CN110002566A - A kind of continuous method for removing chloride ion in Water Quenching Slag recirculated water of low cost - Google Patents
A kind of continuous method for removing chloride ion in Water Quenching Slag recirculated water of low cost Download PDFInfo
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- CN110002566A CN110002566A CN201910303240.1A CN201910303240A CN110002566A CN 110002566 A CN110002566 A CN 110002566A CN 201910303240 A CN201910303240 A CN 201910303240A CN 110002566 A CN110002566 A CN 110002566A
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2101/12—Halogens or halogen-containing compounds
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
Abstract
The present invention relates to sewage treatment fields, more particularly to the method for chloride ion in a kind of continuous removal Water Quenching Slag recirculated water of low cost, include: step 1: producing aluminium hydroxide as silicon source, using one of calcium oxide or calcium hydroxide as calcium source after the aluminium processing in recycling alum sludge；Step 2: chloride ion total amount in water, calcium, aluminium dosing are calculated according to the Water Quenching Slag of measurement recirculated water chlorine ion concentration value；Step 3: being stirred to react to Water Quenching Slag with addition medicament in recirculated water, stand filtering, the chloride ion content in recirculated water is detected after filtering；Step 4: being passed through carbon dioxide and adjust recirculated water pH less than 8.5, treated, and recirculated water can be used for secondary or multiple dechlorination, condition is entirely by reference to preceding step, after constant dechlorination, water quality reaching standard uses for circulation water quenching, the method of the present invention makes full use of renewable resource, energy conservation and environmental protection, medicament is cheap and easy to get, and treatment effeciency is high.
Description
Technical field
The present invention relates to sewage treatment fields, more particularly, to a kind of continuous removal Water Quenching Slag recirculated water of low cost
The method of middle chloride ion.
Background technique
Water quenching technology is the widely applied Solid state fermentation technique of metallurgy industry, due to using water and amount of makeup water in water quenching technology
Greatly, so water quenching technology is recycled for a long time with water, and the chloride ion that waste residue and supplement water are brought into can be enriched in the circulatory system,
Reach a certain concentration post-etching pipeline, and be attached to Water Quenching Slag surface, influences Water Quenching Slag quality.How Water Quenching Slag circulation is removed
Chloride ion becomes a problem urgently to be resolved in water.
The chloride ion removal technology in industrial wastewater is applied mainly include the following types: (1) deposited salt mode at present；(2) it steams
Send out concentration method；(3) Electro Sorb method；(4) ion-exchange；(5) flocculation sedimentation, solvent extraction；(6) electroosmose process, with top
Method handles continuity and high-concentration chlorine ion removal aspect has some limitations in cost.
Publication number CN107055868A, the invention of entitled " a kind of processing method of high-concentration chlorine ion industrial wastewater " are special
Benefit discloses a kind of method for removing removing chloride with sodium metaaluminate and calcium oxide, due to sodium metaaluminate (41%Al per ton2O3) cost
5600 yuan, this method cost of material is higher；And the pH of treated water sample reaches 13 or so, due to often needing repeatedly continuously to remove
Chlorine, alkaline water quality will be greatly reduced the effect of secondary dechlorination, also do not meet the industrial cycle water quality standard of national requirements, influence pipeline
And Water Quenching Slag quality.Therefore how efficiently to remove chloride ion in Water Quenching Slag recirculated water becomes technical problem urgently to be resolved.
Summary of the invention
For overcome it is above-mentioned go it is at high cost existing for removing chloride method and processing after water quality pH it is not up to standard influence continuously remove
The drawbacks problem such as chlorine, the present invention provides a kind of method of chloride ion in continuous removal Water Quenching Slag recirculated water, this method is abundant
Using renewable resource, aluminium content is high in alum sludge, recycles one ton of aluminium hydroxide cost about at 1500 yuan or so, and
One ton of aluminium hydroxide cost is bought about at 2500 yuan, solves the problems, such as that cost of material is high.It is adjusted back simultaneously by carbon dioxide
PH ensure that the efficiency of constant dechlorination is always held at 65% or more, not by alkaline water quality impact.It can be by single or continuous
Dechlorination, chlorine ion concentration in Water Quenching Slag recirculated water is reduced to 250mg/L hereinafter, pH be down to 8.5 hereinafter, guarantee circulation line and
Water Quenching Slag quality.
In order to achieve the above objectives, the present invention provides a kind of continuous method of chloride ion in removal Water Quenching Slag recirculated water,
It is characterized in that, the steps include:
Step 1: sludge is first passed through molten, the dissolution fluid P204- of sour acid as silicon source by the aluminium in recycling alum sludge
Kerosene carries out three-level extraction, then with acid back extraction, and it is 6~8 to produce aluminium hydroxide as silicon source that strip liquor, which adjusts pH using ammonium hydroxide, with
One of calcium oxide or calcium hydroxide are spare as calcium source；
Step 2: chloride ion total amount in water, calcium, aluminium medicine are calculated according to the Water Quenching Slag of measurement recirculated water chlorine ion concentration value
Agent dosage；
Step 3: it is stirred to react to Water Quenching Slag with addition calcium, aluminium medicament in recirculated water, controls temperature and reaction time,
Filtering is stood, the chloride ion content in recirculated water is detected after filtering；
Step 4: ventilated using a kind of simple distribution device into water: one is closed and is equipped with several apertures in closed end
Glass U-tube is passed through carbon dioxide and adjusts recirculated water pH less than 8.5；Treated, and recirculated water can be used for secondary or multiple dechlorination,
Condition is entirely by reference to preceding step, and after constant dechlorination, chlorine ion concentration is less than 250mg/L in water, when pH is less than 8.5, for following
Ring water quenching uses.
Preferably, acid described in step 1 is sulfuric acid, and sour molar concentration 1mol/L~3mol/L controls pH value of solution after acid is molten
Value is 1~3.5.
Preferably, the molten reaction time of acid described in step 1 is 20min~1h.
Preferably, P204- kerosene extraction agent described in step 1 and liquor capacity ratio are 1:1~1:3.
Preferably, back extraction acid described in step 1 is sulfuric acid, and concentration is 3mol/L~5mol/L.
Preferably, back extraction described in step 1 is 3:1~5:1 compared to (Vo/VA).
Preferably, the molar ratio of chloride ion is Ca in medicament, water described in step 22+: Al3+: Cl is 2~10:1~3:1, excellent
Select 2~6:1.5~2.5:1.
Preferably, step 3 temperature is 25~40 DEG C, and the reaction time is 1~3h, preferably 1.5~2.5h.
Preferably, carbon dioxide described in step 4 can with one closing and be equipped with several apertures in closed end, diameter is less than 1
The glass U-tube of micron is passed through recirculated water.
Chemical principle of the invention is as follows:
Aluminium hydroxide is added into the recirculated water of chloride ion-containing as silicon source, with one of calcium oxide or calcium hydroxide
As calcium source, reaction condition is controlled, the minimum calcium aluminium chlorine compound Ca of solubility is mainly generated4Al2Cl2(OH)12, reach removal
The effect of chloride ion.
Following reaction occurs:
4Ca(OH)2+2Al(OH)3=Ca4Al2(OH)14
Ca4Al2(OH)14+2Cl-=Ca4Al2Cl2(OH)12
The reaction of superelevation lime aluminium method is more complex, exists simultaneously following chemical balance:
Ca4Al2Cl2(OH)12+2OH-=Ca4Al2(OH)14+2Cl-
Document report: interlayer anion exchange sequence OH-> F-> Cl-> Br-> NO3 -》CO3 2-, so OH in water-It is more,
Initial pH high can obviously inhibit the efficiency of secondary dechlorination, it is possible to be passed through CO2Adjust pH:
OH-+CO2=HCO3 -
PH in water after chlorine at reduction, keeps the efficiency of constant dechlorination, and with sulfuric acid, the acid solutions such as nitric acid, which adjust pH, obviously to be pressed down
Calcium aluminium chlorine compound Ca processed4Al2Cl2(OH)12Generation, cost is also apparently higher than CO2Technique is adjusted, while being passed through CO2It can eliminate
Structural materials calcium carbonate degree of supersaturation:
CaCO3+CO2+H2O=Ca (HCO3)2
After the recirculated water of Water Quenching Slag containing high-concentration chlorine ion is processed by the invention, can constant dechlorination, chlorine ion concentration can drop
250mg/L is hereinafter, pH is down to 8.5 hereinafter, the regeneration for fully meeting national requirements is used as the chlorine ion concentration at industrial water water source
And " technique and product water supply standard " in pH standard (GB/T19923-2005).
Compared with prior art, technical solution provided by the invention has the following beneficial effects:
The method of chloride ion in the continuous removal Water Quenching Slag recirculated water of one kind of the invention, this method makes full use of renewable
Resource, energy conservation and environmental protection is low in cost, and method is simple.It ensure that the high efficiency and continuity for continuously removing removing chloride, solve chlorine
Ion enrichment reduces the chloride ion content of Water Quenching Slag attachment to the etching problem of equipment pipe.
Specific embodiment
The present invention will be further described with reference to the examples below:
Embodiment 1
Step 1: the aluminium in recycling alum sludge is first sour by the sulfuric acid that concentration is 1mol/L by sludge as silicon source
Molten, acid solution pH is 3.5 for control, reaction time 20min；Dissolution fluid is in the agent of P204- kerosene extraction and liquor capacity than for 1:1's
Under the conditions of carry out three-level extraction；(V is being compared with the sulfuric acid of 5mol/L againO:VA) be 5:1 under the conditions of carry out three-level back extraction；Strip liquor
PH to 6 is adjusted using ammonium hydroxide, filtering precipitating produces aluminium hydroxide as silicon source, using calcium oxide as calcium source；
Step 2: the Water Quenching Slag of measurement is 5036mg/L with chlorine ion concentration in recirculated water, takes 1L recirculated water in beaker,
According to chloride ion total amount in chlorine ion concentration value calculating water, the molar ratio of dosing and chloride ion is Ca2+: Al3+: Cl-=4:
1.5:1；
Step 3: being stirred to react to Water Quenching Slag with addition medicament in recirculated water, control reaction temperature is 25 DEG C, reaction
Time is 120min, mixing speed 400r/min；Filtering is stood, the chloride ion content 1662mg/ in recirculated water is detected after filtering
L, single removal rate 67.0%；
Step 4: ventilated using a kind of simple distribution device into water: one is closed and is equipped with several apertures in closed end
The glass U-tube of (diameter is less than 1 micron) is passed through carbon dioxide and adjusts recirculated water pH less than 8.5；Treated, and recirculated water carries out
Constant dechlorination, after condition is entirely by reference to preceding step, then continuous 2 dechlorinations, chlorine ion concentration is 184mg/L in water, is less than
250mg/L, pH are used less than 8.5 for circulation water quenching.
Embodiment 2
Step 1: the aluminium in recycling alum sludge is first sour by the sulfuric acid that concentration is 3mol/L by sludge as silicon source
Molten, acid solution pH is 1 for control, reaction time 1h；Dissolution fluid is in the agent of P204- kerosene extraction and liquor capacity than the condition for 1:3
Lower progress three-level extraction；(V is being compared with the sulfuric acid of 3mol/L againO:VA) be 3:1 under the conditions of carry out three-level back extraction；Strip liquor utilizes
Ammonium hydroxide adjusts pH to 7, and filtering precipitating produces aluminium hydroxide as silicon source, using calcium oxide as calcium source；
Step 2: the Water Quenching Slag of measurement is 5036mg/L with chlorine ion concentration in recirculated water, takes 1L recirculated water in beaker.
According to chloride ion total amount in chlorine ion concentration value calculating water, the molar ratio of dosing and chloride ion is Ca2+: Al3+: CI-=5:
2:1；
Step 3: being stirred to react to Water Quenching Slag with addition medicament in recirculated water, control reaction temperature is 30 DEG C, reaction
Time is 120min, mixing speed 400r/min；Filtering is stood, the chloride ion content 1496mg/ in recirculated water is detected after filtering
L, single removal rate 70.3%；
Step 4: ventilated using a kind of simple distribution device into water: one is closed and is equipped with several apertures in closed end
The glass U-tube of (diameter is less than 1 micron).It is passed through carbon dioxide and adjusts recirculated water pH less than 8.5；Treated, and recirculated water carries out
Constant dechlorination, after condition is entirely by reference to preceding step, then continuous 2 dechlorinations, chlorine ion concentration is 133mg/L in water, is less than
250mg/L, pH are used less than 8.5 for circulation water quenching.
Embodiment 3
Step 1: sludge is first passed through concentration are as follows: the sulfuric acid of 2mol/L as silicon source by the aluminium in recycling alum sludge
Acid is molten, and acid solution pH is 2.5 for control, reaction time 40min；Dissolution fluid is 1:2 in the agent of P204- kerosene extraction and liquor capacity ratio
Under conditions of carry out three-level extraction；(V is being compared with the sulfuric acid of 3mol/L againO:VA) be 4:1 under the conditions of carry out three-level back extraction；Back extraction
Liquid adjusts pH to 8 using ammonium hydroxide, and filtering precipitating produces aluminium hydroxide as silicon source, using calcium oxide as calcium source；
Step 2: the Water Quenching Slag of measurement is 5036mg/L with chlorine ion concentration in recirculated water, takes 1L recirculated water in beaker.
According to chloride ion total amount in chlorine ion concentration value calculating water, the molar ratio of dosing and chloride ion is Ca2+: Al3+: CI-=10:
2.5:1；
Step 3: being stirred to react to Water Quenching Slag with addition medicament in recirculated water, control reaction temperature is 35 DEG C, reaction
Time is 150min, mixing speed 400r/min；Filtering is stood, the chloride ion content 1003mg/ in recirculated water is detected after filtering
L, single removal rate 80.1%；
Step 4: ventilated using a kind of simple distribution device into water: one is closed and is equipped with several apertures in closed end
The glass U-tube of (diameter is less than 1 micron) is passed through carbon dioxide and adjusts recirculated water pH less than 8.5；Treated, and recirculated water carries out
Constant dechlorination, after condition is entirely by reference to preceding step, then continuous 1 dechlorination, chlorine ion concentration is 202mg/L in water, is less than
250mg/L, pH are used less than 8.5 for circulation water quenching.
Embodiment 4
Step 1: sludge is first passed through concentration are as follows: the sulfuric acid of 1mol/L as silicon source by the aluminium in recycling alum sludge
Acid is molten, and acid solution pH is 3 for control, reaction time 30min；Dissolution fluid is in the agent of P204- kerosene extraction and liquor capacity than for 1:3's
Under the conditions of carry out three-level extraction；(V is being compared with the sulfuric acid of 4mol/L againO:VA) be 3:1 under the conditions of carry out three-level back extraction；Strip liquor
PH to 7.5 is adjusted using ammonium hydroxide, filtering precipitating produces aluminium hydroxide as silicon source, using calcium oxide as calcium source；
Step 2: the Water Quenching Slag of measurement is 5036mg/L with chlorine ion concentration in recirculated water, takes 1L recirculated water in beaker,
According to chloride ion total amount in chlorine ion concentration value calculating water, the molar ratio of dosing and chloride ion is Ca2+: Al3+: CI-=5:
2:1；
Step 3: medicament is added and is stirred to react, control reaction temperature is 40 DEG C, reaction time 120min, stirring speed
Spend 400r/min；Filtering is stood, the chloride ion content 1374mg/L in recirculated water, single removal rate 72.7% are detected after filtering；
Step 4: ventilated using a kind of simple distribution device into water: one is closed and is equipped with several apertures in closed end
The glass U-tube of (diameter is less than 1 micron) is passed through carbon dioxide and adjusts recirculated water pH less than 8.5；Treated, and recirculated water carries out
Constant dechlorination, after condition is entirely by reference to preceding step, then continuous 2 dechlorinations, chlorine ion concentration is 106mg/L in water, is less than
250mg/L, pH are used less than 8.5 for circulation water quenching.
Embodiment 5
Step 1: sludge is first passed through concentration are as follows: the sulphur of 2.5mol/L as silicon source by the aluminium in recycling alum sludge
Sour acid is molten, and control acid solution pH is 1.5, reaction time 20min；Dissolution fluid is in the agent of P204- kerosene extraction and liquor capacity ratio
Three-level extraction is carried out under conditions of 1:2；(V is being compared with the sulfuric acid of 3mol/L againO:VA) be 4:1 under the conditions of carry out three-level back extraction；
Strip liquor adjusts pH to 6.5 using ammonium hydroxide, and filtering precipitating produces aluminium hydroxide as silicon source, using calcium hydroxide as calcium source；
Step 2: the Water Quenching Slag of measurement is 5036mg/L with chlorine ion concentration in recirculated water, takes 1L recirculated water in beaker,
According to chloride ion total amount in chlorine ion concentration value calculating water, the molar ratio of dosing and chloride ion is Ca2+: Al3+: CI-=10:
1.5:1；
Step 3: being stirred to react to Water Quenching Slag with addition medicament in recirculated water, control reaction temperature is 40 DEG C, reaction
Time is 150min, mixing speed 400r/min；Filtering is stood, the chloride ion content 1042mg/ in recirculated water is detected after filtering
L, single removal rate 79.3%；
Step 4: ventilated using a kind of simple distribution device into water: one is closed and is equipped with several apertures in closed end
The glass U-tube of (diameter is less than 1 micron) is passed through carbon dioxide and adjusts recirculated water pH less than 8.5；Treated, and recirculated water carries out
Constant dechlorination, after condition is entirely by reference to preceding step, then continuous 1 dechlorination, chlorine ion concentration is 218mg/L in water, is less than
250mg/L, pH are used less than 8.5 for circulation water quenching.
Schematically the present invention and embodiments thereof are described above, description is not limiting, actual side
Method is not limited thereto.So not departing from the invention objective if those of ordinary skill in the art are inspired by it
In the case of, frame mode similar with the technical solution and embodiment are not inventively designed, should belong to of the invention
Protection scope.
Claims (9)
1. a kind of method of chloride ion in continuous removal Water Quenching Slag recirculated water, which is characterized in that the steps include:
Step 1: sludge is first passed through sour molten, the dissolution fluid P204- kerosene of acid as silicon source by the aluminium in recycling alum sludge
Three-level extraction is carried out, then with acid back extraction, it is 6~8 that strip liquor, which adjusts pH using ammonium hydroxide, produces aluminium hydroxide as silicon source, with oxygen
It is spare as calcium source to change one of calcium or calcium hydroxide；
Step 2: chloride ion total amount in water being calculated according to the Water Quenching Slag of measurement recirculated water chlorine ion concentration value, calcium, aluminium medicament are used
Amount；
Step 3: being stirred to react to Water Quenching Slag with addition calcium, aluminium medicament in recirculated water, control temperature and reaction time, stand
Filtering detects the chloride ion content in recirculated water after filtering；
Step 4: ventilated using a kind of simple distribution device into water: one is closed and is equipped with the glass of several apertures in closed end
U-tube is passed through carbon dioxide and adjusts recirculated water pH less than 8.5；Treated, and recirculated water can be used for secondary or multiple dechlorination, condition
Entirely by reference to preceding step, after constant dechlorination, chlorine ion concentration is less than 250mg/L in water, when pH is less than 8.5, for recirculated water
It quenches use.
2. according to the method described in claim 1, sulfuric acid rubs it is characterized in that acid molten for acid described in step 1 is sulfuric acid
You are concentration 1mol/L~3mol/L, and control solution ph is 1~3.5 after acid is molten.
3. according to the method described in claim 1, it is characterized in that the molten reaction time of acid described in step 1 is 20min~1h.
4. according to the method described in claim 1, it is characterized in that P204- kerosene extraction agent described in step 1 and liquor capacity ratio
For 1:1~1:3.
5. according to the method described in claim 1, it is characterized in that described in step 1 back extraction acid be sulfuric acid, concentration be 3mol/L~
5mol/L。
6. according to the method described in claim 1, it is characterized in that it is 3:1~5:1 that (Vo/VA) is compared in back extraction described in step 1.
7. according to the method described in claim 1, it is characterized in that the molar ratio of chloride ion is Ca in medicament, water described in step 22 +: Al3+: Cl is 2~10:1~3:1, preferably 2~6:1.5~2.5:1.
8. according to the method described in claim 1, it is characterized in that step 3 temperature be 25~40 DEG C, the reaction time be 1~3h,
It is preferred that 1.5~2.5h.
9. according to the method described in claim 1, it is characterized in that carbon dioxide described in step 4 can be closed and closed with one
End is equipped with several apertures, and glass U-tube of the diameter less than 1 micron is passed through recirculated water.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573970A (en) * | 2020-05-06 | 2020-08-25 | 中南大学 | Method for treating coking wastewater by physicochemical and biochemical combination |
| CN111606680A (en) * | 2019-07-30 | 2020-09-01 | 北新集团建材股份有限公司 | Formaldehyde-purifying gypsum board and preparation method thereof |
| CN111606681A (en) * | 2019-07-30 | 2020-09-01 | 北新集团建材股份有限公司 | Paper-surface gypsum board and preparation method thereof |
| CN113072158A (en) * | 2021-04-02 | 2021-07-06 | 上海海事大学 | Process method for pre-removing seawater chloride ions based on ultrahigh lime-aluminum method |
| CN113173588A (en) * | 2021-05-21 | 2021-07-27 | 昆明理工大学 | Calcium sulfate aluminum method for dechlorinating ammonium sulfate mother liquor |
| CN113511739A (en) * | 2021-04-13 | 2021-10-19 | 兰州石化职业技术学院 | Preparation method of low-chlorination external-drainage recycled circulating water |
| CN114409036A (en) * | 2021-11-17 | 2022-04-29 | 山东鲁泰控股集团有限公司 | Method for reducing content of chloride ions in circulating water in chlor-alkali chemical industry |
| CN115401060A (en) * | 2022-08-24 | 2022-11-29 | 浙江红狮环保股份有限公司 | Method for removing chlorine content in organic hazardous waste |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337292A (en) * | 2016-11-17 | 2017-11-10 | 华北电力大学（保定） | The technological process of advanced treating desulfurization wastewater |
-
2019
- 2019-04-16 CN CN201910303240.1A patent/CN110002566A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337292A (en) * | 2016-11-17 | 2017-11-10 | 华北电力大学（保定） | The technological process of advanced treating desulfurization wastewater |
Non-Patent Citations (2)
| Title |
|---|
| 徐美燕等: "萃取法回收水厂污泥中铝的技术研究 I.清液萃取法", 《华东理工大学学报（自然科学版）》 * |
| 陶长元等: "《电解锰节能减排理论与工程应用》", 30 November 2018, 重庆大学出版社 * |
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| CN111606681A (en) * | 2019-07-30 | 2020-09-01 | 北新集团建材股份有限公司 | Paper-surface gypsum board and preparation method thereof |
| CN111606680B (en) * | 2019-07-30 | 2022-03-29 | 北新集团建材股份有限公司 | Formaldehyde-purifying gypsum board and preparation method thereof |
| CN111573970A (en) * | 2020-05-06 | 2020-08-25 | 中南大学 | Method for treating coking wastewater by physicochemical and biochemical combination |
| CN113072158A (en) * | 2021-04-02 | 2021-07-06 | 上海海事大学 | Process method for pre-removing seawater chloride ions based on ultrahigh lime-aluminum method |
| CN113511739A (en) * | 2021-04-13 | 2021-10-19 | 兰州石化职业技术学院 | Preparation method of low-chlorination external-drainage recycled circulating water |
| CN113173588A (en) * | 2021-05-21 | 2021-07-27 | 昆明理工大学 | Calcium sulfate aluminum method for dechlorinating ammonium sulfate mother liquor |
| CN113173588B (en) * | 2021-05-21 | 2023-09-15 | 昆明理工大学 | Calcium aluminum sulfate method for removing chlorine from ammonium sulfate mother liquor |
| CN114409036A (en) * | 2021-11-17 | 2022-04-29 | 山东鲁泰控股集团有限公司 | Method for reducing content of chloride ions in circulating water in chlor-alkali chemical industry |
| CN115401060A (en) * | 2022-08-24 | 2022-11-29 | 浙江红狮环保股份有限公司 | Method for removing chlorine content in organic hazardous waste |
| CN115401060B (en) * | 2022-08-24 | 2023-11-14 | 浙江红狮环保股份有限公司 | Method for removing chlorine content from organic hazardous waste |
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