CN102583694A - Persulfate slow-release material used for permeable reactive barrier and preparation method thereof - Google Patents
Persulfate slow-release material used for permeable reactive barrier and preparation method thereof Download PDFInfo
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- CN102583694A CN102583694A CN2012100516069A CN201210051606A CN102583694A CN 102583694 A CN102583694 A CN 102583694A CN 2012100516069 A CN2012100516069 A CN 2012100516069A CN 201210051606 A CN201210051606 A CN 201210051606A CN 102583694 A CN102583694 A CN 102583694A
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- Prior art keywords
- slow
- release material
- persulphate
- mass ratio
- permeable reactive
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- 239000000463 material Substances 0.000 title claims abstract description 44
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 title claims abstract description 35
- 230000004888 barrier function Effects 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000007800 oxidant agent Substances 0.000 claims abstract description 22
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 15
- 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 15
- 239000010457 zeolite Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 5
- 239000008187 granular material Substances 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical group NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 15
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 13
- 238000005469 granulation Methods 0.000 claims description 9
- 230000003179 granulation Effects 0.000 claims description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 7
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052791 calcium Inorganic materials 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- 239000011398 Portland cement Substances 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000009736 wetting Methods 0.000 claims description 3
- 239000003469 silicate cement Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 4
- 238000004090 dissolution Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract 2
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000003895 groundwater pollution Methods 0.000 description 5
- 239000002957 persistent organic pollutant Substances 0.000 description 5
- -1 persulfate radical Chemical class 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
-
- 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
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/685—Devices for dosing the additives
- C02F1/688—Devices in which the water progressively dissolves a solid compound
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
- C04B22/147—Alkali-metal sulfates; Ammonium sulfate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
- C04B2111/00775—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes the composition being used as waste barriers or the like, e.g. compositions used for waste disposal purposes only, but not containing the waste itself
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Soil Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Road Paving Structures (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a persulfate slow-release material used for a permeable reactive barrier, which is granular and comprises an active oxidizing agent, a stabilizing, curing and binding agent, zeolite and water, and the mass ratio of active oxidizing agent to stabilizing, curing and binding agent to zeolite to water is 1:1.4-1.7:0.5-0.7:0.9-1.2. The invention also discloses a method for preparing the persulfate slow-release material. With the persulfate slow-release material provided by the invention, the dissolution speed of oxidizing solid granules namely persulfate in the permeable reactive barrier can be obviously reduced, and the service life of the permeable reactive barrier can be further prolonged.
Description
Technical field
The invention belongs to groundwater pollution reparation category in the environmental protection field, relate to a kind of persulphate slow-release material that permeable reactive barrier is handled organic pollutant that is used for particularly.
The invention still further relates to the preparation method of above-mentioned persulphate slow-release material.
Background technology
The underground water organic contamination has caused huge health risk to the public, has caused the great attention of some national government, according to investigations; The underground water of China some areas has detected more than 130 kind of organic pollutant; Particularly in oil production, processing, store in the sales process, because of the evaporating, emitting, dripping or leaking of liquid or gas of oil and products thereof causes pollutents such as petroleum hydrocarbon, polycyclic aromatic hydrocarbons, benzene series thing, chloro-carbon solvent to get into underground water; Cause phreatic pollution, have a strong impact on HUMAN HEALTH and environmental safety.
In recent years; Permeable reactive barrier (PRB-Permeable Reactive Barrier) but technology because of having the multiple pollutent of in-situ treatment, treatment effect is good, installation is convenient, running cost is low advantage, become the focus that domestic and international groundwater pollution original position reparation is studied.The selection of active media material is the whether good key of permeable reactive barrier technology repairing effect, and these dielectric materials can be divided into two types, and a kind of is reducing metal powder (like iron powder), and another kind is the oxidisability solid particulate, like persulphate, CaO
2
Reducing metal only with underground water in pollutent generation chemical reaction after just can consume; And it is relevant with its pollutent that reacts except following to have the consumption of certain deliquescent oxidisability solid particulate, also can run off because of phreatic dissolving, in fact; Pollutant levels in the underground water are lower; Consumption to active media material is less, and the oxidisability material can run off along with underground water in the underground water for being dissolved in of failing to consume, and causes the significant wastage of oxidisability material.Generalized case, permeable reactive barrier need be in the operation of underground environment long period, and the oxidisability material of loss will make significantly reduce the work-ing life of permeable reactive barrier, and then cause the running cost of permeable reactive barrier technology significantly to increase.Therefore, how to realize that the fixing of active oxidation material is the technical barrier that technical application faces in the permeable reactive barrier with slowly discharging.
Summary of the invention
The object of the invention is to be provided for a kind of persulphate slow-release material that is used for permeable reactive barrier processing organic pollutant of groundwater pollution reparation.
Another purpose of the present invention is to provide a kind of method for preparing above-mentioned persulphate slow-release material.
For realizing above-mentioned purpose, the persulphate slow-release material that is used for permeable reactive barrier provided by the invention is particulate state, comprises active oxidizer, stable curing tackiness agent, zeolite and water, presses mass ratio and calculates:
Active oxidizer: stable curing tackiness agent: zeolite: water=1: 1.4-1.7: 0.5-0.7: 0.9-1.2.
The said persulphate slow-release material that is used for permeable reactive barrier, wherein, active oxidizer is Sodium Persulfate and calcium superoxide, mass ratio is 1: 0.05-0.07; The stable curing tackiness agent is ordinary Portland cement and fine sand, and mass ratio is 1: 0.13-0.15.
The said persulphate slow-release material that is used for permeable reactive barrier, wherein, the median size of persulphate slow-release material is 3.5-5.0mm.
The said persulphate slow-release material that is used for permeable reactive barrier, wherein, the Sodium Persulfate slow-release material discharges S
2O
8 2-Speed is 0.10mg-0.60mg/d/g.
The method of the above-mentioned Sodium Persulfate slow-release material of preparation provided by the invention, key step is:
1) Sodium Persulfate and calcium superoxide are active oxidizer, press mass ratio 1: the 0.05-0.07 uniform mixture;
2) silicate cement and fine sand are stabilizing and curing agent, are 1 by mass ratio: the 0.13-0.15 uniform mixing;
3) active oxidizer, stable curing tackiness agent, zeolite are pressed the full and uniform mixing of mass ratio 1: 1.4-1.7: 0.5-0.7, spray water makes material become wetting shape to get final product;
4) mixture with step 3 carries out granulation, and granular material dries under ventilation condition naturally, gets title product.
Described preparation method, wherein, water and active oxidizer are pressed mass ratio 0.9-1.2 in the step 3: 1.
Described preparation method, wherein, the granulation of step 4 is to adopt input to extrude round as a ball tablets press to carry out granulation, and extruded velocity is 10r/min, and round as a ball speed is 800r/min.
Described preparation method, wherein, granular oxygen slow-releasing composite material median size is 3.5-5.0mm.
Persulphate slow-release material of the present invention can significantly reduce the dissolution rate of the oxidisability solid particulate-persulphate in the permeable reactive barrier, and then prolongs the work-ing life of permeable reactive barrier.
In repairing phreatic permeable reactive barrier, put into persulfuric acid slow-release material of the present invention; Can significantly reduce the speed of the Sodium Persulfate release persulfate radical in the permeable reactive wall; And then the concentration of control and reduction underground water sulfate radical radical; Avoid making that because of the persulphate dissolving underground water sulfate radical number of free radical is excessive; And make that polluting the unnecessary sulfate radical radical in reaction back in itself and the underground water loses with underground current; The sulfate radical radical unnecessary consumption that causes Sodium Persulfate to discharge, and then can prolong the work-ing life that is used for the permeable reactive barrier that groundwater pollution repairs, significantly lower and utilize permeable reactive barrier to repair contaminated phreatic cost.
Embodiment
The present invention is on the basis of the fixing and slowly-releasing mechanism of further investigation Sodium Persulfate; Proposed to utilize the compound action of stable curing tackiness agent, zeolite and water; Realize the fixing and slow method for releasing of Sodium Persulfate; Helping prolonging with the Sodium Persulfate is the cycle of operation of the permeable reactive barrier of active media material, reduces the groundwater pollution rehabilitation cost.
Contain active oxidizer, stable curing tackiness agent, zeolite and water in the persulphate slow-release material of the present invention, wherein, active oxidizer is Sodium Persulfate and calcium superoxide, is to be 1 by mass ratio: the 0.05-0.07 uniform mixture; Stabilizing and curing agent is ordinary Portland cement and fine sand, is to be 1 according to mass ratio: the uniform mixture of 0.13-0.15; Again active oxidizer, stable curing tackiness agent, zeolite are pressed the full and uniform mixing of mass ratio 1: 1.4-1.7: 0.5-0.7; Spray gauge water then; Water and active oxidizer are pressed mass ratio 0.9-1.2: 1, and make material become wetting shape to get final product, to avoid the too early consumption of persulphate.Afterwards the mixture input extruded round as a ball tablets press and carry out granulation, and to set extruded velocity be 10r/min that round as a ball speed is 800r/min.Gained particulate state oxygen slow-releasing composite material dries under ventilation condition naturally, and its median size is 3.5-5.0mm.
The present invention provides its raw material of persulphate slow-release material to be easy to get; Effective; Safety and environmental protection uses the permeable reactive barrier technology of this vitriol slow-release material to repair the underground water that receives Organic pollutants, in the content that significantly lowers organic pollutant in the underground water; Permeable reactive barrier operation life 30-50 can be prolonged doubly, and phreatic secondary pollution can not be caused.
Embodiment 1
Get Sodium Persulfate and calcium superoxide, mix at 1: 0.05, be mixed with active oxidizer by mass ratio; Get ordinary Portland cement and fine sand, mix at 1: 0.13, be mixed with the stable curing tackiness agent by mass ratio; And then get zeolite; Press mass ratio, active oxidizer: the stable curing tackiness agent: zeolite=mix at 1: 1.7: 0.5 mixes granulation with mixed material and water at last again; Under ventilation condition, place after 24 hours naturally, promptly process the persulphate slow-release material.
Measuring the 500mL pure water is in the reactor drum of 1000mL in volume, and for the oxygen deprivation condition of simulated groundwater, adopting the nitrogen aeration to make the dissolved oxygen of Gao Shuizhong is zero; Get the persulphate slow-release material 50g for preparing; Put into the self-control reactor drum, the water in the reactor drum is changed in airtight placement every day; The water of collecting after changing is used to analyze persulphate concentration, and analytical results shows that the mean rate that persulphate discharges in 15 days is 0.21mg/d/g.
Embodiment 2
Get Sodium Persulfate and calcium superoxide, mix at 1: 0.07, be mixed with active oxidizer by mass ratio; Get ordinary Portland cement and fine sand, mix at 1: 0.15, be mixed with the stable curing tackiness agent by mass ratio; And then get zeolite; Press mass ratio, active oxidizer: the stable curing tackiness agent: zeolite=mix at 1: 1.4: 0.7 mixes granulation with mixed material and water at last again; Under ventilation condition, place after 24 hours naturally, promptly process the persulphate slow-release material.
Measuring the 500mL pure water is in the reactor drum of 1000mL in volume, and for the oxygen deprivation condition of simulated groundwater, adopting the nitrogen aeration to make the dissolved oxygen of Gao Shuizhong is zero; Get the persulphate slow-release material 50g for preparing; Put into the self-control reactor drum, the water in the reactor drum is changed in airtight placement every day; The water of collecting after changing is used to analyze persulphate concentration, and analytical results shows that the mean rate that persulphate discharges in 15 days is 0.51mg/d/g.
Claims (8)
1. a persulphate slow-release material that is used for permeable reactive barrier is particulate state, comprises active oxidizer, stable curing tackiness agent, zeolite and water, presses mass ratio and calculates:
Active oxidizer: stable curing tackiness agent: zeolite: water=1: 1.4-1.7: 0.5-0.7: 0.9-1.2.
2. according to the said persulphate slow-release material that is used for permeable reactive barrier of claim 1, wherein, active oxidizer is Sodium Persulfate and calcium superoxide, and mass ratio is 1: 0.05-0.07; The stable curing tackiness agent is ordinary Portland cement and fine sand, and mass ratio is 1: 0.13-0.15.
3. according to the said persulphate slow-release material that is used for permeable reactive barrier of claim 1, wherein, the median size of persulphate slow-release material is 3.5-5.0mm.
4. according to the said persulphate slow-release material that is used for permeable reactive barrier of claim 1, wherein, the persulphate slow-release material discharges S
2O
8 2-Speed is 0.10mg-0.60mg/d/g.
5. method for preparing the said Sodium Persulfate slow-release material of claim 1, key step is:
1) Sodium Persulfate and calcium superoxide are active oxidizer, press mass ratio 1: the 0.05-0.07 uniform mixture;
2) silicate cement and fine sand are stabilizing and curing agent, are 1 by mass ratio: the 0.13-0.15 uniform mixing;
3) active oxidizer, stable curing tackiness agent, zeolite are pressed the full and uniform mixing of mass ratio 1: 1.4-1.7: 0.5-0.7, spray water makes material become wetting shape to get final product;
4) mixture with step 3 carries out granulation, and granular material dries under ventilation condition naturally, gets title product.
6. preparation method according to claim 5, wherein, water and active oxidizer are pressed mass ratio 0.9-1.2 in the step 3: 1.
7. preparation method according to claim 5, wherein, the granulation of step 4 is to adopt input to extrude round as a ball tablets press to carry out granulation, and extruded velocity is 10r/min, and round as a ball speed is 800r/min.
8. according to claim 5 or 7 described preparing methods, wherein, granular oxygen slow-releasing composite material median size is 3.5-5.0mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100516069A CN102583694B (en) | 2012-03-01 | 2012-03-01 | Persulfate slow-release material used for permeable reactive barrier and preparation method thereof |
| GB1219326.4A GB2499866B (en) | 2012-03-01 | 2012-10-26 | Sustained-release persulfate material used in permeable reactive barrier and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100516069A CN102583694B (en) | 2012-03-01 | 2012-03-01 | Persulfate slow-release material used for permeable reactive barrier and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102583694A true CN102583694A (en) | 2012-07-18 |
| CN102583694B CN102583694B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100516069A Expired - Fee Related CN102583694B (en) | 2012-03-01 | 2012-03-01 | Persulfate slow-release material used for permeable reactive barrier and preparation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102583694B (en) |
| GB (1) | GB2499866B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553204A (en) * | 2013-11-20 | 2014-02-05 | 哈尔滨理工大学 | Method for treating water by using singlet oxygen produced from peroxymonosulfate under induction of inorganic solid peroxide |
| CN103553203A (en) * | 2013-11-20 | 2014-02-05 | 哈尔滨理工大学 | Method for treating reverse osmosis concentrated solution by using singlet oxygen produced from peroxymonosulfate under induction of inorganic solid peroxide |
| CN104071886A (en) * | 2014-07-01 | 2014-10-01 | 中节能大地环境修复有限公司 | Preparation method and application of self-activated persulfate oxidized medicament |
| CN104445570A (en) * | 2014-10-22 | 2015-03-25 | 同济大学 | Method for removing polycyclic aromatic hydrocarbon methylnaphthalene substance by adopting double oxidants including persulfate and calcium peroxide |
| CN106315819A (en) * | 2016-10-19 | 2017-01-11 | 北京德瑞科森环保科技有限公司 | Oxidized slow release material for treating difficultly-degraded organic pollutants in underground water |
| CN106495318A (en) * | 2016-11-14 | 2017-03-15 | 南京大学 | A kind of permeating reaction wall system of utilization reinforced anaerobic biotechnology in-situ remediation of underground water petrochina hydrocarbon and method |
| CN107265992A (en) * | 2017-07-28 | 2017-10-20 | 石家庄铁道大学 | Slow-release anti-cracking repair material and preparation method thereof |
| CN112358012A (en) * | 2020-11-27 | 2021-02-12 | 北京伦至环境科技有限公司 | Preparation method of efficient slow-release filling material for underground water permeable reactive barrier |
| CN112646584A (en) * | 2020-12-31 | 2021-04-13 | 中节能大地（杭州）环境修复有限公司 | Slow-release oxidant for treating organic contaminated soil and preparation method thereof |
| CN114735850A (en) * | 2022-04-08 | 2022-07-12 | 浙江大学 | Folding multilayer permeable reaction wall for in-situ purification of underground water pollution plume of refuse landfill |
| CN114906945A (en) * | 2021-02-08 | 2022-08-16 | 中国石油化工股份有限公司 | Slow-release oxygen material and preparation method and application thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115677009A (en) * | 2021-07-30 | 2023-02-03 | 中国石油化工股份有限公司 | Persulfate slow-release material and preparation method thereof |
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| US8210773B2 (en) * | 2010-02-16 | 2012-07-03 | Specialty Earth Sciences | Process for insitu treatment of soil and groundwater |
| CN102241454A (en) * | 2011-05-26 | 2011-11-16 | 哈尔滨工业大学 | Method for remediating contaminated underground water in situ on basis of persulfate thermal activation technique |
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| US20060226083A1 (en) * | 2003-01-31 | 2006-10-12 | Motoshi Suzuki | Method of treating wastewater containing hardly decomposable harmful substances |
| CN101407358A (en) * | 2008-11-06 | 2009-04-15 | 天津大学 | Metal peroxide-based oxygen slow release composite material and preparation thereof |
| CN101805153A (en) * | 2009-02-12 | 2010-08-18 | 中国环境科学研究院 | Permeable reactive barrier dielectric material used for remedying underground water pollution |
| CN101851026A (en) * | 2010-03-31 | 2010-10-06 | 吉林大学 | Ecological safety type natural permeable reactive barrier medium and preparation method thereof |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553204A (en) * | 2013-11-20 | 2014-02-05 | 哈尔滨理工大学 | Method for treating water by using singlet oxygen produced from peroxymonosulfate under induction of inorganic solid peroxide |
| CN103553203A (en) * | 2013-11-20 | 2014-02-05 | 哈尔滨理工大学 | Method for treating reverse osmosis concentrated solution by using singlet oxygen produced from peroxymonosulfate under induction of inorganic solid peroxide |
| CN103553203B (en) * | 2013-11-20 | 2015-03-18 | 哈尔滨理工大学 | Method for treating reverse osmosis concentrated solution by using singlet oxygen produced from peroxymonosulfate under induction of inorganic solid peroxide |
| CN103553204B (en) * | 2013-11-20 | 2015-04-15 | 哈尔滨理工大学 | Method for treating water by using singlet oxygen produced from peroxymonosulfate under induction of inorganic solid peroxide |
| CN104071886A (en) * | 2014-07-01 | 2014-10-01 | 中节能大地环境修复有限公司 | Preparation method and application of self-activated persulfate oxidized medicament |
| CN104071886B (en) * | 2014-07-01 | 2016-01-20 | 中节能大地环境修复有限公司 | The preparation method of self-activation type persulfate oxidation medicament and application thereof |
| CN104445570A (en) * | 2014-10-22 | 2015-03-25 | 同济大学 | Method for removing polycyclic aromatic hydrocarbon methylnaphthalene substance by adopting double oxidants including persulfate and calcium peroxide |
| CN106315819A (en) * | 2016-10-19 | 2017-01-11 | 北京德瑞科森环保科技有限公司 | Oxidized slow release material for treating difficultly-degraded organic pollutants in underground water |
| CN106495318A (en) * | 2016-11-14 | 2017-03-15 | 南京大学 | A kind of permeating reaction wall system of utilization reinforced anaerobic biotechnology in-situ remediation of underground water petrochina hydrocarbon and method |
| CN106495318B (en) * | 2016-11-14 | 2019-08-06 | 南京大学 | A kind of permeating reaction wall system and method using petroleum hydrocarbon in reinforced anaerobic biotechnology in-situ remediation of underground water |
| CN107265992A (en) * | 2017-07-28 | 2017-10-20 | 石家庄铁道大学 | Slow-release anti-cracking repair material and preparation method thereof |
| CN107265992B (en) * | 2017-07-28 | 2019-12-10 | 石家庄铁道大学 | Slow-release anti-cracking repair material and preparation method thereof |
| CN112358012A (en) * | 2020-11-27 | 2021-02-12 | 北京伦至环境科技有限公司 | Preparation method of efficient slow-release filling material for underground water permeable reactive barrier |
| CN112646584A (en) * | 2020-12-31 | 2021-04-13 | 中节能大地（杭州）环境修复有限公司 | Slow-release oxidant for treating organic contaminated soil and preparation method thereof |
| CN114906945A (en) * | 2021-02-08 | 2022-08-16 | 中国石油化工股份有限公司 | Slow-release oxygen material and preparation method and application thereof |
| CN114735850A (en) * | 2022-04-08 | 2022-07-12 | 浙江大学 | Folding multilayer permeable reaction wall for in-situ purification of underground water pollution plume of refuse landfill |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2499866B (en) | 2014-01-08 |
| CN102583694B (en) | 2013-06-19 |
| GB2499866A (en) | 2013-09-04 |
| GB201219326D0 (en) | 2012-12-12 |
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