CN105693326A - Preparation method of urban compostable organic waste soil improvement material - Google Patents
Preparation method of urban compostable organic waste soil improvement material Download PDFInfo
- Publication number
- CN105693326A CN105693326A CN201610042180.9A CN201610042180A CN105693326A CN 105693326 A CN105693326 A CN 105693326A CN 201610042180 A CN201610042180 A CN 201610042180A CN 105693326 A CN105693326 A CN 105693326A
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- soil improvement
- soil
- improvement material
- preparation
- organic waste
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- 239000000463 material Substances 0.000 title claims abstract description 39
- 239000002689 soil Substances 0.000 title claims abstract description 36
- 230000006872 improvement Effects 0.000 title claims abstract description 25
- 239000010815 organic waste Substances 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000010921 garden waste Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000010564 aerobic fermentation Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 8
- 230000000855 fungicidal effect Effects 0.000 claims description 5
- 239000000417 fungicide Substances 0.000 claims description 5
- 244000005700 microbiome Species 0.000 claims description 5
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 244000025254 Cannabis sativa Species 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 239000003337 fertilizer Substances 0.000 abstract description 5
- 239000010791 domestic waste Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000855 fermentation Methods 0.000 abstract description 3
- 230000004151 fermentation Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000009264 composting Methods 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 230000000813 microbial effect Effects 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 11
- 239000002699 waste material Substances 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013138 pruning Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004016 soil organic matter Substances 0.000 description 1
Classifications
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- 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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
-
- 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
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
- A01G24/23—Wood, e.g. wood chips or sawdust
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention provides a preparation method of an urban compostable organic waste soil improvement material, and belongs to the technical field of ecological engineering. The preparation method comprises the following steps of mixing dewatered sludge of which the water content is 70 to 80 percent with garden waste of which the water content is 35 to 40 percent according to a volume proportion of 3:2; uniformly mixing and stirring by adding 1kg/m<3> pulverized fuel ash and 0.4L/m<3> composite microbial agent; then carrying out strip stack type static aerobic fermentation; using a mixed material as a soil improvement material when the water content of the mixed material is reduced to 40 percent; applying the soil improvement material to the surface of soil for improvement. According to the preparation method of the urban compostable organic waste soil improvement material, provided by the invention, on the basis of an existing aerobic composting fermentation technology, the sludge and the garden waste are combined and matched and can be used for improving poor soil after composting fermentation, so that comprehensive utilization of urban domestic waste is effectively realized, soil conditions are improved, a good environment condition is created for vegetation growth, the content of organic matters in the soil is increased, the using of chemical fertilizer is reduced, and ecological cyclic development is realized.
Description
Technical field
The present invention relates to ecological engineering technology field, particularly relate to a kind of city and can degenerate organic waste soil improvement material preparation method。
Background technology
In recent years, along with the raising of environmental requirement, the sludged waste material produce city sewage plant and the utilization of garden waste become very necessary and urgent。By utilizing mud and garden waste to prepare soil improvement material, the region that operation of nature and human activity are destroyed the soil site condition caused poor is improved, sandy land domatic including naturally exposed massif, abandoned mine, highway excavation, waste mound field etc.。Advantageously account for the content depending on, improving the soil organism unduly to fertilizer and the recycling of resource is had great importance。
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of city can degenerate organic waste soil improvement material preparation method。By effectively realizing the comprehensive utilization of municipal domestic waste, improve edaphic condition, build good habitat conditions for vegetation growth, improve soil organic matter content, reduce the use of chemical fertilizer, it is achieved ecological circulation develops。
The method specifically comprises the following steps that
(1) garden waste that dewatered sludge that moisture content is 70～80%, moisture content are 35%～45% is mixed according to the volume ratio of 3:2, then, add 1kg/m3Flyash carry out mixing, stirring；
(2) according to 0.4L/m on step (1) stirs material3Spray complex micro organism fungicide, and be uniformly mixed, control material water ratio 45%～60%；
(3) by the material that step (2) obtains be bar buttress formula stack, bar buttress wide 1.0～1.5m, high 0.8～1.0m, length is advisable with applicable operation；
(4) material in step (3) carrying out aerobic fermentation at the temperature of 50～70 DEG C, ferment 15～18 days, material water ratio is down to less than 40%, obtains soil improvement material。
Wherein, in step (1), garden waste is branch, fallen leaves, grass cuttings etc., and garden waste carries out pulverization process before combination, and after pulverizing, granularity is 30mm。Complex micro organism fungicide in step (2) is VT-1000。
The soil improvement material application process prepared by the method is utilized to be:
One, domatic or plane dibbling uses
In the kind plant hole of slope, adopt city can degenerate organic waste soil improvement material and local soil moved in improve the original and mix homogeneously a backfill kind plant hole according to the ratio of 1:1, more directly plant and plant。
Two, comprehensive plant use wholely
City can be degenerated organic waste soil improvement material uniformly spread fertilizer over the fields with surface layer, adopt rotary cultivator or artificial, the soil of improved materials Yu top layer 30cm is sufficiently mixed, then carries out plant growing。
Having the beneficial effect that of the technique scheme of the present invention:
Garden waste is mainly the branch etc. that leaves, grass cuttings and pruning process produce。Plant organic matter aboundresources, convenient sources。Rich in nutritional labelings such as organic matter, N P and K in mud, content of beary metal is relatively low, there is the potential quality of recycling, for afforestation, forestry, the discarded field such as wasteland restoration of the ecosystem, the sandy bare land betterment of land, it is possible not only to improve soil porosity, improves Soil structure, improves the moisture holding capacity of soil, increases the soil organism and nutrient, and by providing nutrient to plant, create good soil environment condition, promote plant growing。Moreover it is possible to the harm that reduction heavy metal and harmful substance cause。
In the present invention by sludged waste material and garden waste are carried out aerobic fermentation, it is converted into the septage of certain nutritional labeling, solve the difficult problem that municipal domestic waste processes, make the soil improvement material with good nutrient condition, it is achieved that recycling, decrease the domestic refuse harm to environment, there is investment and floor space is little, the process cycle is short, and operating cost is low, the feature of environmental protection and saving。
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, it is described in detail below in conjunction with specific embodiment。
The present invention provides a kind of city can degenerate organic waste soil improvement material preparation method。Employing the method concretely comprises the following steps:
(1) garden waste including branch, fallen leaves, grass cuttings etc. and carry out pulverization process, the material after process is typically in about 30mm。
(2) sludged waste material of sewage treatment plants, garden waste are mixed according to the volume ratio of 3:2, stir。
(3) according to 1kg/m3Add flyash, 0.4L/m3Add complex micro organism fungicide (VT-1000)。
(4) material after mix homogeneously is that bar buttress formula is stacked, and bar buttress wide 1.5m, high 0.9m, length is advisable with applicable operation。
(5) ferment under the aerobic condition of 55 DEG C, carry out static aerobic fermentation。
(6) after aerobic fermentation 18 days, fermentation materials moisture content is down to less than 40%, and material can be used as nutrition-allocated proportion and enriches rational Soil improvement matrix。
(7) soil improvement material prepared uniformly is spread fertilizer over the fields with surface layer, adopt rotary cultivator, the soil of improved materials Yu top layer 30cm is sufficiently mixed, levels land, then carry out plant growing。
The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from principle of the present invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention。
Claims (4)
1. organic waste soil improvement material preparation method can be degenerated in a city, it is characterised in that: the method step is as follows:
(1) garden waste that dewatered sludge that moisture content is 70～80%, moisture content are 35%～45% is mixed according to the volume ratio of 3:2, then, add 1kg/m3Flyash carry out mixing, stirring；
(2) according to 0.4L/m on step (1) stirs material3Spray complex micro organism fungicide, and be uniformly mixed, control material water ratio 45%～60%；
(3) by the material that step (2) obtains be bar buttress formula stack, bar buttress wide 1.0～1.5m, high 0.8～1.0m；
(4) material in step (3) carrying out aerobic fermentation at the temperature of 50 DEG C-70 DEG C, ferment 15～18 days, material water ratio is down to less than 40%, obtains soil improvement material。
2. organic waste soil improvement material preparation method can be degenerated in city according to claim 1, it is characterised in that: described garden waste is one or more in branch, fallen leaves, grass cuttings。
3. organic waste soil improvement material preparation method can be degenerated in city according to claim 1, it is characterised in that: described garden waste carries out pulverization process before combination, and after pulverizing, granularity is 30mm。
4. organic waste soil improvement material preparation method can be degenerated in city according to claim 1, it is characterised in that: the complex micro organism fungicide in described step (2) is VT-1000。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042180.9A CN105693326A (en) | 2016-01-21 | 2016-01-21 | Preparation method of urban compostable organic waste soil improvement material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042180.9A CN105693326A (en) | 2016-01-21 | 2016-01-21 | Preparation method of urban compostable organic waste soil improvement material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105693326A true CN105693326A (en) | 2016-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610042180.9A Pending CN105693326A (en) | 2016-01-21 | 2016-01-21 | Preparation method of urban compostable organic waste soil improvement material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105693326A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106631203A (en) * | 2016-11-16 | 2017-05-10 | 新疆天物生态科技股份有限公司 | Method for producing organic fertilizer by utilizing landscaping wastes |
| CN106797820A (en) * | 2017-01-12 | 2017-06-06 | 清华大学 | Recovery of ecologic environment in a mine nutrition earthing with municipal sludge as main matrix and preparation method thereof |
| CN107027541A (en) * | 2017-03-31 | 2017-08-11 | 北京农学院 | A kind of method of the utilization municipal solid wastes production afforestation raw-soil again |
| CN107114026A (en) * | 2017-05-02 | 2017-09-01 | 杨朝雄 | Physics soil improvement method |
| CN107494052A (en) * | 2017-10-11 | 2017-12-22 | 福建润土工程科技有限公司 | A kind of preparation method of afforestation cultivation matrix |
| CN109328520A (en) * | 2018-10-12 | 2019-02-15 | 上海市园林科学规划研究院 | A kind of method of organic waste improvement urban soil crumb structure |
| CN109438010A (en) * | 2018-11-29 | 2019-03-08 | 盛世生态环境股份有限公司 | A method of compost is prepared using garden waste and breeding wastewater |
| CN110157440A (en) * | 2018-01-31 | 2019-08-23 | 贵州省生物研究所 | A kind of Rosa roxburghii orchard soil compound improver and soil improvement method |
| CN112979389A (en) * | 2021-02-24 | 2021-06-18 | 武汉市园林科学研究院 | Garden sludge modification formula and method for improving soil by garden sludge modification formula |
| CN113403084A (en) * | 2021-05-28 | 2021-09-17 | 浙江问源环保科技股份有限公司 | Salinized soil composite modifier produced by using agricultural waste, preparation method and application thereof |
| CN115477559A (en) * | 2022-08-15 | 2022-12-16 | 北京林业大学 | Novel soil improvement microbial agent and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103461084A (en) * | 2013-09-12 | 2013-12-25 | 北京林业大学 | Afforesting matrix for improving stone-pit waste muck and preparation method and application of afforesting matrix |
| CN103788957A (en) * | 2014-01-22 | 2014-05-14 | 扬州红硕环境与生物工程研究有限公司 | Repair material on top layer of contaminated soil and preparation method thereof |
| CN104446714A (en) * | 2013-09-23 | 2015-03-25 | 香港科恩贸易有限公司 | Method for using compound microbial agent for sludge composting |
| CN105036822A (en) * | 2015-07-08 | 2015-11-11 | 江苏田娘农业科技有限公司 | Method for preparing specific fertilizer for afforestation |
-
2016
- 2016-01-21 CN CN201610042180.9A patent/CN105693326A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103461084A (en) * | 2013-09-12 | 2013-12-25 | 北京林业大学 | Afforesting matrix for improving stone-pit waste muck and preparation method and application of afforesting matrix |
| CN104446714A (en) * | 2013-09-23 | 2015-03-25 | 香港科恩贸易有限公司 | Method for using compound microbial agent for sludge composting |
| CN103788957A (en) * | 2014-01-22 | 2014-05-14 | 扬州红硕环境与生物工程研究有限公司 | Repair material on top layer of contaminated soil and preparation method thereof |
| CN105036822A (en) * | 2015-07-08 | 2015-11-11 | 江苏田娘农业科技有限公司 | Method for preparing specific fertilizer for afforestation |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106631203A (en) * | 2016-11-16 | 2017-05-10 | 新疆天物生态科技股份有限公司 | Method for producing organic fertilizer by utilizing landscaping wastes |
| CN106797820B (en) * | 2017-01-12 | 2020-08-04 | 清华大学 | Mine ecological restoration nutrient covering soil with municipal sludge as main matrix and preparation method thereof |
| CN106797820A (en) * | 2017-01-12 | 2017-06-06 | 清华大学 | Recovery of ecologic environment in a mine nutrition earthing with municipal sludge as main matrix and preparation method thereof |
| CN107027541A (en) * | 2017-03-31 | 2017-08-11 | 北京农学院 | A kind of method of the utilization municipal solid wastes production afforestation raw-soil again |
| CN107114026A (en) * | 2017-05-02 | 2017-09-01 | 杨朝雄 | Physics soil improvement method |
| CN107494052A (en) * | 2017-10-11 | 2017-12-22 | 福建润土工程科技有限公司 | A kind of preparation method of afforestation cultivation matrix |
| CN110157440A (en) * | 2018-01-31 | 2019-08-23 | 贵州省生物研究所 | A kind of Rosa roxburghii orchard soil compound improver and soil improvement method |
| CN109328520A (en) * | 2018-10-12 | 2019-02-15 | 上海市园林科学规划研究院 | A kind of method of organic waste improvement urban soil crumb structure |
| CN109438010A (en) * | 2018-11-29 | 2019-03-08 | 盛世生态环境股份有限公司 | A method of compost is prepared using garden waste and breeding wastewater |
| CN112979389A (en) * | 2021-02-24 | 2021-06-18 | 武汉市园林科学研究院 | Garden sludge modification formula and method for improving soil by garden sludge modification formula |
| CN113403084A (en) * | 2021-05-28 | 2021-09-17 | 浙江问源环保科技股份有限公司 | Salinized soil composite modifier produced by using agricultural waste, preparation method and application thereof |
| CN115477559A (en) * | 2022-08-15 | 2022-12-16 | 北京林业大学 | Novel soil improvement microbial agent and preparation method and application thereof |
| CN115477559B (en) * | 2022-08-15 | 2024-05-10 | 北京林业大学 | Soil improvement microbial agent and preparation method and application thereof |
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Application publication date: 20160622 |
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