CN108753301A - Application of the Guava Leaf in reducing farmland soil heavy metals toxicity - Google Patents
Application of the Guava Leaf in reducing farmland soil heavy metals toxicity Download PDFInfo
- Publication number
- CN108753301A CN108753301A CN201810510301.7A CN201810510301A CN108753301A CN 108753301 A CN108753301 A CN 108753301A CN 201810510301 A CN201810510301 A CN 201810510301A CN 108753301 A CN108753301 A CN 108753301A
- Authority
- CN
- China
- Prior art keywords
- guava leaf
- soil
- guava
- leaf
- toxicity
- 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.)
- Pending
Links
- 241000508269 Psidium Species 0.000 title claims abstract description 70
- 239000002689 soil Substances 0.000 title claims abstract description 54
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 27
- 231100000419 toxicity Toxicity 0.000 title claims abstract description 14
- 230000001988 toxicity Effects 0.000 title claims abstract description 14
- 230000001603 reducing effect Effects 0.000 title claims abstract description 6
- 238000002386 leaching Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 4
- 229910020218 Pb—Zn Inorganic materials 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 238000002161 passivation Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000011701 zinc Substances 0.000 description 13
- 229910052793 cadmium Inorganic materials 0.000 description 10
- 229910052725 zinc Inorganic materials 0.000 description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 9
- 241000219926 Myrtaceae Species 0.000 description 8
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 231100000783 metal toxicity Toxicity 0.000 description 7
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- REFJWTPEDVJJIY-UHFFFAOYSA-N Quercetin Chemical compound C=1C(O)=CC(O)=C(C(C=2O)=O)C=1OC=2C1=CC=C(O)C(O)=C1 REFJWTPEDVJJIY-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 240000005218 Phyla nodiflora Species 0.000 description 3
- 241000220317 Rosa Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- ZVOLCUVKHLEPEV-UHFFFAOYSA-N Quercetagetin Natural products C1=C(O)C(O)=CC=C1C1=C(O)C(=O)C2=C(O)C(O)=C(O)C=C2O1 ZVOLCUVKHLEPEV-UHFFFAOYSA-N 0.000 description 2
- HWTZYBCRDDUBJY-UHFFFAOYSA-N Rhynchosin Natural products C1=C(O)C(O)=CC=C1C1=C(O)C(=O)C2=CC(O)=C(O)C=C2O1 HWTZYBCRDDUBJY-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- MWDZOUNAPSSOEL-UHFFFAOYSA-N kaempferol Natural products OC1=C(C(=O)c2cc(O)cc(O)c2O1)c3ccc(O)cc3 MWDZOUNAPSSOEL-UHFFFAOYSA-N 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- -1 polyphenol compound Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229960001285 quercetin Drugs 0.000 description 2
- 235000005875 quercetin Nutrition 0.000 description 2
- 235000018553 tannin Nutrition 0.000 description 2
- 229920001864 tannin Polymers 0.000 description 2
- 239000001648 tannin Substances 0.000 description 2
- 231100000816 toxic dose Toxicity 0.000 description 2
- XBZYWSMVVKYHQN-MYPRUECHSA-N (4as,6as,6br,8ar,9r,10s,12ar,12br,14bs)-10-hydroxy-2,2,6a,6b,9,12a-hexamethyl-9-[(sulfooxy)methyl]-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-icosahydropicene-4a-carboxylic acid Chemical compound C1C[C@H](O)[C@@](C)(COS(O)(=O)=O)[C@@H]2CC[C@@]3(C)[C@]4(C)CC[C@@]5(C(O)=O)CCC(C)(C)C[C@H]5C4=CC[C@@H]3[C@]21C XBZYWSMVVKYHQN-MYPRUECHSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 244000086363 Pterocarpus indicus Species 0.000 description 1
- 235000009984 Pterocarpus indicus Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 229930003944 flavone Natural products 0.000 description 1
- 150000002213 flavones Chemical class 0.000 description 1
- 235000011949 flavones Nutrition 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- RXHIKAIVEMAPRU-JRIGQVHBSA-N sequiterpene Natural products C1=C(C)[C@@H](OC(C)=O)[C@H](O)[C@@]2(O)[C@H](C)CC[C@@H](C(C)=C)[C@H]21 RXHIKAIVEMAPRU-JRIGQVHBSA-N 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 150000003648 triterpenes Chemical class 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
-
- 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
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses application of the Guava Leaf in reducing farmland soil heavy metals toxicity.Guava Leaf is dried to constant weight, is then crushed, 60 mesh then are screened to the Guava Leaf after crushing；Pretreated Guava Leaf is launched into pending soil, is uniformly mixed, Guava Leaf injected volume is the 0.5-5% of soil total amount；Guava Leaf is handled at least 16 hours in the case where soil is in leaching state.Guava Leaf can effectively reduce farmland soil heavy metals toxicity, especially Pb-Zn ore district periphery farmland soil heavy metals toxicity, play passivation, and Guava Leaf derives from a wealth of sources, of low cost, and be environmentally protective material, will not cause secondary pollution to soil.
Description
Technical field
The embodiment of the present invention is related to heavy metal-polluted soil passivating technique, and farmland is being reduced in particular to Guava Leaf
Application in Index of Heavy Metal Toxicity in Soil, especially Pb-Zn ore district periphery farmland soil heavy metals toxicity.
Background technology
In recent years, heavy metal pollution of soil problem is increasingly serious, and it is people to administer, repair the heavy metal pollution being passivated in soil
The challenge that class faces needs to search out preferential and cures the good passivator of regulation effect to lower treatment cost.?
It is shown in the national Soil Pollution Investigation bulletins carried out in 2014, the exceeded situation of various heavy pollutant is tight in soil
It is high, wherein heavy metal Cr, Zn, Cd, Ni, Cu, Pb, As pollutant point exceeding standard rate be respectively 1.1%, 0.9%, 7.0%,
4.8%, 2.7%, 2.1%, 1.6%.In terms of heavy metal pollution source, the industrial activities such as mining, ore dressing and smelting are to cause weight
One of the main source of metallic pollution soil.Guangxi province rich in mineral resources, since the eighties in last century, non-ferrous metal is adopted
Mineral Processing Enterprises emerge in large numbers one after another, and since development model is extensive, the industrial structure is unreasonable, and environmental protection of enterprise consciousness is weak, supervision is not in place
Etc. reasons, the discarded ground heavy metal pollution of soil of industry and mining is very prominent, because the backwardness of technology and environmental protection consciousness were not at that time
By force, the waste water and dregs of mining, ore dressing plant discharge are not administered.
It is passivated heavy metal-polluted soil by chemical method, is to add passivator into soil, changes the chemistry of heavy metal-polluted soil
Existing forms, to reduce the activity and bio-toxicity of its heavy metal.Find a kind of, achievement economy height cheap with use cost
The advantages that imitating, working suitable for development pollution in wide area soil remediation and do not influence crops farming passivator is heavy metal-polluted soil dirt
It is primarily upon and solves the problems, such as in dye repairing research.
Invention content
The purpose of the present invention is to provide a kind of new applications of Guava Leaf, that is, are reducing farmland soil heavy metals toxicity,
New opplication especially in Pb-Zn ore district periphery farmland soil heavy metals toxicity.
The method of the Guava Leaf application of the present invention, includes the following steps：
Pretreatment：Guava Leaf is dried to constant weight, is then crushed, 60 then are screened to the Guava Leaf after crushing
Mesh；
It launches：Pretreated Guava Leaf is launched into pending soil, is uniformly mixed.
Reaction：Guava Leaf reacts at least 16 hours in soil extract.
Guava Leaf be Myrtaceae Psidium plant guava leaf, Guava Leaf contain it is a plurality of types of chemistry at
Point, at present it has been reported that have tannin (Fig. 1), Quercetin (Fig. 2), triterpene (Fig. 3), flavones, polyphenol compound, guava
Acid, polysaccharide, volatile oil, sequiterpene, miscellaneous terpene aldehyde class etc..
Guava Leaf has reduction heavy metal-polluted soil Leaching effect, and the ingredient acted is mainly Guava Leaf
Machine matter rich in a variety of organo-functional groups, such as-COOH ,-OH can introduce a large amount of oxygen-containing group in acidity containing a huge sum of money after dissolving
The solution of category increases Cation Exchange Capacity in Soils.It can be by forming an insoluble huge sum of money rich in-COOH ,-OH group organic matter
Category-organic double compound, heavy metal in soil can form with carboxyl (RCOOH) in the organic matter of Guava Leaf stablize in the solution
Complex compound, reduce the water-soluble state and exchangeable species component of heavy metal-polluted soil, to reduce heavy metal contaminants biology can profit
It is absorbed with property, reduces its Index of Heavy Metal Toxicity in Soil.On the other hand.Guava Leaf pH value (pH=5.92) is weakly acidic, guava
Leaf has adsorbed negatively charged ions in soil, so that soil negative electrical charge number is reduced, to reduce soil preservation heavy metal ion.
By taking guava organic matter carboxyl as an example, the mechanism that reduces soil Leaching include Guava Leaf surface carboxyl groups with again
Metal generates stable complex compound.Reaction equation is indicated with following formula：
M2++ RCOOH=RCOOM+2H+(M represents metal such as Pb, Cd etc., and RCOOH represents carboxyl in Guava Leaf organic matter
Ingredient)
It can be seen that guava leaf, which has, reduces heavy metal-polluted soil Leaching effect.
Compared with the prior art, advantage of the invention is that：
1) Guava Leaf derives from a wealth of sources, of low cost.
2) Guava Leaf is environmentally protective material, will not cause secondary pollution to soil.
3) Guava Leaf can effectively reduce farmland soil heavy metals toxicity, especially a Pb-Zn ore district periphery agricultural land soil huge sum of money
Belong to toxicity, plays passivation.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of Related Art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description merely relates to some of the present invention
Embodiment, not limitation of the present invention.
Fig. 1 is the structural formula of each tannin compositions in Guava Leaf.
Fig. 2 is the structural formula of Quercetin in Guava Leaf.
Fig. 3 is the structural formula of triterpenoid in Guava Leaf.
Fig. 4 is the place of production 1 Guava Leaf removal paddy field soil heavy metal toxicity design sketch.
Fig. 5 is the place of production 2 Guava Leaf removal paddy field soil heavy metal toxicity design sketch.
Fig. 6 is the place of production 3 Guava Leaf removal paddy field soil heavy metal toxicity design sketch.
Fig. 7 is Myrtaceae eucalyptus plant leaf removal paddy field soil heavy metal toxicity design sketch.
Fig. 8 is Myrtaceae rose fogfruit leaf removal paddy field soil heavy metal toxicity design sketch.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
It applies mode and further unrestricted detailed description is made to technical solution of the present invention.
Embodiment 1：
Certain 1 Guava Leaf of the place of production is taken, is dried under field conditions (factors) to constant weight, then the guava crushing up leaves after drying,
Guava Leaf passivator is made after being screened to 60 mesh to the Guava Leaf after crushing.
Embodiment 2：
Certain 2 Guava Leaf of the place of production is taken, is dried under field conditions (factors) to constant weight, then the guava crushing up leaves after drying,
Guava Leaf passivator is made after being screened to 60 mesh to the Guava Leaf after crushing.
Embodiment 3：
Certain 3 Guava Leaf of the place of production is taken, is dried under field conditions (factors) to constant weight, then the guava crushing up leaves after drying,
Guava Leaf passivator is made after being screened to 60 mesh to the Guava Leaf after crushing.
Embodiment 4：
Myrtaceae eucalyptus plant leaf (non-Guava Leaf) is taken, is dried under field conditions (factors) to constant weight, then after drying
Myrtaceae eucalyptus plant leaf passivator is made after being screened to 60 mesh to the leaf after crushing in crushing up leaves.
Embodiment 5：
Myrtaceae rose fogfruit leaf (non-Guava Leaf) is taken, is dried under field conditions (factors) to constant weight, then will dry
Guava crushing up leaves afterwards, obtained Myrtaceae rose fogfruit leaf is blunt after being screened to 60 mesh to the Guava Leaf after crushing
Agent.
The passivator that Examples 1 to 5 obtains is detected：
50ml centrifuge tubes add paddy field soils of the 2g by heavy metal pollutions such as lead, zinc and cadmiums, according to soil weight ratio
0,1%, 2%, 3%, 4%, 5% the Guava Leaf of embodiment 1, embodiment 2 and embodiment 3 is added again, then be added to centrifuge tube
40mlTCLP extracting solutions (pH is 2.88 ± 0.05), 200rpm shakes 18h, crosses 0.45 μm of filter membrane, extraction is measured after 25 times of dilution
Content of beary metal in liquid.The soil of passivator is not added with as space management, each processing is repeated 3 times.
According to《The measurement inductively coupled plasma mass spectrometry of 65 kinds of elements of water quality》HJ700-2014 test methods measure.
Interpretation of result：
See that Fig. 4, the guava of embodiment 1 decline obviously paddy field soil lead, cadmium, zinc TCLP Leachings.5% mass
Than, guava decline Pb in Soil, cadmium, zinc toxicity concentration removal rate are maximum, and respectively 65.47%, 40.87%, 29.32%, poison
Property reducing effect：Pb>Cd>Zn.
See Fig. 5,2 Guava Leaf of embodiment the TCLP Leachings of lead, cadmium, zinc are changed it is apparent, lead when 5% mass ratio,
Cadmium, the toxic concentration decline of zinc are maximum, and respectively 64.38%, 29.67%, 23.37%, toxicity declines effect：Pb>Cd>Zn.
See that Fig. 6,3 Guava Leaf of embodiment change the TCLP Leachings of zinc, cadmium, lead apparent.Lead when 5% mass ratio,
Cadmium, the toxic concentration decline of zinc are maximum, and respectively 63.93%, 34.83%, 32.90%.Toxicity declines effect：Pb>Cd>Zn.
See Fig. 7, it is unknown to the TCLP Leachings variation of zinc, cadmium, lead that 4 Myrtaceae eucalyptus of embodiment belongs to non-Guava Leaf
It is aobvious.
See that Fig. 8,5 Myrtaceae rose wood of embodiment belong to non-Guava Leaf and change not to the TCLP Leachings of zinc, cadmium, lead
Obviously.
The result shows that Guava Leaf, which has, reduces heavy metal-polluted soil Leaching effect.
It is pointed out that the technical concepts and features of above-mentioned preferred embodiment only to illustrate the invention, its object is to
Those skilled in the art can understand the contents of the present invention and implements according to this, and the protection of the present invention can not be limited with this
Range.Any equivalent change or modification in accordance with the spirit of the invention should be covered by the protection scope of the present invention.
Claims (2)
1. application of the Guava Leaf in reducing farmland soil heavy metals toxicity.
2. Guava Leaf application according to claim 1, which is characterized in that way is as follows：
1) it pre-processes：Guava Leaf is dried to constant weight, is then crushed, 60 mesh then are screened to the Guava Leaf after crushing；
2) it launches：Pretreated Guava Leaf is launched into pending soil, is uniformly mixed, Guava Leaf injected volume is soil
The 0.5-5% of earth total amount.
3) it reacts：Guava Leaf is handled at least 16 hours in the case where soil is in leaching state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510301.7A CN108753301A (en) | 2018-05-24 | 2018-05-24 | Application of the Guava Leaf in reducing farmland soil heavy metals toxicity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510301.7A CN108753301A (en) | 2018-05-24 | 2018-05-24 | Application of the Guava Leaf in reducing farmland soil heavy metals toxicity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108753301A true CN108753301A (en) | 2018-11-06 |
Family
ID=64006337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810510301.7A Pending CN108753301A (en) | 2018-05-24 | 2018-05-24 | Application of the Guava Leaf in reducing farmland soil heavy metals toxicity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108753301A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101313922A (en) * | 2007-05-30 | 2008-12-03 | 广州联创思远利生物科技有限公司 | Method for obtaining extract from several frequently seen plants and uses of the extract |
| CN102920785A (en) * | 2012-11-27 | 2013-02-13 | 哈药集团中药二厂 | Method for extracting total flavone from guava leaves |
-
2018
- 2018-05-24 CN CN201810510301.7A patent/CN108753301A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101313922A (en) * | 2007-05-30 | 2008-12-03 | 广州联创思远利生物科技有限公司 | Method for obtaining extract from several frequently seen plants and uses of the extract |
| CN102920785A (en) * | 2012-11-27 | 2013-02-13 | 哈药集团中药二厂 | Method for extracting total flavone from guava leaves |
Non-Patent Citations (2)
| Title |
|---|
| 杜文慧等: "中轻度污染菜地土壤中重金属阻控剂组合优化研究", 《杭州师范大学学报（自然科学版）》 * |
| 谢枫等: "柿单宁在重金属吸附中的应用研究进展", 《华中农业大学学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Jinxia et al. | Effects of the accumulation of the rare earth elements on soil macrofauna community | |
| CN106734134B (en) | A method for remediating soil heavy metal pollution in lead-zinc mining area | |
| Michael et al. | The corrosion inhibition of mild steel in sulphuric acid solution by flavonoid (catechin) separated from Nypa fruticans Wurmb leaves extract | |
| Ren et al. | The pioneering role of bryophytes in ecological restoration of manganese waste residue areas, Southwestern China | |
| Pang et al. | Chemical speciations of heavy metals and their risk assessment in agricultural soils in a coal mining area from Xingren County, Guizhou Province, China | |
| CN113046088A (en) | Heavy metal passivator and application thereof | |
| Adiloğlu | Using phytoremediation with canola to remove cobalt from agricultural soils | |
| Yeh et al. | Chelator-enhanced phytoextraction of copper and zinc by sunflower, Chinese cabbage, cattails and reeds | |
| CN109135756A (en) | A kind of eluent and its elution recovery method for heavy-metal contaminated soil | |
| Bajpai et al. | Recongregation of tree species of Katerniaghat wildlife sanctuary, Uttar Pradesh, India | |
| CN108160698A (en) | Liquid and preparation method thereof is repaired in a kind of heavy-metal contaminated soil elution of environment-friendly high-efficiency | |
| Novo et al. | The potential of Salvia verbenaca for phytoremediation of copper mine tailings amended with technosol and compost | |
| CN105295941A (en) | Plant remains deactivator for passivating heavy metals in micropowder soil | |
| CN103454258B (en) | A kind of evaluation method of water humus material complexing heavy metal potentiality | |
| Liu et al. | The effect of municipal sludge compost on the mobility and bioavailability of Cd in a sierozem-wheat system in an arid region northwest of China | |
| CN108753301A (en) | Application of the Guava Leaf in reducing farmland soil heavy metals toxicity | |
| González-Chávez et al. | Wild plants canopies may adsorb dust particles eroded from mine tailings, decreasing potentially toxic elements dispersion | |
| CN106975656A (en) | A kind of method that utilization four-o'clock repairs chromium-polluted soil | |
| Dey et al. | Soil fertility loss and heavy metal accumulation in and around functional brick kilns in Cachar District, Assam, India: A multivariate analysis | |
| Saltan et al. | Ecophysiological features of Larix sibirica in urban ecosystems of the Kola north in the railway influence zone | |
| CN105331367A (en) | Preparation method of modified papermaking sludge soil heavy metal passivator | |
| Zhao et al. | Effects of irrigation and drainage modes on the residual characteristics of heavy metals in soil | |
| Imran et al. | Screening and signifying the uranium remediation level of Alternanthera philoxeroides and Eichhornia crassipes from aquatic medium. | |
| Ogbonna et al. | Soil chemical characteristics in wet and dry season at Iva long wall underground mined site, Nigeria | |
| CN113773685A (en) | Plant extract-containing angstrom biomass preservative 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |
|
| RJ01 | Rejection of invention patent application after publication |