CN105969362A - Acidified soil heavy metal restoration agent - Google Patents
Acidified soil heavy metal restoration agent Download PDFInfo
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- CN105969362A CN105969362A CN201610153182.5A CN201610153182A CN105969362A CN 105969362 A CN105969362 A CN 105969362A CN 201610153182 A CN201610153182 A CN 201610153182A CN 105969362 A CN105969362 A CN 105969362A
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- soil
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- heavy metal
- charcoal
- fermentation
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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
-
- 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
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
Abstract
The invention discloses an acidified soil heavy metal restoration agent, which is prepared from the following raw materials (by weight): 2-4 parts of quicklime, 2-3 parts of calcium sulfate, 6-9 parts of tobacco slag, 5-7 parts of iron chloride, 10-12 parts of monoammonium carbonate, 34-38 parts of coconut shell powder, 22-25 parts of charcoal, 3-4 parts of potassium sulfate, 88-92 parts of seeded sunflower disc, 24-26 parts of switchgrass branches and leaves, 25-28 parts of kaolin, 4-6 parts of calcium carbonate, 25-27 parts of slash pine needle and a proper amount of water. The soil restoration agent can be used for treating moderately acidified contaminated soil. With the addition of alkaline substances such as quicklime, calcium carbonate and the like, pH value of soil can be increased, and then microbial activities of soil are raised and decomposition of soil organic matter is accelerated. With matching of charcoal for adsorption of heavy metal cations, soil eluviation is decreased and soil fertility is increased. Thus, agriculture and forestry production of acidified soil is rapidly restored, and use value of soil is raised.
Description
Technical field
The present invention relates to technical field of soil remediation, particularly relate to a kind of acidified soil heavy metal renovation agent.
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, the present inventor provides a kind of with heavy metal soil that charcoal is immobilized substrate for acidified soil
Renovation agent, the reparation for soil pollution 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 acidified soil heavy metal is repaired
Agent.
The present invention is achieved by the following technical solutions:
A kind of acidified soil heavy metal renovation agent, is prepared by the raw materials in: quick lime 2-4, sulphuric acid
Calcium 2-3, scarp 6-9, iron chloride 5-7, carbonic acid one ammonium 10-12, coconut palm bran 34-38, Linesless charcoal 22-25, sulfur
Acid potassium 3-4, go seed sunflower plate 88-92, switchgrass branch and leaf 24-26, Kaolin 25-28, calcium carbonate 4-6,
Needle of Slash Pine 25-27, 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 switchgrass branch and leaf will be gone to dry in sun underground, and after pulverizing, mixing is placed in baking oven
In at 50-60 DEG C dry 10-12 hour, gained disintegrating slag is placed in sealed furnace, with the speed of 20 DEG C/min
Degree is warming up to 610-630 DEG C, and is incubated 90-120 minute, is cooled to afterwards when 70-75 DEG C take out, obtains biological
Charcoal；
(2) Kaolin is mixed with calcium carbonate it is placed in calcining furnace, at 640-680 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 55-65mm, take out after irradiating 10-12 hour, obtain modification biological charcoal standby；
(4) putting in fermentation vat by scarp, coconut palm bran, Linesless charcoal mixing, in fermentation 3-4 week, period constantly adds water
Keep fermentation heap water content at 50-60%, to fermentation materials squeeze and filter after having fermented, obtain fermentation solid residual
Slag 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 iron chloride, carbonic acid one ammonium, potassium sulfate, stir and be heated to
It is incubated after 50-60 DEG C, until liquid is evaporated, obtains powder standby；
(6) by charcoal, fermentation solid residue, step 5 gained powder, calcium sulfate, quick lime and surplus
The mixing of excess material 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 can be used for processing the contaminated soil of moderate acidifying, the alkali such as quick lime, calcium carbonate
Property thing interpolation can improve P in soil H-number, and then improve soil microbial activities, accelerate decomposition of soil organic matter,
The adsorption of collocation charcoal base heavy metal cation, reduces soil leaching, reaches culture fertility
Effect, thus quickly recover the agricultural and forestry production of acidified soil, improve the use value of soil.
Detailed description of the invention
A kind of acidified soil heavy metal renovation agent, is made up of the raw material of following weight portion (kg): quick lime 2,
Calcium sulfate 2, scarp 6, iron chloride 5, carbonic acid one ammonium 10, coconut palm bran 34, Linesless charcoal 22, potassium sulfate 3, remove seed
Sunflower plate 88, switchgrass branch and leaf 24, Kaolin 25, calcium carbonate 4, Needle of Slash Pine 25, 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 switchgrass branch and leaf will be gone to dry in sun underground, and after pulverizing, mixing is placed in baking oven
In dry 10 hours at 50 DEG C, gained disintegrating slag is placed in sealed furnace, heats up with the speed of 20 DEG C/min
To 610 DEG C, and it is incubated 90 minutes, is cooled to afterwards when 70 DEG C take out, obtains charcoal；
(2) Kaolin is mixed with calcium carbonate it is placed in calcining furnace, calcine 40 minutes at 640 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 55mm, take out after irradiating 10 hours, obtain modification biological charcoal standby；
(4) scarp, coconut palm bran, Linesless charcoal mixing being put in fermentation vat, ferment 3 weeks, period constantly adds water guarantor
Hold fermentation heap water content 50%, to fermentation materials squeeze and filter after having fermented, obtain fermentation solid residue and send out
Ferment 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 iron chloride, carbonic acid one ammonium, potassium sulfate, stir and be heated to 50 DEG C
Rear insulation, until liquid is evaporated, obtains powder standby；
(6) by charcoal, fermentation solid residue, step 5 gained powder, calcium sulfate, quick lime and surplus
The mixing of excess material 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. an acidified soil heavy metal renovation agent, it is characterized in that, be prepared by the raw materials in: quick lime 2-4, calcium sulfate 2-3, scarp 6-9, iron chloride 5-7, carbonic acid one ammonium 10-12, coconut palm bran 34-38, Linesless charcoal 22-25, potassium sulfate 3-4, go seed sunflower plate 88-92, switchgrass branch and leaf 24-26, Kaolin 25-28, calcium carbonate 4-6, Needle of Slash Pine 25-27, water appropriate.
2. according to the acidified soil heavy metal renovation agent described in claims 1, it is characterised in that specifically comprising the following steps that of preparation method
(1) seed sunflower plate and switchgrass branch and leaf will be gone to dry in sun underground, after pulverizing, mixing is placed in baking oven at 50-60 DEG C drying 10-12 hour, gained disintegrating slag is placed in sealed furnace, it is warming up to 610-630 DEG C with the speed of 20 DEG C/min, and it is incubated 90-120 minute, it is cooled to afterwards when 70-75 DEG C take out, obtains charcoal；
(2) Kaolin is mixed with calcium carbonate it is placed in calcining furnace, calcine 40-60 minute at 640-680 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 55-65mm, take out after irradiating 10-12 hour, obtain modification biological charcoal standby；
(4) putting in fermentation vat by scarp, coconut palm bran, Linesless charcoal 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 iron chloride, carbonic acid one ammonium, potassium sulfate, are 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, calcium sulfate, quick lime 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 |
|---|---|---|---|
| CN201610153182.5A CN105969362A (en) | 2016-03-17 | 2016-03-17 | Acidified soil heavy metal restoration agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153182.5A CN105969362A (en) | 2016-03-17 | 2016-03-17 | Acidified soil heavy metal restoration agent |
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| Publication Number | Publication Date |
|---|---|
| CN105969362A true CN105969362A (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610153182.5A Pending CN105969362A (en) | 2016-03-17 | 2016-03-17 | Acidified soil heavy metal restoration agent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054848A (en) * | 2018-07-06 | 2018-12-21 | 北京润鸣环境科技有限公司 | A kind of heavy-metal contaminated soil renovation agent and preparation method thereof and application method |
| CN110205133A (en) * | 2019-06-17 | 2019-09-06 | 常州大学 | It is a kind of for administer heavy metal Cu pollution compound curing agent and application method |
| CN111909705A (en) * | 2020-07-10 | 2020-11-10 | 广西夏阳环保科技有限公司 | Acidic heavy metal composite soil remediation agent and using method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330475A (en) * | 2015-10-30 | 2016-02-17 | 马鞍山市心洲葡萄专业合作社 | Acidified soil restoration fertilizer |
-
2016
- 2016-03-17 CN CN201610153182.5A patent/CN105969362A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330475A (en) * | 2015-10-30 | 2016-02-17 | 马鞍山市心洲葡萄专业合作社 | Acidified soil restoration 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（电子期刊）工程科技Ⅰ辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054848A (en) * | 2018-07-06 | 2018-12-21 | 北京润鸣环境科技有限公司 | A kind of heavy-metal contaminated soil renovation agent and preparation method thereof and application method |
| CN110205133A (en) * | 2019-06-17 | 2019-09-06 | 常州大学 | It is a kind of for administer heavy metal Cu pollution compound curing agent and application method |
| CN111909705A (en) * | 2020-07-10 | 2020-11-10 | 广西夏阳环保科技有限公司 | Acidic heavy metal composite soil remediation agent and using method thereof |
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Application publication date: 20160928 |
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