CN105969387A - Selenium-containing soil heavy metal restoration agent - Google Patents
Selenium-containing soil heavy metal restoration agent Download PDFInfo
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- CN105969387A CN105969387A CN201610153123.8A CN201610153123A CN105969387A CN 105969387 A CN105969387 A CN 105969387A CN 201610153123 A CN201610153123 A CN 201610153123A CN 105969387 A CN105969387 A CN 105969387A
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- 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
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a selenium-containing soil heavy metal restoration agent, which is prepared from the following raw materials (by weight): 4-5 parts of lentinan, 2-3 parts of sodium selenite, 4-6 parts of chitosan, 16-18 parts of pasture powder, 8-10 parts of pig bone meal, 25-26 parts of vinegar residue, 6-7 parts of potassium nitrate, 82-88 parts of seeded sunflower disc, 32-36 parts of silkworm excrement, 15-18 parts of kaolin, 4-5 parts of calcium carbonate, 27-28 parts of slash pine needle and a proper amount of water. By using sodium selenite as exogenous selenium and by matching of lentinan, chitosan and the like, activity of urease and sucrose in soil can be increased, and the effect of increasing organic fertility of soil is further achieved. Meanwhile, with the addition of selenium, content of organically-bound heavy metal in soil is also decreased, soil immobilization effect of heavy metal especially mercury is enhanced, and bio-availability of soil heavy metal is further reduced. The product is used for restoration and improvement of soil quality.
Description
Technical field
The present invention relates to technical field of soil remediation, particularly relate to a kind of heavy metal-polluted soil renovation agent containing selenium.
Background technology
The source of China's heavy metal pollution mainly includes Industrial " three Waste " discharge, house refuse is oozed out, family fires
Coal and motor vehicle exhaust emission etc..The industries such as plating, plastics, chemical industry, mineral smelting processing are heavy metals
Key industry is originated, and coal-fired release is also one of major reason of heavy metal pollution of soil, and motor-vehicle tail-gas also may be used
Significantly cause the heavy metal pollution of roadside soil.In domestic waste, part contents of heavy metal elements surpasses
Mark, long-term stacking also can make heavy metal leak in soil, causes regional soil local content of beary metal to increase.
In addition the long-term unreasonable use such as chemical fertilizer, pesticide, muck also results in heavy metal pollution of soil.
The coercing of heavy metal can cause lacking and the reduction of activity of macronutrient in plant, and heavy metal is dense
Suppression plant is had to the absorption of the mineral element such as calcium, magnesium and turn-over capacity when spending higher.Heavy metal element easily with
Sulfydryl in the active part of enzyme combines, the effect of the indispensable element in generation metallic element replacement sulfur albumen, example
Essential elements as biological in Mg2+, Ca2+ etc., for want of causes the activity of antioxidase to reduce and even lost efficacy,
Antioxidant system in families of plant is done great damage.
The recovery technique of heavy metal contaminated soil mainly uses chemical means at present, but makes in repair process
A large amount of chemical agents easily cause the recontamination of soil.Charcoal has good absorption property, chemical
Matter is stable, it is possible to reduce the biological effectiveness of heavy metal in soil, can improve crop yield simultaneously, and former
Material is extensive, low cost so that it is have clear superiority and using value in the soil administering heavy metal pollution.
To this end, current inventor provides a kind of with the heavy metal soil-repairing agent that charcoal is immobilized substrate, for soil
The reparation that earth pollutes provides a kind of effective way.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of heavy metal-polluted soil reparation containing selenium
Agent.
The present invention is achieved by the following technical solutions:
A kind of heavy metal-polluted soil renovation agent containing selenium, is prepared by the raw materials in: lentinan 4-5,
Sodium selenite 2-3, chitosan 4-6, herbage end 16-18, Os Sus domestica powder 8-10, vinegar 25-26, potassium nitrate
6-7, remove seed sunflower plate 82-88, Bombyx mori L. 32-36, Kaolin 15-18, calcium carbonate 4-5, wetland Folium Pini
Leaf 27-28, water are appropriate.
Specifically comprising the following steps that of the preparation of described heavy metal-polluted soil renovation agent
(1) seed sunflower plate and Bombyx mori L. will be gone to dry in sun underground, and after pulverizing, mixing is placed in baking oven
Dry 11-13 hour at 50-60 DEG C, gained disintegrating slag is placed in sealed furnace, heat up with the speed of 20 DEG C/min
To 500-550 DEG C, and it is incubated 80-100 minute, is cooled to afterwards when 68-72 DEG C take out, obtains charcoal；
(2) Kaolin is mixed with calcium carbonate it is placed in calcining furnace, at 600-650 DEG C, calcine 40-60
Minute, take out after being cooled to room temperature, obtain calcined powder standby；
(3) step 1 gained charcoal and step 2 gained calcined powder are mixed, be laid in peak value 253.7nm
Low-pressure mercury gas lamp immediately below at 53-57mm, take out after irradiating 14-16 hour, obtain modification biological charcoal standby；
(4) herbage end, Os Sus domestica powder, lentinan, vinegar mixing are put in fermentation vat, fermentation 3-4 week,
Period constantly add water holding fermentation heap water content at 50-60%, to fermentation materials squeeze and filter after having fermented,
Obtain fermentation solid residue and fermentation liquid；
(5) pull an oar after Needle of Slash Pine being mixed by weight 1:2 with water, and obtain serosity by filtered through gauze,
Serosity and fermentation liquid are mixed and added into potassium nitrate, sodium selenite, protect after stirring and being heated to 50-60 DEG C
Temperature, until liquid is evaporated, obtains powder standby；
(6) charcoal, fermentation solid residue, step 5 gained powder, chitosan and leftover materials are mixed
Conjunction is placed in comminutor, makes spheroidal particle, obtains heavy metal renovation agent of the present invention.
The using method of the present invention for renovation agent being embedded at upper soll layer 10-20cm after contaminated soil is turned over,
Every mu of soil uses 100-120kg renovation agent.
The invention have the advantage that
Kaolin coordinates the modified calcining of calcium carbonate to improve the shock-absorbing capacity of soil, adds soil heavy metal
Tolerance, improve activeness and the plant availability of heavy metal in soil.
Charcoal and calcined kaolin mixed radiation, both eliminated the superincumbent all kinds of miscellaneous bacterias of attachment, it is to avoid secondary
Pollute, can be formed on charcoal surface simultaneously favourable surface then such as-OH ,-COO ,-CO ,-COOH etc.
Hydrophilic atomic group, improves the unit are adsorbance of charcoal, shows more on the sticking to pollutant
High surface adsorption efficiency.
The leaf juice energy activating soil heavy metal of highly acidity in pinus elliottii, chelating moiety heavy metal utilizes for plant, then
Adsorb residual gravity metal by charcoal, reach the reparation purpose of heavy metal-polluted soil.
The soil-repairing agent of the present invention as the interpolation of external source selenium, coordinates lentinan, shell to gather by sodium selenite
Sugar etc. can increase the activity of urase in soil, saccharase, and then reaches to increase the effect of soil organic fertilizer power,
The interpolation of selenium simultaneously also reduces the content organically combining state heavy metal in soil, enhances soil heavy metal outstanding
It is the fixed effect of hydrargyrum, and then reduces the biological effectiveness of heavy metal-polluted soil, soil quality is carried out reparation and changes
Good.
Detailed description of the invention
A kind of heavy metal-polluted soil renovation agent containing selenium, is made up of the raw material of following weight portion (kg): lentinan
4, sodium selenite 2, chitosan 4, herbage end 16, Os Sus domestica powder 8, vinegar 25, potassium nitrate 6, go seed to day
Certain herbaceous plants with big flowers dish 82, Bombyx mori L. 32, Kaolin 15, calcium carbonate 4, Needle of Slash Pine 27, water are appropriate.
Specifically comprising the following steps that of the preparation of described heavy metal-polluted soil renovation agent
(1) seed sunflower plate and Bombyx mori L. will be gone to dry in sun underground, and after pulverizing, mixing is placed in baking oven
Dry 11 hours at 50 DEG C, gained disintegrating slag is placed in sealed furnace, is warming up to the speed of 20 DEG C/min
500 DEG C, and it is incubated 80 minutes, it is cooled to afterwards when 68 DEG C take out, obtains charcoal；
(2) Kaolin is mixed with calcium carbonate it is placed in calcining furnace, calcine 40 minutes at 600 DEG C, cold
But take out to room temperature, obtain calcined powder standby；
(3) step 1 gained charcoal and step 2 gained calcined powder are mixed, be laid in peak value 253.7nm
Low-pressure mercury gas lamp immediately below at 53mm, take out after irradiating 14 hours, obtain modification biological charcoal standby；
(4) herbage end, Os Sus domestica powder, lentinan, vinegar mixing are put in fermentation vat, ferment 3 weeks,
Period constantly adds water and keeps fermentation heap water content 50%, to fermentation materials squeeze and filter after having fermented, must send out
Ferment solid residue and fermentation liquid；
(5) pull an oar after Needle of Slash Pine being mixed by weight 1:2 with water, and obtain serosity by filtered through gauze,
Serosity and fermentation liquid are mixed and added into potassium nitrate, sodium selenite, are incubated after stirring and being heated to 50 DEG C,
Until liquid is evaporated, obtain powder standby；
(6) charcoal, fermentation solid residue, step 5 gained powder, chitosan and leftover materials are mixed
Conjunction is placed in comminutor, makes spheroidal particle, obtains heavy metal renovation agent of the present invention.
In order to further illustrate the using value of the present invention, inventor chooses one piece of heavy-metal contaminated soil and uses
Renovation agent of the present invention carries out the checking of repairing effect, in soil, apply renovation agent 60 days, after 180 days point
Other soil sampling carries out content of beary metal and measures and the detection of soil physico-chemical property, and data are as follows:
By data above it can be seen that after employing soil-repairing agent of the present invention, in soil, various heavy content is obvious
Reducing, in soil, organic carbon level and Cation Exchange Capacity in Soils are all improved simultaneously, and soil of the present invention is described
Heavy metal renovation agent has significant improved effect to soil.
Claims (2)
1. the heavy metal-polluted soil renovation agent containing selenium, it is characterized in that, be prepared by the raw materials in: lentinan 4-5, sodium selenite 2-3, chitosan 4-6, herbage end 16-18, Os Sus domestica powder 8-10, vinegar 25-26, potassium nitrate 6-7, go seed sunflower plate 82-88, Bombyx mori L. 32-36, Kaolin 15-18, calcium carbonate 4-5, Needle of Slash Pine 27-28, water appropriate.
2. according to the heavy metal-polluted soil renovation agent containing selenium described in claims 1, it is characterised in that specifically comprising the following steps that of preparation method
(1) seed sunflower plate and Bombyx mori L. will be gone to dry in sun underground, after pulverizing, mixing is placed in baking oven at 50-60 DEG C drying 11-13 hour, gained disintegrating slag is placed in sealed furnace, it is warming up to 500-550 DEG C with the speed of 20 DEG C/min, and it is incubated 80-100 minute, it is cooled to afterwards when 68-72 DEG C take out, obtains charcoal；
(2) Kaolin is mixed with calcium carbonate it is placed in calcining furnace, calcine 40-60 minute at 600-650 DEG C, take out after being cooled to room temperature, obtain calcined powder standby；
(3) step 1 gained charcoal and step 2 gained calcined powder are mixed, be laid in immediately below the low-pressure mercury gas lamp of peak value 253.7nm at 53-57mm, take out after irradiating 14-16 hour, obtain modification biological charcoal standby；
(4) putting in fermentation vat by herbage end, Os Sus domestica powder, lentinan, vinegar mixing, in fermentation 3-4 week, period constantly adds water and keeps fermentation heap water content at 50-60%, to fermentation materials squeeze and filter after having fermented, obtains fermentation solid residue and fermentation liquid；
(5) pull an oar after Needle of Slash Pine being mixed by weight 1:2 with water, and obtain serosity by filtered through gauze, serosity and fermentation liquid are mixed and added into potassium nitrate, sodium selenite, be incubated after stirring and being heated to 50-60 DEG C, until liquid is evaporated, obtain powder standby；
(6) mixing of charcoal, fermentation solid residue, step 5 gained powder, chitosan and leftover materials is placed in comminutor, makes spheroidal particle, obtain heavy metal renovation agent of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153123.8A CN105969387A (en) | 2016-03-17 | 2016-03-17 | Selenium-containing soil heavy metal restoration agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153123.8A CN105969387A (en) | 2016-03-17 | 2016-03-17 | Selenium-containing soil heavy metal restoration agent |
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| CN105969387A true CN105969387A (en) | 2016-09-28 |
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| CN201610153123.8A Pending CN105969387A (en) | 2016-03-17 | 2016-03-17 | Selenium-containing soil heavy metal restoration agent |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978184A (en) * | 2017-04-14 | 2017-07-25 | 东南大学 | Curing agent and methods for making and using same for Compound Heavy Metals soil |
| CN108236933A (en) * | 2016-12-27 | 2018-07-03 | 北京林业大学 | It is a kind of to remove sorbing material of organically combine state heavy metal ion and preparation method thereof in water removal |
| CN108453127A (en) * | 2017-02-20 | 2018-08-28 | 中国科学院沈阳应用生态研究所 | A method of strengthening renovation agent using active matter in enriching plant and its utilizes reinforcing renovation agent heavy metal soil |
| CN108456526A (en) * | 2017-02-20 | 2018-08-28 | 中国科学院沈阳应用生态研究所 | A method of renovation agent restoration of soil polluted by heavy metal is strengthened using the reinforcing renovation agent and its utilization of super enriching plant black nightshade |
| CN108453126A (en) * | 2017-02-20 | 2018-08-28 | 中国科学院沈阳应用生态研究所 | A kind of method for strengthening renovation agent and its promote phytoremediation cadmium pollution soil using reinforcing renovation agent of cadmium pollution soil |
| CN109719123A (en) * | 2019-02-14 | 2019-05-07 | 中国科学院地球化学研究所 | A method of rice enrichment inorganic mercury and methyl mercury are reduced using sodium selenite modification biological charcoal |
| CN112852430A (en) * | 2021-01-07 | 2021-05-28 | 中南大学 | Passivator for repairing mercury contaminated soil and preparation method and application thereof |
| CN113174268A (en) * | 2021-05-06 | 2021-07-27 | 浙江工业大学 | Selenium-rich excess sludge remediation liquid for remedying soil mercury pollution and method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330476A (en) * | 2015-10-30 | 2016-02-17 | 马鞍山市心洲葡萄专业合作社 | Red mud-assisted soil remediation fertilizer |
-
2016
- 2016-03-17 CN CN201610153123.8A patent/CN105969387A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330476A (en) * | 2015-10-30 | 2016-02-17 | 马鞍山市心洲葡萄专业合作社 | Red mud-assisted soil remediation fertilizer |
Non-Patent Citations (3)
| Title |
|---|
| 何连生等: "《重金属污染调查与治理技术》", 31 December 2013, 中国环境出版社 * |
| 周建利等: ""活化土壤重金属天然植物螯合剂的筛选"", 《生态学报》 * |
| 陈健康: ""紫外辐射改性碳材料对水中重金属的吸附研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108236933A (en) * | 2016-12-27 | 2018-07-03 | 北京林业大学 | It is a kind of to remove sorbing material of organically combine state heavy metal ion and preparation method thereof in water removal |
| CN108453127A (en) * | 2017-02-20 | 2018-08-28 | 中国科学院沈阳应用生态研究所 | A method of strengthening renovation agent using active matter in enriching plant and its utilizes reinforcing renovation agent heavy metal soil |
| CN108456526A (en) * | 2017-02-20 | 2018-08-28 | 中国科学院沈阳应用生态研究所 | A method of renovation agent restoration of soil polluted by heavy metal is strengthened using the reinforcing renovation agent and its utilization of super enriching plant black nightshade |
| CN108453126A (en) * | 2017-02-20 | 2018-08-28 | 中国科学院沈阳应用生态研究所 | A kind of method for strengthening renovation agent and its promote phytoremediation cadmium pollution soil using reinforcing renovation agent of cadmium pollution soil |
| CN106978184A (en) * | 2017-04-14 | 2017-07-25 | 东南大学 | Curing agent and methods for making and using same for Compound Heavy Metals soil |
| CN106978184B (en) * | 2017-04-14 | 2020-09-11 | 东南大学 | Curing agent for composite heavy metal polluted soil and preparation and application methods thereof |
| CN109719123A (en) * | 2019-02-14 | 2019-05-07 | 中国科学院地球化学研究所 | A method of rice enrichment inorganic mercury and methyl mercury are reduced using sodium selenite modification biological charcoal |
| CN112852430A (en) * | 2021-01-07 | 2021-05-28 | 中南大学 | Passivator for repairing mercury contaminated soil and preparation method and application thereof |
| CN113174268A (en) * | 2021-05-06 | 2021-07-27 | 浙江工业大学 | Selenium-rich excess sludge remediation liquid for remedying soil mercury pollution and method thereof |
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Application publication date: 20160928 |
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