CN109201722A - A method of strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect - Google Patents
A method of strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect Download PDFInfo
- Publication number
- CN109201722A CN109201722A CN201710537323.8A CN201710537323A CN109201722A CN 109201722 A CN109201722 A CN 109201722A CN 201710537323 A CN201710537323 A CN 201710537323A CN 109201722 A CN109201722 A CN 109201722A
- Authority
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- China
- Prior art keywords
- magnesium phosphate
- heavy
- soil
- ammonium magnesium
- contaminated soil
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- 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.)
- Pending
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- 239000002689 soil Substances 0.000 title claims abstract description 57
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910052793 cadmium Inorganic materials 0.000 title claims abstract description 21
- 230000000694 effects Effects 0.000 title claims abstract description 20
- 229910052745 lead Inorganic materials 0.000 title claims abstract description 20
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 19
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 18
- 230000033228 biological regulation Effects 0.000 title claims abstract description 12
- 238000005728 strengthening Methods 0.000 title claims abstract description 8
- MXZRMHIULZDAKC-UHFFFAOYSA-L ammonium magnesium phosphate Chemical compound [NH4+].[Mg+2].[O-]P([O-])([O-])=O MXZRMHIULZDAKC-UHFFFAOYSA-L 0.000 claims abstract description 33
- 239000002245 particle Substances 0.000 claims abstract description 19
- 238000004090 dissolution Methods 0.000 claims abstract description 5
- 230000006641 stabilisation Effects 0.000 claims abstract description 5
- GSFSVEDCYBDIGW-UHFFFAOYSA-N 2-(1,3-benzothiazol-2-yl)-6-chlorophenol Chemical compound OC1=C(Cl)C=CC=C1C1=NC2=CC=CC=C2S1 GSFSVEDCYBDIGW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000011105 stabilization Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 7
- 239000002351 wastewater Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052567 struvite Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000004254 Ammonium phosphate Substances 0.000 claims description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 3
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 3
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 3
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 claims description 3
- 239000004137 magnesium phosphate Substances 0.000 claims description 3
- 229960002261 magnesium phosphate Drugs 0.000 claims description 3
- 229910000157 magnesium phosphate Inorganic materials 0.000 claims description 3
- 235000010994 magnesium phosphates Nutrition 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 4
- 230000000857 drug effect Effects 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 229910000153 copper(II) phosphate Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910000156 lead(II) phosphate Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000165 zinc phosphate Inorganic materials 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- JWSMTBMIGYJJJM-UHFFFAOYSA-N magnesium;azane Chemical compound N.[Mg+2] JWSMTBMIGYJJJM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 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
- B09C1/08—Reclamation of contaminated soil chemically
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/04—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only applied in a physical form other than a solution or a grout, e.g. as granules or gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention discloses a kind of method for strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect, includes the following steps；One, the step of conventional treatment heavy metal: Sodium Dimethyldithiocarbamate is added into contaminated soil, and carries out stabilization processes；Two, continue equably to add ammonium magnesium phosphate particle into soil after the above step；This method can in certain timeliness (half a year to 1 year) strengthen the effect that the heavy-metal contaminated soils curing/stabilizing such as Pb, As, Cu, Cd, Zn is administered, and enhanced time is adjustable within a certain range (half a year to 1 year)；By preparing the ammonium magnesium phosphate particle of different-grain diameter in combination with place soil Drought-wet change rule, ammonium magnesium phosphate dissolution time and solution rate in the soil are adjusted, to achieve the purpose that there is length of time in the soil by adjusting ammonium magnesium phosphate controls drug effect length.
Description
Technical field
The present invention relates to environmental technology field, in particular to a kind of reinforcing Pb, As, Cu, Cd, Zn heavy-metal contaminated soil
The method of curing/stabilizing regulation effect.
Background technique
With the continuous expansion of industrial production production capacity, soil pollution is increasingly severe, under the conditions of low pH value, especially by
To the soil of the various heavies combined pollutions such as Pb, As, Cu, Cd, Zn, human health is caused great harm, even
Threat to life.In this context, there is the methods for curing heavy metal contamination in soil and medicine of large quantities of curing/stabilizings, passivation
Agent, these medicaments convert the existing forms of heavy metal in soil by way of adsorbing, generating the smaller compound of solubility product, reach
To water-soluble heavy metal concentration in soil is reduced, the purpose of the available state of heavy metal in soil is reduced.But such method have with
Lower two disadvantages:
One, these medicaments are all " specific drugs ", after being added in soil, are generally possible to reduce rapidly the available state of heavy metal in soil
Content；But can not be permanent, if having new water-soluble heavy metal to enter soil, the available state of heavy metal in soil will rise
(as used sewage irrigation once in a while) or slowly enrichment increase (when containing a small amount of heavy metal in irrigation water or having containing heavy metal
Dust drops in soil), relevant criterion requirement is had reached so as to cause there is heavy-metal contaminated soil by improvement, is passed through
It checks and accepts, but the content of beary metal in the crops of grown on soil is still exceeded.
Two, these heavy metals be cured/stabilize, be passivated, adsorbing and Forms Transformation occurs, later period can or can not occur inverse
Conversion, becomes water-soluble state or other available states, in industry there is also biggish disputes again.Relevant expert thinks, in soil
Under dry and wet conversion, specific microbial environment, specific redox environment, these be cured/stabilize, be passivated, adsorb and
The heavy metal that Forms Transformation occurs very likely is re-converted into available state.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of reinforcing Pb, As, Cu, Cd, Zn heavy-metal contaminated soil solidification/steady
Surely change the method for regulation effect.
Technical scheme is as follows:
A method of strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect, includes the following steps；
One, the step of conventional treatment heavy metal: Sodium Dimethyldithiocarbamate is added into contaminated soil, and carries out stabilization processes；
Two, continue equably to add ammonium magnesium phosphate particle into soil after the above step；
Further, in step 2, ammonium magnesium phosphate is adjusted in the soil by preparing the ammonium magnesium phosphate particle of different-grain diameter
Dissolution time and solution rate；
Further, the diameter of ammonium magnesium phosphate particle is in 1 ~ 10mm；
Further, the preparation step of the ammonium magnesium phosphate particle in step 2 is as follows: water is added into the ammonia nitrogen waste water of high concentration
In add the medicament containing Mg2+ and PO43-, be allowed to react with the NH4+ in waste water the magnesium ammonium phosphate sediment object for generating indissoluble；
Further, the preparation step of the ammonium magnesium phosphate particle in step 2 is as follows: magnesium phosphate and ammonium phosphate reaction prepare phosphoric acid
Ammonium magnesium.
The principle of the present invention is as follows:
Ammonium magnesium phosphate is that one kind is slightly soluble in water, and with the effect of soil moisture, some ammonium magnesium phosphate dissolves, ionization
Phosphate radical out can and the reaction of most of heavy metal ion, generate the minimum phosphate of solubility product, play stabilize heavy metal from
The effect of son, to effectively inhibit the rising of heavy metal in soil bio-available Zn concentration.
The chemical equation being related to is as follows:
MgNH4PO4·nH2O→Mg2++ NH4++ PO43-
2PO43-+3Cu2+→Cu3(PO4)2↓
2PO43-+3Zn2+→Zn3(PO4)2↓
2PO43-+3Pb2+→Pb3(PO4)2↓
Beneficial effects of the present invention are as follows:
(1) this method can be consolidated the heavy-metal contaminated soils such as (half a year to 1 year) reinforcing Pb, As, Cu, Cd, Zn in certain timeliness
The effect that change/stabilisation is administered, and enhanced time is adjustable within a certain range (half a year to 1 year)；By preparing different-grain diameter
Ammonium magnesium phosphate particle is in combination with place soil Drought-wet change rule, to adjust ammonium magnesium phosphate dissolution time and dissolution in the soil
Speed, to achieve the purpose that there is length of time in the soil by adjusting ammonium magnesium phosphate to control drug effect length；
(2) this method strengthens the effect that the heavy-metal contaminated soils curing/stabilizings such as Pb, As, Cu, Cd, Zn are administered, and does not make
At the risk of secondary pollution；
(3) this method strengthens the effect that the heavy-metal contaminated soils curing/stabilizings such as Pb, As, Cu, Cd, Zn are administered, certain
The fertility of soil is improved in degree.
Specific embodiment
With reference to embodiment, the embodiment of the present invention is furthur described in detail.Following embodiment is
For illustrating the present invention, rather than it is used to limit the scope of the invention.
The purpose of the present invention is what is be accomplished by the following way: to have been cured/stabilize Pb, As of governance for reaching standard, Cu,
Ammonium magnesium phosphate particle is homogeneously added into the heavy-metal contaminated soils such as Cd, Zn.It can be by the size of particle come when adjusting reinforcing
Between length, grain diameter is bigger, and the time for being completely dissolved needs is longer, therefore drug effect is longer；Grain diameter is smaller, completely
It is shorter to dissolve the time needed, therefore drug effect is shorter.Ammonium magnesium phosphate particle can be from ad hoc approach (to the ammonia of high concentration
It is added to the water in nitrogen waste water and adds the medicament containing Mg2+ and PO43-, is allowed to react with the NH4+ in waste water to generate indissoluble
Phosphoric acid money magnesium precipitate object) the processing obtained precipitating of ammonia nitrogen waste water, can also from specific chemical method (as with magnesium phosphate and
Ammonium phosphate reaction prepares ammonium magnesium phosphate) synthesis.
This method strengthens the technical principle of the heavy metal pollutions curing/stabilizing regulation effects such as Pb, As, Cu, Cd, Zn such as
Under:
Ammonium magnesium phosphate is that one kind is slightly soluble in water, and with the effect of soil moisture, some ammonium magnesium phosphate dissolves, ionization
Phosphate radical out can and the reaction of most of heavy metal ion, generate the minimum phosphate of solubility product, play stabilize heavy metal from
The effect of son, to effectively inhibit the rising of heavy metal in soil bio-available Zn concentration.
The chemical equation being related to is as follows:
MgNH4PO4·nH2O→Mg2++ NH4++ PO43-
2PO43-+3Cu2+→Cu3(PO4)2↓
2PO43-+3Zn2+→Zn3(PO4)2↓
2PO43-+3Pb2+→Pb3(PO4)2↓
(embodiment 1)
The implementation steps of the embodiment are as follows:
Experimental design: the farming operation layer polluted by heavy metal (Pb, Cd) is acquired to Changsha, Hunan Yongan Rice Cropping
Soil (0-20cm).The soil of acquisition removes chad through natural air drying, and the foreign matters such as root system of plant are uniformly mixed.Heavy metal (Pb,
Cd) bio-available Zn concentration according to the method provided in " soil agrochemistry analysis method " (publishing house of Hohai University 2000) into
The processing detection of row sample.
Available state analyzes result such as following table (unit mg/kg):
After Sodium Dimethyldithiocarbamate C3H6NS2Na 2H2O stabilization processes, it is (unit mg/kg) that available state, which analyzes result:
By 500g, treated that soil is uniformly mixed, and is divided into 2 points and does comparative test, portion addition 2.5g, phosphorus of the diameter in 2 ~ 4mm
Sour ammonium magnesium granules (being purchased from Shandong Jin Yu chemical company)；What is not added for another.It is respectively 3mg/L with Pb2+, Cd3+ is contained,
The aqueous solution of 5mg/L goes to impregnate 2 parts of soil samples, uses water 100ml every time, after impregnating 2 days, natural air drying 13 days, and sampling analysis soil
In available state, continuously do 3 months.Analysis result is seen below:
Soil available analysis result is (unit mg/kg) after being added to ammonium magnesium phosphate particle:
Soil available analysis result is (unit mg/kg) after not adding ammonium magnesium phosphate particle:
From the foregoing, it will be observed that addition ammonium magnesium phosphate particle controls the heavy-metal contaminated soils curing/stabilizing such as Pb, As, Cu, Cd, Zn
The reinforcing of reason is more obvious.
It is that an exemplary description of the invention above, it is clear that of the invention realizes not by the limit of aforesaid way
System, as long as using the various improvement that technical solution of the present invention carries out, or not improved by conception and technical scheme of the invention
Other occasions are directly applied to, are within the scope of the invention.
Claims (5)
1. it is a kind of strengthen Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect method, which is characterized in that including with
Lower step；
Step 1: the step of conventional treatment heavy metal: adding Sodium Dimethyldithiocarbamate into contaminated soil, and carry out stabilization processes；
Step 2: continuing equably to add ammonium magnesium phosphate particle into soil after the above step.
2. a kind of side for strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect according to claim 1
Method, which is characterized in that
In step 2, adjusted by preparing the ammonium magnesium phosphate particle of different-grain diameter ammonium magnesium phosphate in the soil dissolution time and
Solution rate.
3. a kind of side for strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect according to claim 2
Method, which is characterized in that
The preparation step of ammonium magnesium phosphate particle is as follows: being added to the water into the ammonia nitrogen waste water of high concentration and adds containing Mg2+ and PO43-
Medicament, be allowed to react with the NH4+ in waste water the magnesium ammonium phosphate sediment object for generating indissoluble.
4. a kind of side for strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect according to claim 2
Method, which is characterized in that
The preparation step of ammonium magnesium phosphate particle is as follows: preparing ammonium magnesium phosphate by magnesium phosphate and ammonium phosphate reaction.
5. a kind of side for strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect according to claim 3
Method, which is characterized in that the diameter of ammonium magnesium phosphate particle is in 1 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537323.8A CN109201722A (en) | 2017-07-04 | 2017-07-04 | A method of strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537323.8A CN109201722A (en) | 2017-07-04 | 2017-07-04 | A method of strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109201722A true CN109201722A (en) | 2019-01-15 |
Family
ID=64993281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710537323.8A Pending CN109201722A (en) | 2017-07-04 | 2017-07-04 | A method of strengthening Pb, As, Cu, Cd, Zn heavy-metal contaminated soil regulation effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109201722A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436598A (en) * | 2019-08-08 | 2019-11-12 | 中国地质大学（北京） | Application of the ammonium magnesium phosphate/nano-sized magnesium hydroxide in processing heavy metal-containing waste water |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52107964A (en) * | 1976-02-27 | 1977-09-10 | Sumitomo Cement Co | Process for treating polluted soil with heavy metals |
| JP2006122799A (en) * | 2004-10-28 | 2006-05-18 | Ebara Corp | Organic waste treatment method and apparatus |
| CN1884116A (en) * | 2006-07-10 | 2006-12-27 | 同济大学 | Method for processing refuse-burning fly-ash by using magnesium ammonium phosphate sedimentation sludge |
| US20110028568A1 (en) * | 2008-02-20 | 2011-02-03 | Innotere Gmbh | Preparation for magnesium ammonium phosphate cements |
| CN103922860A (en) * | 2014-05-04 | 2014-07-16 | 扬州大学 | Production method of long-acting ammonium phosphate salt slow release fertilizer granules |
| CN105013810A (en) * | 2014-04-16 | 2015-11-04 | 永清环保股份有限公司 | Chromium-contaminated soil remediation medicament and remediation method |
| CN105154093A (en) * | 2015-07-23 | 2015-12-16 | 永清环保股份有限公司 | Stabilizer for treating lead contaminated soil and application thereof |
| CN106435192A (en) * | 2016-09-13 | 2017-02-22 | 南京大学 | Method for removing and recycling copper from magnesium ammonium phosphate sludge |
-
2017
- 2017-07-04 CN CN201710537323.8A patent/CN109201722A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52107964A (en) * | 1976-02-27 | 1977-09-10 | Sumitomo Cement Co | Process for treating polluted soil with heavy metals |
| JP2006122799A (en) * | 2004-10-28 | 2006-05-18 | Ebara Corp | Organic waste treatment method and apparatus |
| CN1884116A (en) * | 2006-07-10 | 2006-12-27 | 同济大学 | Method for processing refuse-burning fly-ash by using magnesium ammonium phosphate sedimentation sludge |
| US20110028568A1 (en) * | 2008-02-20 | 2011-02-03 | Innotere Gmbh | Preparation for magnesium ammonium phosphate cements |
| CN105013810A (en) * | 2014-04-16 | 2015-11-04 | 永清环保股份有限公司 | Chromium-contaminated soil remediation medicament and remediation method |
| CN103922860A (en) * | 2014-05-04 | 2014-07-16 | 扬州大学 | Production method of long-acting ammonium phosphate salt slow release fertilizer granules |
| CN105154093A (en) * | 2015-07-23 | 2015-12-16 | 永清环保股份有限公司 | Stabilizer for treating lead contaminated soil and application thereof |
| CN106435192A (en) * | 2016-09-13 | 2017-02-22 | 南京大学 | Method for removing and recycling copper from magnesium ammonium phosphate sludge |
Non-Patent Citations (1)
| Title |
|---|
| 《中国化肥手册》编辑组: "《中国化肥手册 生产 流通 施用》", 31 March 1992, 化工部科学技术情报研究所 等 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436598A (en) * | 2019-08-08 | 2019-11-12 | 中国地质大学（北京） | Application of the ammonium magnesium phosphate/nano-sized magnesium hydroxide in processing heavy metal-containing waste water |
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Application publication date: 20190115 |