CN105964672A - Environmental friendly soil heavy metal restoration agent - Google Patents
Environmental friendly soil heavy metal restoration agent Download PDFInfo
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- CN105964672A CN105964672A CN201610153136.5A CN201610153136A CN105964672A CN 105964672 A CN105964672 A CN 105964672A CN 201610153136 A CN201610153136 A CN 201610153136A CN 105964672 A CN105964672 A CN 105964672A
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- soil
- heavy metal
- fermentation
- charcoal
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Classifications
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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
- B09C1/08—Reclamation of contaminated soil chemically
Abstract
The invention discloses an environmental friendly soil heavy metal restoration agent, which is prepared from the following raw materials (by weight): 1-2 parts of urea phosphate, 4-5 parts of alginic acid, 46-48 parts of corncob, 4-5 parts of chitin, 8-9 parts of biochemical fulvic acid, 8-9 parts of borax, 2-3 parts of ammonium molybdate, 75-80 parts of seeded sunflower disc, 40-44 parts of enteromorpha prolifera, 10-14 parts of kaolin, 18-20 parts of calcium carbonate, 25-28 parts of slash pine needle and a proper amount of water. According to the soil restoration agent, organic matter is used as main raw materials, and no chemical agents are used so as to guarantee that there is no adverse effect on the soil environment. During the preparation process, possibilities of secondary pollution are avoided during high temperature and fermentation. Thus, the restoration agent treats soil heavy metal pollution while soil is cultivated. The restoration agent has no destructive effect on biological characteristics of soil, has economic and environmental benefits, and is suitable for commercialized production.
Description
Technical field
The present invention relates to technical field of soil remediation, particularly relate to a kind of environmentally friendly heavy metal-polluted soil reparation
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, 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 environmentally friendly heavy metal-polluted soil
Renovation agent.
The present invention is achieved by the following technical solutions:
A kind of environmentally friendly heavy metal-polluted soil renovation agent, is prepared by the raw materials in: urea phosphate 1-2,
Alginic acid 4-5, corn cob 46-48, chitin 4-5, biochemical fulvic acid 8-9, Borax 8-9, ammonium molybdate 2-3,
Remove seed sunflower plate 75-80, Entermorpha 40-44, Kaolin 10-14, calcium carbonate 18-20, Needle of Slash Pine
25-28, 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 Entermorpha will be gone to dry in sun underground, and after pulverizing, mixing is placed in baking oven
Dry 10-12 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 490-510 DEG C, and it is incubated 90-120 minute, is cooled to afterwards when 60-70 DEG C take out, obtains charcoal；
(2) Kaolin is mixed with calcium carbonate it is placed in calcining furnace, at 520-560 DEG C, calcine 80-100
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 18-20 hour, obtain modification biological charcoal standby；
(4) biochemical fulvic acid, alginic acid, corn cob mixing are put in fermentation vat, fermentation 3-4 week, the phase
Between constantly add water holding fermentation heap water content at 50-60%, to fermentation materials squeeze and filter after ferment, must
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 Borax, urea phosphate, ammonium molybdate, stir and be heated to 50-60 DEG C
Rear insulation, until liquid is evaporated, obtains powder standby；
(6) charcoal, fermentation solid residue, step 5 gained powder, chitin 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, with Organic substance as primary raw material, does not use chemicals, to ensure soil
Environment has no adverse effects, and in preparation process, the process such as high temperature, fermentation turn avoid possibility secondary pollution occur,
Make renovation agent administer soil of fostering and apply fertilizer while heavy metal pollution of soil, to geobiont character without destructiveness, rise
To economy and the dual income of environment, it is adaptable to commercially produce.
Detailed description of the invention
A kind of environmentally friendly heavy metal-polluted soil renovation agent, is made up of the raw material of following weight portion (kg): phosphoric acid
Urea 1, alginic acid 4, corn cob 46, chitin 4, biochemical fulvic acid 8, Borax 8, ammonium molybdate 2, remove seed
Sunflower plate 75, Entermorpha 40, Kaolin 10, calcium carbonate 18, 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 Entermorpha will be gone to dry in sun underground, and after pulverizing, mixing is placed in baking oven
Dry 10 hours at 50 DEG C, gained disintegrating slag is placed in sealed furnace, is warming up to the speed of 20 DEG C/min
490 DEG C, and it is incubated 90 minutes, it is cooled to afterwards when 60 DEG C take out, obtains charcoal；
(2) Kaolin is mixed with calcium carbonate it is placed in calcining furnace, calcine 80 minutes at 520 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 18 hours, obtain modification biological charcoal standby；
(4) biochemical fulvic acid, alginic acid, corn cob mixing are put in fermentation vat, ferment 3 weeks, period
The holding fermentation heap water content that constantly adds water is 50%, to fermentation materials squeeze and filter after having fermented, must ferment solid
Body 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 Borax, urea phosphate, ammonium molybdate, after stirring and being heated to 50 DEG C
Insulation, until liquid is evaporated, obtains powder standby；
(6) charcoal, fermentation solid residue, step 5 gained powder, chitin 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. an environmentally friendly heavy metal-polluted soil renovation agent, it is characterized in that, be prepared by the raw materials in: urea phosphate 1-2, alginic acid 4-5, corn cob 46-48, chitin 4-5, biochemical fulvic acid 8-9, Borax 8-9, ammonium molybdate 2-3, go seed sunflower plate 75-80, Entermorpha 40-44, Kaolin 10-14, calcium carbonate 18-20, Needle of Slash Pine 25-28, water appropriate.
2. according to the environmentally friendly heavy metal-polluted soil 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 Entermorpha 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 490-510 DEG C with the speed of 20 DEG C/min, and it is incubated 90-120 minute, it is cooled to afterwards when 60-70 DEG C take out, obtains charcoal；
(2) Kaolin is mixed with calcium carbonate it is placed in calcining furnace, calcine 80-100 minute at 520-560 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 18-20 hour, obtain modification biological charcoal standby；
(4) putting in fermentation vat by biochemical fulvic acid, alginic acid, corn cob 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 Borax, urea phosphate, ammonium molybdate, 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, chitin 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 |
|---|---|---|---|
| CN201610153136.5A CN105964672A (en) | 2016-03-17 | 2016-03-17 | Environmental friendly soil heavy metal restoration agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610153136.5A CN105964672A (en) | 2016-03-17 | 2016-03-17 | Environmental friendly soil heavy metal restoration agent |
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| CN201610153136.5A Pending CN105964672A (en) | 2016-03-17 | 2016-03-17 | Environmental friendly soil heavy metal restoration agent |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966780A (en) * | 2017-02-28 | 2017-07-21 | 嵊州市派特普科技开发有限公司 | A kind of soil conditioner and preparation method thereof |
| CN107649503A (en) * | 2017-10-19 | 2018-02-02 | 杨清辉 | Soil is passivated curing in a kind of road and bridge engineering |
| CN107903909A (en) * | 2017-11-15 | 2018-04-13 | 河南永泽环境科技有限公司 | A kind of soil-repairing agent and preparation method thereof |
| CN108865152A (en) * | 2018-04-04 | 2018-11-23 | 史国民 | A kind of preparation method of contaminated soil remediation material |
| CN111151567A (en) * | 2019-12-31 | 2020-05-15 | 大连原野景观园林工程有限公司 | Method for improving soil aggregate structure by ecologically utilizing garden waste |
| CN114029336A (en) * | 2021-12-07 | 2022-02-11 | 浙江水利水电学院 | Soil remediation material and remediation method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966780A (en) * | 2017-02-28 | 2017-07-21 | 嵊州市派特普科技开发有限公司 | A kind of soil conditioner and preparation method thereof |
| CN107649503A (en) * | 2017-10-19 | 2018-02-02 | 杨清辉 | Soil is passivated curing in a kind of road and bridge engineering |
| CN110918626A (en) * | 2017-10-19 | 2020-03-27 | 杨清辉 | Soil passivation and solidification method in road and bridge engineering |
| CN107903909A (en) * | 2017-11-15 | 2018-04-13 | 河南永泽环境科技有限公司 | A kind of soil-repairing agent and preparation method thereof |
| CN108865152A (en) * | 2018-04-04 | 2018-11-23 | 史国民 | A kind of preparation method of contaminated soil remediation material |
| CN111151567A (en) * | 2019-12-31 | 2020-05-15 | 大连原野景观园林工程有限公司 | Method for improving soil aggregate structure by ecologically utilizing garden waste |
| CN114029336A (en) * | 2021-12-07 | 2022-02-11 | 浙江水利水电学院 | Soil remediation material and remediation method |
| CN114029336B (en) * | 2021-12-07 | 2023-01-10 | 浙江水利水电学院 | Soil remediation material and remediation method |
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Application publication date: 20160928 |