CN106831240A - Using the compost treatment method for food residues and kitchen waste compost conditioner of spent bleaching clay - Google Patents

Using the compost treatment method for food residues and kitchen waste compost conditioner of spent bleaching clay Download PDF

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Publication number
CN106831240A
CN106831240A CN201710080802.1A CN201710080802A CN106831240A CN 106831240 A CN106831240 A CN 106831240A CN 201710080802 A CN201710080802 A CN 201710080802A CN 106831240 A CN106831240 A CN 106831240A
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CN
China
Prior art keywords
compost
bleaching clay
spent bleaching
matrix
thoroughly decomposed
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Pending
Application number
CN201710080802.1A
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Chinese (zh)
Inventor
杨乐
高素萍
谢爱军
刘锡林
李晓艳
俞泳宏
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Gansu tiannongyihe Agriculture Co., Ltd
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Shanghai Kunpeng Environmental Protection Technology Co Ltd
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Priority to CN201710080802.1A priority Critical patent/CN106831240A/en
Publication of CN106831240A publication Critical patent/CN106831240A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B7/00Fertilisers based essentially on alkali or ammonium orthophosphates
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80Soil conditioners

Abstract

The invention discloses the compost treatment method for food residues and compost conditioner of a kind of utilization spent bleaching clay, the method includes that spent bleaching clay, agriculture and forestry organic waste material, microbial bacterial agent are mixed and carry out compost fermentation by (1) and obtains matrix of becoming thoroughly decomposed;(2) kitchen garbage is mixed and carries out compost with matrix of becoming thoroughly decomposed and obtain the compost product that can be made into organic fertilizer and/or soil conditioner.Compost conditioner includes 79~92 parts of matrix of becoming thoroughly decomposed, 2~8 parts of calcium phosphate, 0.5~3 part of iron chloride, neutral and/or 3~10 parts of alkaline pH adjusting agent.The inventive method can not only reduce a large amount of influences of grease, cellulose to compost in addition raw material, and can accelerate compost speed, improve compost quality stability;Characterization of adsorption, the solidification of trace element of spent bleaching clay are made full use of simultaneously, the volatile quantity of foul smell in compost can be reduced, nitrogen loss is reduced, and improve compost quality.

Description

Using the compost treatment method for food residues and kitchen waste compost conditioner of spent bleaching clay
Technical field
The present invention relates to the changing waste into resources direction in environmental area, and in particular to a kind of compost treatment method for food residues And compost conditioner.
Background technology
Kitchen garbage is the main component of domestic waste.With the development of catering industry, food materials selected by people are more next Finer, the total amount of kitchen garbage is into sustainable growth trend.The current main processing mode of kitchen garbage has directly landfill etc. Secondary processing mode and compost fermentation etc. are converted into the secondary Land use systems of regenerated resources.Because kitchen garbage is nutritious, ash content Few, with compared with high-moisture percentage, a large amount of kitchen garbages are directly filled would generally produce influence to the stability of refuse landfill, produce Certain potential safety hazard, also result in the waste of resource.Compost treatment kitchen garbage is a kind of current treatment side more praised highly Formula, which not only can very well reduce influence of the kitchen garbage to environment, can also realize the recycling of resource, be formed with Machine fertilizer, for agricultural improvement soil etc..But generally produced along with foul smell such as hydrogen sulfide, ammonia in kitchen waste compost process, this Not only the environment in influence compost place, also makes compost nitrogen loss serious.
Spent bleaching clay refers to for the waste material after the atlapulgite use decolourized in modern oil and fat refining process.Its main component It is bentonite, neutral grease, pigment etc..Because bleaching earth adsorption ability is stronger, usual spent bleaching clay fat content 20%~40%, Even if spent bleaching clay to be squeezed recovery oil plant again, its oil content is still 10% or so.If such spent bleaching clay cannot be timely Treatment, it is likely that fire can be triggered, unnecessary loss is caused, while also polluting the environment.Even if advocating resources circulation profit Today, the recycling of spent bleaching clay is also only comprehensively utilized in the fraction industry such as agricultural, chemical industry, environment.
Patent CN102030569B is disclosed and assisted fermentation agent is preferably added in the fermentation process of organic waste, as Assisted fermentation agent can enumerate such as spent bleaching clay and polysaccharide catabolic enzyme, wherein when processing animal manure class organic waste, it is excellent Choosing mixes spent bleaching clay as needed, when being processed for swill, preferred mixing polysaccharide class catabolic enzyme as needed.This is special Profit is not regarded as that spent bleaching clay is suitable to swill treatment, and actually passing present inventor's research has shown that, such as by spent bleaching clay Directly it is mixed in swill fat content fermentation raw material higher that to carry out fermentation process really impracticable, adds spent bleaching clay also It is found that composting process and compost quality can be delayed, this is probably that the hydrophobic structure of grease in spent bleaching clay can constitute local anaerobic ring Border, causes aerobic microbiological to obtain adequate nutrients, influences composting process and compost quality.Use described in aforementioned patent The method that polysaccharide catabolic enzyme carrys out assisted fermentation swill is although feasible, but relatively costly, and can not realize spent bleaching clay The utilization of resources.
The content of the invention
An object of the present invention is to overcome the deficiencies in the prior art to provide a kind of kitchen waste compost of utilization spent bleaching clay Processing method, the method can reduce the wasting of resources, improve kitchen waste compost and produce foul smell situation, accelerate compost speed, carry Compost quality high.
The second object of the present invention is to provide the compost conditioner of kitchen waste compost treatment.
To achieve the above object, a kind of technical scheme that the present invention takes is as follows for the present invention:
A kind of compost treatment method for food residues of utilization spent bleaching clay, the method comprises the following steps:(1) by spent bleaching clay, Agriculture and forestry organic waste material, microbial bacterial agent mix and carry out compost fermentation and obtain to become thoroughly decomposed matrix;(2) kitchen garbage is mixed with matrix of becoming thoroughly decomposed Merging carries out compost and obtains the compost product that can be made into organic fertilizer and/or soil conditioner.
According to the present invention, the spent bleaching clay or spent bleaching clay that spent bleaching clay is directly obtained after being decolourized for edible oil are squeezed carry again Remaining spent bleaching clay after oil.It is preferred that the oil content of the spent bleaching clay for using is 5wt%~15wt% (mass content).
According to the present invention, stalk and/or ornamental plant of the agriculture and forestry organic waste material as produced by agricultural planting wither naturally Fall or the plant residue produced by manually pruning is (mainly including rice straw, straw, maize straw, leaf, grass cuttings, the residual branch pruned Deng) obtain after crushing, particle diameter is less than or equal to 3cm.
Preferably, the microbial bacterial agent is that bacillus coagulans and bacillus subtilis are by strain conidia powder mass ratio 0.6~0.8:1 mixing composition, the living bacteria count of the strain conidia powder is respectively 200~50,000,000,000/gram.Strain conidia powder is equal Directly can be bought by fungi preservation unit.
Preferably, compost method is in step (1):Spent bleaching clay, agriculture and forestry organic waste material, microbial bacterial agent are mixed, regulation contains Water is 40~48%, and regulation C/N is 21.8~24.4;Compost fermentation, uninterrupted turning, maintain heap body internal temperature at room temperature 25~40 DEG C, maintain 18~48h of the temperature;Air drying to moisture content is not more than 20%, obtains final product matrix of becoming thoroughly decomposed.
Preferably, in step (1), the spent bleaching clay, agriculture and forestry organic waste material, the charged material weight ratio of microbial bacterial agent for 55~ 90:67~90:0.01~0.25.
It is further preferred that methods described is additionally included in step (1), and step (2) forward direction to become thoroughly decomposed and add phosphoric acid in matrix afterwards Calcium, iron chloride and pH adjusting agent, the weight ratio of matrix of becoming thoroughly decomposed, calcium phosphate, calcium phosphate, iron chloride and pH adjusting agent is 79~92:2 ~8:0.5~3:3~10.Preferably, pH adjusting agent is neutral or alkaline pH adjusting agent, be particularly preferred as plant ash, soda ash or Quick lime etc..
Preferably, the matrix of becoming thoroughly decomposed is 0.7~1.2 with the weight ratio of kitchen garbage:1.
Preferably, step (2) uses aerobic composting process, is embodied as follows:Kitchen garbage is filtered first unnecessary Moisture, the object that will wherein be not easily decomposed and crush (such as plastics, big bone etc.) is rejected, crushing material to particle diameter is less than etc. In 3cm, the matrix that then will become thoroughly decomposed mixes with kitchen garbage, stirs, and regulation moisture content of material is 50%~60%;Regulation C/N is 20~30:1;Regulation pH is 7~8, carries out compost, and compost temperature control is no more than 70 DEG C, the one time fermentation cycle is 5~ 10d, the secondary fermentation cycle is 13~45d.
The present invention a kind of kitchen waste compost conditioner is also provided, in parts by weight, its include 79~92 parts of matrix of becoming thoroughly decomposed, 2~8 parts of calcium phosphate, 0.5~3 part of iron chloride, neutral and/or 3~10 parts of alkaline pH adjusting agent, the matrix as above institute of becoming thoroughly decomposed State.Neutral and/or alkaline pH adjusting agent is specifically as follows plant ash, soda ash or quick lime etc..
Due to the implementation of above technical scheme, the present invention has the advantages that compared with prior art:
The method have the characteristics that by spent bleaching clay, the abundant recycling of agriculture and forestry organic waste material, for making kitchen garbage heap Fertile conditioner;Spent bleaching clay, agriculture and forestry organic waste material become thoroughly decomposed can not only reduce in addition raw material a large amount of grease, celluloses to compost in advance Influence, and a large amount of greases, cellulolytic enzyme that the process microorganism produces also are to speed up compost speed, improve compost quality The important substance of stability;The characterization of adsorption of main raw material(s) in conditioner, the solidification of trace element is made full use of to drop The volatile quantity of foul smell in low compost, reduces nitrogen loss, improves compost quality.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described in detail, and unreceipted condition is in embodiment The conventional condition in this area.When the consumption or dosage or content of material is addressed, unless stated otherwise, weight is referred both to.
Embodiment 1
This example provides a kind of kitchen waste compost conditioner, and its composition of raw materials is:85 parts of matrix of becoming thoroughly decomposed, 5 parts of calcium phosphate, chlorine Change 2 parts of iron, 8 parts of plant ash.
The preparation method of kitchen waste compost conditioner is as follows:
(1) matrix of becoming thoroughly decomposed is prepared:By spent bleaching clay, agriculture and forestry organic waste material, microbial bacterial agent in proportion 75:75:0.05 mixing, adjusts Section water content is for about 45%, and regulation C/N is for about 23;Compost fermentation at room temperature, uninterrupted turning, maintain heap body internal temperature 25~ 40 DEG C, maintain temperature 48h;Drying is not more than 20% to normal temperature to moisture content rapidly, obtains final product matrix of becoming thoroughly decomposed, wherein microbial bacterial agent It is 0.7 to press strain conidia powder mass ratio for bacillus coagulans and bacillus subtilis:1 mixing composition, strain conidia powder has Effect viable count is respectively 300~35,000,000,000/gram, purchased from Beijing middle peasant's natural resources biotechnology Co., Ltd;
(2) will become thoroughly decomposed matrix, calcium phosphate, iron chloride and plant ash by formula rate mixing obtain final product kitchen waste compost nurse one's health Agent.
Embodiment 2
This example provides a kind of kitchen waste compost conditioner, its substantially with embodiment 1, unlike, spent bleaching clay, agricultural are given up Gurry, the ratio of microbial bacterial agent three are 60:90:0.05.
Embodiment 3
This example provides a kind of kitchen waste compost conditioner, its substantially with embodiment 1, unlike, spent bleaching clay, agricultural are given up Gurry, the ratio of microbial bacterial agent three are 90:67:0.02.
Embodiment 4
This example provides a kind of kitchen waste compost conditioner, its substantially with embodiment 1, unlike, kitchen waste compost The composition of raw materials of conditioner is:92 parts of matrix of becoming thoroughly decomposed, 2 parts of calcium phosphate, 3 parts of iron chloride, 5 parts of plant ash.
Embodiment 5~8
The kitchen waste compost conditioner of embodiment 1~4 is respectively adopted, compost treatment is carried out to kitchen garbage, step is such as Under:
1. kitchen garbage is filtered into unnecessary moisture first, wherein plastics, big bone etc. will be not easily decomposed and be picked with crushed material Remove, by crushing material, particle diameter is less than or equal to 3cm;
2. compost conditioner and kitchen garbage are pressed 1:1 ratio mixes, and stirs;
3. regulation moisture content of material is 50%~60% (filtering water in can using step 1. to be adjusted);Regulation C/N It is 20~30:1;Adjusting pH is:7~8;
4. compost uses aerobic composting process, and ventilation and stirring are noted in composting process, and compost temperature should control to be no more than 70℃;The one time fermentation cycle is 6d, and the secondary fermentation cycle is 20d;
5. the compost can be made by organic fertilizer, soil conditioner etc. according to compost final product.
Embodiment 9~10
Using the kitchen waste compost conditioner of embodiment 1, compost is carried out according to different use ratio and fermentation period Treatment, wherein:
Embodiment 9:Compost conditioner presses 0.7 with kitchen garbage:1 ratio mixes, and the one time fermentation cycle is 10d, secondary hair The ferment cycle is 40d.
Embodiment 10:Compost conditioner presses 1.2 with kitchen garbage:1 ratio mixes, and the one time fermentation cycle is 5d, secondary hair The ferment cycle is 13d.
Situations such as observation embodiment 5~10 and corresponding control group gained composting process produce foul smell, and have to compost product Machine matter is tested with total nitrogen content, as a result referring to table 1.
The result of table 1 shows that the inventive method can be reduced and significantly improve kitchen waste compost generation foul smell situation, accelerate heap Fertile speed, improves compost quality, and compost product is adapted as organic fertilizer or soil conditioner, realizes resource reutilization.
The compost foul smell yield of table 1, rotten degree and organic matter, total nitrogen content situation
Note:
● control group 1,2 and 3 is the control group of embodiment 8, control group 1 only with kitchen waste compost, without conditioning Agent, compost time consistency;Control group 2,3 only adds the microbial bacterial agent and spent bleaching clay of respective amount as conditioner respectively;
● control group 9 is compareed with the composting conditionses of embodiment 9, only with kitchen waste compost, without conditioner, compost time Unanimously;
● control group 10 is compareed with the composting conditionses of embodiment 10, only with kitchen waste compost, without conditioner, during compost Between it is consistent;
● odor concentration represents that generation odor concentration is bigger in the more expression composting process of symbol with "+";
Rotten degree is measured with Polythene Bag method, and specific method loads Polythene Bag to take 100g compost product, drives air away After seal sack, 25 DEG C of placement 3d produce gas flow in measurement bag;"+" is more, and gas burst size is bigger, represents completely not rotten It is ripe, represented without "+" and become thoroughly decomposed completely.

Claims (10)

1. a kind of compost treatment method for food residues of utilization spent bleaching clay, it is characterised in that the method comprises the following steps:(1) Spent bleaching clay, agriculture and forestry organic waste material, microbial bacterial agent are mixed and carry out compost fermentation and obtains matrix of becoming thoroughly decomposed;(2) by kitchen garbage with Matrix of becoming thoroughly decomposed mixes and carries out the compost product that compost acquisition can be made into organic fertilizer and/or soil conditioner.
2. the compost treatment method for food residues of utilization spent bleaching clay according to claim 1, it is characterised in that described useless white The oil content of soil is 5wt%~15wt%.
3. the compost treatment method for food residues of utilization spent bleaching clay according to claim 1, it is characterised in that the agricultural Stalk and/or ornamental plant of the discarded object as produced by agricultural planting wither and fall or manually prune produced plant residue naturally Obtain after crushing, particle diameter is less than or equal to 3cm.
4. the compost treatment method for food residues of utilization spent bleaching clay according to claim 1, it is characterised in that micro- life It is 0.6~0.8 that thing microbial inoculum presses strain conidia powder mass ratio for bacillus coagulans and bacillus subtilis:1 mixing composition, it is described The living bacteria count of strain conidia powder is respectively 200~50,000,000,000/gram.
5. the compost treatment method for food residues of utilization spent bleaching clay according to claim 1, it is characterised in that step (1) Middle compost method is:Spent bleaching clay, agriculture and forestry organic waste material, microbial bacterial agent are mixed, regulation water content is 40~48%, adjusts C/N It is 21.8~24.4;Compost fermentation, uninterrupted turning, maintain 25~40 DEG C of heap body internal temperature at room temperature, maintain the temperature 18 ~48h;Air drying to moisture content is not more than 20%, obtains final product matrix of becoming thoroughly decomposed.
6. the compost treatment method for food residues of the utilization spent bleaching clay according to any one of claim 1 to 5 claim, Characterized in that, in step (1), the spent bleaching clay, agriculture and forestry organic waste material, the charged material weight ratio of microbial bacterial agent are 55~90:67 ~90:0.01~0.25.
7. the compost treatment method for food residues of utilization spent bleaching clay according to claim 1, it is characterised in that methods described Step (2) forward direction becomes thoroughly decomposed calcium phosphate, iron chloride and pH adjusting agent, matrix of becoming thoroughly decomposed, phosphorus is added in matrix afterwards to be additionally included in step (1) The weight ratio of sour calcium, calcium phosphate, iron chloride and pH adjusting agent is 79~92:2~8:0.5~3:3~10.
8. the compost treatment method for food residues of utilization spent bleaching clay according to claim 1, it is characterised in that described to become thoroughly decomposed Matrix is 0.7~1.2 with the weight ratio of kitchen garbage:1.
9. the compost treatment method for food residues of the utilization spent bleaching clay according to claim 1 or 7 or 8, it is characterised in that step Suddenly (2) use aerobic composting process, are embodied as follows:Kitchen garbage is filtered into unnecessary moisture first, will be wherein difficult point Solution and the object crushed are rejected, and crushing material to particle diameter is less than or equal into 3cm, and the matrix that then will become thoroughly decomposed mixes with kitchen garbage, Stir, regulation moisture content of material is 50%~60%;Regulation C/N is 20~30:1;Regulation pH is 7~8, carries out heap Fertilizer, compost temperature control is no more than 70 DEG C, and the one time fermentation cycle is 5~10d, and the secondary fermentation cycle is 13~45d.
10. a kind of kitchen waste compost conditioner, it is characterised in that:In parts by weight, comprising 79~92 parts of matrix, the phosphoric acid of becoming thoroughly decomposed 2~8 parts of calcium, 0.5~3 part of iron chloride, neutral and/or 3~10 parts of alkaline pH adjusting agent, the matrix such as claim 1 of becoming thoroughly decomposed Any one of 5.
CN201710080802.1A 2017-02-15 2017-02-15 Using the compost treatment method for food residues and kitchen waste compost conditioner of spent bleaching clay Pending CN106831240A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107500850A (en) * 2017-07-28 2017-12-22 安徽新创智能科技有限公司 A kind of Kkitchen food waste and straw hybrid composting method
CN108558580A (en) * 2018-07-09 2018-09-21 江西省农业科学院土壤肥料与资源环境研究所 A kind of spent bleaching clay base organic fertilizer and its preparation method and application
CN111704509A (en) * 2020-07-15 2020-09-25 北京市土肥工作站 High-carbon organic fertilizer and preparation method thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107500850A (en) * 2017-07-28 2017-12-22 安徽新创智能科技有限公司 A kind of Kkitchen food waste and straw hybrid composting method
CN108558580A (en) * 2018-07-09 2018-09-21 江西省农业科学院土壤肥料与资源环境研究所 A kind of spent bleaching clay base organic fertilizer and its preparation method and application
CN111704509A (en) * 2020-07-15 2020-09-25 北京市土肥工作站 High-carbon organic fertilizer and preparation method thereof

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