CN110002637B - Membrane system produced water pH callback device and technology thereof - Google Patents
Membrane system produced water pH callback device and technology thereof Download PDFInfo
- Publication number
- CN110002637B CN110002637B CN201910399509.0A CN201910399509A CN110002637B CN 110002637 B CN110002637 B CN 110002637B CN 201910399509 A CN201910399509 A CN 201910399509A CN 110002637 B CN110002637 B CN 110002637B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 239000012528 membrane Substances 0.000 title claims abstract description 38
- 238000005516 engineering process Methods 0.000 title description 8
- 238000007872 degassing Methods 0.000 claims abstract description 32
- 239000000945 filler Substances 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 4
- 239000000149 chemical water pollutant Substances 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
Abstract
The invention relates to a membrane system produced water pH callback device and a process thereof, belonging to the field of landfill leachate treatment, and comprising a water collecting tank and a degassing tower arranged on the water collecting tank, wherein a steam-water separator is arranged below an air outlet at the top of the degassing tower, a spraying device is arranged below the steam-water separator, a filler and a filler supporting plate are arranged below the spraying device, a degassing fan is arranged below the filler supporting plate, the water collecting tank is connected with a pH detection system, a water outlet is arranged on a bottom tank body of the water collecting tank, the water outlet is connected with a discharge pump, the discharge pump is connected with a water discharge pipeline and a circulating pipeline which are connected in parallel, and the circulating pipeline is provided with a circulating pump which is communicated with the spraying device.
Description
Technical Field
The invention belongs to the field of landfill leachate treatment, and relates to a membrane system produced water pH callback device and a process thereof.
Background
The quality of leachate is affected by factors such as the composition, scale, precipitation and climate of landfill waste, and generally has the following characteristics: large water quality change, high organic matter concentration, high SS content, high ammonia nitrogen content, imbalance of nutrient element proportion and the like; the leachate treatment mostly adopts a membrane separation technology, and the deep treatment of the leachate is realized by various combinations in various membrane separation technologies such as ultrafiltration, nanofiltration, roll reverse osmosis, network management reverse osmosis, TUF softening membrane, material membrane and the like according to the water quality conditions of various projects.
The percolate has complex components and various indissolvable salts such as calcium, magnesium, barium, silicon and the like, and the indissolvable inorganic salts are concentrated in high power after entering a reverse osmosis system, and when the concentration exceeds the solubility under the condition, scaling phenomenon can be generated on the surface of the membrane. The pH value of raw water is regulated to effectively prevent scaling of carbonate inorganic salt, so that the pH value of the raw water is regulated before the raw water enters membrane system equipment, and the pH value is reduced to between 5.8 and 6.5 by adding concentrated sulfuric acid (98%) into the raw water in the prior art so as to reach acidity.
The final produced water of the membrane system is generally required to be directly discharged after reaching the corresponding standard, so that the pH value of the produced water is between 6 and 9, and the ammonia nitrogen is less than or equal to 25mg/L. However, because the acid is added before membrane treatment, the H+ concentration in water is increased, and because H+ is monovalent cations, the H+ is not easy to intercept by a membrane system, and a large amount of water can flow into the produced water, therefore, the pH value of the produced water of the general membrane system is less than 6, if the direct drainage can not meet the environmental protection requirement, and the original technical scheme needs to use sodium hydroxide medicament and needs manual blending and addition, and the medicament consumption is large, and risks exist in medicament purchase, storage and use.
Disclosure of Invention
In view of the above, the invention aims to provide a membrane system produced water pH callback device and a process thereof, which do not use medicaments, adopt a mechanical removal method, are safe and efficient to operate and can reduce investment operation and cost.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a membrane system produces water pH callback device, including the header tank and set up the degasser on the header tank, the top of degasser inside is the gas outlet, be provided with the catch water that is used for separating liquid and gaseous below this gas outlet, the below of catch water is provided with spray set, packing and packing backup pad have been set gradually below this spray set, be provided with the air intake on the degasser tower wall below the packing backup pad, this air intake is connected with the degasser, the header tank is connected with pH detecting system, be provided with the outlet on the bottom box of header tank, this outlet is connected with the discharge pump, the discharge pump is connected with parallelly connected drain pipe and circulation line, be provided with the circulating pump on the circulation line, this circulating pump is linked to spray set through circulation line, be equipped with the valve on circulation line and/or the drain pipe, the pH detects to pass, valve switch on discharge pump and drain pipe; and if the pH value is not detected to be qualified, the valve is used for conducting the discharge pump and the circulating pipeline.
Optionally, a bearing flange is penetrated in the center of the water collection tank, one end of the bearing flange is fixed with the center of the bottom of the water collection tank, and the other end of the bearing flange exceeds the top of the water collection tank and is fixedly connected with the degassing tower.
Optionally, a plurality of through holes are formed in the cylindrical surface of the bearing flange, which is positioned in the water collecting tank.
Optionally, the degasser is provided with a feed inlet and a discharge outlet on the surface above and below the packing respectively.
Optionally, a drain outlet is formed in the bottom of the water collecting tank, a drain pipeline is connected to the drain outlet, a second manual butterfly valve is arranged on the drain pipeline, and an overflow port is further formed in the water collecting tank above the drain outlet.
Optionally, a check valve and a sampling valve are arranged at one end of the drainage pipeline close to the drainage pump.
Optionally, an overhaul staircase for maintenance and detection is arranged on the degassing tower.
Optionally, a first manual butterfly valve is arranged on a pipeline between the discharge pump and the water outlet, a second pneumatic valve is arranged on the circulating pipeline, and a first pneumatic valve is arranged on the water outlet pipeline.
A membrane system produced water pH callback process comprises the following steps:
S1：
the water produced by the membrane system enters a degassing tower pipeline, and water to be treated is sprayed into the filler after being split by a spraying device;
S2：
the water produced by the membrane system flows from top to bottom through dead weight, air is blown into the filler through a degassing fan at an air inlet of the degassing tower, liquid and gas are separated by a steam-water separator at the top of the degassing tower, and the gas is discharged;
S3：
the treated liquid enters a water collecting tank, after being detected by a pH detection system, a first pneumatic valve is opened, a second pneumatic valve is closed, and the liquid is discharged from a drainage pipeline under the action of a discharge pump;
after the liquid is detected by the pH detection system, if the standard liquid is not met, the second pneumatic valve is opened, the first pneumatic valve is closed, and the liquid enters the degassing tower again through the circulating pipeline for secondary treatment under the action of the circulating pump.
The invention has the beneficial effects that:
1. according to the membrane system produced water pH callback device and the technology thereof disclosed by the invention, based on Dalton's law and Henry's law, the mechanical removal method is adopted to remove CO2 and ammonia nitrogen in water, so that the final pH of the produced water reaches 6-9, the neutralization of the added medicament is not needed, the cost is saved, the manual medicament addition is not needed, the medicament leakage risk is avoided, and a great amount of manpower and material resources consumed by daily maintenance and planned overhaul are obviously reduced.
2. According to the membrane system produced water pH callback device and the technology thereof disclosed by the invention, the circulating pump is adopted for secondary treatment, so that the produced water emission index of the membrane system is ensured to reach the standard stably, the living environment of people is improved, and meanwhile, the labor force is saved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a membrane system produced water pH callback device;
FIG. 2 is a system process diagram of a membrane system produced water pH callback device.
Reference numerals: the device comprises a water collecting tank 1, a degassing tower 2, a steam-water separator 3, a spraying device 4, a filler 5, a filler supporting plate 6, a degassing fan 7, a bearing flange 8, an overhaul staircase 9, a feed inlet 10, a discharge outlet 11, an air outlet 12, an overflow outlet 13, a sewage discharge pipeline 14, a second manual butterfly valve 15, a first manual butterfly valve 16, a discharge pump 17, a first pneumatic valve 18, a drainage pipeline 19, a check valve 20, a sampling valve 21, a circulation pipeline 22 and a second pneumatic valve 23.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1-2, a membrane system produced water pH callback device comprises a water collection tank 1 and a degassing tower 2 arranged on the water collection tank 1, wherein an overhaul staircase 9 for maintenance and detection is arranged on the degassing tower 2, a bearing flange 8 penetrates through the center of the water collection tank 1 for rigidity of the device, one end of the bearing flange 8 is fixed with the center of the bottom of the water collection tank 1, the other end of the bearing flange 8 exceeds the top of the water collection tank 1 and is fixedly connected with the degassing tower 2, a plurality of through holes are formed in the cylindrical surface of the bearing flange 8 in the water collection tank 1 so as to facilitate discharging treated water into the water collection tank 1, an air outlet 12 is arranged at the top of the inside of the degassing tower 2, a steam-water separator 3 for separating liquid and gas is arranged below the air outlet 12, a spraying device 4 is arranged below the steam-water separator 3, a filler 5 and a filler support plate 6 are sequentially arranged below the spraying device 4, the surface above and below the filler 5 is respectively provided with a feed inlet 10 and a discharge outlet 11, the tower wall of the deaerator 2 below the filler supporting plate 6 is provided with an air inlet, the air inlet is connected with a deaeration fan 7, the water collecting tank 1 is connected with a pH detection system for judging whether the pH value of water after the air stripping treatment of the deaerator 2 reaches the standard, the bottom tank body of the water collecting tank 1 is provided with a water outlet, the water outlet is connected with a discharge pump 17, the discharge pump 17 is connected with a parallel drainage pipeline 19 and a circulation pipeline 22, the circulation pipeline 22 is provided with a circulation pump, the circulation pump is communicated to the spraying device 4 through the circulation pipeline 22, a pipeline between the discharge pump 17 and the water outlet is provided with a first manual butterfly valve 16, the circulation pipeline 22 is provided with a second pneumatic valve 23, the drainage pipeline 19 is provided with a first pneumatic valve 18, the pH detection is qualified, the first pneumatic valve 18 is used for conducting the discharge pump 17 and the drainage pipeline 19, and one end, close to the discharge pump 17, of the drainage pipeline 19 is provided with a check valve 20 and a sampling valve 21; the pH detection is unqualified, the second pneumatic valve 23 conducts the discharge pump 17 and the circulating pipeline 22, the tank bottom of the water collecting tank 1 is provided with a drain outlet for cleaning the inside of the water collecting tank 1, the drain outlet is connected with a drain pipeline 14, the drain pipeline 14 is provided with a second manual butterfly valve 15, and the upper part of the drain outlet is provided with an overflow outlet 13 on the water collecting tank 1 to prevent the water level from being too high.
A membrane system produced water pH callback process comprises the following steps:
S1：
the water produced by the membrane system enters a pipeline of a degassing tower 2, and water to be treated is sprayed in a filler 5 after being split by a spraying device 4;
S2：
the water produced by the membrane system flows from top to bottom through dead weight, air is blown into the filler 5 through the air inlet of the degassing tower 2 by the degassing fan 7, and the liquid and the gas are separated by the steam-water separator 3 at the top of the degassing tower 2 and discharged;
S3：
the treated liquid enters the water collecting tank 1, after being detected by the pH detection system, the first pneumatic valve 18 is opened, the second pneumatic valve 23 is closed, and the liquid is discharged from the water discharge pipeline 19 under the action of the discharge pump 17;
after the liquid is detected by the pH detection system and does not reach the standard, the second pneumatic valve 23 is opened, the first pneumatic valve 18 is closed, and the liquid enters the degassing tower 2 again through the circulating pipeline 22 for secondary treatment under the action of the circulating pump.
According to the membrane system produced water pH callback device and the technology thereof disclosed by the invention, based on Dalton's law and Henry's law, the mechanical removal method is adopted to remove CO2 and ammonia nitrogen in water, so that the final pH of the produced water reaches 6-9, the neutralization of the added medicament is not needed, the cost is saved, the manual medicament addition is not needed, the medicament leakage risk is avoided, and a great amount of manpower and material resources consumed by daily maintenance and planned overhaul are obviously reduced.
According to the membrane system produced water pH callback device and the technology thereof disclosed by the invention, the circulating pump is adopted for secondary treatment, so that the produced water emission index of the membrane system is ensured to reach the standard stably, the living environment of people is improved, and meanwhile, the labor force is saved.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (4)
1. The utility model provides a membrane system produces water pH callback device which characterized in that: the device comprises a water collection tank and a degassing tower arranged on the water collection tank, wherein the top of the inside of the degassing tower is an air outlet, a steam-water separator for separating liquid and gas is arranged below the air outlet, a spraying device is arranged below the steam-water separator, a filler and a filler supporting plate are sequentially arranged below the spraying device, an air inlet is formed in the wall of the degassing tower below the filler supporting plate, the air inlet is connected with a degassing fan, the water collection tank is connected with a pH detection system, a water outlet is formed in the bottom box of the water collection tank, a discharge pump is connected with a water discharge pipeline and a circulating pipeline which are connected in parallel, a circulating pump is arranged on the circulating pipeline and is communicated to the spraying device through the circulating pipeline, a valve is arranged on the circulating pipeline and/or the water discharge pipeline, the pH detection is qualified, and the valve is used for conducting the discharge pump and the water discharge pipeline; the pH value is not detected to be qualified, and the valve is used for conducting the discharge pump and the circulating pipeline;
a bearing flange is penetrated in the center of the water collection tank, one end of the bearing flange is fixed with the center of the bottom of the water collection tank, and the other end of the bearing flange exceeds the top of the water collection tank and is fixedly connected with the degassing tower; the bearing flange is arranged on the cylindrical surface inside the water collection tank and provided with a plurality of through holes; the surface above and below the filler of the degasser is provided with a feed inlet and a discharge outlet respectively; a drain outlet is formed in the bottom of the water collecting tank, a drain pipeline is connected to the drain outlet, a second manual butterfly valve is arranged on the drain pipeline, and an overflow port is further formed in the water collecting tank above the drain outlet; one end of the drainage pipeline, which is close to the drainage pump, is provided with a check valve and a sampling valve.
2. The membrane system produced water pH callback device as defined in claim 1, wherein: and an overhaul staircase for maintenance and detection is arranged on the degassing tower.
3. The membrane system produced water pH callback device as defined in claim 1, wherein: the pipeline between the discharge pump and the water outlet is provided with a first manual butterfly valve, the circulating pipeline is provided with a second pneumatic valve, and the water outlet pipeline is provided with a first pneumatic valve.
4. A membrane system produced water pH callback process, using a membrane system produced water pH callback device according to any one of claims 1-3, characterized by comprising the steps of:
S1：
the water produced by the membrane system enters a degassing tower pipeline, and water to be treated is sprayed into the filler after being split by a spraying device;
S2：
the water produced by the membrane system flows from top to bottom through dead weight, air is blown into the filler through a degassing fan at an air inlet of the degassing tower, liquid and gas are separated by a steam-water separator at the top of the degassing tower, and the gas is discharged;
S3：
the treated liquid enters a water collecting tank, after being detected by a pH detection system, a first pneumatic valve is opened, a second pneumatic valve is closed, and the liquid is discharged from a drainage pipeline under the action of a discharge pump;
after the liquid is detected by the pH detection system, if the standard liquid is not met, the second pneumatic valve is opened, the first pneumatic valve is closed, and the liquid enters the degassing tower again through the circulating pipeline for secondary treatment under the action of the circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399509.0A CN110002637B (en) | 2019-05-14 | 2019-05-14 | Membrane system produced water pH callback device and technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399509.0A CN110002637B (en) | 2019-05-14 | 2019-05-14 | Membrane system produced water pH callback device and technology thereof |
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| Publication Number | Publication Date |
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| CN110002637A CN110002637A (en) | 2019-07-12 |
| CN110002637B true CN110002637B (en) | 2023-12-19 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003038905A (en) * | 2001-05-24 | 2003-02-12 | Nikuni:Kk | Deaeration apparatus |
| CN100999370A (en) * | 2007-01-22 | 2007-07-18 | 沅江市明星麻业有限公司 | Treatment method of high alkalinity organic waste water |
| CN101024534A (en) * | 2006-02-21 | 2007-08-29 | 中国科学院生态环境研究中心 | Biological electrochemical combined system for treating dye waste water and method thereof |
| CN105174332A (en) * | 2015-07-16 | 2015-12-23 | 浙江大学 | Method for processing garbage leachate and device thereof |
| CN204999652U (en) * | 2015-07-31 | 2016-01-27 | 天津邦盛净化设备工程有限公司 | PH adjusting device of water is produced to ultrafiltration device |
| CN209989181U (en) * | 2019-05-14 | 2020-01-24 | 重庆三峰科技有限公司 | Membrane system produces water PH back-off device |
-
2019
- 2019-05-14 CN CN201910399509.0A patent/CN110002637B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003038905A (en) * | 2001-05-24 | 2003-02-12 | Nikuni:Kk | Deaeration apparatus |
| CN101024534A (en) * | 2006-02-21 | 2007-08-29 | 中国科学院生态环境研究中心 | Biological electrochemical combined system for treating dye waste water and method thereof |
| CN100999370A (en) * | 2007-01-22 | 2007-07-18 | 沅江市明星麻业有限公司 | Treatment method of high alkalinity organic waste water |
| CN105174332A (en) * | 2015-07-16 | 2015-12-23 | 浙江大学 | Method for processing garbage leachate and device thereof |
| CN204999652U (en) * | 2015-07-31 | 2016-01-27 | 天津邦盛净化设备工程有限公司 | PH adjusting device of water is produced to ultrafiltration device |
| CN209989181U (en) * | 2019-05-14 | 2020-01-24 | 重庆三峰科技有限公司 | Membrane system produces water PH back-off device |
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| CN110002637A (en) | 2019-07-12 |
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