CN107030098A - A kind of method of repairing heavy metal in soil pollution - Google Patents
A kind of method of repairing heavy metal in soil pollution Download PDFInfo
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- CN107030098A CN107030098A CN201611088571.0A CN201611088571A CN107030098A CN 107030098 A CN107030098 A CN 107030098A CN 201611088571 A CN201611088571 A CN 201611088571A CN 107030098 A CN107030098 A CN 107030098A
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- soil
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- chinese chestnut
- hybrid giant
- giant napier
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Abstract
The invention discloses a kind of method of repairing heavy metal in soil pollution, comprise the following steps：Selection is repaired by the soil of heavy metal pollution；Special complex fertilizer is put in heavy-metal contaminated soil, Chinese chestnut and hybrid giant napier are planted after plowed soils；The planting density that Chinese chestnut is 1 2m according to seeding row spacing during plantation opens kind of a plant hole, 12 cave hybrid giant napier kind plant holes is opened between 2 plants of Chinese chestnuts, the wherein height of seedling of Chinese chestnut is 1.2 1.5m, and the height of seedling of hybrid giant napier is 20 30cm；Plant after 60 70 days, the plant height of hybrid giant napier reaches that 1.2 1.5m can be gathered in, the urea that every mu applies 15 20kg again after harvesting every time；Chinese chestnut plantation cut bar once in winter every 2 years in high 1 meter of tree trunk place, and with plastic film wrapped section head.The inventive method is by selecting the Chinese chestnut and hybrid giant napier that survival ability is strong, reproduction speed is fast, growth cycle is fast, reasonable arrangement planting density, and severe heavy-metal contaminated soil is governed after plantation.After this method planting plants 2 years, the cadmium of soil, lead, chromium, copper, the removal amount of zinc and nickel reach more than 70%.
Description
Technical field
The present invention relates to biotic environment recovery technique field, especially a kind of method of repairing heavy metal in soil pollution.
Background technology
Soil is the important component of environment, is the important natural resources that human society is depended on for existence, while being also ring
The recipient of border pollution.With the rapid development of economy, the quickening of Development of China's Urbanization, a large amount of pollutants enter environment, cause ring
Border deterioration, soil pollution is aggravated.Due to the exploitation and smelting of mineral, the application of farmland sludge, sewage irrigation, atmospheric sedimentation
And the heavy-metal contaminated soil phenomenon that some other class activities are caused is increasingly subject to extensive concern.The huge sum of money owner of contaminated soil
There are Hg, Cu, Zn, Ni, Cd, Pb, Cr and As etc..Heavy metal is accumulated to a certain extent in soil, does not only result in soil degradation,
Crop yield and quality decline, and can be enriched in plant and human body is entered by food chain, human health is seriously threatened,
Therefore the research and preventing and treating of heavy metal contaminated soil are very urgent.
At present, it is not only costly using physics, chemistry and biological method restoration of soil polluted by heavy metal, and can destroy
Soil texture, reduction soil fertility and bioactivity.The method of phytoremediation contaminated soil is to the dirt in soil using plant
Dye thing is fixed, absorbed, to remove the pollutant in soil environment or its harmfulness is minimized or is disappeared.Therefore, plant
Thing restoration of soil polluted by heavy metal technology has low cost, maintenance biological activity of soil and soil physical properties, is adapted to large area
The advantages of administering and do not easily cause secondary pollution, it has also become current study hotspot.
The content of the invention
Present invention aims at for heavy metal pollution of soil problem, there is provided the side that a kind of repairing heavy metal in soil pollutes
Method.This method passes through plant absorption heavy metal so that by the soil energy of heavy metal pollution by mixing interplanting Chinese chestnut and hybrid giant napier
It is enough to repair.
In order to realize the above object the technical solution adopted by the present invention is as follows：
A kind of method of repairing heavy metal in soil pollution, comprises the following steps：
（1）Selection is repaired by the soil of heavy metal pollution；
（2）Special complex fertilizer is put in heavy-metal contaminated soil, Chinese chestnut and hybrid giant napier are planted after plowed soils；Plate during plantation
Chestnut opens kind of a plant hole according to the planting density that seeding row spacing is 1-2m, and 1-2 caves hybrid giant napier kind plant hole is opened between 2 plants of Chinese chestnuts, wherein
The height of seedling of Chinese chestnut is 1.2-1.5m, and the height of seedling of hybrid giant napier is 20-30cm；
（3）After plantation 60-70 days, the plant height of hybrid giant napier reaches that 1.2-1.5m can be gathered in, and later each two month is gathered in once, often
The urea that every mu applies 15-20kg again after secondary harvesting；Chinese chestnut plantation every 2 years winter in high 1 meter of tree trunk place section bar once, and
Head is cut with plastic film wrapped.
Preferably, above step（2）The special complex fertilizer includes the raw material of following parts by weight：30-50 parts of sisal dregs, flower
5-10 parts of raw cake 10-20 parts, 15-25 parts of silkworm excrement, 15-20 parts of urea, 8-12 parts of calcium superphosphate and potassium chloride.
Preferably, above-described heavy-metal contaminated soil is that cadmium, lead, chromium, copper, zinc and nickel content exceed national standard
GB15618-1995《Standard of soil environment quality》The heavy-metal contaminated soil of secondary standard.
Preferably, the soil progress reparation of the heavy metal pollution is reached after standard of soil environment quality, by between Chinese chestnut tree
Move into seeding row spacing 5m × 6m and build economic forest, or all transplant, recover proportion of crop planting, or routinely planting forage grass.
Compared with prior art, advantages of the present invention and have the beneficial effect that：
1st, the inventive method is rationally pacified by selecting the Chinese chestnut and hybrid giant napier that survival ability is strong, reproduction speed is fast, growth cycle is fast
Seeding density in planting, severe heavy-metal contaminated soil is governed after plantation, solves heavy-metal contaminated soil crop at this stage
Plant is short and small, biomass is small, environment remediation effect is poor the problem of exist.
2nd, the inventive method can improve a huge sum of money by the main component using sisal dregs, peanut cake and silkworm excrement as fertilizer
The biological effectiveness of category, and then promote the absorption of plant heavy metal, is greatly shortened repair time, improve modification efficiency and
The utilization rate of soil.
3rd, the inventive method utilizes function phytobiocoenose repairing heavy metal pollution, is green original flavor reparation, does not result in two
Secondary pollution, repair process will not destroy original ecological environment, be finally reached recovery fertility, promote regional landscape and
The humorous, ecological balance and the long-term goal of sustainable development.
4th, this method plantation Chinese chestnut and hybrid giant napier after 2 years, the cadmium of soil, lead, chromium, copper, the removal amount of zinc and nickel reach
More than 70%.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described, but is not limited to protection scope of the present invention.
Embodiment 1
A kind of method of repairing heavy metal in soil pollution, comprises the following steps：
（1）It is 6.8 to choose soil pH value, and cadmium, lead, the content of chromium and copper are respectively 0.61mg/kg, 345mg/kg, 323mg/kg
Repaired with the soil of 78mg/kg heavy metal pollution；
（2）Special complex fertilizer is put in heavy-metal contaminated soil with every mu with 120kg, Chinese chestnut and emperor are planted after plowed soils
Bamboo grass；Chinese chestnut opens kind of a plant hole according to the planting density that seeding row spacing is 1.5m during plantation, and 2 cave hybrid giant napiers are opened between 2 plants of Chinese chestnuts
Plant hole is planted, the wherein height of seedling of Chinese chestnut is 1.2m, and the height of seedling of hybrid giant napier is 25cm；
（3）After plantation 60 days, the plant height of hybrid giant napier reaches that 1.2m can be gathered in, and, receives every time later harvesting every two months once
Cut the latter every mu urea for applying 15kg again；Chinese chestnut plantation every 2 years winter in high 1 meter of tree trunk place section bar once, and use plastics
Film parcel cuts head.
Chinese chestnut and hybrid giant napier are planted after 2 years, cadmium in soil, lead, the content of chromium and copper be respectively 0.13mg/kg,
64.2mg/kg, 52.8mg/kg and 11.18mg/kg.
The special complex fertilizer includes the raw material of following parts by weight：35 parts of sisal dregs, 12 parts of peanut cake, 15 parts of silkworm excrement, urine
5 parts of 18 parts of element, 8 parts of calcium superphosphate and potassium chloride.Fertilizer is prepared according to conventional preparation method.
Embodiment 2
A kind of method of repairing heavy metal in soil pollution, comprises the following steps：
（1）It is 6.5 to choose soil pH value, lead, copper, the content of zinc and nickel be respectively 298mg/kg, 74mg/kg, 203mg/kg and
The soil of 43mg/kg heavy metal pollution is repaired；
（2）Special complex fertilizer is put in heavy-metal contaminated soil with every mu with 150kg, Chinese chestnut and emperor are planted after plowed soils
Bamboo grass；Chinese chestnut opens kind of a plant hole according to the planting density that seeding row spacing is 1m during plantation, and 1 cave hybrid giant napier kind is opened between 2 plants of Chinese chestnuts
The height of seedling of plant hole, wherein Chinese chestnut is 1.5m, and the height of seedling of hybrid giant napier is 20cm；
（3）After plantation 65 days, the plant height of hybrid giant napier reaches that 1.3m can be gathered in, and, receives every time later harvesting every two months once
Cut the latter every mu urea for applying 18kg again；Chinese chestnut plantation every 2 years winter in high 1 meter of tree trunk place section bar once, and use plastics
Film parcel cuts head.
Chinese chestnut and hybrid giant napier are planted after 2 years, lead in soil, copper, the content of zinc and nickel be respectively 49.8mg/kg,
10.98mg/kg, 71.64mg/kg and 15.6mg/kg.
The special complex fertilizer includes the raw material of following parts by weight：30 parts of sisal dregs, 15 parts of peanut cake, 20 parts of silkworm excrement, urine
10 parts of 15 parts of element, 12 parts of calcium superphosphate and potassium chloride.Fertilizer is prepared according to conventional preparation method.
Embodiment 3
A kind of method of repairing heavy metal in soil pollution, comprises the following steps：
（1）It is 6.5 to choose soil pH value, cadmium, lead, chromium, copper, the content of zinc and nickel be respectively 0.68mg/kg, 326mg/kg,
The soil of 348mg/kg, 86mg/kg, 292mg/kg and 62mg/kg heavy metal pollution is repaired；
（2）Special complex fertilizer is put in heavy-metal contaminated soil with every mu with 180kg, Chinese chestnut and emperor are planted after plowed soils
Bamboo grass；Chinese chestnut opens kind of a plant hole according to the planting density that seeding row spacing is 2m during plantation, and 2 cave hybrid giant napier kinds are opened between 2 plants of Chinese chestnuts
The height of seedling of plant hole, wherein Chinese chestnut is 1.3m, and the height of seedling of hybrid giant napier is 30cm；
（3）After plantation 70 days, the plant height of hybrid giant napier reaches that 1.5m can be gathered in, and, receives every time later harvesting every two months once
Cut the latter every mu urea for applying 20kg again；Chinese chestnut plantation every 2 years winter in high 1 meter of tree trunk place section bar once, and use plastics
Film parcel cuts head.
Chinese chestnut and hybrid giant napier are planted after 2 years, cadmium in soil, lead, chromium, copper, the content of zinc and nickel be respectively 0.14mg/kg,
60.8mg/kg, 45.9mg/kg, 12.79mg/kg, 73.28mg/kg and 11.79mg/kg.
The special complex fertilizer includes the raw material of following parts by weight：50 parts of sisal dregs, 20 parts of peanut cake, 18 parts of silkworm excrement, urine
8 parts of 20 parts of element, 10 parts of calcium superphosphate and potassium chloride.Fertilizer is prepared according to conventional preparation method.
Embodiment 4
A kind of method of repairing heavy metal in soil pollution, comprises the following steps：
（1）It is 6.8 to choose soil pH value, and the content of cadmium and lead is respectively 0.79mg/kg and 349mg/kg heavy metal pollution
Soil is repaired；
（2）Special complex fertilizer is put in heavy-metal contaminated soil with every mu with 200kg, Chinese chestnut and emperor are planted after plowed soils
Bamboo grass；Chinese chestnut opens kind of a plant hole according to the planting density that seeding row spacing is 1.5m during plantation, and 1 cave hybrid giant napier is opened between 2 plants of Chinese chestnuts
Plant hole is planted, the wherein height of seedling of Chinese chestnut is 1.2m, and the height of seedling of hybrid giant napier is 20cm；
（3）After plantation 70 days, the plant height of hybrid giant napier reaches that 1.4m can be gathered in, and later each two month harvesting once, is gathered in every time
Afterwards every mu apply 18kg again urea；Chinese chestnut plantation every 2 years winter in high 1 meter of tree trunk place section bar once, and use plastic foil
Parcel cuts head.
Chinese chestnut and hybrid giant napier are planted after 2 years, the content of cadmium and lead is respectively 0.15mg/kg and 66.4mg/kg in soil.
The special complex fertilizer includes the raw material of following parts by weight：40 parts of sisal dregs, 10 parts of peanut cake, 25 parts of silkworm excrement, urine
7 parts of 18 parts of element, 12 parts of calcium superphosphate and potassium chloride.Fertilizer is prepared according to conventional preparation method.
Claims (3)
1. a kind of method of repairing heavy metal in soil pollution, it is characterised in that：Comprise the following steps：
（1）Selection is repaired by the soil of heavy metal pollution；
（2）Special complex fertilizer is put in heavy-metal contaminated soil, Chinese chestnut and hybrid giant napier are planted after plowed soils；Plate during plantation
Chestnut opens kind of a plant hole according to the planting density that seeding row spacing is 1-2m, and 1-2 caves hybrid giant napier kind plant hole is opened between 2 plants of Chinese chestnuts, wherein
The height of seedling of Chinese chestnut is 1.2-1.5m, and the height of seedling of hybrid giant napier is 20-30cm；
（3）After plantation 60-70 days, the plant height of hybrid giant napier reaches that 1.2-1.5m can be gathered in, and later each two month is gathered in once, often
The urea that every mu applies 15-20kg again after secondary harvesting；Chinese chestnut plantation every 2 years winter in high 1 meter of tree trunk place section bar once, and
Head is cut with plastic film wrapped.
2. the method that repairing heavy metal in soil pollutes according to claim 1, it is characterised in that：Step（2）It is described special multiple
Hefei includes the raw material of following parts by weight：30-50 parts of sisal dregs, 10-20 parts of peanut cake, 15-25 parts of silkworm excrement, 15-20 parts of urea,
5-10 parts of 8-12 parts of calcium superphosphate and potassium chloride, every mu is applied special complex fertilizer 120-180kg.
3. the method that repairing heavy metal in soil pollutes according to claim 1, it is characterised in that：Described heavy metal polluted soil
Earth is that cadmium, lead, chromium, copper, zinc and nickel content exceed standard GB/T 15618-1995《Standard of soil environment quality》Two grades of marks
Accurate heavy-metal contaminated soil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611088571.0A CN107030098A (en) | 2016-12-01 | 2016-12-01 | A kind of method of repairing heavy metal in soil pollution |
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| CN201611088571.0A CN107030098A (en) | 2016-12-01 | 2016-12-01 | A kind of method of repairing heavy metal in soil pollution |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107593368A (en) * | 2017-10-17 | 2018-01-19 | 惠州市无龄康态健康科技有限公司 | A kind of imitative silkworm excrement particle for vegetable cultivation |
| CN107671114A (en) * | 2017-11-22 | 2018-02-09 | 新乡学院 | A kind of heavy metal lead cadmium pollution soil biological renovation method based on plant |
| CN108380665A (en) * | 2018-01-31 | 2018-08-10 | 昆山合纵生态科技有限公司 | A method of soil remediation is carried out to heavy metal cadmium |
| CN108380666A (en) * | 2018-01-31 | 2018-08-10 | 昆山合纵生态科技有限公司 | A method of soil remediation is carried out to heavy metal chromium pollution |
Citations (1)
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| CN103406349A (en) * | 2013-08-21 | 2013-11-27 | 广西壮族自治区环境保护科学研究院 | Method for remediating acid/heavy metal lead composite polluted soil by using Pennisetum hydridum |
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2016
- 2016-12-01 CN CN201611088571.0A patent/CN107030098A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406349A (en) * | 2013-08-21 | 2013-11-27 | 广西壮族自治区环境保护科学研究院 | Method for remediating acid/heavy metal lead composite polluted soil by using Pennisetum hydridum |
Non-Patent Citations (1)
| Title |
|---|
| 马伟楼等: "生物法除锰技术研究综述", 《河北农业科学》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107593368A (en) * | 2017-10-17 | 2018-01-19 | 惠州市无龄康态健康科技有限公司 | A kind of imitative silkworm excrement particle for vegetable cultivation |
| CN107671114A (en) * | 2017-11-22 | 2018-02-09 | 新乡学院 | A kind of heavy metal lead cadmium pollution soil biological renovation method based on plant |
| CN108380665A (en) * | 2018-01-31 | 2018-08-10 | 昆山合纵生态科技有限公司 | A method of soil remediation is carried out to heavy metal cadmium |
| CN108380666A (en) * | 2018-01-31 | 2018-08-10 | 昆山合纵生态科技有限公司 | A method of soil remediation is carried out to heavy metal chromium pollution |
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Application publication date: 20170811 |