CN112889624A - Greening soil prepared from construction waste and preparation method and application thereof - Google Patents
Greening soil prepared from construction waste and preparation method and application thereof Download PDFInfo
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- CN112889624A CN112889624A CN202110046977.7A CN202110046977A CN112889624A CN 112889624 A CN112889624 A CN 112889624A CN 202110046977 A CN202110046977 A CN 202110046977A CN 112889624 A CN112889624 A CN 112889624A
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- construction waste
- soil
- greening
- prepared
- waste
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- C09K2101/00—Agricultural use
Abstract
The invention is applicable to the technical field of soil ecological restoration, and provides greening soil prepared from construction waste and a preparation method and application thereof. A greening soil prepared from construction waste comprises the construction waste, sludge activated carbon, fly ash, powder and kitchen waste treatment liquid; the mass ratio of the construction waste, the sludge activated carbon, the fly ash, the powder and the kitchen waste treatment liquid is as follows: (70-90): (1-3): (3-15): (3-10): (1-3). The invention takes the construction waste as the raw material, and is prepared by matching with other wastes, the cost is low, the problem of utilization of the existing construction waste is solved, the waste of the raw material is reduced, and the resource utilization rate is improved; the improved greening soil has the advantages that the organic matters, nitrogen, phosphorus, available phosphorus and soluble salts in the improved greening soil are all improved, the soil quality is better, and the greening soil is more suitable for greening soil.
Description
Technical Field
The invention belongs to the technical field of soil ecological restoration, and particularly relates to greening soil prepared from construction waste, and a preparation method and application thereof.
Background
With the deep development of urban construction, the generation amount of various construction wastes is gradually increased, and how to treat and utilize the wastes becomes a problem of general attention of people. At present, the total amount of the construction waste accounts for 30-40% of the total amount of the urban waste. Most of the construction waste is transported to suburbs or villages without any treatment because of not being effectively utilized, thereby causing serious environmental pollution. With the promulgation and implementation of laws and regulations for protecting cultivated land and environment in China, how to treat and discharge construction waste becomes an important subject facing building construction enterprises and environmental protection departments, and the enhancement of the comprehensive utilization of the construction waste is urgent.
The construction waste belongs to a part of construction waste, and most of the construction waste is transported to suburbs or villages by construction units without any treatment and is treated in an open-air stacking or landfill mode. The traditional treatment method (open-air stacking, landfill, incineration and the like) not only consumes a large amount of construction expenses such as cultivated land, garbage clearing and the like, but also causes great pressure on environmental management.
The treatment of domestic construction waste is mainly stacking and filling, and the resource utilization is mainly to fire bricks and tiles, but the brick and tile market consumption is limited, so that the large-scale popularization and implementation are difficult, and the problem of utilization of a large amount of construction waste cannot be fundamentally solved.
Disclosure of Invention
The embodiment of the invention aims to provide greening soil prepared from construction waste, a preparation method and application thereof, and aims to solve the problems in the prior art pointed out in the background technology.
The embodiment of the invention is realized in such a way that the greening soil prepared by utilizing construction waste comprises the construction waste, sludge activated carbon, fly ash, powder and kitchen waste treatment liquid;
the mass ratio of the construction waste, the sludge activated carbon, the fly ash, the powder and the kitchen waste treatment liquid is as follows: (70-90): (1-3): (3-15): (3-10): (1-3).
As another preferred scheme of the embodiment of the invention, the mass ratio of the construction waste, the sludge activated carbon, the fly ash, the powder and the kitchen waste treatment liquid is as follows: (80-90): (2-3): (5-10): (4-8): (2-3).
As another preferable scheme of the embodiment of the invention, the construction waste is construction waste soil or a dewatered mud cake obtained after construction mud treatment.
As another preferable scheme of the embodiment of the present invention, the powder material is stone powder or sandy soil.
As another preferable scheme of the embodiment of the invention, the water content of the dewatered mud cake is 35-45%.
As another preferable scheme of the embodiment of the invention, the kitchen waste treatment liquid is kitchen waste leachate.
As another preferable scheme of the embodiment of the present invention, the fly ash is generated by a thermal power plant or a municipal central heating boiler using pulverized coal as a fuel.
As another preferable scheme of the embodiment of the invention, the sludge activated carbon is prepared by adopting a chemical-physical combined activation method.
Another object of an embodiment of the present invention is to provide a method for preparing soil for greening using construction waste, comprising the steps of:
weighing the raw materials for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Another object of the embodiments of the present invention is to provide an application of the soil for greening prepared by using construction waste in soil improvement.
The invention takes the construction waste as the raw material, and is prepared by matching with other wastes, the cost is low, the problem of utilization of the existing construction waste is solved, the waste of the raw material is reduced, and the resource utilization rate is improved; the sludge activated carbon has the advantages of low density, high porosity and the like, and can increase the permeability of the greening soil and the adsorption capacity of the greening soil to nutrient substances. The kitchen waste treatment liquid is leachate after primary treatment, contains various substances, and can provide partial nutrient elements for greening soil. The fly ash is produced by a thermal power plant or a city central heating boiler taking pulverized coal as fuel, and can reduce the water content of the improved greening soil. The stone powder or sandy soil can make the soil loose, have good water and air permeability and provide sufficient oxygen for the growth of plants. The kitchen waste treatment liquid is characterized in that the content of nutrient substances in the improved soil can be increased through biochemical degradation in the stacking and burying processes of the waste, so that the fertilizer efficiency of the greening soil is increased;
the preparation method is simple in preparation process and easy to operate, does not need special environment and equipment, can realize 'waste is made by waste, and waste is changed into valuable', can be applied to improvement of urban greening soil, slope greening soil and partial barren soil and the like, improves organic matters, nitrogen, phosphorus, available phosphorus and soluble salt in the improved greening soil, has better soil property, is more suitable for greening soil, and has good environmental benefit, social benefit and economic benefit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Example 1
The embodiment provides greening soil prepared from construction waste, and the preparation method of the greening soil prepared from the construction waste comprises the following steps:
weighing the following raw materials: 70kg of construction waste soil, 3kg of sludge activated carbon, 14kg of fly ash, 10kg of stone powder and 3kg of kitchen garbage percolate for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Example 2
The embodiment provides greening soil prepared from construction waste, and the preparation method of the greening soil prepared from the construction waste comprises the following steps:
weighing the following raw materials: 80kg of construction waste soil, 2kg of sludge activated carbon, 8kg of fly ash, 8kg of stone powder and 2kg of kitchen garbage percolate for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Example 3
The embodiment provides greening soil prepared from construction waste, and the preparation method of the greening soil prepared from the construction waste comprises the following steps:
weighing the following raw materials: 90kg of construction waste soil, 3kg of sludge activated carbon, 3kg of fly ash, 3kg of stone powder and 1kg of kitchen garbage percolate for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Example 4
The embodiment provides greening soil prepared from construction waste, and the preparation method of the greening soil prepared from the construction waste comprises the following steps:
weighing the following raw materials: 76kg of construction waste soil, 2kg of sludge activated carbon, 15kg of fly ash, 5kg of stone powder and 2kg of kitchen garbage percolate for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Example 5
The embodiment provides greening soil prepared from construction waste, and the preparation method of the greening soil prepared from the construction waste comprises the following steps:
weighing the following raw materials: 70kg of dehydrated mud cakes with the water content of 35 percent, 2kg of sludge activated carbon, 13kg of fly ash, 3kg of sandy soil and 1kg of kitchen garbage percolate are obtained after the construction mud treatment for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Example 6
The embodiment provides greening soil prepared from construction waste, and the preparation method of the greening soil prepared from the construction waste comprises the following steps:
weighing the following raw materials: 80kg of dehydrated mud cakes with the water content of 45 percent, 1kg of sludge activated carbon, 10kg of fly ash, 10kg of sandy soil and 3kg of kitchen garbage percolate are obtained after the construction mud treatment for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Example 7
The embodiment provides greening soil prepared from construction waste, and the preparation method of the greening soil prepared from the construction waste comprises the following steps:
weighing the following raw materials: 90kg of dehydrated mud cakes with the water content of 40 percent, 3kg of sludge activated carbon, 6kg of fly ash, 5kg of sandy soil and 1kg of kitchen garbage percolate are obtained after the construction mud treatment for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Example 8
The embodiment provides greening soil prepared from construction waste, and the preparation method of the greening soil prepared from the construction waste comprises the following steps:
weighing the following raw materials: 80kg of construction waste soil, 3kg of sludge activated carbon, 5kg of fly ash, 4kg of stone powder and 2kg of kitchen garbage percolate for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Example 9
The embodiment provides greening soil prepared from construction waste, and the preparation method of the greening soil prepared from the construction waste comprises the following steps:
weighing the following raw materials: 80kg of dehydrated mud cakes with the water content of 35 percent, 2kg of sludge activated carbon, 5kg of fly ash, 4kg of sandy soil and 2kg of kitchen garbage percolate are obtained after the construction mud treatment for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Example 10
The embodiment provides greening soil prepared from construction waste, and the preparation method of the greening soil prepared from the construction waste comprises the following steps:
weighing the following raw materials: 90kg of construction waste soil, 3kg of sludge activated carbon, 10kg of fly ash, 8kg of sandy soil and 3kg of kitchen garbage percolate for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
Examples of the experiments
The results of chemical property measurements of the soil before and after improvement and the results of texture measurements of the soil before and after improvement (GB/T50123-1999 Standard) are shown in Table 2, respectively, when the soil for greening prepared in examples 1 to 2 of the present invention was used for soil improvement.
TABLE 1
As can be seen from table 1, the improved soil for greening exhibited improved organic matter, nitrogen, phosphorus, available phosphorus and soluble salts, and was more suitable for greening soil.
TABLE 2
As is clear from table 2, the improved greening soil was excellent in soil quality and more suitable for greening soil.
The principle of the invention is as follows: the sludge activated carbon has the advantages of low density, high porosity and the like, and can increase the permeability of the greening soil and the adsorption capacity of the greening soil to nutrient substances. The kitchen waste treatment liquid is leachate after primary treatment, contains various substances, and can provide partial nutrient elements for greening soil. The fly ash is produced by a thermal power plant or a city central heating boiler taking pulverized coal as fuel, and can reduce the water content of the improved greening soil. The stone powder or sandy soil is soil formed by mixing a large amount of sand and a small amount of clay or powder of stones in a sand yard. The stone powder or sandy soil can make the soil loose and have good water and air permeability. The sludge activated carbon can be prepared by the existing processes such as a chemical-physical combined activation method, and the like, is mainly mesoporous, has large specific surface area, and forms special chemical functional groups on the surface. The kitchen waste treatment liquid is a high-concentration organic or inorganic component liquid generated by biochemical degradation and seepage in the process of stacking and burying the waste. The soil for greening of the invention can be applied to the improvement of urban greening soil, slope greening soil, partial barren land and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A greening soil prepared by utilizing construction waste is characterized by comprising the construction waste, sludge activated carbon, fly ash, powder and kitchen waste treatment liquid;
the mass ratio of the construction waste, the sludge activated carbon, the fly ash, the powder and the kitchen waste treatment liquid is as follows: (70-90): (1-3): (3-15): (3-10): (1-3).
2. The soil for greening prepared from construction waste according to claim 1, wherein the construction waste, sludge activated carbon, fly ash, powder and kitchen waste treatment fluid are in a mass ratio of: (80-90): (2-3): (5-10): (4-8): (2-3).
3. The greening soil prepared from construction waste as claimed in claim 1, wherein the construction waste is construction waste soil or dewatered mud cake obtained after construction mud treatment.
4. A greening soil prepared from construction waste according to claim 1, wherein said powdery material is stone powder or sandy soil.
5. A greening soil prepared from construction waste as claimed in claim 3, wherein the water content of the dewatered mud cake is 35-45%.
6. A greening soil prepared from construction waste as claimed in claim 1, wherein said kitchen waste treatment liquid is kitchen waste leachate.
7. A greening soil prepared from construction waste according to claim 1, wherein said fly ash is produced by a thermal power plant or a municipal central heating boiler using pulverized coal as fuel.
8. A greening soil prepared from construction waste as claimed in claim 1, wherein the sludge activated carbon is prepared by a chemical-physical combined activation method.
9. A method for preparing soil for greening according to any one of claims 1 to 8, comprising the steps of:
weighing the raw materials for later use;
and (3) uniformly stirring the raw materials to obtain the composition.
10. Use of the soil for greening produced from the construction waste according to any one of claims 1 to 8 for soil improvement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110046977.7A CN112889624A (en) | 2021-01-14 | 2021-01-14 | Greening soil prepared from construction waste and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110046977.7A CN112889624A (en) | 2021-01-14 | 2021-01-14 | Greening soil prepared from construction waste and preparation method and application thereof |
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| CN112889624A true CN112889624A (en) | 2021-06-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113207619A (en) * | 2021-06-28 | 2021-08-06 | 陕西地建土地工程技术研究院有限责任公司 | Compound soil and method for preparing compound soil by using construction waste |
| CN115443848A (en) * | 2022-10-27 | 2022-12-09 | 上海科立特农科（集团）有限公司 | Orchard rebuilding by using raw soil and method for improving waterlogging resistance of orchard |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316404A (en) * | 2000-04-06 | 2001-10-10 | 张兴权 | Process for preparing compound biologic organic fertilizer from solid waste |
| CN1388207A (en) * | 2002-05-17 | 2003-01-01 | 李鹏飞 | Artificial soil technology |
| CN104190698A (en) * | 2014-08-21 | 2014-12-10 | 中国科学院南京土壤研究所 | Method for restoring clayed soil of high-load heavy metal polluted site |
| CN105860987A (en) * | 2016-06-06 | 2016-08-17 | 佛山市聚成生化技术研发有限公司 | Composite type soil improvement agent and preparation method thereof |
| CN110523741A (en) * | 2019-07-26 | 2019-12-03 | 宇恒(南京)环保装备科技有限公司 | A kind of domestic refuse and its landfill yard dystopy sub-prime resource utilization method |
| WO2020164792A2 (en) * | 2019-02-12 | 2020-08-20 | Smart Material Printing B.V. | Mechanochemical process |
-
2021
- 2021-01-14 CN CN202110046977.7A patent/CN112889624A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316404A (en) * | 2000-04-06 | 2001-10-10 | 张兴权 | Process for preparing compound biologic organic fertilizer from solid waste |
| CN1388207A (en) * | 2002-05-17 | 2003-01-01 | 李鹏飞 | Artificial soil technology |
| CN104190698A (en) * | 2014-08-21 | 2014-12-10 | 中国科学院南京土壤研究所 | Method for restoring clayed soil of high-load heavy metal polluted site |
| CN105860987A (en) * | 2016-06-06 | 2016-08-17 | 佛山市聚成生化技术研发有限公司 | Composite type soil improvement agent and preparation method thereof |
| WO2020164792A2 (en) * | 2019-02-12 | 2020-08-20 | Smart Material Printing B.V. | Mechanochemical process |
| CN110523741A (en) * | 2019-07-26 | 2019-12-03 | 宇恒(南京)环保装备科技有限公司 | A kind of domestic refuse and its landfill yard dystopy sub-prime resource utilization method |
Non-Patent Citations (2)
| Title |
|---|
| 周传斌 等: "城市社区生活垃圾减量化的集成技术研究", 《环境科学》 * |
| 毛小云: "《废弃物农用功能化理论与技术》", 31 July 2017, 华南理工大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113207619A (en) * | 2021-06-28 | 2021-08-06 | 陕西地建土地工程技术研究院有限责任公司 | Compound soil and method for preparing compound soil by using construction waste |
| CN115443848A (en) * | 2022-10-27 | 2022-12-09 | 上海科立特农科（集团）有限公司 | Orchard rebuilding by using raw soil and method for improving waterlogging resistance of orchard |
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Application publication date: 20210604 |