CN112093832B - Preparation method of medicament for treating ammonia nitrogen wastewater - Google Patents
Preparation method of medicament for treating ammonia nitrogen wastewater Download PDFInfo
- Publication number
- CN112093832B CN112093832B CN202010991989.2A CN202010991989A CN112093832B CN 112093832 B CN112093832 B CN 112093832B CN 202010991989 A CN202010991989 A CN 202010991989A CN 112093832 B CN112093832 B CN 112093832B
- Authority
- CN
- China
- Prior art keywords
- ammonia nitrogen
- solution
- powder
- modified
- montmorillonite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000002351 wastewater Substances 0.000 title claims abstract description 24
- 239000003814 drug Substances 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 30
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 21
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000010457 zeolite Substances 0.000 claims abstract description 21
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 19
- 239000011780 sodium chloride Substances 0.000 claims abstract description 19
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims abstract description 9
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims abstract description 9
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims abstract description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 39
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 15
- 239000011812 mixed powder Substances 0.000 claims description 12
- 239000003153 chemical reaction reagent Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 5
- 238000007865 diluting Methods 0.000 claims description 3
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical group O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 claims description 2
- 229910001603 clinoptilolite Inorganic materials 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 230000004048 modification Effects 0.000 abstract description 9
- 238000012986 modification Methods 0.000 abstract description 9
- 238000005342 ion exchange Methods 0.000 abstract description 8
- 239000002808 molecular sieve Substances 0.000 abstract description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000009388 chemical precipitation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000012528 membrane Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004737 colorimetric analysis Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- -1 ammonium ions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- DTQADTCKBSDHSU-UHFFFAOYSA-L potassium mercury(1+) diiodide Chemical compound [Hg+].[I-].[K+].[I-] DTQADTCKBSDHSU-UHFFFAOYSA-L 0.000 description 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 description 1
- 229940074439 potassium sodium tartrate Drugs 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention relates to a wastewater treatment technologyThe technical field, in particular to a preparation method of a medicament for treating ammonia nitrogen wastewater, which adopts a modified solution A and a modified solution B to carry out modified treatment on solid powder mixed by zeolite powder and montmorillonite powder to obtain the medicament for treating the ammonia nitrogen wastewater; the modified solution A comprises NaCl and polyvinylpyrrolidone; the modified solution B comprises NaCl, phosphoric acid and Mg (OH) 2。 According to the invention, zeolite powder and montmorillonite powder are mixed and modified to prepare the molecular sieve for absorbing ammonia nitrogen through ion exchange, and the zeolite powder and montmorillonite are mixed, so that the porosity is increased, and the exchange adsorption efficiency is improved; the invention adopts the modification solution A and the modification solution B to carry out the modification process in sequence, utilizes the modification effect of NaCl and polyvinylpyrrolidone to improve the ammonia nitrogen absorption efficiency of ion exchange, and simultaneously utilizes phosphoric acid and Mg (OH) 2 Increasing the chemical precipitation capacity.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a preparation method of a medicament for treating ammonia nitrogen wastewater.
Background
The ammonia nitrogen wastewater mainly comes from chemical fertilizers, coking, petrifaction, pharmacy, foods, refuse landfills and the like, a large amount of ammonia nitrogen wastewater is discharged into a water body, so that water eutrophication is caused, black and odorous water is caused, the difficulty and cost of water supply treatment are increased, even toxic action is generated to crowds and organisms, and a blow-off method, an ion exchange method, a membrane separation method, an MAP precipitation method, a chemical oxidation method and a biological method are adopted for treating the ammonia nitrogen wastewater.
The stripping method is a method for separating ammonia nitrogen by utilizing the gas-liquid equilibrium relationship between the gas-phase concentration and the liquid-phase concentration of ammonia nitrogen under the alkaline condition, and the stripping efficiency is greatly influenced by temperature, PH and the gas-liquid ratio. The ion exchange method is to exchange cations in the molecular sieve with NH4+ in the wastewater to achieve the purpose of denitrification, and the regeneration problem of the molecular sieve seriously affects the application of the method. The membrane separation method is a method for removing ammonia nitrogen by utilizing the selective permeability of a membrane. The ammonia nitrogen removal efficiency is greatly influenced by concentration, pressure and temperature. The MAP precipitation method mainly utilizes the following chemical reactions: mg2+ + NH4+ + PO43- = MgNH4PO4 removes ammonia nitrogen in the waste water, and the method is high in cost and easy to generate secondary pollution. The chemical oxidation method is a method for removing ammonia nitrogen by directly oxidizing the ammonia nitrogen into nitrogen by using a strong oxidant, and the generated residual chlorine can cause secondary pollution. The biological denitrification method utilizes a two-stage activated sludge method, strong-oxidation aerobic biological treatment and short-cut nitrification and denitrification to treat ammonia nitrogen, and occupies a large area.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a low-cost, high-efficiency, green and environment-friendly medicament for treating ammonia nitrogen wastewater and a preparation method thereof.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a preparation method of a medicament for treating ammonia nitrogen wastewater comprises the following steps:
1) Crushing zeolite, namely crushing the zeolite by adopting a crusher, and sieving by using a 50-100-mesh standard sieve to obtain zeolite powder;
2) Crushing montmorillonite, namely crushing montmorillonite by using a crusher, and sieving by using a standard sieve of 80-120 meshes to obtain montmorillonite powder;
3) Rinsing with methanol, namely mixing the zeolite powder obtained in the step 1) and the montmorillonite powder obtained in the step 2) according to a mass ratio of 1: (0.1-0.3), uniformly mixing, and rinsing with methanol for not less than 3 times to obtain mixed powder;
4) Drying, namely putting the mixed powder obtained in the step 3) into a drying oven, and drying for 3-6h at 30-60 ℃ to obtain dry mixed powder;
5) Preparing a modified solution A, namely preparing a 1.2-1.5mol/L NaCl solution, and adding 0.3-0.5% of polyvinylpyrrolidone into the NaCl solution to obtain the modified solution A;
6) Preparing modified solution B by diluting 85% phosphoric acid with 0.3-0.5mol/L NaCl solution 2-4 times, adding 10-20% Mg (OH) 2 Obtaining a modified solution B;
7) Immersing the dried mixed powder obtained in the step 4) into the modified solution A obtained in the step 5), heating to 40-60 ℃, uniformly stirring for 6-12h, taking out the powder, and drying for 3-5h at the temperature of 100-150 ℃ to obtain a first modified medicament;
8) Adding the first modified reagent obtained in the step 7) into the modified solution B obtained in the step 6), heating to 30-80 ℃, uniformly stirring for 5-10h, taking out the reagent, and drying at 200-300 ℃ for 1-2h to obtain the reagent for treating ammonia nitrogen wastewater.
Further, the zeolite in the step 1) is clinoptilolite.
Further, the mass ratio of the zeolite powder to the montmorillonite powder in the step 3) is preferably 1:0.15.
further, the concentration of the NaCl solution in the step 5) is preferably 1.2 mol/L.
Further, the proportion of polyvinylpyrrolidone in the step 5) is preferably 0.4%.
Further, the concentration of the NaCl solution in the step 6) is preferably 0.3mol/L.
Further, the dilution ratio in the step 6) is preferably 2 times.
Further, said Mg (OH) 2 The proportion is preferably 15%.
The agent is obtained by modifying mixed solid powder by adopting a modified solution A and a modified solution B; the modified solution A comprises NaCl and polyvinylpyrrolidone; the modified solution B comprises NaCl, phosphoric acid and Mg (OH) 2。
Compared with the prior art, the invention has the beneficial effects that:
1) According to the invention, zeolite powder and montmorillonite powder are mixed and modified to prepare the molecular sieve for absorbing ammonia nitrogen by ion exchange, and the zeolite powder and montmorillonite are mixed, so that the porosity is increased, and the exchange adsorption efficiency is improved;
2) The invention adopts the modification solution A and the modification solution B to carry out modification process in sequence, and utilizes the modification effect of NaCl and polyvinylpyrrolidone to promote separationEfficiency of ammonia nitrogen absorption by ion exchange while using phosphoric acid and Mg (OH) 2 Increasing the chemical precipitation capacity.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
Example 1 preparation of agent for treatment of Ammonia Nitrogen wastewater
1) Crushing zeolite, namely crushing the zeolite by adopting a crusher, and sieving by using an 80-mesh standard sieve to obtain zeolite powder;
2) Crushing montmorillonite, namely crushing montmorillonite by using a crusher, and screening by using a 120-mesh standard sieve to obtain montmorillonite powder;
3) Rinsing with methanol, namely mixing the zeolite powder obtained in the step 1) and the montmorillonite powder obtained in the step 2) according to a mass ratio of 1:0.15, mixing, rinsing with methanol for 3 times to obtain mixed powder;
4) Drying, namely putting the mixed powder obtained in the step 3) into a drying oven, and drying for 3 hours at 60 ℃ to obtain dry mixed powder;
5) Preparing a modified solution A, namely preparing a 1.2mol/L NaCl solution, and adding 0.4% of polyvinylpyrrolidone into the NaCl solution to obtain the modified solution A;
6) Preparing modified solution B by diluting 85% phosphoric acid 2 times with 0.3mol/L NaCl solution, adding 15% Mg (OH) 2 Obtaining a modified solution B;
7) Immersing the dried mixed powder obtained in the step 4) into the modified solution A obtained in the step 5), heating to 60 ℃, uniformly stirring for 12 hours, taking out the powder, and drying for 3 hours at the temperature of 100 ℃ to obtain a first modified medicament;
8) Adding the first modified reagent obtained in the step 7) into the modified solution B obtained in the step 6), heating to 80 ℃, stirring and uniformly mixing for 5h, taking out the reagent, and drying for 2h at 300 ℃ to obtain the reagent for treating ammonia nitrogen wastewater.
Example 2 Ammonia-nitrogen wastewater treatment
2.1, collecting the ammonia nitrogen wastewater, adopting a Nassner reagent colorimetric method (GB 7479-87), taking potassium sodium tartrate as a masking agent under an alkaline condition, forming a yellow-brown complex by mercury potassium iodide and ammonium ions, measuring the absorbance of ammonia nitrogen by using a 721 type spectrophotometer, and solving the ammonia nitrogen concentration in the ammonia nitrogen wastewater according to a standard curve equation.
2.2 Preparation of ion exchange device, the medicament for treating ammonia nitrogen wastewater of the invention prepared in example 1 is filled into a cylindrical container, two ends are fixed by sieve plates, and a water inlet and a water outlet are arranged
2.3, treating ammonia nitrogen, namely injecting the wastewater collected in the step 2.1 into the ion exchange equipment prepared in the step 2.2, collecting the treated water through a water outlet, calculating the ammonia nitrogen residual concentration in the water according to a standard curve equation by adopting a Nagowski reagent colorimetric method (GB 7479-87), and calculating to obtain the ammonia nitrogen removal efficiency as high as 97.3%.
The embodiment shows that the method is low in cost, high in efficiency, green and environment-friendly, and suitable for large-scale application in ammonia nitrogen wastewater treatment.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. The preparation method of the medicament for treating the ammonia nitrogen wastewater is characterized by comprising the following steps of:
1) Crushing zeolite, namely crushing the zeolite by adopting a crusher, and sieving by using a 50-100-mesh standard sieve to obtain zeolite powder;
2) Crushing montmorillonite, namely crushing montmorillonite by using a crusher, and sieving by using a standard sieve of 80-120 meshes to obtain montmorillonite powder;
3) Rinsing with methanol, namely mixing the zeolite powder obtained in the step 1) and the montmorillonite powder obtained in the step 2) according to a mass ratio of 1: (0.1-0.3), uniformly mixing, rinsing with methanol for at least 3 times to obtain mixed powder, wherein the mass ratio of the zeolite powder to the montmorillonite powder is 1:0.15;
4) Drying, namely putting the mixed powder obtained in the step 3) into a drying oven, and drying for 3-6h at 30-60 ℃ to obtain dry mixed powder;
5) Preparing a modified solution A, namely preparing 1.2-1.5mol/L NaCl solution, and adding 0.3-0.5% of polyvinylpyrrolidone into the NaCl solution to obtain the modified solution A;
6) Preparing modified solution B by diluting 85% phosphoric acid with 0.3-0.5mol/L NaCl solution 2-4 times, adding 10-20% Mg (OH) 2 Obtaining a modified solution B;
7) Immersing the dried mixed powder obtained in the step 4) into the modified solution A obtained in the step 5), heating to 40-60 ℃, uniformly stirring for 6-12h, taking out the powder, and drying at 100-150 ℃ for 3-5h to obtain a first modified medicament;
8) Adding the first modified reagent obtained in the step 7) into the modified solution B obtained in the step 6), heating to 30-80 ℃, uniformly stirring for 5-10h, taking out the reagent, and drying at 200-300 ℃ for 1-2h to obtain the reagent for treating ammonia nitrogen wastewater.
2. The method for preparing a medicament for treating ammonia nitrogen wastewater according to claim 1, wherein in the step 1), the zeolite is clinoptilolite.
3. The method for preparing the agent for treating the ammonia nitrogen wastewater according to claim 1, wherein the dilution ratio in the step 6) is 2 times.
4. The agent prepared by the preparation method of the agent for treating ammonia nitrogen wastewater according to any one of claims 1 to 3, which is characterized by being obtained by modifying mixed solid powder by adopting a modifying solution A and a modifying solution B;
the modified solution A comprises NaCl and polyvinylpyrrolidone;
the modified solution B comprises NaCl, phosphoric acid and Mg (OH) 2 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010991989.2A CN112093832B (en) | 2020-09-21 | 2020-09-21 | Preparation method of medicament for treating ammonia nitrogen wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010991989.2A CN112093832B (en) | 2020-09-21 | 2020-09-21 | Preparation method of medicament for treating ammonia nitrogen wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112093832A CN112093832A (en) | 2020-12-18 |
| CN112093832B true CN112093832B (en) | 2022-12-27 |
Family
ID=73760449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010991989.2A Active CN112093832B (en) | 2020-09-21 | 2020-09-21 | Preparation method of medicament for treating ammonia nitrogen wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112093832B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527330A (en) * | 2012-01-30 | 2012-07-04 | 中国地质大学（武汉） | Preparation method of modified clinoptilolite ion exchanger |
| CN105152261A (en) * | 2015-09-01 | 2015-12-16 | 同济大学 | Reusable ammonia-nitrogen wastewater adsorbing agent preparation and regeneration using method |
| CN105693033A (en) * | 2016-04-06 | 2016-06-22 | 金华知产婺源信息技术有限公司 | Treatment system for removing ammonia nitrogen in domestic wastewater |
| CN105797679A (en) * | 2016-03-25 | 2016-07-27 | 江苏艾特克环境工程设计研究院有限公司 | Zeolite modifying method for removing ammonia nitrogen and phosphate radicals in waste water synchronously |
-
2020
- 2020-09-21 CN CN202010991989.2A patent/CN112093832B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527330A (en) * | 2012-01-30 | 2012-07-04 | 中国地质大学（武汉） | Preparation method of modified clinoptilolite ion exchanger |
| CN105152261A (en) * | 2015-09-01 | 2015-12-16 | 同济大学 | Reusable ammonia-nitrogen wastewater adsorbing agent preparation and regeneration using method |
| CN105797679A (en) * | 2016-03-25 | 2016-07-27 | 江苏艾特克环境工程设计研究院有限公司 | Zeolite modifying method for removing ammonia nitrogen and phosphate radicals in waste water synchronously |
| CN105693033A (en) * | 2016-04-06 | 2016-06-22 | 金华知产婺源信息技术有限公司 | Treatment system for removing ammonia nitrogen in domestic wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112093832A (en) | 2020-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102029144A (en) | Adsorbent for adsorbing heavy metal ions and dye in waste water and preparation method thereof | |
| CN110385104A (en) | A kind of modified zeolite flyash composite adsorbing material and preparation method thereof | |
| CN101381123A (en) | Method for treating waste water containing vanadium and ammonia nitrogen with natural clinoptilolite | |
| CN103496777B (en) | Pretreatment method of ammonia-nitrogen wastewater | |
| CN113842892A (en) | Method for treating uranium-containing wastewater by modifying natural fibers with amide/phosphoric acid groups | |
| CN108191056B (en) | Desulfurization and denitrification method for desulfurization and denitrification wastewater and ammonia nitrogen wastewater | |
| CN103706234A (en) | Fetid smoke treatment method and device | |
| CN102247818A (en) | Adsorbent for removing sulfate ions contained in water body as well as preparation and application thereof | |
| CN112093832B (en) | Preparation method of medicament for treating ammonia nitrogen wastewater | |
| CN105502556B (en) | A kind of method for handling organic pollutants | |
| CN112121776B (en) | Adsorbent for removing antimony in printing and dyeing wastewater and preparation method and application thereof | |
| CN109437486B (en) | Resource utilization method of wastewater containing low-concentration sulfuric acid disperse dye | |
| CN112973739A (en) | Composite catalyst for catalytic oxidation treatment of antibiotic wastewater | |
| CN112875938A (en) | Ammonia nitrogen wastewater membrane absorption treatment device and method | |
| CN104276648B (en) | A kind for the treatment of process of waste water | |
| CN101519232A (en) | Method for reducing ammonia nitrogen in industrial wastewater | |
| CN110092438A (en) | A kind of method of electrolytic manganese residues as photocatalyst treatment organic wastewater | |
| CN113830875B (en) | Based on LaCu0.5Mn0.5O3Method for degrading bisphenol A in water by perovskite | |
| CN104276685A (en) | Process for recovering ammonia from wastewater containing ammonia nitrogen | |
| CN108434977A (en) | A kind of method of phosphate ore pulp liquid phase catalytic oxidation simultaneous SO_2 and NO removal | |
| CN113233565A (en) | Heavy metal remover and preparation method thereof | |
| CN205045930U (en) | Processing apparatus who contains ammonia wastewater | |
| CN113371783A (en) | Method for treating nitrogen and phosphorus wastewater by using water-quenched slag-fly ash-based 4A zeolite | |
| CN105174554A (en) | Ammonia-containing waste water disposal device and disposal method | |
| CN113044906A (en) | Electroplating wastewater treatment agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |