulating water pump (4) to a radiator (2), removing impurity ions in the circulating water through the electric adsorption device, and enabling purified water to enter a condenser and enter a circulating water system; the wastewater treated by the electro-adsorption equipment is discharged to an underground water tank as self-water, and the underground water tank is sent to the chemical water treatment unit through a water pump to be used as water supplement of the chemical water treatment unit.
2. The treatment method for improving the quality of the circulating water of the main machine according to claim 1, wherein the operation of the electro-adsorption device (3) is divided into three stages, namely ⑴ pre-flushing stage, pre-flushing the water to be treated in the electro-adsorption device (3), discharging the concentrated water remained in the adsorption module and the pipeline in the electrode regeneration stage by using raw water, ⑵ adsorption stage, absorbing ions in the raw water by using the surface of a charged electrode by using a capacitive deionization adsorption module, and enriching and concentrating the salts in the raw water on the surface of the electrode, namely the actual water collection stage, and ⑶ regeneration stage, and after the set adsorption time is reached, the system automatically enters the electrode desorption regeneration stage.
3. The process of claim 1 for improving the quality of circulating water from a host, wherein: the pretreatment time of the electro-adsorption equipment (3) is 30s, the adsorption time is 420s, and the sewage discharge time is 120 s.
4. The system for improving the quality treatment method of the circulating water of the host according to claim 1 comprises a circulating water pump (4), a condenser (1) and a radiator (2), wherein the condenser (1) is connected to the radiator (2) through the circulating water pump (4), and the radiator is connected to the condenser to form a circulation; the method is characterized in that: the system is equipped with electrosorption equipment (3), underground water pool (5) and chemical water processing unit (7), the export of circulating water pump (4) is connected to electrosorption equipment (3) all the way, electrosorption equipment's pure water exit linkage to condenser, electrosorption equipment's waste water exit linkage underground water pool (5), the underground water pool passes through water pump (6) and is connected to chemical water processing unit (7).
5. The treatment system for improving the quality of circulating water of a main machine as claimed in claim 4, wherein: the electric adsorption equipment consists of a capacitance deionization adsorption module, power supply equipment, a detection instrument and a pipe valve; the detection instrument comprises a conductivity meter, a temperature meter, a water inlet and outlet flow meter, a water inlet and outlet pressure meter, a voltmeter and an ammeter.
6. The treatment system for improving the quality of circulating water of a main machine as claimed in claim 5, wherein: the system is provided with a controller, and the controller is in communication connection with the electro-adsorption equipment (3), the circulating water pump (4), the conductivity meter, the temperature meter, the water inlet and outlet flow meter, the water inlet and outlet pressure meter, the voltmeter and the ammeter.
7. The treatment system for improving the quality of circulating water of a main machine as claimed in claim 6, wherein: the controller is a computer, a single chip microcomputer or a PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911149409.9A CN110885115A (en) | 2019-11-21 | 2019-11-21 | Processing method and system for improving quality of circulating water of main machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911149409.9A CN110885115A (en) | 2019-11-21 | 2019-11-21 | Processing method and system for improving quality of circulating water of main machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110885115A true CN110885115A (en) | 2020-03-17 |
Family
ID=69748285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911149409.9A Pending CN110885115A (en) | 2019-11-21 | 2019-11-21 | Processing method and system for improving quality of circulating water of main machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110885115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875945A (en) * | 2021-04-15 | 2021-06-01 | 浙江安耐杰科技股份有限公司 | Electrochemical circulating water treatment system and process thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070284313A1 (en) * | 2006-06-12 | 2007-12-13 | Jae Bong Lee | Submerged-type electrosorption-based water purification apparatus and method thereof |
| CN201206108Y (en) * | 2008-04-01 | 2009-03-11 | 北京首钢国际工程技术有限公司 | Electro-adsorption desalination system for sewage advanced treatment |
| CN202688057U (en) * | 2012-06-14 | 2013-01-23 | 爱思特水务科技有限公司 | Electro-absorption desalting regeneration system |
| CN107140769A (en) * | 2017-05-11 | 2017-09-08 | 金先培 | A kind of Novel cooling tower circular water treating system |
| CN206767720U (en) * | 2017-02-07 | 2017-12-19 | 中国石油化工股份有限公司 | A kind of electric adsorption liquid treatment device |
| CN108862487A (en) * | 2018-06-21 | 2018-11-23 | 四川大学 | A kind of water treatment system and technique |
| CN110092444A (en) * | 2019-06-12 | 2019-08-06 | 西安利能科技有限责任公司 | A method of processing SCAL type indirect air cooling system circulating water quality |
-
2019
- 2019-11-21 CN CN201911149409.9A patent/CN110885115A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070284313A1 (en) * | 2006-06-12 | 2007-12-13 | Jae Bong Lee | Submerged-type electrosorption-based water purification apparatus and method thereof |
| CN201206108Y (en) * | 2008-04-01 | 2009-03-11 | 北京首钢国际工程技术有限公司 | Electro-adsorption desalination system for sewage advanced treatment |
| CN202688057U (en) * | 2012-06-14 | 2013-01-23 | 爱思特水务科技有限公司 | Electro-absorption desalting regeneration system |
| CN206767720U (en) * | 2017-02-07 | 2017-12-19 | 中国石油化工股份有限公司 | A kind of electric adsorption liquid treatment device |
| CN107140769A (en) * | 2017-05-11 | 2017-09-08 | 金先培 | A kind of Novel cooling tower circular water treating system |
| CN108862487A (en) * | 2018-06-21 | 2018-11-23 | 四川大学 | A kind of water treatment system and technique |
| CN110092444A (en) * | 2019-06-12 | 2019-08-06 | 西安利能科技有限责任公司 | A method of processing SCAL type indirect air cooling system circulating water quality |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875945A (en) * | 2021-04-15 | 2021-06-01 | 浙江安耐杰科技股份有限公司 | Electrochemical circulating water treatment system and process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204079721U (en) | A kind of sewage disposal device adopting pure oxygen aeration and remaining oxygen reuse | |
| CN110885115A (en) | Processing method and system for improving quality of circulating water of main machine | |
| CN111285493B (en) | Integrated device for source separation urine treatment by using supergravity technology | |
| CN110776165A (en) | Method and system for water replenishing treatment of heat supply network | |
| CN202346801U (en) | Recycling system for waste water discharged by reverse osmosis (RO) water purifier with pump | |
| CN211367065U (en) | A processing system for improving host computer circulating water quality | |
| CN111439814A (en) | Desulfurization wastewater concentration and reduction treatment system and method based on non-softening and directional driving electrodialysis technology | |
| CN202101561U (en) | Circulatory purification cooling system for electric smelting furnace | |
| CN212375112U (en) | Comprehensive energy system based on distributed sewage treatment system | |
| CN210145851U (en) | Efficient water-saving system for circulating water pollution discharge | |
| CN110803809A (en) | Treatment system for boiler makeup water | |
| CN111392827A (en) | Sewage treatment system and process | |
| CN221071233U (en) | Water saving device of smelting rolling circulating water system | |
| CN211367259U (en) | System for be used for heat supply network moisturizing to handle | |
| CN219160660U (en) | Lithium bromide solution purifying treatment device | |
| CN204417291U (en) | A kind of printing and dyeing wastewater treatment system | |
| CN219752007U (en) | Electrodialysis treatment system | |
| CN209468240U (en) | Reverse osmosis primary concentration water reclaiming system | |
| CN202688111U (en) | Wastewater recycling system for PCB (Printed Circuit Board) production process | |
| CN214990734U (en) | Acid-base regeneration waste water decrement system of waste water zero release project | |
| CN202139094U (en) | Electroadsorption waste water desalting device | |
| CN211393958U (en) | Safe and stable's recirculated cooling water treatment facilities | |
| CN214734933U (en) | Landfill kitchen leachate treatment device | |
| CN202785761U (en) | Electric adsorption and desalting water treating device | |
| CN202688136U (en) | Heat recovery device for printing and dyeing wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200317 |