CN104386839A - Preparation method of water treatment agent - Google Patents
Preparation method of water treatment agent Download PDFInfo
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- CN104386839A CN104386839A CN201410636562.5A CN201410636562A CN104386839A CN 104386839 A CN104386839 A CN 104386839A CN 201410636562 A CN201410636562 A CN 201410636562A CN 104386839 A CN104386839 A CN 104386839A
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- phosphonate
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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
- C02F5/14—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 phosphorus
- C02F5/145—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 phosphorus 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
- C02F2303/08—Corrosion inhibition
-
- 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
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention provides a preparation method of a water treatment agent. The preparation method comprises the following steps: preparing the following raw materials: phosphonate, polyquaternary ammonium salt, polycarboxylate, organic phosphonate and a sulfonate copolymer; adding phosphonate, polyquaternary ammonium salt and water to a reaction kettle and fully stirring the raw materials; heating the raw materials at a certain temperature to dissolve phosphonate and polyquaternary ammonium salt to form a colloid; cooling a colloidal mixture obtained in the step III, adding polycarboxylate and organic phosphonate while stirring the colloidal mixture, raising the temperature at the same time and stirring the materials at the temperature; cooling a mixture obtained in the step IV, adding the sulfonate copolymer while stirring the mixture at the same time and continuously stirring the materials after completing adding the sulfonate copolymer; discharging, cooling, drying and grinding a mixture, thus obtaining the water treatment agent. The water treatment agent has the characteristics of high efficiency, low cost, wide application range, no corrosion and no toxicity, and not only can be used for removing heavy metals in sewage but also can play a good role in removing the pollutants except the heavy metals.
Description
Technical field
The invention belongs to the technical field of water treatment, in particular to a kind of preparation method of the water treatment agent for the treatment of sewage.
Background technology
Sewage disposal technology has a very important role to water saving, the problem such as energy-conservation, but also affects to environment in the use procedure of sewage treatment drug simultaneously.In cooling water system, water temperature is higher than under the various occasions of envrionment temperature, and the fouling of the inorganic salt such as calcium carbonate can bring serious consequence.In recent years, in water treatment field, the water technology of using basic, non-adjust ph is growing, wherein adds corrosion-mitigation scale-inhibition medicament, low-phosphorous, without phosphorus formula application more and more extensive, without phosphorus Green Water treatment agent has become the hot subject of domestic and international water conditioner research aspect.Scientific utilization water treatment agent can effectively protection against corrosion and prevent fouling, thus the utilization ratio of raising equipment and water and reach the object of saving water source and the energy.
In addition, in various water system, inevitably there are various source of pollution, particularly some microorganisms are as bacterium algae, can spread by large-scale breeding, havoc water quality, and produce great corrosion failure effect to the container of storage of water system.
Current, environment protection has become the problem of World Focusing, and the emission request of industrial sewage is strict; country takes corresponding compulsory measure; seek a kind of effective sewage-treating agent, can reach sewage discharge requirement after can making sewage disposal, be numerous enterprises urgent need to solve the problem.
Chemical precipitation method is extensively used in sewage disposal, it in waste water, adds some chemical agent make it and Pollutants in Wastewater generation chemical reaction, form the solid product of indissoluble, then carry out solid-liquid separation, thus a kind of method of removing water pollutant.At present in some industries, as black water, oil-containing wastewater, dyeing waste water, paper waste etc. the medicament that adopts, poor processing effect, settling velocity are slow, and medicament expense is higher, and some enterprise also causes equipment heavy corrosion.
Colliery aborning, produces a large amount of black waters, if do not processed in time will cause severe contamination to these water.The process of existing slime water treatment method many employings adding medicine, polyaddition aluminum chloride or calcium chloride and polyacrylamide coupling in black water, precipitation is administered.Owing to introducing chlorion in a large number, thus cause equipment heavy corrosion.
Oil extraction in oil field factory recovered water is with crude oil from reservoir exploitation out, not only crude oil is carried in waste water, the various salt in stratum and gas is also flow in the oil reservoir of High Temperature High Pressure, in oil recovery process, from stratum, carry out many suspended solidss again, therefore, the feature of oil field extracted water be not only COD and oil-contg high, and temperature is high, salinity is high.Many employing dosing sedimentation and filtration methods process now, dosing mostly is polymeric aluminum, and ubiquity problem is that treatment effect is bad.
Be in the patent of 201010591583.1 at application number, disclose a kind of sewage-treating agent, use this treatment agent process trade effluent, it comprises zeolite powder, wilkinite, hydrochloric acid, ferric sulfate, magnesium sulfate, kaolin; Weight ratio between each component is: 1: 0.2-0.4: 1: 0.05-1: 0.3-0.4; Zeolite powder and bentonitic weight ratio are 0.7-1-0.3-1.
And disclose a kind of preparation method of sewage-treating agent, comprise the following steps:
(1) zeolite powder, wilkinite is taken according to the above ratio, hydrochloric acid, ferric sulfate, magnesium sulfate, kaolin;
(2) zeolite powder is put into the roasting of High Temperature Furnaces Heating Apparatus 500-600 degree, 20 minutes, be cooled to about 100;
(3) by the zeolite powder of high-temperature roasting and wilkinite, ferric sulfate, magnesium sulfate, kaolin puts into reactor mixing and stirring.
In the patent of application number 201110355989.4, Waste water treatment medicament is Al-Fe-Mg compound, and wherein Al3+ accounts for 30 ~ 40%, Fe3+ accounts for 20 ~ 30%, Mg2+ and accounts for 30 ~ 40%, also has a small amount of Mn2+ and lithopone, Mn2+ can use MnS04, accounts for 5%; Lithopone accounts for 5%, Al3+ and can add with Tai-Ace S 150 [Al2 (SO4) 3]; Fe3+ can add with [Fe2 (S04) 3]; Mg2+ can add with magnesium sulfate (MgSO4); Lithopone is the mixture of zinc sulphide and barium sulfate, and molecular formula is: ZnS+BaS04, and ratio is 3:7.
Compound method adopts general method Homogeneous phase mixing to form.(about 15 minutes) the whole dissolving that at room temperature stir can use.Use temperature is at 5 DEG C ~ 50 DEG C.
The ultimate principle of disposing of sewage is destroyed by the colloid in sewage.Exist in colloidal state containing a large amount of suspended substance, emulsification etc. in sewage.Use medicament of the present invention colloid surface charge neutralization in sewage can be fallen, thus destroy colloidal suspended substance and emulsification etc., make suspended substance rapid precipitation.
This Waste water treatment medicament is applicable to black water, oily(waste)water, dyeing waste water, paper waste, chemical industry and municipal effluent etc.After adding this medicament in sewage, suspended substance flocculates at once, and the alumen ustum of generation is large, and fast, efficiency is high, and Floc strength is high, and hydrophobic performance is good, is beneficial to press filtration for precipitation.Filter cake moisture content after press filtration is low, and quality is good.The medicament expense processing every cube of this medicament of sewage is only about 60 percent of other medicament expenses.
After this chemicals treatment, the pH value of solution is similar to neutrality 6.5 ~ 8.5, not containing Cl-ion, when after process Water circulation, effectively can protect the steel construction in aqueous systems, make it exempt from corrosion, therefore can reduce a large amount of equipment maintenance costs every year.This Waste water treatment medicament purity is high, inclusion-free, without dust, the aqueous solution is as clear as crystal.This medicament nontoxicity, on operator without impact, the problems such as the rear water non-secondary pollution of process.
Existing water technology processes objectionable impuritiess such as the heavy metals in trade effluent, and a good removing effect can not be reached for the objectionable impurities in waste water except heavy metal, deposit the problem being difficult to eliminate objectionable impurities when especially processing industrial circulate water.In existing wastewater treatment also there is the problems such as poor processing effect, settling velocity is slow, cost is high, equipment heavy corrosion in institute's with medicament.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of high-level efficiency, low cost, wide, corrosion-free, the avirulent Waste water treatment medicament of adaptation.
For achieving the above object, the invention provides a kind of preparation method of water treatment agent, it is characterized in that, comprise the steps:
Step one: get raw material by weight proportion: phosphonate 12-16 part, poly-quaternary ammonium salt 8-12 part, polycarboxylate 25-35 part, organic phosphonate 5-10 part, co-polymer of sulfonate 40-45 part;
Step 2: phosphonate, poly-quaternary ammonium salt and water are joined in reactor, fully stirs;
Step 3: heat 1-1.5 hour at a certain temperature, make phosphonate and poly-quaternary ammonium salt be dissolved as glue;
Step 4: by the colloidal mixture cooling in step 3, add polycarboxylate and organic phosphonate while stirring, simultaneously raised temperature, and stir 0.5 hour at such a temperature;
Step 5: lowered the temperature by the mixture in step 4, add co-polymer of sulfonate while stirring simultaneously, after treating that co-polymer of sulfonate adds, continues stirring 0.5 hour;
Step 6: the mixture in step 5 carried out discharging, cooling, drying and pulverize, thus obtaining water treatment agent.
As preferably, in medicament, the weight percent of each component is as follows: phosphonate 13 parts, poly-quaternary ammonium salt 10 parts, polycarboxylate 29 parts, organic phosphonate 8 parts, co-polymer of sulfonate 40 parts.
As preferably, the certain temperature in step 3 is 75-85 DEG C.
As preferably, the stirring of step 4 is carried out at 75-80 DEG C.
As preferably, the stirring in step 5 is carried out at 20-25 DEG C.
Described polycarboxylate is poly-quaternary ammonium salt sodium.The invention has the beneficial effects as follows:
The solubleness of phosphonate in water is 68%, and the solubleness in other organic solvents is lower.From water during crystallization, form monohydrate.Easily generate when drying out, to polyvalent metal ion in water, there is complex ability.It has fabulous scale-inhibiting properties and corrosion inhibition as Scale inhibitors and inhibiter, can play good performance in the process for feedwater, recirculated cooling water and oil-field water.
Poly-quaternary ammonium salt can be used as the filtration of flocculation agent and sludge dewatering or centrifugal auxiliary agent in water treatment, is used in oil refinery effluent and can receives good effect.It gathers isoelectric substance, type homopolymer, good water solubility for strong cation, can mix with water with arbitrary proportion, nonpoisonous and tasteless, and stable performance is insensitive to pH value, is used in acidity and alkaline environment, has anti-chlorine Degradation, also have the characteristic of high temperature high voltage resistant simultaneously.
Polycarboxylate has good chelating ability, calcium carbonate in the aqueous solution, calcium phosphate effectively can be stoped to become dirt, especially stop the performance of calcium phosphate scale to be obviously better than other dirt dispersion agent.The silt of amorphous, dust, corrosion product and biological clay etc. can also be disperseed simultaneously, in the basic conditions, still there is good dispersiveness.
Gained finished product of the present invention is added in 1:400 ratio and needs, in water body to be processed, in actual water body process, to carry out Preliminary Applications, obtain good effect.After applying finished product of the present invention, a good removing effect is reached for the nuisance mass-energy in waste water except heavy metal, when especially processing industrial circulate water, deposit the problem being difficult to eliminate objectionable impurities.Effect is as follows: effectively removal heavy metal reaches more than 85%, COD clearance and reaches more than 90%, BOD removal rate up to more than 92%.
Water treatment agent prepared by present method has high-level efficiency, low cost, wide, corrosion-free, the avirulent performance of adaptation, can not only remove the heavy metal in sewage, and other pollutent simultaneously outside energy heavy metal plays good removal effect.
Embodiment
For making the object of the embodiment of the present invention and technical scheme clearly, be clearly and completely described to the technical scheme of the embodiment of the present invention below.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of protection of the invention.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
The solubleness of phosphonate in water is 68%, and the solubleness in other organic solvents is lower.From water during crystallization, form monohydrate.Easily generate when drying out, to polyvalent metal ion in water, there is complex ability.It has fabulous scale-inhibiting properties and corrosion inhibition as Scale inhibitors and inhibiter, can play good performance in the process for feedwater, recirculated cooling water and oil-field water.
Poly-quaternary ammonium salt can be used as the filtration of flocculation agent and sludge dewatering or centrifugal auxiliary agent in water treatment, is used in oil refinery effluent and can receives good effect.It gathers isoelectric substance, type homopolymer, good water solubility for strong cation, can mix with water with arbitrary proportion, nonpoisonous and tasteless, and stable performance is insensitive to pH value, is used in acidity and alkaline environment, has anti-chlorine Degradation, also have the characteristic of high temperature high voltage resistant simultaneously.
Polycarboxylate has good chelating ability, calcium carbonate in the aqueous solution, calcium phosphate effectively can be stoped to become dirt, especially stop the performance of calcium phosphate scale to be obviously better than other dirt dispersion agent.The silt of amorphous, dust, corrosion product and biological clay etc. can also be disperseed simultaneously, in the basic conditions, still there is good dispersiveness.
Embodiment 1
Water treatment agent, mainly comprise phosphonate, poly-quaternary ammonium salt, polycarboxylate, organic phosphonate and co-polymer of sulfonate, in medicament, the weight percent of each component is phosphonate 12%, poly-quaternary ammonium salt 8%, polycarboxylate 35%, organic phosphonate 5%, co-polymer of sulfonate 40%.
The preparation method of water treatment agent, comprises the steps:
Step one: get raw material by weight proportion: phosphonate 12 parts, poly-quaternary ammonium salt 8 parts, polycarboxylate 35 parts, organic phosphonate 5 parts, co-polymer of sulfonate 40 parts;
Step 2: phosphonate, poly-quaternary ammonium salt and water are joined in reactor, fully stirs;
Step 3: heat 1-1.5 hour at 75 DEG C of temperature, makes phosphonate and poly-quaternary ammonium salt be dissolved as glue;
Step 4: by the colloidal mixture cooling in step 3, add polycarboxylate and organic phosphonate while stirring, simultaneously raised temperature to 75 DEG C, and stir 0.5 hour at such a temperature;
Step 5: carried out being cooled to 20 DEG C by the mixture in step 4, add co-polymer of sulfonate while stirring simultaneously, after treating that co-polymer of sulfonate adds, continues stirring 0.5 hour;
Step 6: the mixture in step 5 carried out discharging, cooling, drying and pulverize, thus obtaining water treatment agent.
Embodiment 2
Water treatment agent, mainly comprise phosphonate, poly-quaternary ammonium salt, polycarboxylate, organic phosphonate and co-polymer of sulfonate, in medicament, the weight percent of each component is phosphonate 16%, poly-quaternary ammonium salt 8%, polycarboxylate 31%, organic phosphonate 5%, co-polymer of sulfonate 40%.
The preparation method of water treatment agent, comprises the steps:
Step one: get raw material by weight proportion: phosphonate 16 parts, poly-quaternary ammonium salt 8 parts, polycarboxylate 31 parts, organic phosphonate 5 parts, co-polymer of sulfonate 40 parts;
Step 2: phosphonate, poly-quaternary ammonium salt and water are joined in reactor, fully stirs;
Step 3: heat 1-1.5 hour at 85 DEG C of temperature, makes phosphonate and poly-quaternary ammonium salt be dissolved as glue;
Step 4: by the colloidal mixture cooling in step 3, add polycarboxylate and organic phosphonate while stirring, simultaneously raised temperature to 85 DEG C, and stir 0.5 hour at such a temperature;
Step 5: carried out being cooled to 25 DEG C by the mixture in step 4, add co-polymer of sulfonate while stirring simultaneously, after treating that co-polymer of sulfonate adds, continues stirring 0.5 hour;
Step 6: the mixture in step 5 carried out discharging, cooling, drying and pulverize, thus obtaining water treatment agent.
Embodiment 3
Water treatment agent, mainly comprise phosphonate, poly-quaternary ammonium salt, polycarboxylate, organic phosphonate and co-polymer of sulfonate, in medicament, the weight percent of each component is phosphonate 14%, poly-quaternary ammonium salt 10%, polycarboxylate 30%, organic phosphonate 6%, co-polymer of sulfonate 40%.
The preparation method of water treatment agent, comprises the steps:
Step one: get raw material by weight proportion: phosphonate 14 parts, poly-quaternary ammonium salt 10 parts, polycarboxylate 30 parts, organic phosphonate 6 parts, co-polymer of sulfonate 40 parts;
Step 2: phosphonate, poly-quaternary ammonium salt and water are joined in reactor, fully stirs;
Step 3: heat 1-1.5 hour at 80 DEG C of temperature, makes phosphonate and poly-quaternary ammonium salt be dissolved as glue;
Step 4: by the colloidal mixture cooling in step 3, add polycarboxylate and organic phosphonate while stirring, simultaneously raised temperature to 80 DEG C, and stir 0.5 hour at such a temperature;
Step 5: carried out being cooled to 25 DEG C by the mixture in step 4, add co-polymer of sulfonate while stirring simultaneously, after treating that co-polymer of sulfonate adds, continues stirring 0.5 hour;
Step 6: the mixture in step 5 carried out discharging, cooling, drying and pulverize, thus obtaining water treatment agent.
As preferably, poly-quaternary ammonium salt is poly-2-hydroxypropyl-1,1-N-alkyl dimethyl ammonium chloride.Polycarboxylate is poly-quaternary ammonium salt sodium.
Clear water respectively for waste water before treatment and solid-liquid separation detects COD, BOD and SS (suspended substance in water quality), and detects total nitrogen, total phosphorus and ammonia-nitrogen content, and result is as follows:
COD and BOD drops to 1100mg/L and 250mg/L by initial 10000mg/L and 3590mg/L respectively, COD and BOD clearance reaches 89% and 93% respectively;
SS drops to 280mg/L by initial 3386mg/L, and SS clearance reaches 92%;
Total nitrogen content drops to 22mg/L by 66.5mg/L, and total phosphorous drops to 1.0mg/L by 11.1mg/L, and ammonia-nitrogen content drops to 7.5mg/L by 15.6mg/L.
Apparent effect measuring:
Before process, chroma in waste water is 2000 times, and the clear water colourity after process is less than 36 times;
Compared to waste water before process, the foul odour of the clear water after process obviously alleviates;
Before process, chroma in waste water is 110 times, and the clear water colourity after process drops to 22 times;
Before process, turbidity of wastewater is 258NTU, and the clear water turbidity after process drops to 36NTU.
These are only embodiments of the present invention, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (5)
1. a preparation method for water treatment agent, is characterized in that, comprises the steps:
Step one: get raw material by weight proportion: phosphonate 12-16 part, poly-quaternary ammonium salt 8-12 part, polycarboxylate 25-35 part, organic phosphonate 5-10 part, co-polymer of sulfonate 40-45 part;
Step 2: phosphonate, poly-quaternary ammonium salt and water are joined in reactor, fully stirs;
Step 3: heat 1-1.5 hour at a certain temperature, make phosphonate and poly-quaternary ammonium salt be dissolved as glue;
Step 4: by the colloidal mixture cooling in step 3, add polycarboxylate and organic phosphonate while stirring, simultaneously raised temperature, and stir 0.5 hour at such a temperature;
Step 5: lowered the temperature by the mixture in step 4, add co-polymer of sulfonate while stirring simultaneously, after treating that co-polymer of sulfonate adds, continues stirring 0.5 hour;
Step 6: the mixture in step 5 carried out discharging, cooling, drying and pulverize, thus obtaining water treatment agent.
2. the preparation method of a kind of water treatment agent according to claim 1, is characterized in that, in medicament, the weight percent of each component is as follows: phosphonate 13 parts, poly-quaternary ammonium salt 10 parts, polycarboxylate 29 parts, organic phosphonate 8 parts, co-polymer of sulfonate 40 parts.
3. the preparation method of a kind of water treatment agent according to claim 1, is characterized in that, the certain temperature in step 3 is 75-85 DEG C.
4. the preparation method of a kind of water treatment agent according to claim 1, is characterized in that, the stirring of step 4 is carried out at 75-80 DEG C.
5. the preparation method of a kind of water treatment agent according to claim 1, is characterized in that, the stirring in step 5 is carried out at 20-25 DEG C.
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| CN201410636562.5A CN104386839A (en) | 2014-11-13 | 2014-11-13 | Preparation method of water treatment agent |
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| CN201410636562.5A CN104386839A (en) | 2014-11-13 | 2014-11-13 | Preparation method of water treatment agent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498919A (en) * | 2019-10-21 | 2020-08-07 | 李趁强 | Water treatment agent |
| CN116282441A (en) * | 2023-05-24 | 2023-06-23 | 山东吉昌龙环境工程有限公司 | Preparation method of efficient flocculant |
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| WO2002008127A1 (en) * | 2000-07-20 | 2002-01-31 | Rhodia Consumer Specialties Limited | Treatment of iron sulphide deposits |
| CN1807287A (en) * | 2006-02-14 | 2006-07-26 | 高同柱 | Highly effective multifunctional reverse osmosis membrane antiscaling agent and its preparation method |
| CN101374923A (en) * | 2006-01-13 | 2009-02-25 | 冠军科技有限公司 | Scale inhibiting well treatment |
| CN102115265A (en) * | 2009-12-31 | 2011-07-06 | 南京理工大学 | Special compound type antisludging agent for seawater desalinization by hot method |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002008127A1 (en) * | 2000-07-20 | 2002-01-31 | Rhodia Consumer Specialties Limited | Treatment of iron sulphide deposits |
| CN101374923A (en) * | 2006-01-13 | 2009-02-25 | 冠军科技有限公司 | Scale inhibiting well treatment |
| CN1807287A (en) * | 2006-02-14 | 2006-07-26 | 高同柱 | Highly effective multifunctional reverse osmosis membrane antiscaling agent and its preparation method |
| CN102115265A (en) * | 2009-12-31 | 2011-07-06 | 南京理工大学 | Special compound type antisludging agent for seawater desalinization by hot method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498919A (en) * | 2019-10-21 | 2020-08-07 | 李趁强 | Water treatment agent |
| CN116282441A (en) * | 2023-05-24 | 2023-06-23 | 山东吉昌龙环境工程有限公司 | Preparation method of efficient flocculant |
| CN116282441B (en) * | 2023-05-24 | 2023-09-12 | 山东吉昌龙环境工程有限公司 | Preparation method of flocculant for catalytic cracking flue gas desulfurization and denitrification wastewater |
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Application publication date: 20150304 |