CN108863679A - A kind of iron tailings soil organism modifying agent and its application - Google Patents
A kind of iron tailings soil organism modifying agent and its application Download PDFInfo
- Publication number
- CN108863679A CN108863679A CN201811102390.8A CN201811102390A CN108863679A CN 108863679 A CN108863679 A CN 108863679A CN 201811102390 A CN201811102390 A CN 201811102390A CN 108863679 A CN108863679 A CN 108863679A
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- iron tailings
- modifying agent
- soil organism
- soil
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Soil Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a kind of iron tailings soil organism modification method and its applications, it is made of the raw material of following parts by weight：1~2 part of charcoal, 0.2~0.5 part of organic fertilizer, 0.2~0.5 part of rice husk.Modifying agent of the invention is subjected to greening of reclaiming for turning over iron tailings with the applied amount of 1.6~2.9 tons/hectare.Modifying agent of the invention has the characteristics that feed preparation process is simple, raw material is sufficient, low in cost, application effect is obvious, the soil organism and its physicochemical property can effectively be improved, the pollutants such as the heavy metal in soil can also be adsorbed, it is this method simple process, easy to implement, pollution-free, it is suitable for popularization and application.
Description
Technical field
The invention belongs to environmental protection technical field, in particular to a kind of iron tailings soil organism modifying agent and its answer
With.
Background technique
Still based on being stacked in Tailings Dam, this, which means that, needs to occupy a large amount of soils for the processing of China's tailing.And
And while occupying a large amount of soils, valuable constituent can be also lost, or even security threat is caused to social environment.Tailing it is a large amount of
Accumulation destroys local ecological environment, and the partial size of tailing is smaller in addition, long-term stacking will appear and meet water penetration, to the wind
The phenomenon that flying upward not only influences the normal life of nearby residents, causes underground water pollution, and the grain that floats in the air increases, and reduces
Neighbouring farmland fertility.If being dropped on building with one piece of rain, it may result in building surface and corroded, for name Shenggu
The destructive power of mark can not be ignored.And Tailings Dam can cause serious casualties and damage to property if dam break.
Rational utilization is no more than for the improvement of tailing.Iron tailings is used to production construction material at present and production is former
Material, backfilling goaf domain, ferro element and the recycling of other valuable elements etc., but comprehensive utilization ratio is too low, can not effectively solve tail
Mine accumulates problem.The too low reason of comprehensive utilization ratio is also jejune technology at present, so if can by Tailings Dam with compared with
Good mode seals up, so that it may will exploit as a kind of potential resource.And this method is exactly soilization benefit
With, that is, so that the iron tailings that not even a blade of grass grows is suitble to plant growth by ameliorative measure, so that it may and it solves ore in sand form and flies upward, water
Soil flow is lost, the environment, safety problem such as river blocking.Existing frequently-used method is covering soil moved in improve the original, but the method again excavates soil moved in improve the original
Area causes new environmental problem.
It is desirable to study the method for improving the iron tailings soil organism, utilize iron tailings soilization safely and effectively, this
Inventor has found a kind of iron tailings soil organism modifying agent by a large number of experiments, and it is organic that application can effectively improve soil
The pollutants such as the heavy metal in matter and other physicochemical properties and absorption soil.
Summary of the invention
It is an object of the invention to deficiency in view of the prior art, provide and modification method.
To achieve the above object, the technical solution adopted by the present invention is as follows：
According to iron tailings soil organism modifying agent of the present invention, which is characterized in that it is by following parts by weight
Raw material composition：
1~2 part of charcoal, 0.2~0.5 part of organic fertilizer, 0.2~0.5 part of rice husk.
According to iron tailings soil organism modifying agent of the present invention, which is characterized in that the charcoal is agricultural
Waste pyrolysis charring under 450~650 DEG C of anoxia conditions, then after pulverizer is ground, cross the life that the sieve of aperture 1mm obtains
Object charcoal.
According to iron tailings soil organism modifying agent of the present invention, which is characterized in that the agricultural wastes are agriculture
The mixture of one or more of crop material, cotton bavin, sawdust, rice husk and animal wastes.
According to iron tailings soil organism modifying agent of the present invention, which is characterized in that the organic fertilizer be according to
Weight percent, by the ratio of the freshly-slaughtered poultry excrement 45~55% of water content 50~0%, greenfeed 25~35% and bran chaff 15~25%
It is uniformly mixed, then sealed fermenting 45~60 days are made.
According to the purposes of iron tailings soil organism modifying agent of the present invention, which is characterized in that by modifying agent with 1.6
The applied amount of~2.9 tons/hectare carries out greening of reclaiming for turning over iron tailings.
According to the purposes of iron tailings soil organism modifying agent of the present invention, which is characterized in that be applied to iron tailings
Ploughed depth is 20~40cm when middle.
The rice husk is obtained by paddy decladding.
The characteristics of iron tailings soil organism modifying agent of the present invention：
1, modifying agent preparation process of the invention is simple, easy to implement, and pollution-free, raw material sources are extensive, cheap, raw
It produces at low cost.
2, for improved materials applied in the present invention based on charcoal, charcoal refers to that biomass carries out under anoxic conditions
It is rich in carbonaceous, and property stabilization of solid product made of high temperature pyrolysis, while there is organic carbon content height, large specific surface area, mine
Object constituent content is abundant, high charge density, absorption property and ion-exchange performance powerful feature, wherein the carbonaceous being rich in can be effective
The carbon structure for improving tailing soil, not only increases total carbon, the organic matter carbon content in soil can also be effectively increased, in addition having
The synergistic effect of machine fertilizer and rice husk is obviously improved the tailing content of organic matter.
3, the present invention used in material belong to agriculture forest and husbandry waste, realize solid waste " minimizing,
It is recycling, innoxious " comprehensive utilization, be one and meet the practical technique that circular economy concept has both practical application value.
4, this method application easy to spread, use process save labor, easy to spread to be applied to other kinds of Tailings Dam,
There is application value.
Specific embodiment
Following embodiment is only used for that the present invention is explained, and is not construed as limiting the scope of the claims restriction,
Other alternative means that those skilled in the art are contemplated that according to description, should all be in the protection of the claims in the present invention
Within the scope of.
Embodiment 1
A kind of iron tailings soil organism modifying agent：
Charcoal, organic fertilizer are uniformly mixed with the proportion of rice husk by weight 1: 0.3: 0.3.
Wherein the charcoal is agricultural wastes pyrolysis charring under 450~650 DEG C of anoxia conditions, then through pulverizer
The sieve that aperture 1mm is crossed after grinding, is made；
The agricultural wastes are the mixed of one or more of agricultural crop straw, cotton bavin, sawdust, rice husk and animal wastes
Close object；
The organic fertilizer is to add freshly-slaughtered poultry excrement water process to water content 70%, then press chicken manure 50%, greenfeed 30%, bran
The ratio of chaff 20% is fermented 60 days, is made；
The rice husk is obtained by paddy decladding.
The application of iron tailings soil organism modifying agent：
Modifying agent is applied into iron tailings according to the amount of 1.6 tons/hectare, and is turned over, ploughed depth 30cm.
Using result：
Former iron tailings content of organic matter 1.15g/kg, after applying 1 modifying agent of embodiment, the content of organic matter of iron tailings is promoted
To 6.23g/kg, low fertility soil standard is promoted to by lean soil, significant effect is promoted, meets the arable layer content of organic matter most
Substandard is horizontal.
Embodiment 2
A kind of iron tailings soil organism modifying agent：
Organic fertilizer is to add water process to water content 60% in freshly-slaughtered poultry excrement, remaining step is the same as embodiment 1.
The application of iron tailings soil organism modifying agent：
Modifying agent is applied into iron tailings according to the amount of 2.3 tons/hectare, and is turned over, ploughed depth 30cm.
Using result：
Former iron tailings content of organic matter 1.15g/kg, after applying 1 modifying agent of embodiment, the content of organic matter of iron tailings is promoted
To 8.25g/kg, low fertility soil standard is promoted to by lean soil, significant effect is promoted, meets arable layer content of organic matter mark
It is quasi- horizontal.
Embodiment 3
A kind of iron tailings soil organism modifying agent：
Organic fertilizer is to add water process to water content 50% in freshly-slaughtered poultry excrement, remaining step is the same as embodiment 1.
The application of iron tailings soil organism modifying agent：
Modifying agent is applied into iron tailings according to the amount of 2.9 tons/hectare, and is turned over, ploughed depth 30cm.
Using result：
Former iron tailings content of organic matter 1.15g/kg, after applying 1 modifying agent of embodiment, the content of organic matter of iron tailings is promoted
To 12.16g/kg, low fertility soil standard is promoted to by lean soil, significant effect is promoted, meets the arable layer content of organic matter
Standard level.
Comparative example 1
Using the charcoal in embodiment 3 as modifying agent, applied in iron tailings according to the amount of 2.9 tons/hectare, and
It is turned over, ploughed depth 30cm.
Using result：
Former iron tailings content of organic matter 1.15g/kg, after applying 1 modifying agent of comparative example, the content of organic matter of iron tailings is promoted
To the content of 7.52g/kg, low fertility soil standard level is promoted to by lean soil.
Comparative example 2
Using the organic fertilizer in embodiment 3 as modifying agent, described in organic fertilizer be to add freshly-slaughtered poultry excrement water process to aqueous
Amount 50% is applied into iron tailings according to the amount of 2.9 tons/hectare, and is turned over, ploughed depth 30cm.
Using result：
Former iron tailings content of organic matter 1.15g/kg, after applying 2 modifying agent of comparative example, the content of organic matter of iron tailings is promoted
To the content of 5.47g/kg, low fertility soil standard level is promoted to by lean soil.
Comparative example 3
It using the rice husk in embodiment 3 as modifying agent, applies according to the amount of 2.9 tons/hectare into iron tailings, and is turned over
It ploughs, ploughed depth 30cm.
Using result：
Former iron tailings content of organic matter 1.15g/kg, after applying 3 modifying agent of comparative example, the content of organic matter of iron tailings is promoted
To the content of 2.06g/kg.
Application example
The iron tailings grown on soil crop after embodiment 3 and comparative example 1,2,3 improve is said as a result such as following table respectively
Bright charcoal, organic fertilizer are mixed with rice husk has synergistic effect to iron tailings fertility is increased as modifying agent.
Claims (6)
1. a kind of iron tailings soil organism modifying agent, which is characterized in that it is made of the raw material of following parts by weight：
1~2 part of charcoal, 0.2~0.5 part of organic fertilizer, 0.2~0.5 part of rice husk.
2. iron tailings soil organism modifying agent according to claim 1, which is characterized in that the charcoal is agricultural
Waste pyrolysis charring under 450~650 DEG C of anoxia conditions, then cross after pulverizer is ground the sieve of aperture 1mm and obtain.
3. iron tailings soil organism modifying agent according to claim 2, which is characterized in that the agricultural wastes are agriculture
The mixture of one or more of crop material, cotton bavin, sawdust, rice husk and animal wastes.
4. iron tailings soil organism modifying agent according to claim 1, which is characterized in that the organic fertilizer be according to
Weight percent, by the ratio of the freshly-slaughtered poultry excrement 45~55% of water content 50~0%, greenfeed 25~35% and bran chaff 15~25%
It is uniformly mixed, then sealed fermenting 45~60 days are made.
5. the purposes of iron tailings soil organism modifying agent according to claim 1, which is characterized in that by modifying agent with
The applied amount of 1.6~2.9 tons/hectare carries out greening of reclaiming for turning over iron tailings.
6. the purposes of iron tailings soil organism modifying agent according to claim 5, which is characterized in that be applied to iron tailings
Ploughed depth is 20~40cm when middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811102390.8A CN108863679A (en) | 2018-09-20 | 2018-09-20 | A kind of iron tailings soil organism modifying agent and its application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811102390.8A CN108863679A (en) | 2018-09-20 | 2018-09-20 | A kind of iron tailings soil organism modifying agent and its application |
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| CN108863679A true CN108863679A (en) | 2018-11-23 |
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| CN201811102390.8A Pending CN108863679A (en) | 2018-09-20 | 2018-09-20 | A kind of iron tailings soil organism modifying agent and its application |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
| CN113519231A (en) * | 2021-07-16 | 2021-10-22 | 湖北三鑫金铜股份有限公司 | Soilless reclamation method for fine sand tailings |
| CN113667483A (en) * | 2021-07-16 | 2021-11-19 | 山东大学 | Application of casein-glucan graft adhesive to improvement of tailing sand soil |
| CN113976616A (en) * | 2021-10-27 | 2022-01-28 | 苏州绿业环境发展有限公司 | Method for repairing polluted soil by combining cyclodextrin, modifier, plant and microorganism |
| CN114451092A (en) * | 2022-02-24 | 2022-05-10 | 昆明理工大学 | Method for constructing and greening copper tailing pond in arid region |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113667483A (en) * | 2021-07-16 | 2021-11-19 | 山东大学 | Application of casein-glucan graft adhesive to improvement of tailing sand soil |
| CN113976616A (en) * | 2021-10-27 | 2022-01-28 | 苏州绿业环境发展有限公司 | Method for repairing polluted soil by combining cyclodextrin, modifier, plant and microorganism |
| CN114451092A (en) * | 2022-02-24 | 2022-05-10 | 昆明理工大学 | Method for constructing and greening copper tailing pond in arid region |
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Application publication date: 20181123 |