CN112591902A - High-temperature salt inhibitor for high-salinity wastewater quenching tower back-spray evaporation system - Google Patents
High-temperature salt inhibitor for high-salinity wastewater quenching tower back-spray evaporation system Download PDFInfo
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- CN112591902A CN112591902A CN202011253726.8A CN202011253726A CN112591902A CN 112591902 A CN112591902 A CN 112591902A CN 202011253726 A CN202011253726 A CN 202011253726A CN 112591902 A CN112591902 A CN 112591902A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/105—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances combined with inorganic substances
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
- C02F5/125—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen combined with inorganic substances
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Abstract
The invention discloses a high-temperature salt inhibitor for a high-salt wastewater quenching tower back-spray evaporation system, which comprises citric acid, EDTA disodium, monopotassium phosphate, trisodium nitrilotriacetate, sodium dodecyl benzene sulfonate, hydrolytic polymaleic anhydride and water. The high-temperature salt inhibitor for the high-salinity wastewater quenching tower back-spray evaporation system comprises the following production process steps: the method comprises the following steps: adding citric acid, EDTA disodium, monopotassium phosphate, nitrilotriacetic acid trisodium, sodium dodecyl benzene sulfonate, hydrolytic polymaleic anhydride and water into a stirring container according to the proportion, and mixing to obtain a mixed solution; step two: adjusting the pH value, namely adding caustic soda or hydrochloric acid into the stirring container, and adjusting the pH value of the mixed solution in the stirring container; step three: heating in water bath and continuously stirring for reaction, and continuously adding caustic soda or hydrochloric acid for pH value balance in the reaction process until complete reaction to obtain a salt inhibitor; step four: and taking out the salt-resisting agent after reaction in the mixing container, and packaging.
Description
Technical Field
The invention relates to the field of salt inhibitors, in particular to a high-temperature salt inhibitor for a high-salinity wastewater quenching tower back-spray evaporation system.
Background
The quenching tower is used as a cooling mode for burning high-temperature flue gas by solid wastes (such as hazardous wastes) and can effectively inhibit the regeneration of dioxin, so that the quenching tower is widely applied at present. However, in order to effectively inhibit the dioxin from being regenerated, the quenching tower needs to introduce a large amount of water to cool the flue gas (from 600 ℃ to 195 ℃ in 1 s). The flue gas is directly cooled by water, so that water is wasted, and the flue gas treatment cost is increased. The high-salinity wastewater is applied to the existing flue gas treatment system (such as a quench tower system) to replace the original industrial water, so that the water resource can be saved, the treatment cost of the flue gas can be effectively reduced, and the problem of difficult treatment of the high-salinity wastewater can be solved.
However, due to the special properties of the high-salinity wastewater, in the process of evaporating the saline wastewater in the quenching tower, the salt in the inorganic matter can be rapidly crystallized and coalesced under the conditions of high temperature, high alkalinity and high concentration to form large salt blocks which are attached to the inner wall and can block a flue gas channel in the quenching tower, the ash at the bottom of the quenching tower is difficult to discharge, the negative pressure is increased, and the production is greatly influenced.
Disclosure of Invention
The invention aims to provide a high-temperature salt inhibitor for a high-salinity wastewater quenching tower back-spray evaporation system, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-temperature salt inhibitor for a high-salinity wastewater quenching tower back-spray evaporation system comprises 10-20 parts of citric acid, 5-15 parts of DTA disodium, 1-5 parts of monopotassium phosphate, 1-5 parts of trisodium nitrilotriacetate, 5-10 parts of sodium dodecyl benzene sulfonate, 8-15 parts of hydrolytic polymaleic anhydride and 30-70 parts of water.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following steps:
the method comprises the following steps: adding citric acid, EDTA disodium, monopotassium phosphate, nitrilotriacetic acid trisodium, sodium dodecyl benzene sulfonate, hydrolytic polymaleic anhydride and water into a stirring container according to the proportion, and mixing to obtain a mixed solution;
step two: adjusting the pH value, namely adding caustic soda or hydrochloric acid into the stirring container, and adjusting the pH value of the mixed solution in the stirring container;
step three: heating in water bath and continuously stirring for reaction, and continuously adding caustic soda or hydrochloric acid for pH value balance in the reaction process until complete reaction to obtain a salt inhibitor;
step four: and taking out the salt-resisting agent after reaction in the mixing container, and packaging.
As a still further scheme of the invention: the stirring container comprises a stirring device, and the water temperature is constant when the water bath is heated
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following steps:
the method comprises the following steps: high-salinity wastewater enters a high-salinity wastewater tank through flocculation and sedimentation;
step two: detecting the salt content of the high-salinity wastewater;
step three: adding a salt inhibitor produced by 1-5 per mill into a high-salinity wastewater tank according to a salt content detection result;
step four: mixing the high-salinity wastewater in the high-salinity wastewater tank with the salt inhibitor to uniformly mix the high-salinity wastewater with the salt inhibitor;
step five: spraying the high-salinity wastewater mixed with the salt inhibitor into a cooling tower through a pump, cooling the high-temperature flue gas in the cooling tower, so that the temperature of the high-temperature flue gas is quickly cooled from 600 ℃ to below 195 ℃, evaporating the high-salinity wastewater in a quenching tower, and dropping solids such as salt and the like to the bottom of the quenching tower for collection;
step six: after the high-temperature flue gas is cooled, taking out the solid such as salt at the bottom of the cooling tower;
step seven: and finishing the work of cooling the high-temperature flue gas and purifying the high-salinity wastewater.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a special salt-blocking dispersant developed aiming at high-salinity wastewater cooling water, which passes through the mechanisms of threshold effect, lattice distortion and the like. Prevent the salt from aggregating and caking, keep the salt loose and increase the fluidity of the salt. Alleviate flue blockage, improve the thermal conductance efficiency. The high-salinity wastewater can be used for cooling water of the waste incineration quenching tower instead of industrial water. Not only can save water resources and effectively reduce the treatment cost of the flue gas, but also can solve the problem of difficult treatment of high-salinity wastewater.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a high-temperature salt inhibitor for a high-salinity wastewater quenching tower back-spray evaporation system comprises 10 parts of citric acid, 5 parts of DTA disodium, 1 part of monopotassium phosphate, 1 part of nitrilotriacetic acid trisodium, 5 parts of sodium dodecyl benzene sulfonate, 8 parts of hydrolytic polymaleic anhydride and 70 parts of water.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following production process steps:
the method comprises the following steps: adding citric acid, EDTA disodium, monopotassium phosphate, nitrilotriacetic acid trisodium, sodium dodecyl benzene sulfonate, hydrolytic polymaleic anhydride and water into a stirring container according to the proportion, and mixing to obtain a mixed solution;
step two: adjusting the pH value, namely adding caustic soda or hydrochloric acid into the stirring container, and adjusting the pH value of the mixed solution in the stirring container;
step three: heating in water bath and continuously stirring for reaction, and continuously adding caustic soda or hydrochloric acid for pH value balance in the reaction process until complete reaction to obtain a salt inhibitor;
step four: and taking out the salt-resisting agent after reaction in the mixing container, and packaging.
The stirring container comprises a stirring device, and the water temperature is constant when the water bath is heated.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following steps:
the method comprises the following steps: high-salinity wastewater enters a high-salinity wastewater tank through flocculation and sedimentation;
step two: detecting the salt content of the high-salinity wastewater;
step three: adding a salt inhibitor produced by 1-5 per mill into a high-salinity wastewater tank according to a salt content detection result;
step four: mixing the high-salinity wastewater in the high-salinity wastewater tank with the salt inhibitor to uniformly mix the high-salinity wastewater with the salt inhibitor;
step five: spraying the high-salinity wastewater mixed with the salt inhibitor into a cooling tower through a pump, cooling the high-temperature flue gas in the cooling tower, so that the temperature of the high-temperature flue gas is quickly cooled from 600 ℃ to below 195 ℃, evaporating the high-salinity wastewater in a quenching tower, and dropping solids such as salt and the like to the bottom of the quenching tower for collection;
step six: after the high-temperature flue gas is cooled, taking out the solid such as salt at the bottom of the cooling tower;
step seven: and finishing the work of cooling the high-temperature flue gas and purifying the high-salinity wastewater.
Example two:
a high-temperature salt inhibitor for a high-salinity wastewater quenching tower back-spray evaporation system comprises 20 parts of citric acid, 15 parts of DTA disodium, 5 parts of monopotassium phosphate, 5 parts of nitrilotriacetic acid trisodium, 10 parts of sodium dodecyl benzene sulfonate, 15 parts of hydrolytic polymaleic anhydride and 30 parts of water.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following production process steps:
the method comprises the following steps: adding citric acid, EDTA disodium, monopotassium phosphate, nitrilotriacetic acid trisodium, sodium dodecyl benzene sulfonate, hydrolytic polymaleic anhydride and water into a stirring container according to the proportion, and mixing to obtain a mixed solution;
step two: adjusting the pH value, namely adding caustic soda or hydrochloric acid into the stirring container, and adjusting the pH value of the mixed solution in the stirring container;
step three: heating in water bath and continuously stirring for reaction, and continuously adding caustic soda or hydrochloric acid for pH value balance in the reaction process until complete reaction to obtain a salt inhibitor;
step four: and taking out the salt-resisting agent after reaction in the mixing container, and packaging.
The stirring container comprises a stirring device, and the water temperature is constant when the water bath is heated.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following steps:
the method comprises the following steps: high-salinity wastewater enters a high-salinity wastewater tank through flocculation and sedimentation;
step two: detecting the salt content of the high-salinity wastewater;
step three: adding a salt inhibitor produced by 1-5 per mill into a high-salinity wastewater tank according to a salt content detection result;
step four: mixing the high-salinity wastewater in the high-salinity wastewater tank with the salt inhibitor to uniformly mix the high-salinity wastewater with the salt inhibitor;
step five: spraying the high-salinity wastewater mixed with the salt inhibitor into a cooling tower through a pump, cooling the high-temperature flue gas in the cooling tower, so that the temperature of the high-temperature flue gas is quickly cooled from 600 ℃ to below 195 ℃, evaporating the high-salinity wastewater in a quenching tower, and dropping solids such as salt and the like to the bottom of the quenching tower for collection;
step six: after the high-temperature flue gas is cooled, taking out the solid such as salt at the bottom of the cooling tower;
step seven: and finishing the work of cooling the high-temperature flue gas and purifying the high-salinity wastewater.
Example three:
a high-temperature salt inhibitor for a high-salinity wastewater quenching tower back-spray evaporation system comprises 15 parts of citric acid, 13 parts of DTA disodium, 2 parts of monopotassium phosphate, 3 parts of nitrilotriacetic acid trisodium, 7 parts of sodium dodecyl benzene sulfonate, 12 parts of hydrolytic polymaleic anhydride and 48 parts of water.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following production process steps:
the method comprises the following steps: adding citric acid, EDTA disodium, monopotassium phosphate, nitrilotriacetic acid trisodium, sodium dodecyl benzene sulfonate, hydrolytic polymaleic anhydride and water into a stirring container according to the proportion, and mixing to obtain a mixed solution;
step two: adjusting the pH value, namely adding caustic soda or hydrochloric acid into the stirring container, and adjusting the pH value of the mixed solution in the stirring container;
step three: heating in water bath and continuously stirring for reaction, and continuously adding caustic soda or hydrochloric acid for pH value balance in the reaction process until complete reaction to obtain a salt inhibitor;
step four: and taking out the salt-resisting agent after reaction in the mixing container, and packaging.
The stirring container comprises a stirring device, and the water temperature is constant when the water bath is heated.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following steps:
the method comprises the following steps: high-salinity wastewater enters a high-salinity wastewater tank through flocculation and sedimentation;
step two: detecting the salt content of the high-salinity wastewater;
step three: adding a salt inhibitor produced by 1-5 per mill into a high-salinity wastewater tank according to a salt content detection result;
step four: mixing the high-salinity wastewater in the high-salinity wastewater tank with the salt inhibitor to uniformly mix the high-salinity wastewater with the salt inhibitor;
step five: spraying the high-salinity wastewater mixed with the salt inhibitor into a cooling tower through a pump, cooling the high-temperature flue gas in the cooling tower, so that the temperature of the high-temperature flue gas is quickly cooled from 600 ℃ to below 195 ℃, evaporating the high-salinity wastewater in a quenching tower, and dropping solids such as salt and the like to the bottom of the quenching tower for collection;
step six: after the high-temperature flue gas is cooled, taking out the solid such as salt at the bottom of the cooling tower;
step seven: and finishing the work of cooling the high-temperature flue gas and purifying the high-salinity wastewater.
Example four:
a high-temperature salt inhibitor for a high-salinity wastewater quenching tower back-spray evaporation system comprises 12 parts of citric acid, 8 parts of DTA disodium, 2 parts of monopotassium phosphate, 2 parts of nitrilotriacetic acid trisodium, 6 parts of sodium dodecyl benzene sulfonate, 10 parts of hydrolytic polymaleic anhydride and 60 parts of water.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following production process steps:
the method comprises the following steps: adding citric acid, EDTA disodium, monopotassium phosphate, nitrilotriacetic acid trisodium, sodium dodecyl benzene sulfonate, hydrolytic polymaleic anhydride and water into a stirring container according to the proportion, and mixing to obtain a mixed solution;
step two: adjusting the pH value, namely adding caustic soda or hydrochloric acid into the stirring container, and adjusting the pH value of the mixed solution in the stirring container;
step three: heating in water bath and continuously stirring for reaction, and continuously adding caustic soda or hydrochloric acid for pH value balance in the reaction process until complete reaction to obtain a salt inhibitor;
step four: and taking out the salt-resisting agent after reaction in the mixing container, and packaging.
The stirring container comprises a stirring device, and the water temperature is constant when the water bath is heated.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following steps:
the method comprises the following steps: high-salinity wastewater enters a high-salinity wastewater tank through flocculation and sedimentation;
step two: detecting the salt content of the high-salinity wastewater;
step three: adding a salt inhibitor produced by 1-5 per mill into a high-salinity wastewater tank according to a salt content detection result;
step four: mixing the high-salinity wastewater in the high-salinity wastewater tank with the salt inhibitor to uniformly mix the high-salinity wastewater with the salt inhibitor;
step five: spraying the high-salinity wastewater mixed with the salt inhibitor into a cooling tower through a pump, cooling the high-temperature flue gas in the cooling tower, so that the temperature of the high-temperature flue gas is quickly cooled from 600 ℃ to below 195 ℃, evaporating the high-salinity wastewater in a quenching tower, and dropping solids such as salt and the like to the bottom of the quenching tower for collection;
step six: after the high-temperature flue gas is cooled, taking out the solid such as salt at the bottom of the cooling tower;
step seven: and finishing the work of cooling the high-temperature flue gas and purifying the high-salinity wastewater.
Example five:
a high-temperature salt inhibitor for a high-salinity wastewater quenching tower back-spray evaporation system comprises 17 parts of citric acid, 13 parts of DTA disodium, 4 parts of monopotassium phosphate, 4 parts of nitrilotriacetic acid trisodium, 8 parts of sodium dodecyl benzene sulfonate, 14 parts of hydrolytic polymaleic anhydride and 50 parts of water.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following production process steps:
the method comprises the following steps: adding citric acid, EDTA disodium, monopotassium phosphate, nitrilotriacetic acid trisodium, sodium dodecyl benzene sulfonate, hydrolytic polymaleic anhydride and water into a stirring container according to the proportion, and mixing to obtain a mixed solution;
step two: adjusting the pH value, namely adding caustic soda or hydrochloric acid into the stirring container, and adjusting the pH value of the mixed solution in the stirring container;
step three: heating in water bath and continuously stirring for reaction, and continuously adding caustic soda or hydrochloric acid for pH value balance in the reaction process until complete reaction to obtain a salt inhibitor;
step four: and taking out the salt-resisting agent after reaction in the mixing container, and packaging.
The stirring container comprises a stirring device, and the water temperature is constant when the water bath is heated.
A production process of a high-temperature salt inhibitor of a high-salinity wastewater quenching tower back-spray evaporation system comprises the following steps:
the method comprises the following steps: high-salinity wastewater enters a high-salinity wastewater tank through flocculation and sedimentation;
step two: detecting the salt content of the high-salinity wastewater;
step three: adding a salt inhibitor produced by 1-5 per mill into a high-salinity wastewater tank according to a salt content detection result;
step four: mixing the high-salinity wastewater in the high-salinity wastewater tank with the salt inhibitor to uniformly mix the high-salinity wastewater with the salt inhibitor;
step five: spraying the high-salinity wastewater mixed with the salt inhibitor into a cooling tower through a pump, cooling the high-temperature flue gas in the cooling tower, so that the temperature of the high-temperature flue gas is quickly cooled from 600 ℃ to below 195 ℃, evaporating the high-salinity wastewater in a quenching tower, and dropping solids such as salt and the like to the bottom of the quenching tower for collection;
step six: after the high-temperature flue gas is cooled, taking out the solid such as salt at the bottom of the cooling tower;
step seven: and finishing the work of cooling the high-temperature flue gas and purifying the high-salinity wastewater.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a high salt waste water quench tower returns high temperature of spray evaporation system and hinders salt agent which characterized in that: the salt inhibitor comprises 10-20 parts of citric acid, 5-15 parts of DTA disodium, 1-5 parts of monopotassium phosphate, 1-5 parts of trisodium nitrilotriacetate, 5-10 parts of sodium dodecyl benzene sulfonate, 8-15 parts of hydrolytic polymaleic anhydride and 30-70 parts of water.
2. The production process of the high-temperature salt inhibitor for the high-salt wastewater quenching tower back-spray evaporation system according to claim 1, which is characterized in that: the production process comprises the following steps:
the method comprises the following steps: adding citric acid, EDTA disodium, monopotassium phosphate, nitrilotriacetic acid trisodium, sodium dodecyl benzene sulfonate, hydrolytic polymaleic anhydride and water into a stirring container according to the proportion, and mixing to obtain a mixed solution;
step two: adjusting the pH value, namely adding caustic soda or hydrochloric acid into the stirring container, and adjusting the pH value of the mixed solution in the stirring container;
step three: heating in water bath and continuously stirring for reaction, and continuously adding caustic soda or hydrochloric acid for pH value balance in the reaction process until complete reaction to obtain a salt inhibitor;
step four: and taking out the salt-resisting agent after reaction in the mixing container, and packaging.
3. The production process of the high-temperature salt inhibitor for the high-salt wastewater quenching tower back-spray evaporation system according to claim 2, which is characterized in that: the stirring container comprises a stirring device, and the water temperature is constant when the water bath is heated.
4. The production process of the high-temperature salt inhibitor for the high-salt wastewater quenching tower back-spray evaporation system according to claim 2, which is characterized in that: the use method of the salt inhibitor comprises the following steps:
the method comprises the following steps: high-salinity wastewater enters a high-salinity wastewater tank through flocculation and sedimentation;
step two: detecting the salt content of the high-salinity wastewater;
step three: adding a salt inhibitor produced by 1-5 per mill into a high-salinity wastewater tank according to a salt content detection result;
step four: mixing the high-salinity wastewater in the high-salinity wastewater tank with the salt inhibitor to uniformly mix the high-salinity wastewater with the salt inhibitor;
step five: spraying the high-salinity wastewater mixed with the salt inhibitor into a cooling tower through a pump, cooling the high-temperature flue gas in the cooling tower, so that the temperature of the high-temperature flue gas is quickly cooled from 600 ℃ to below 195 ℃, evaporating the high-salinity wastewater in a quenching tower, and dropping solids such as salt and the like to the bottom of the quenching tower for collection;
step six: after the high-temperature flue gas is cooled, taking out the solid such as salt at the bottom of the cooling tower;
step seven: and finishing the work of cooling the high-temperature flue gas and purifying the high-salinity wastewater.
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| CN202011253726.8A CN112591902A (en) | 2020-11-11 | 2020-11-11 | High-temperature salt inhibitor for high-salinity wastewater quenching tower back-spray evaporation system |
| CN202110995397.2A CN113480017B (en) | 2020-11-11 | 2021-08-27 | Novel high-temperature dispersion scale inhibitor for high-salinity wastewater quench tower back-spray evaporation system |
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| CN202011253726.8A CN112591902A (en) | 2020-11-11 | 2020-11-11 | High-temperature salt inhibitor for high-salinity wastewater quenching tower back-spray evaporation system |
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| CN202110995397.2A Active CN113480017B (en) | 2020-11-11 | 2021-08-27 | Novel high-temperature dispersion scale inhibitor for high-salinity wastewater quench tower back-spray evaporation system |
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| JP3346173B2 (en) * | 1996-05-29 | 2002-11-18 | 三浦工業株式会社 | Descaling agent that removes the scale where the hardness component and silica are combined |
| CN102329015A (en) * | 2011-07-24 | 2012-01-25 | 天津市瑞福驰化工有限公司 | High-efficiency scale inhibitor |
| CN104925968B (en) * | 2015-07-07 | 2017-03-01 | 西南石油大学 | A kind of salt tolerant high-temperature-resistant scale inhibitor and preparation method thereof |
| CN109835989A (en) * | 2019-04-02 | 2019-06-04 | 常州工程职业技术学院 | A kind of recirculated cooling water composite scale inhibitor and preparation method thereof |
| CN111056648A (en) * | 2019-12-20 | 2020-04-24 | 安徽遨信网络科技有限公司 | Preparation method of efficient scale inhibitor for circulating cooling water system |
| CN111747589A (en) * | 2020-06-05 | 2020-10-09 | 中节能（连云港）清洁技术发展有限公司 | Salt inhibitor and preparation method and application thereof |
| CN111675274B (en) * | 2020-07-28 | 2024-07-05 | 杭州齐创环境工程有限公司 | High-salt wastewater quenching tower back-spraying evaporation system and process |
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Application publication date: 20210402 |