CN102744242A - Disposal process of kitchen garbage - Google Patents
Disposal process of kitchen garbage Download PDFInfo
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- CN102744242A CN102744242A CN2012102671976A CN201210267197A CN102744242A CN 102744242 A CN102744242 A CN 102744242A CN 2012102671976 A CN2012102671976 A CN 2012102671976A CN 201210267197 A CN201210267197 A CN 201210267197A CN 102744242 A CN102744242 A CN 102744242A
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Abstract
The invention discloses a disposal process of kitchen garbage, which comprises the following steps of: (a) solid-liquid separation: carrying out solid-liquid separation on the kitchen garbage to divide the kitchen garbage into solid waste and liquid waste; (b) pulverization and pulping: pulverizing the solid waste and then pulping to obtain slurry; and (c) anaerobic digestion: carrying out anaerobic digestion reaction on the slurry. According to the disposal process of the kitchen garbage, which is disclosed by the embodiment of the invention, the solid waste and the liquid waste are obtained after the kitchen garbage is subjected to the solid-liquid separation, the solid waste is used as a raw material of the anaerobic digestion to be subjected to innocent treatment, and methane, methane liquid fertilizer, methane residue fertilizer and the like can be obtained for comprehensive utilization, so not only the pollution to the environment is eliminated, but also the resource comprehensive utilization is realized.
Description
Technical field
The present invention relates to the treatment process in technology of garbage disposal field, particularly a kind of changing food waste.
Background technology
People can produce various discarded objects in life, production.Wherein the changing food waste of generation such as catering industry, unit dining room is handled very difficulty, and a lot of lawless persons are used for refining waste oil, serious harm people's health.Water content reaches 70-90% (weight ratio) in the changing food waste, and mostly other materials are food waste thing, mashed dish, grease, plastics, wooden chopsticks, glass, metal, porcelain, shell etc., and composition is very complicated.Processing method commonly used is oil removing, dehydration back landfill, and floor space is big, produces peculiar smell, germ, causes secondary pollution.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or provides a kind of useful commerce to select at least.For this reason, one object of the present invention is to propose the treatment process of the innoxious comprehensive utilization of a kind of changing food waste.
Treatment process according to the changing food waste of the embodiment of the invention comprises the steps: a) Separation of Solid and Liquid, and changing food waste is carried out Separation of Solid and Liquid so that said changing food waste is divided into solid material and liquid material; B) pulverize, pull an oar, said solid material is pulverized the back making beating to obtain slip; And c) anaerobic digestion is carried out the anaerobic digestion reaction to said slip.
Treatment process according to the changing food waste of the embodiment of the invention; Changing food waste is carried out obtaining solid material and liquid material after the Separation of Solid and Liquid; With wherein solid material as the raw material of anaerobic digestion carrying out harmless treatment, and can obtain biogas, natural pond liquid fertilizer and natural pond slag fertilizer etc. and fully utilize.Both eliminated pollution to environment, but comprehensive utilization of resources again.
In addition, the treatment process of changing food waste according to the above embodiment of the present invention can also have following additional technical characterictic:
According to an example of the present invention, the treatment process of said changing food waste carries out the preliminary election separation steps to said changing food waste before also being included in Separation of Solid and Liquid.
According to an example of the present invention, the step of before the treatment process of said changing food waste also is included in and pulverizes said solid material being carried out magnetic separation.
According to an example of the present invention, the treatment process of said changing food waste also is included in pulverizes the preceding step of liquid to prepare burden that said solid material is added predetermined ratio of back making beating.
According to an example of the present invention, the treatment process of said changing food waste also comprises the step of the said slip that obtains after the making beating being carried out high-temperature sterilization.
Advantageously, the sterilising temp of said high-temperature sterilization step is more than 70 ℃, and sterilization time is 1 hour.
According to an example of the present invention, the treatment process of said changing food waste also comprises the step of the said slip behind the high-temperature sterilization being carried out water-oil separating.
According to an example of the present invention, the treatment process of said changing food waste also comprises the step of said liquid material being carried out desanding.
According to an example of the present invention, the treatment process of said changing food waste also comprises the step of the liquid material after the desanding being carried out water-oil separating.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the flow chart of the treatment process of changing food waste according to an embodiment of the invention; With
Fig. 2 is the flow chart of the treatment process of changing food waste according to another embodiment of the present invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, be intended to be used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention; It will be appreciated that; The orientation of indications such as term " " center ", " vertically ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise " or position relation are for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the present invention; rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more a plurality of these characteristics can be shown or impliedly comprised to the characteristic that is limited with " first ", " second " clearly.In description of the invention, the implication of " a plurality of " is two or more, only if clear and definite concrete qualification is arranged in addition.
In the present invention, only if clear and definite regulation and qualification are arranged in addition, broad understanding should be done in terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected, and also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can understand above-mentioned term concrete implication in the present invention as the case may be.
In the present invention; Only if clear and definite regulation and qualification are arranged in addition; First characteristic second characteristic it " on " or D score can comprise that first and second characteristics directly contact, can comprise that also first and second characteristics are not directly contacts but through the contact of the additional features between them.And, first characteristic second characteristic " on ", " top " and " above " comprise first characteristic directly over second characteristic and oblique upper, or only represent that the first characteristic level height is higher than second characteristic.First characteristic second characteristic " under ", " below " and " below " comprise first characteristic under second characteristic with tiltedly below, or only represent that the first characteristic level height is less than second characteristic.
Describe treatment process in detail with reference to accompanying drawing below according to the changing food waste of the embodiment of the invention.
As depicted in figs. 1 and 2, the treatment process according to the changing food waste of the embodiment of the invention comprises the steps:
A) Separation of Solid and Liquid is carried out Separation of Solid and Liquid so that said changing food waste is divided into solid material and liquid material to changing food waste.
B) pulverize, pull an oar, said solid material is pulverized the back making beating to obtain slip.
C) anaerobic digestion is carried out the anaerobic digestion reaction to said slip.
Treatment process according to the changing food waste of the embodiment of the invention; Changing food waste is carried out obtaining solid material and liquid material after the Separation of Solid and Liquid; With wherein solid material as the raw material of anaerobic digestion carrying out harmless treatment, and can obtain biogas, natural pond liquid fertilizer and natural pond slag fertilizer etc. and fully utilize.Both eliminated pollution to environment, but comprehensive utilization of resources again.
As shown in Figure 2, according to an example of the present invention, before Separation of Solid and Liquid, said changing food waste is carried out preliminary election and separate.Thus, can from changing food waste, isolate the big material that is difficult to carry out anaerobic digestion such as edible oil vessel, plastic tub, beverage bottle, apothecary jar, porcelain basin, china bowl etc. earlier, so that the anaerobic digestion reaction is carried out smoothly.
Advantageously, according to one embodiment of present invention, before solid material is pulverized, solid material is carried out magnetic separation.Thus, can in solid material, isolate metal objects such as pop can, cutlery, avoid in follow-up pulping process, equipment being caused damage.
Further, according to a concrete example of the present invention, the liquid that before solid material being pulverized the back making beating, solid material is added predetermined ratio is to prepare burden.Thus, can make the production efficiency that pulping process is more smooth, improve pulping process.
Need to prove that at this pulping process can be accomplished by automatic separation pulping system.Automatically separate the pulping system and separate light materials impurity in the solid material (plastics, fabric, wood etc.) and heavy substance impurity (sandstone, cullet, shell, broken ceramics etc.) earlier, mix making beating then, form slip.This equipment is simple to operation, moves energy-efficiently, has realized Automatic Control, not only can high efficiency separation go out the various impurity that are not useable for Anaerobic Digestion, and can accomplish solid-liquid mix, broken, stir functions such as pulping.This is understandable for the person of ordinary skill of the art.
Further, according to a specific embodiment of the present invention, can carry out high-temperature sterilization to the slip that obtains after the making beating.Advantageously, the sterilising temp of high-temperature sterilization is more than 70 ℃, and sterilization time is 1 hour.Thus, can kill the bacterium in the slip, better changing food waste accomplished harmless treatment.
Further, according to some embodiments of the present invention, the slip behind the high-temperature sterilization is carried out water-oil separating.Thus, can reclaim the grease in the slip and utilizing again.
Advantageously, according to examples more of the present invention, the step of liquid material being carried out desanding.Thus, can remove in the liquid material such as impurity such as sandstone, cullet, broken ceramics.Further, the liquid material after the desanding is carried out the step of water-oil separating.Thus, can further reclaim the grease in the changing food waste and utilizing again.
Come the treatment process according to the changing food waste of the embodiment of the invention is described below in conjunction with concrete treatment facility.
It is understandable that; The equipment that utilization is handled changing food waste according to the treatment process of the changing food waste of the embodiment of the invention can comprise material storage container, ragging equipment, solid-liquid separating equipment, liquid cell, desander, first oil water separator, water supply tank, magnetic separator, pulverizer, tuner, separate pulping system, high-temperature sterilization system, second oil water separator, heat exchanger, slurries scratch pool, regulating reservoir, anaerobic digestion reaction vessel etc. automatically, and is as shown in Figure 2.
The changing food waste that comes from collecting everywhere is put into material storage container, carries out preliminary election at material storage container and separates.Isolate big material (like big material such as edible oil vessel, plastic tub, beverage bottle, apothecary jar, porcelain basin, china bowl) through the preliminary election separation equipment.
Then changing food waste is carried out Separation of Solid and Liquid to be divided into solid material and liquid material.Solid material after the separation is isolated the ironware (pop can, cutlery etc.) in the solid material through magnetic separator.Getting into pulverizer then pulverizes.Liquid material after the separation heats the back through the heat exchanger circulation and gets into desander, removes impurity in the liquid material (sandstone, cullet, broken ceramics etc.).Liquid material gets into first oil water separator and carries out water-oil separating then, and the grease after the separation is recycled, and the liquid after the separation gets into water supply tank.The solid material after the pulverizing and the liquid of water supply tank get into tuner in proportion and prepare burden, and the material for preparing gets into and separates the pulping system automatically.
Automatically separating the pulping system separates light materials impurity in the solid material (plastics, fabric, wood etc.) and heavy substance impurity (sandstone, cullet, shell, broken ceramics etc.) earlier.To solid material mixing making beating, form slip then.This equipment is simple to operation, moves energy-efficiently, has realized Automatic Control, not only can high efficiency separation go out variously to be not useable for the impurity that biofermentation is handled, and can accomplish solid-liquid mix, broken, stir functions such as pulping.
Slip gets into next link and carries out the high-temperature sterilization system.This system heats material through the rapid heater of charging aperture, once is heated to more than 70 ℃, gets in the jar and is incubated sterilization in 1 hour.Be provided with heat-insulation layer outside jar, thermal losses is very little.Be provided with attemperating unit in jar, be lower than 70 ℃ like excess temperature, the circulatory system starts the heating that circulates.The circulatory system can realize agitating function.
Slip behind the high-temperature sterilization carries out oil removing through second oil water separator, and the grease after the separation is recycled, and slip gets into scratch pool.
Slip and the liquid cell after the Separation of Solid and Liquid in the scratch pool carry out heat exchange through heat exchanger, and liquid cell heats up, and scratch pool is lowered the temperature.
Slip in the scratch pool after the cooling gets into regulating reservoir and allocates, and gets into anaerobic digestion reaction vessel then and carries out anaerobic reaction, forms methane, natural pond liquid fertilizer and natural pond slag be fertile.
According to the treatment process of the changing food waste of the embodiment of the invention, through changing food waste is carried out innoxious comprehensive utilization, changing food waste basically can the catapepsis utilization.Isolated most of material can be recycled.Sandstone, cullet, broken ceramics etc. can landfills.Reclaim grease and can refine into biodiesel or gasoline.Biogas can generate electricity or pass through and purify the back as combustion gas, power fuel through biogas generator.Natural pond liquid after the anaerobic digestion can suit measures to local conditions to utilize or process biological organic fertilizer through solid after the Separation of Solid and Liquid as liquid is fertile, liquid be used to spray plantation or qualified discharge after treatment.Both eliminated pollution to environment, but comprehensive utilization of resources again.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above; It is understandable that; The foregoing description is exemplary; Can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change the foregoing description under the situation that does not break away from principle of the present invention and aim within the scope of the invention, modification, replacement and modification.
Claims (9)
1. the treatment process of a changing food waste is characterized in that, comprises the steps:
A) Separation of Solid and Liquid is carried out Separation of Solid and Liquid so that said changing food waste is divided into solid material and liquid material to changing food waste;
B) pulverize, pull an oar, said solid material is pulverized the back making beating to obtain slip; With
C) anaerobic digestion is carried out the anaerobic digestion reaction to said slip.
2. the treatment process of changing food waste according to claim 1 is characterized in that, also is included in said changing food waste to be carried out the preliminary election separation steps before the Separation of Solid and Liquid.
3. the treatment process of changing food waste according to claim 1 is characterized in that, also is included in the step of before pulverizing said solid material being carried out magnetic separation.
4. the treatment process of changing food waste according to claim 1 is characterized in that, also is included in to pulverize the preceding step of liquid to prepare burden that said solid material is added predetermined ratio of back making beating.
5. the treatment process of changing food waste according to claim 1 is characterized in that, also comprises the step of the said slip that obtains after the making beating being carried out high-temperature sterilization.
6. the treatment process of changing food waste according to claim 5 is characterized in that, the sterilising temp of said high-temperature sterilization step is more than 70 ℃, and sterilization time is 1 hour.
7. the treatment process of changing food waste according to claim 5 is characterized in that, also comprises the step of the said slip behind the high-temperature sterilization being carried out water-oil separating.
8. the treatment process of changing food waste according to claim 1 is characterized in that, also comprises the step of said liquid material being carried out desanding.
9. the treatment process of changing food waste according to claim 8 is characterized in that, also comprises the step of the liquid material after the desanding being carried out water-oil separating.
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| CN2012102671976A CN102744242A (en) | 2012-07-31 | 2012-07-31 | Disposal process of kitchen garbage |
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| CN2012102671976A CN102744242A (en) | 2012-07-31 | 2012-07-31 | Disposal process of kitchen garbage |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103333798A (en) * | 2013-07-17 | 2013-10-02 | 杨解定 | Anaerobic digestion processing device for kitchen waste |
| CN104259179A (en) * | 2014-09-12 | 2015-01-07 | 海宁市绿洲环保能源有限公司 | Kitchen waste treatment process |
| CN109013045A (en) * | 2018-06-28 | 2018-12-18 | 长沙中联重科环境产业有限公司 | Rubbish desanding system and desanding method |
| CN109759424A (en) * | 2019-02-26 | 2019-05-17 | 刘西成 | A kind of method for organic waste disposal |
| CN111760871A (en) * | 2020-05-14 | 2020-10-13 | 浙江青草地环境科技有限公司 | On-site treatment method of kitchen waste |
| CN113458123A (en) * | 2021-07-26 | 2021-10-01 | 中国环境保护集团有限公司 | Kitchen waste pretreatment system and method |
| CN114042738A (en) * | 2021-10-20 | 2022-02-15 | 湖北天宜机械股份有限公司 | Rapid and efficient comprehensive utilization and treatment method for recycling kitchen waste |
| CN114101283A (en) * | 2021-11-29 | 2022-03-01 | 上海康恒环境股份有限公司 | Kitchen waste treatment process and device |
| CN116251812A (en) * | 2023-05-16 | 2023-06-13 | 国家电投集团科学技术研究院有限公司 | Kitchen waste treatment system and method |
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| CN114101283A (en) * | 2021-11-29 | 2022-03-01 | 上海康恒环境股份有限公司 | Kitchen waste treatment process and device |
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Application publication date: 20121024 |