CN106318397A - Garden soil improver prepared by wrapping red mud and sludge with thin shell and preparation method thereof - Google Patents
Garden soil improver prepared by wrapping red mud and sludge with thin shell and preparation method thereof Download PDFInfo
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- CN106318397A CN106318397A CN201610177450.7A CN201610177450A CN106318397A CN 106318397 A CN106318397 A CN 106318397A CN 201610177450 A CN201610177450 A CN 201610177450A CN 106318397 A CN106318397 A CN 106318397A
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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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- 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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/04—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only applied in a physical form other than a solution or a grout, e.g. as granules or gases
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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
- C09K2101/00—Agricultural use
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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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a garden soil improver prepared by wrapping red mud and sludge with a thin shell and a preparation method thereof. The soil improver comprises the following raw materials in parts by weight: 50-60 parts of sludge, 30-40 parts of red mud, 5-10 parts of acid pickling waste water and 2-5 parts of cement. The preparation method comprises the following steps: uniformly mixing sludge with red mud, stacking the mixture for fermentation, then adding waste acid to regulate the pH value to neutral, pressing the mixture into a spheroid by a forming machine, and wrapping the spheroid with thin cement to form a shell, thus obtaining the soil improver. The soil improver and the preparation method have the beneficial effects that the problem that plants with high salinity and alkalinity are difficult to survive in red mud afforestation is solved; the preparation method is simple in process, low in construction investment and low in operating cost, does not cause secondary pollution and avoids discharge of three wastes; and the soil improver provided by the invention is rich in organic matters, nitrogen, phosphorus and other nutrients and can achieve the effects of effectively improving the soil structure, supplementing the iron element essential to soil plants and avoiding iron-deficiency harms of the plants, such as chlorosis and yellowing.
Description
Technical field
The present invention relates to a kind of garden soil modifying agent and preparation method thereof.
Background technology
Mud is the by-product of sewage disposal, is a kind of extremely complex heterogeneous body being made up of organic relic, microorganism, colloid, various microorganism and organic and inorganic granule.Along with the discharge capacity of the fast development of Chinese society economy, sanitary sewage and trade effluent also grows with each passing day, in this relative property, the sludge yield of sewage treatment plant increases the most day by day.Therefore, the disposal of mud has become one of China's environmental problem urgently to be resolved hurrily.
Red mud is the waste residue that in aluminum oxide production process, discharge capacity is the biggest, and the chemical bases combined due to red mud is difficult to remove and content is big, contains again the reasons such as silicon, aluminum and other plurality of impurities, and the innoxious use for red mud is difficult to always.Countries in the world expert has carried out substantial amounts of scientific research to the comprehensive utilization of red mud for many years, but this type of progress is little.Therefore, process and the comprehensive utilization of waste red mud residues becomes a global hang-up.And red mud is mainly taked at present seabed or land stack the method disposed, but store up and not only need certain capital cost, and take a large amount of soil, due also to the chemical composition in red mud is infiltrated soil and easily caused soil alkalization, underground water pollution.Along with the development of aluminum i ndustry, producing the red mud amount that aluminium oxide discharges increases the most day by day, stores up the series of problems that disposal brought and goes out therewith, causes serious environmental problem.
Steel members blank electroplating surface, spray previous as to remove the oxide on surface, thus substantial amounts of spent acid wash water will be produced through overpickling.When spent acid wash water containing acid concentration the highest time, can recycling recycling.But after one returns recycling twice, acid content step-down in spent acid wash water is low, the most uneconomical for reclaiming, and after the metal ion in acid solution reaches to a certain degree, it cleans, corrosive effect is remarkably decreased and becomes the spent acid wash water that enterprise needs outer row to process.Spent acid leaching requirement is big, and has very big destructiveness to environment, if it not carried out appropriate comprehensive utilization, not only results in serious environmental pollution, and can cause the significant wastage of resource.
Summary of the invention
The purpose of the present invention is contemplated to solve the handling problems of above-mentioned mud, red mud; thering is provided a kind of production technology simple, investment cost of supplementary product is low, beneficially environmental conservation; effectively realize twice laid, and the method utilizing mud, red mud production garden soil modifying agent of three-waste free discharge.
The present invention is to solve above-mentioned technical problem and the technical solution used is as follows:
Garden soil modifying agent prepared by a kind of red mud mud shell parcel, including the raw material of following weight portion: mud 50～60 parts, red mud 30～40 parts, pickling waste waters 5～10 parts and cement 2～5 parts.
The optimum weight distribution ratio of described needed raw material is: 60 parts of mud, red mud 30 parts, pickling waste waters 8 parts, cement 2 parts.
The preparation method of above-mentioned garden soil modifying agent, comprises the steps of:
(1) sewage treatment plant first transports outward mud (moisture content 85～95%) (contain with red mud
Water rate 30～50%) send into blender mix homogeneously according to the above ratio；
(2) mud red mud hybrid reactor body is placed fermentation reaction 2 days；Utilize the high alkalinity of red mud, kill the noxious bacteria in mud and pathogen, and utilize the feature of sludge fermentation pantothenic acid, consume the basicity of red mud.
(3), after fermentation reaction is complete, spent acid wash water is added, between regulation pH value to 6,5～7.5；
(4) sending into forming machine pressure ball molding, out become the spheroplast of more rule, spheroplast's radius is between 1.5～5.0cm；
(5) being sprinkled upon ground by very thin for cement, thinness controls between 0.5～2.0mm；
(6) allow mud red mud mixing spheroplast roll around at cement powder thin layer, treat cement stick to mud red mud mixing spheroplast on area more than this body surface area of spheroplast more than 85%, after 95%, pull out；
(7) place, after cement adsorbing sphere body surface moisture, hardening, form cement thin shell, screening packaging gets product.
The present invention uses above-mentioned technical solution can reach to provide the benefit that:
1. mud is mixed with red mud, it is possible to use the high alkalinity of red mud, kill the noxious bacteria in mud and pathogen, and utilize saponification, change mud organizational structure, beneficially later stage soil remediation.Mud mixes with red mud, it is also possible to utilizes mud to contain the feature of the nutrient such as abundant Organic substance and nitrogen phosphorus, makes up the simple inorganic particle of red mud, the shortcoming that low nutrient plant cannot grow；
2. utilize in H+ and Fe2+ in spent acid wash water and OH-in red mud, reduce mud and the basicity of red mud mixture so that it is drop to the partial neutral state of plant suitable growth.Utilize the materials such as the ferrous sulfate in spent acid wash water, ferrous chloride, remove mud stink；
3. add cement after molding and make shell, because this housing is not very total enclosing, when afforestation uses, salt and alkali in the inner stuffing that in shell, mud red mud is mixed into can be slowly released by position the most airtight in housing, reach the slow release that early stage is saline and alkaline, solve the problem that in red mud greening, high salt basicity plant difficulty survives；
The most this processing method makes mud, red mud and spent acid wash water be obtained by simultaneously, fundamentally solves problem of environmental pollution, and not only technique is simple, and infrastructure investment is few, and operating costs are low, and does not cause secondary pollution, three-waste free discharge；
The most this processing method can realize twice laid, but also can effectively improve Soil structure, supplements the necessary ferrum element of edaphophyte, it is to avoid the iron deficiency harm such as chlorosis jaundice occurs in plant.
Accompanying drawing explanation
Fig. 1 is the step route map of the present invention.
Detailed description of the invention
In order to the technical scheme of this reality invention is explained further, below by specific embodiment, the present invention will be described in detail.Preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.
Embodiment 1:
Garden soil modifying agent prepared by a kind of red mud mud shell parcel, is made up of following each recipe ingredient ratio by weight: 60 parts of mud, red mud 30 parts, spent acid wash water 8 parts, cement 2 parts.
The preparation method of above-mentioned garden soil modifying agent, comprises the steps of:
1) sewage treatment plant first transports outward mud (moisture content 85～95%) and red mud (moisture content 30～50%) send into blender according to the above ratio and mix homogeneously；
2) mud red mud hybrid reactor body is placed fermentation reaction 2 days；Utilize the high alkalinity of red mud, kill the noxious bacteria in mud and pathogen, and utilize the feature of sludge fermentation pantothenic acid, consume the basicity of red mud.
3), after fermentation reaction is complete, spent acid wash water is added, between regulation pH value to 6,5～7.5；
4) sending into forming machine pressure ball molding, out become the spheroplast of more rule, spheroplast's radius is between 1.5～5.0cm；
5) being sprinkled upon ground by very thin for cement, thinness controls between 0.5～2.0mm；
6) allow mud red mud mixing spheroplast roll around at cement powder thin layer, treat cement stick to mud red mud mixing spheroplast on area more than this body surface area of spheroplast more than 85%, after 95%, pull out；
7) place, after cement adsorbing sphere body surface moisture, hardening, form cement thin shell.Screening packaging gets product.
Embodiment 2:
Garden soil modifying agent prepared by a kind of red mud mud shell parcel, is made up of following each recipe ingredient ratio by weight: 50 parts of mud, red mud 40 parts, spent acid wash water 5 parts, cement 5 parts.
The preparation method of above-mentioned garden soil modifying agent, comprises the steps of:
1) sewage treatment plant first transports outward mud (moisture content 85～95%) and red mud (moisture content 30～50%) send into blender according to the above ratio and mix homogeneously；
2) mud red mud hybrid reactor body is placed fermentation reaction 2 days；Utilize the high alkalinity of red mud, kill the noxious bacteria in mud and pathogen, and utilize the feature of sludge fermentation pantothenic acid, consume the basicity of red mud.
3), after fermentation reaction is complete, spent acid wash water is added, between regulation pH value to 6,5～7.5；
4) sending into forming machine pressure ball molding, out become the spheroplast of more rule, spheroplast's radius is between 1.5～5.0cm；
5) being sprinkled upon ground by very thin for cement, thinness controls between 0.5～2.0mm；
6) allow mud red mud mixing spheroplast roll around at cement powder thin layer, treat cement stick to mud red mud mixing spheroplast on area more than this body surface area of spheroplast more than 85%, after 95%, pull out；
7) place, after cement adsorbing sphere body surface moisture, hardening, form cement thin shell.Screening packaging gets product.
Embodiment 3:
Garden soil modifying agent prepared by a kind of red mud mud shell parcel, is made up of following each recipe ingredient ratio by weight: 50 parts of mud, red mud 36 parts, spent acid wash water 10 parts, cement 4 parts.
The preparation method of above-mentioned garden soil modifying agent, comprises the steps of:
1) sewage treatment plant first transports outward mud (moisture content 85～95%) and red mud (moisture content 30～50%) send into blender according to the above ratio and mix homogeneously；
2) mud red mud hybrid reactor body is placed fermentation reaction 2 days；Utilize the high alkalinity of red mud, kill the noxious bacteria in mud and pathogen, and utilize the feature of sludge fermentation pantothenic acid, consume the basicity of red mud.
3), after fermentation reaction is complete, spent acid wash water is added, between regulation pH value to 6,5～7.5；
4) sending into forming machine pressure ball molding, out become the spheroplast of more rule, spheroplast's radius is between 1.5～5.0cm；
5) being sprinkled upon ground by very thin for cement, thinness controls between 0.5～2.0mm；
6) allow mud red mud mixing spheroplast roll around at cement powder thin layer, treat cement stick to mud red mud mixing spheroplast on area more than this body surface area of spheroplast more than 85%, after 95%, pull out；
7) place, after cement adsorbing sphere body surface moisture, hardening, form cement thin shell.Screening packaging gets product.
Above are only the detailed description of the invention of the present invention, but the design concept of the present invention is not limited thereto, all changes utilizing this design that the present invention carries out unsubstantiality, the behavior invading scope all should be belonged to.
Claims (2)
1. the garden soil modifying agent that prepared by a red mud mud shell parcel, it is characterised in that: include the raw material of following weight portion: mud 50～60 parts, red mud 30～40 parts, pickling waste waters 5～10 parts and cement 2～5 parts.
The preparation method of garden soil modifying agent prepared by a kind of red mud mud shell parcel the most according to claim 1, it is characterised in that comprise the steps of
1) first by sewage and red mud stirring and evenly mixing；
2) mud red mud hybrid reactor body is placed fermentation reaction 2 days；
3) adding spent acid wash water, regulation pH value is to 6.5～7.5；
4) sending into forming machine pressure ball molding, out become the spheroplast of more rule, spheroplast's radius is between 1.5～5.0cm；
5) being sprinkled upon ground by very thin for cement, thinness controls between 0.5～2.0mm；
6) allow mud red mud mixing spheroplast roll around at cement powder thin layer, treat cement stick to mud red mud mixing spheroplast on area more than this body surface area of spheroplast more than 85%, after 95%, pull out；
7) place, after cement adsorbing sphere body surface moisture, hardening, form cement thin shell, screening packaging gets product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177450.7A CN106318397A (en) | 2016-03-24 | 2016-03-24 | Garden soil improver prepared by wrapping red mud and sludge with thin shell and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610177450.7A CN106318397A (en) | 2016-03-24 | 2016-03-24 | Garden soil improver prepared by wrapping red mud and sludge with thin shell and preparation method thereof |
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| CN106318397A true CN106318397A (en) | 2017-01-11 |
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| CN201610177450.7A Pending CN106318397A (en) | 2016-03-24 | 2016-03-24 | Garden soil improver prepared by wrapping red mud and sludge with thin shell and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852393A (en) * | 2019-01-07 | 2019-06-07 | 黑龙江大学 | A kind of water-retaining type heavy-metal contaminated soil repairs the preparation method and applications of particle |
| CN112742856A (en) * | 2020-12-15 | 2021-05-04 | 江苏省环境工程技术有限公司 | Method for repairing heavy metal and organic contaminated soil by applying waste-based modifier |
| CN115805229A (en) * | 2022-11-24 | 2023-03-17 | 贵州大学 | Red mud alkalinity regulation and control method |
Citations (6)
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| CN101434499A (en) * | 2007-11-13 | 2009-05-20 | 中国农业科学院烟草研究所 | Controlled release fertilizer and method of preparing the same |
| KR20100127541A (en) * | 2009-05-26 | 2010-12-06 | 이남훈 | Ecological reclamation agent manufacturing mehtod |
| KR101067473B1 (en) * | 2011-03-31 | 2011-09-27 | 유기정 | The greener recycled soil composition and its manufacturing method using waste materials |
| CN103936522A (en) * | 2014-05-08 | 2014-07-23 | 济南大学 | Method for improving nutrient preserving capability of planting concrete |
| CN104119161A (en) * | 2014-08-12 | 2014-10-29 | 许盛英 | Method for producing red mud compressed nutrient soil |
| CN105316001A (en) * | 2015-11-17 | 2016-02-10 | 中电投山西铝业有限公司 | Red mud particle soil repairing adhesives and preparation method thereof |
-
2016
- 2016-03-24 CN CN201610177450.7A patent/CN106318397A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434499A (en) * | 2007-11-13 | 2009-05-20 | 中国农业科学院烟草研究所 | Controlled release fertilizer and method of preparing the same |
| KR20100127541A (en) * | 2009-05-26 | 2010-12-06 | 이남훈 | Ecological reclamation agent manufacturing mehtod |
| KR101067473B1 (en) * | 2011-03-31 | 2011-09-27 | 유기정 | The greener recycled soil composition and its manufacturing method using waste materials |
| CN103936522A (en) * | 2014-05-08 | 2014-07-23 | 济南大学 | Method for improving nutrient preserving capability of planting concrete |
| CN104119161A (en) * | 2014-08-12 | 2014-10-29 | 许盛英 | Method for producing red mud compressed nutrient soil |
| CN105316001A (en) * | 2015-11-17 | 2016-02-10 | 中电投山西铝业有限公司 | Red mud particle soil repairing adhesives and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852393A (en) * | 2019-01-07 | 2019-06-07 | 黑龙江大学 | A kind of water-retaining type heavy-metal contaminated soil repairs the preparation method and applications of particle |
| CN112742856A (en) * | 2020-12-15 | 2021-05-04 | 江苏省环境工程技术有限公司 | Method for repairing heavy metal and organic contaminated soil by applying waste-based modifier |
| CN115805229A (en) * | 2022-11-24 | 2023-03-17 | 贵州大学 | Red mud alkalinity regulation and control method |
| CN115805229B (en) * | 2022-11-24 | 2023-11-24 | 贵州大学 | Red mud alkalinity regulating and controlling method |
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Application publication date: 20170111 |