CN109482631A - A method of Grown In Zinc Contaminated Soil and sludge are repaired using leaf aster is bored - Google Patents
A method of Grown In Zinc Contaminated Soil and sludge are repaired using leaf aster is bored Download PDFInfo
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- CN109482631A CN109482631A CN201811639895.8A CN201811639895A CN109482631A CN 109482631 A CN109482631 A CN 109482631A CN 201811639895 A CN201811639895 A CN 201811639895A CN 109482631 A CN109482631 A CN 109482631A
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- aster
- sludge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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- Environmental & Geological Engineering (AREA)
- Mycology (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- General Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Soil Sciences (AREA)
- Botany (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to soil and sludge pollution to repair field, specially a kind of method for repairing Grown In Zinc Contaminated Soil and sludge using leaf aster is bored.It the described method comprises the following steps: (1) leaf aster seedling replanting will be bored extremely by the soil and sludge of zinc pollution, or leaf aster seed sowing will be bored to by the soil and sludge of zinc pollution；(2) it bores leaf aster plant strain growth animated period and gathers in aerial part later, the brill leaf aster of harvesting removes centralized processing；(3) repeat step (2) terminates until boring leaf aster Growing season, extracts with root and bores the centralized processing of leaf aster.The Zn content in contaminated soil or sludge can be effectively reduced in the method, to achieve the purpose that Zn content in repairing polluted soil or sludge, easy to operate, at low cost, suit large area to popularize application.
Description
[technical field]
The present invention relates to soil and sludge pollution to repair field, and in particular to a kind of native using leaf aster reparation zinc pollution is bored
The method of earth and sludge.
[background technique]
In recent years, with the aggravation and agriculturalization that the scale for developing and using mineral resources gradually increases, industrial city is polluted
The increase of substance classes, quantity is learned, heavy metal pollution of soil is got worse.Heavy metal in soil can by migration, conversion and
The effect of " biomagnification " of enrichment process and food chain, causes immeasurable harm to human health and ecological environment.Soil
Zinc (Zn) pollution is more prominent in heavy metal pollution, and farmland Zn pollution source is extensive, including mining, industrial and mining enterprises' discharge
Give up clear, waste water, exhaust gas, sewage filling is generally applied, with the agricultural chemicals such as the solid refuses such as sludge, phosphate fertilizer and atmospheric fallout etc..
Since heavy metal is difficult to be degraded by edaphon, and heavy metal pollution has chronicity, cumulative bad, concealment, irreversible
The characteristics of property, cause Heavy Metal Pollution Control extremely difficult.
Currently, the restorative procedure of heavy-metal contaminated soil mainly has physics, chemistry and biology reparation.Physical chemistry reparation
Project amount is big, expensive, it is difficult to be used on a large scale, it is also possible to cause secondary pollution, and to soil fertility, soil
Structure and edaphon will cause adverse effect.Phytoremediation is the enriching plant kind for cultivating growth naturally or heredity
It plants in absorbing heavy metal on contaminated soil, to reduce heavy metal content in soil to achieve the purpose that improvement.It has efficiently low
Consumption, without secondary pollution, the advantages that can be reduced the soil erosion, beautifying the environment can reach to contaminated soil permanent cleanliness reparation, thus
It is acknowledged as environmentally friendly green recovery technique in situ, has become the research hotspot of international academic community.
The heavy metal pollution problem for solving to get worse is repaired, compels to develop to find and screens new plant variety resource, use
In the biological prosthetic of heavy-metal contaminated soil.Although the resourceful multiplicity of plant variety on the earth, to determine that certain plant is
It is no that there is heavy metal accumulation or super enrichment characteristic, it is the engineering taken time and effort, even if spending a large amount of human and material resources and wealth
Power may not necessarily also achieve one's goal and filter out ideal plant variety.
At present developed can be used for remediating heavy metal Zn contaminated soil plant mainly include copper-nickel alloy money, leaf mustard, reed,
Sedum alfredii Hance, Picris divaricata, ciliate desert-grass etc., but be applied to repair the report of Grown In Zinc Contaminated Soil and sludge there has been no leaf aster will be bored.
[summary of the invention]
Goal of the invention of the invention is: providing a kind of method for repairing Grown In Zinc Contaminated Soil and sludge using leaf aster is bored.
The method is easy to operate, at low cost, and the zinc pollution in soil and sludge can be effectively reduced.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A method of Grown In Zinc Contaminated Soil and sludge are repaired using leaf aster is bored, comprising the following steps:
(1) leaf aster seedling replanting will be bored to by the soil or sludge of zinc pollution, or leaf aster seed sowing will be bored extremely
By in the soil or sludge of zinc pollution；
(2) it bores leaf aster plant strain growth animated period and gathers in aerial part later, the brill leaf aster of harvesting removes centralized processing；
(3) repeat step (2) terminates until boring leaf aster Growing season, extracts with root and bores the centralized processing of leaf aster.
Further, the brill leaf aster is that composite family aster platymiscium bores leaf aster Aster subulatus Michx..
Further, in step (1), the brill leaf aster seedling height of seedling is 7-10cm.
Further, in step (1), the brill leaf aster seedling replanting is 20-30 lis in the seeding row spacing of soil or sludge
Rice × 20-30 centimetres.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
Brill leaf aster (Aster subulatus Michx.) also known as scissors dish, feverfew in the present invention, native radix bupleuri,
Kowloon arrow, Aster subulatus belong to one kind of composite family aster.North America is originated in, the ground such as moist Gui earth is born in, is distributed widely in
The ground such as Guangxi, Guangdong, Jiangsu, Zhejiang, Jiangxi, Hunan, Fujian, boring leaf aster is that the speed of growth is fast, biomass is big, resistance
By force, it is easy to survive, can directly be transplanted or grows seed sowing, does not need to carry out particular tube in entire growth course
Reason.
Inventor always works on Heavy Metals In Environment for many years and repairs study on regulation work, experimental research find that chrysanthemum
Section's aster platymiscium bores leaf aster (the entitled Aster subulatus Michx. of Latin), to the weight in the environment such as soil and sludge
Metal Zn has certain uptake and accumulation enriched character.
The present invention, which takes full advantage of, bores leaf aster to the enriched character of heavy metal Zn, by its seedling replanting or by its seed it is straight
Contaminated by heavy metals soil or sludge are cast to, composite family Aster bores leaf aster and Zn is adsorbed to its root using its root system, so
Afterwards by growth, the heavy metal of root is transferred into aboveground vegetation part, when aerial part forms certain biomass
It carries out regular toothing harvesting or is planted again after whole strain harvest together with root, diffusivity is strong with the wind for seed, natural propagation growth
Quickly, Annual growth cycle is long, and the Zn content in contaminated soil or sludge can be effectively reduced, to reach repairing polluted soil or dirt
The purpose of Zn content in mud, the method is easy to operate, at low cost, can effectively purify water, and suit large area to popularize application.
[Detailed description of the invention]
Fig. 1, which is that the processing of different Zn gradient concentrations is lower, bores leaf aster the upperground part biomass, and a, b are significance of difference mark.
[specific embodiment]
Embodiment 1
This experiment is located in scientific research and testing core space solarium, Guangxi Academy of Agricultural Sciences greenhouse and carries out.
Test is carried out using barrel plant analog form, and soil is derived from Guangxi academy of agricultural sciences experimental plot topsoil soils, and it is dense to apply gradient
Heavy metal Zn is spent in soil, and composite family aster platymiscium is bored in Zn contaminated soil by the plantation of leaf aster using direct transplanting method
In.Contaminated soil sets 5 processing altogether.Application concentration is 0mg/kg (T0), 200mg/kg (T1), 400mg/kg (T2), 600mg/
kg(T3),800mg/kg(T4).The Heavy Metals of application are analytically pure ZnSO4·7H2Soil is added in O in solid form,
It waters and impregnates after mixing well, the heavy metal of addition and soil is made to carry out sufficiently balance aging, leaf aster is bored in transplanting after 1 month,
3 repetitions are arranged in each processing, and 3 plants every barrel, the content of heavy metal Zn is gathered in and measured in plantation after 3 months.
Different disposal bores leaf aster the upperground part biomass as shown in Figure 1, a, b, c are significance of difference mark.With T0 processing
It compares, only T1 processing is bored leaf aster the upperground part biomass and be increased, increasing degree 9.30%；T2, T3 and T4 processing by
Zn, which influences brill leaf aster the upperground part biomass, certain amplitude reduction, reduces by 15.25%, 24.03% and 32.45% respectively.
Compared with T1 processing, leaf aster the upperground part biomass is bored as the increase of Zn concentration is in gradually decrease trend.When Zn concentration is
When 800mg/kg, bores leaf aster the upperground part biomass and decline obvious (p < 0.05), the growth for boring leaf aster will receive to a certain degree
Inhibition.Although illustrating that brill leaf aster is relatively strong to Zn patience but has certain limit.
Leaf aster is bored under 1. difference Zn concentration treatment conditions of table to the enrichment characteristics of Zn
Remarks: IF is transfer ratio, and BCF is concentration coefficient.
Table 1 the result shows that, soil Zn apply concentration in T1-T4 concentration, brills leaf aster overground part concentration coefficient be 0.94-
5.85, transfer ratio bores leaf tatarian aster root, stem, leaf texture's Zn content and increases with the increase for applying concentration respectively in 0.76-1.66
It is high.
Embodiment 2
In early April, 2018 is 456.5mg/ in heavy metal Zn pollution concentration using seed direct-seeding under natural conditions
Composite family aster platymiscium is planted in kg soil bores leaf aster (Aster subulatus Michx.)；It is 25 centimetres that seeding row spacing, which is broadcast live,
The aerial part that plant is gathered in after × 25 centimetres, 120 days, measuring its overground part heavy metal Zn content is 1519.6mg/kg.To from
The brill leaf aster gathered in soil carries out concentrating ashing processing, then carries out mentioning for Zn by ashes security landfill or as raw material
It takes.
Embodiment 3
In late June, 2017 is 855.7mg/kg pollution in heavy metal Zn under natural conditions using direct transplanting method
Sludge in plantation composite family aster platymiscium bore leaf aster (Aster subulatus Michx.).The brill leaf aster seedling of transplanting
Height of seedling is 7-10cm, and seeding row spacing gathers in the aerial part of plant after being 30 centimetres, 95 days of 20 cm x, measures its overground part huge sum of money
Category Zn content is 4738.4mg/kg.The brill leaf aster gathered in from soil is carried out to concentrate ashing processing, then by ashes safety
Landfill or the extraction that Zn is carried out as raw material.
Through the foregoing embodiment 1,2 and 3 as it can be seen that the present invention by heavy-metal contaminated soil plant bore leaf aster, can
The heavy metal Zn in contaminated soil is significantly absorbed, to achieve the purpose that effective remediating heavy metal Zn contaminated soil and sludge.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (4)
1. a kind of method for repairing Grown In Zinc Contaminated Soil and sludge using leaf aster is bored, which comprises the following steps:
(1) leaf aster seedling replanting will be bored to by the soil or sludge of zinc pollution, or leaf aster seed sowing will be bored to by zinc
In contaminated soil or sludge；
(2) it bores leaf aster plant strain growth animated period and gathers in aerial part later, the brill leaf aster of harvesting removes centralized processing；
(3) repeat step (2) terminates until boring leaf aster Growing season, extracts with root and bores the centralized processing of leaf aster.
2. a kind of method for repairing Grown In Zinc Contaminated Soil and sludge using leaf aster is bored according to claim 1, feature exist
In the brill leaf aster is that composite family aster platymiscium bores leaf aster Aster subulatus Michx..
3. a kind of method for repairing Grown In Zinc Contaminated Soil and sludge using leaf aster is bored according to claim 1, feature exist
In in step (1), the brill leaf aster seedling height of seedling is 7-10cm.
4. a kind of method for repairing Grown In Zinc Contaminated Soil and sludge using leaf aster is bored according to claim 1, feature exist
In in step (1), the brill leaf aster seedling replanting is 20-30 centimetres of 20-30 cm x in the seeding row spacing of soil or sludge.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639895.8A CN109482631A (en) | 2018-12-29 | 2018-12-29 | A method of Grown In Zinc Contaminated Soil and sludge are repaired using leaf aster is bored |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639895.8A CN109482631A (en) | 2018-12-29 | 2018-12-29 | A method of Grown In Zinc Contaminated Soil and sludge are repaired using leaf aster is bored |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372016A (en) * | 2008-10-16 | 2009-02-25 | 昆明理工大学 | Plant repair method for treating soil having combined pollution of arsenic, lead and cadmium |
| CN100471586C (en) * | 2006-05-16 | 2009-03-25 | 广东省农业科学院土壤肥料研究所 | Method for extracting zinc from sludge continuouslly and restoring zinc pollution in soil by purple Jasmine |
| JP2009235049A (en) * | 2008-03-25 | 2009-10-15 | Yanagi Tomotama | Composition for controlling plant pest |
-
2018
- 2018-12-29 CN CN201811639895.8A patent/CN109482631A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100471586C (en) * | 2006-05-16 | 2009-03-25 | 广东省农业科学院土壤肥料研究所 | Method for extracting zinc from sludge continuouslly and restoring zinc pollution in soil by purple Jasmine |
| JP2009235049A (en) * | 2008-03-25 | 2009-10-15 | Yanagi Tomotama | Composition for controlling plant pest |
| CN101372016A (en) * | 2008-10-16 | 2009-02-25 | 昆明理工大学 | Plant repair method for treating soil having combined pollution of arsenic, lead and cadmium |
Non-Patent Citations (1)
| Title |
|---|
| 张治国: "复垦区土壤重金属污染特征及农田杂草修复潜力研究", 《万方学位论文数据库》 * |
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