CN108284122A - A kind of restorative procedure of polycyclic aromatic hydrocarbon pollution - Google Patents
A kind of restorative procedure of polycyclic aromatic hydrocarbon pollution Download PDFInfo
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- CN108284122A CN108284122A CN201810064655.3A CN201810064655A CN108284122A CN 108284122 A CN108284122 A CN 108284122A CN 201810064655 A CN201810064655 A CN 201810064655A CN 108284122 A CN108284122 A CN 108284122A
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- soil
- aromatic hydrocarbon
- polycyclic aromatic
- hydrocarbon pollution
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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
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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
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- General Health & Medical Sciences (AREA)
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- Molecular Biology (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
A kind of restorative procedure of polycyclic aromatic hydrocarbon pollution arranges polycyclic aromatic hydrocarbon pollution to be repaired, clears up the sundries on soil；Soil enrichment agent and soil conditioner are dispensed on soil after the cleaning；Polycyclic aromatic hydrocarbon pollution to be repaired is turned over, black nightshade and different types of oily certain herbaceous plants with big flowers are interplanted on the soil after turning over；Screening is to the maximum sunflower cultivars of PAHs in soil degradation rate, after black nightshade and oily certain herbaceous plants with big flowers maturation, plant is all gathered in, by harvesting phytoremediation polycyclic aromatic hydrocarbon pollution, while part solves processing and the disposal difficulties of agricultural crop straw.
Description
Technical field
The present invention relates to the Treatment process field of soil, especially a kind of restorative procedure of polycyclic aromatic hydrocarbon pollution.
Background technology
The many industrial city suburbs in China already lead to me because of the direct irrigated farmland of a large amount of reference raw sewerages
State's irrigating region soil is by different degrees of polycyclic aromatic hydrocarbons contaminated.Polycyclic aromatic hydrocarbon has teratogenesis, carcinogenic and mutagenic " three cause "
Effect, it can be entered in human body and in environment by many approach, be constituted a serious threat to health and Environmental security.It is more
Cycloaromatics is usually adsorbed by soil particle due to its poorly water-soluble, and then endangers soil ecosystem.
Currently, the recovery technique of polycyclic aromatic hydrocarbon pollution mainly has chemical restoration, physical restoration and biological prosthetic
Method.Wherein biological restoration includes the technologies such as phytoremediation, microorganism remediation and plant-microorganism joint reparation again.Plant is repaiied
It is multiple due to its small investment, it is easy to operate and environmentally protective the features such as, it has also become current research hotspot.
Since the water solubility of polycyclic aromatic hydrocarbon is low, there is stronger adsorptivity with soil particle, its biological effectiveness is caused to drop
It is low, it is difficult to be absorbed by plants degradation, limit the efficiency of phytoremediation.
Invention content
The technical problem to be solved by the present invention is to：In order to solve, phytoremediation polycyclic aromatic hydrocarbon pollution efficiency is low to ask
Topic provides a kind of easy to operate, small investment, efficient polycyclic aromatic hydrocarbon pollution restorative procedure, by screening in soil
Polycyclic aromatic hydrocarbon super-absorbent plant variety, and apply soil enrichment agent and soil conditioner, be effectively increased plant to polycyclic virtue
The absorption and degradation of hydrocarbon are realized the reparation to polycyclic aromatic hydrocarbon pollution, are administered by the harvesting of plant.
To solve the above-mentioned problems, the technical solution adopted by the present invention to solve the technical problems is to implement as follows
's：
1. arranging polycyclic aromatic hydrocarbon pollution to be repaired, agricultural crop straw, fallen leaves, brick and stone on soil are cleared up
Equal sundries.
2. dispensing soil enrichment agent and soil conditioner on soil after the cleaning.
3. turn over polycyclic aromatic hydrocarbon pollution to be repaired, the depth turned over be 0.5~1.5 meter, soil enrichment agent with
Soil conditioner is buried in soil.
4. interplanting black nightshade and different types of oily certain herbaceous plants with big flowers on the soil after turning over.
5. experimental analysis determines the initial content of PAHs in soil, oily certain herbaceous plants with big flowers growth different times PAHs in soil
Content, calculate the degradation rate of oily certain herbaceous plants with big flowers growth different times polycyclic aromatic hydrocarbon.According to degradation rate from big to small suitable of polycyclic aromatic hydrocarbon
Sequence arranges, and filters out to the maximum sunflower cultivars of PAHs in soil degradation rate, second year is in polycyclic aromatic hydrocarbon pollution
Plant the maximum sunflower cultivars of degradation rate filtered out.
6. after black nightshade and oily certain herbaceous plants with big flowers maturation, plant is all gathered in, repetition step 1.~4.；Until the polycyclic virtue in soil
Until hydrocarbon content meets requirements of the national standard.
The soil enrichment agent be calcium superphosphate, ammonium bicarbonate, potassium sulfate mixture.
The manufacturing process of the soil conditioner is：
1) agricultural crop straw gathered in, dried；
2) crops stalk crushing, the sieve of 60~120 mesh excessively after drying；
3) agricultural crop straw after screening washed, be put into tube furnace after drying, nitrogen is passed through with the flow of 200ml/min
Gas, heating rate are 10~20 DEG C/min, and the constant temperature time that setting temperature is 400~600 DEG C is 1~3h, is cooled to room later
Temperature obtains agricultural crop straw charcoal；
4) agricultural crop straw charcoal and wormcast, make compost after dry human and animal excreta by volume 1:1:5~10 mixing systems
At soil conditioner.
The invention has the advantages that obtaining the oily certain herbaceous plants with big flowers best to the absorption of polycyclic aromatic hydrocarbon excess, degradation by screening, repair
Polycyclic aromatic hydrocarbon pollution is answered, while part solves processing and the disposal difficulties of agricultural crop straw；The polycyclic virtue of the present invention
Soil contaminated with hydrocarbons restorative procedure is easy to operate, small investment, at low cost, with strong points, safe and reliable.
Specific implementation mode
In order to further disclose the present invention, with reference to specific embodiment, the present invention is described in detail.
Embodiment 1
In order to solve the problems, such as that phytoremediation polycyclic aromatic hydrocarbon pollution efficiency is low, provide a kind of easy to operate, small investment,
Efficient polycyclic aromatic hydrocarbon pollution restorative procedure, the technical solution adopted by the present invention to solve the technical problems are by as follows
What step was implemented：
1. arranging polycyclic aromatic hydrocarbon pollution to be repaired, agricultural crop straw, fallen leaves, brick and stone on soil are cleared up
Equal sundries.
2. dispensing soil enrichment agent and soil conditioner on soil after the cleaning.
3. turning over polycyclic aromatic hydrocarbon pollution to be repaired, the depth turned over is 0.5 meter, and soil enrichment agent and soil are changed
Good dose is buried in soil.
4. interplanting black nightshade and different types of oily certain herbaceous plants with big flowers on the soil after turning over.
5. experimental analysis determines the initial content of PAHs in soil, oily certain herbaceous plants with big flowers growth different times PAHs in soil
Content, calculate the degradation rate of oily certain herbaceous plants with big flowers growth different times polycyclic aromatic hydrocarbon.According to degradation rate from big to small suitable of polycyclic aromatic hydrocarbon
Sequence arranges, and filters out to the maximum sunflower cultivars of PAHs in soil degradation rate, second year is in polycyclic aromatic hydrocarbon pollution
Plant the maximum sunflower cultivars of degradation rate filtered out.
6. after black nightshade and oily certain herbaceous plants with big flowers maturation, plant is all gathered in, repetition step 1.~4.；Until the polycyclic virtue in soil
Until hydrocarbon content meets requirements of the national standard.
The soil enrichment agent be calcium superphosphate, ammonium bicarbonate, potassium sulfate mixture.
The manufacturing process of the soil conditioner is：
1) corn straw harvesting, drying；
2) after drying corn straw smashing, sieve with 100 mesh sieve；
3) maize straw after screening washed, be put into tube furnace after drying, nitrogen is passed through with the flow of 200ml/min
Gas, heating rate are 20 DEG C/min, and the constant temperature time that setting temperature is 400 DEG C is 1h, is cooled to room temperature later, obtains corn stalk
Stalk charcoal；
4) maize straw charcoal and wormcast, make compost after dry human and animal excreta by volume 1:1:5 are mixed and made into soil
Modifying agent.
Embodiment 2
1. arranging polycyclic aromatic hydrocarbon pollution to be repaired, agricultural crop straw, fallen leaves, brick and stone on soil are cleared up
Equal sundries.
2. dispensing soil enrichment agent and soil conditioner on soil after the cleaning.
3. turning over polycyclic aromatic hydrocarbon pollution to be repaired, the depth turned over is 0.8 meter, and soil enrichment agent and soil are changed
Good dose is buried in soil.
4. interplanting black nightshade and different types of oily certain herbaceous plants with big flowers on the soil after turning over.
5. experimental analysis determines the initial content of PAHs in soil, oily certain herbaceous plants with big flowers growth different times PAHs in soil
Content, calculate the degradation rate of oily certain herbaceous plants with big flowers growth different times polycyclic aromatic hydrocarbon.According to degradation rate from big to small suitable of polycyclic aromatic hydrocarbon
Sequence arranges, and filters out to the maximum sunflower cultivars of PAHs in soil degradation rate, second year is in polycyclic aromatic hydrocarbon pollution
Plant the maximum sunflower cultivars of degradation rate filtered out.
6. after black nightshade and oily certain herbaceous plants with big flowers maturation, plant is all gathered in, repetition step 1.~4.；Until the polycyclic virtue in soil
Until hydrocarbon content meets requirements of the national standard.
The soil enrichment agent be calcium superphosphate, ammonium bicarbonate, potassium sulfate mixture.
The manufacturing process of the soil conditioner is：
1) soybean stalk gathered in, dried；
2) soybean stalk after drying crushed, sieved with 100 mesh sieve；
3) soybean stalk after screening washed, be put into tube furnace after drying, nitrogen is passed through with the flow of 200ml/min
Gas, heating rate are 20 DEG C/min, and the constant temperature time that setting temperature is 400 DEG C is 2h, is cooled to room temperature later, obtains big beanstalk
Stalk charcoal；
4) soybean stalk charcoal and wormcast, make compost after dry human and animal excreta by volume 1:1:8 are mixed and made into soil
Modifying agent.
Embodiment 3
1. arranging polycyclic aromatic hydrocarbon pollution to be repaired, agricultural crop straw, fallen leaves, brick and stone on soil are cleared up
Equal sundries.
2. dispensing soil enrichment agent and soil conditioner on soil after the cleaning.
3. turning over polycyclic aromatic hydrocarbon pollution to be repaired, the depth turned over is 1.2 meters, and soil enrichment agent and soil are changed
Good dose is buried in soil.
4. interplanting black nightshade and different types of oily certain herbaceous plants with big flowers on the soil after turning over.
5. experimental analysis determines the initial content of PAHs in soil, oily certain herbaceous plants with big flowers growth different times PAHs in soil
Content, calculate the degradation rate of oily certain herbaceous plants with big flowers growth different times polycyclic aromatic hydrocarbon.According to degradation rate from big to small suitable of polycyclic aromatic hydrocarbon
Sequence arranges, and filters out to the maximum sunflower cultivars of PAHs in soil degradation rate, second year is in polycyclic aromatic hydrocarbon pollution
Plant the maximum sunflower cultivars of degradation rate filtered out.
6. after black nightshade and oily certain herbaceous plants with big flowers maturation, plant is all gathered in, repetition step 1.~4.；Until the polycyclic virtue in soil
Until hydrocarbon content meets requirements of the national standard.
The soil enrichment agent be calcium superphosphate, ammonium bicarbonate, potassium sulfate mixture.
The manufacturing process of the soil conditioner is：
1) cotton stalk harvesting, drying；
2) cotton stalk after drying crushed, sieved with 100 mesh sieve；
3) cotton stalk after screening washed, be put into tube furnace after drying, nitrogen is passed through with the flow of 200ml/min
Gas, heating rate are 20 DEG C/min, and the constant temperature time that setting temperature is 600 DEG C is 2h, is cooled to room temperature later, obtains cotton straw
Stalk charcoal；
4) cotton stalk charcoal and wormcast, make compost after dry human and animal excreta by volume 1:1:10 are mixed and made into soil
Modifying agent.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (1)
1. a kind of restorative procedure of polycyclic aromatic hydrocarbon pollution, it is characterised in that：Implement in accordance with the following steps；
1. arranging polycyclic aromatic hydrocarbon pollution to be repaired, the sundries on soil is cleared up；
2. dispensing soil enrichment agent and soil conditioner on soil after the cleaning；
3. turning over polycyclic aromatic hydrocarbon pollution to be repaired, the depth turned over is 0.5~1.5 meter, soil enrichment agent and soil
Modifying agent is buried in soil；
4. interplanting black nightshade and different types of oily certain herbaceous plants with big flowers on the soil after turning over；
5. experimental analysis determines that the initial content of PAHs in soil, oily certain herbaceous plants with big flowers grow containing for different times PAHs in soil
Amount calculates the degradation rate of oily certain herbaceous plants with big flowers growth different times polycyclic aromatic hydrocarbon；According to polycyclic aromatic hydrocarbon degradation rate from big to small sequence row
Row, filter out to the maximum sunflower cultivars of PAHs in soil degradation rate, second year is planted in polycyclic aromatic hydrocarbon pollution
The maximum sunflower cultivars of degradation rate filtered out；
6. after black nightshade and oily certain herbaceous plants with big flowers maturation, plant is all gathered in, repetition step 1.~4.；Until the polycyclic aromatic hydrocarbon in soil contains
Until amount meets requirements of the national standard；
The soil enrichment agent be calcium superphosphate, ammonium bicarbonate and potassium sulfate mixture；
The manufacturing process of the soil conditioner is：
1) agricultural crop straw gathered in, dried；
2) crops stalk crushing, the sieve of 60~120 mesh excessively after drying；
3) agricultural crop straw after screening washed, be put into tube furnace after drying, nitrogen is passed through with the flow of 200ml/min,
Heating rate is 10~20 DEG C/min, and the constant temperature time that setting temperature is 400~600 DEG C is 1~3h, is cooled to room temperature later,
Obtain agricultural crop straw charcoal；
4) agricultural crop straw charcoal and wormcast, make compost after dry human and animal excreta by volume 1:1:5~10 are mixed and made into soil
Earth modifying agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064655.3A CN108284122A (en) | 2018-01-23 | 2018-01-23 | A kind of restorative procedure of polycyclic aromatic hydrocarbon pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064655.3A CN108284122A (en) | 2018-01-23 | 2018-01-23 | A kind of restorative procedure of polycyclic aromatic hydrocarbon pollution |
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| Publication Number | Publication Date |
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| CN108284122A true CN108284122A (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810064655.3A Pending CN108284122A (en) | 2018-01-23 | 2018-01-23 | A kind of restorative procedure of polycyclic aromatic hydrocarbon pollution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110972832A (en) * | 2019-12-23 | 2020-04-10 | 中国环境科学研究院 | Preparation method for purifying coastal wetland polycyclic aromatic hydrocarbon pollution by suaeda salsa |
Citations (6)
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| CN101503318A (en) * | 2009-03-23 | 2009-08-12 | 中国农业科学院农业资源与农业区划研究所 | Organic and inorganic compound fertilizer |
| CN101992207A (en) * | 2009-08-14 | 2011-03-30 | 中国科学院沈阳应用生态研究所 | Heavy metal-polycyclic aromatic hydrocarbon combined pollution reinforcing repairing agent and application thereof |
| CN103639183A (en) * | 2013-12-20 | 2014-03-19 | 湖南农业大学 | Method for restoring heavy-metal-contaminated soil by utilizing oil sunflower planting |
| CN103664337A (en) * | 2013-11-15 | 2014-03-26 | 青岛天人环境股份有限公司 | Soil culture medium for treating petroleum hydrocarbon pollution |
| CN106862255A (en) * | 2017-04-25 | 2017-06-20 | 常州大学 | A kind of acid soil restorative procedure of zinc lead ore pollution |
| CN107011091A (en) * | 2017-04-17 | 2017-08-04 | 南开大学 | A kind of preparation method of efficient organic fertilizer |
-
2018
- 2018-01-23 CN CN201810064655.3A patent/CN108284122A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503318A (en) * | 2009-03-23 | 2009-08-12 | 中国农业科学院农业资源与农业区划研究所 | Organic and inorganic compound fertilizer |
| CN101992207A (en) * | 2009-08-14 | 2011-03-30 | 中国科学院沈阳应用生态研究所 | Heavy metal-polycyclic aromatic hydrocarbon combined pollution reinforcing repairing agent and application thereof |
| CN103664337A (en) * | 2013-11-15 | 2014-03-26 | 青岛天人环境股份有限公司 | Soil culture medium for treating petroleum hydrocarbon pollution |
| CN103639183A (en) * | 2013-12-20 | 2014-03-19 | 湖南农业大学 | Method for restoring heavy-metal-contaminated soil by utilizing oil sunflower planting |
| CN107011091A (en) * | 2017-04-17 | 2017-08-04 | 南开大学 | A kind of preparation method of efficient organic fertilizer |
| CN106862255A (en) * | 2017-04-25 | 2017-06-20 | 常州大学 | A kind of acid soil restorative procedure of zinc lead ore pollution |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110972832A (en) * | 2019-12-23 | 2020-04-10 | 中国环境科学研究院 | Preparation method for purifying coastal wetland polycyclic aromatic hydrocarbon pollution by suaeda salsa |
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Application publication date: 20180717 |