Distributed kitchen waste treatment process and system capable of reducing source

Abstract

The invention provides a source-reduced distributed kitchen waste treatment process and system, and belongs to the technical field of kitchen waste treatment.The process comprises the steps that a primary treatment device is arranged in a source unit for oil recovery; arranging a grease recovery center in the divided area, and sending all grease recovered by the primary treatment device in the divided area to the grease recovery center for treatment to obtain mixed oil; a plurality of kitchen waste treatment stations are arranged in the divided areas, kitchen waste separated by the primary treatment devices located in the divided areas is sent to the kitchen waste treatment stations nearby to be subjected to microbial degradation, and the organic bacterial fertilizer is obtained. According to the invention, the primary treatment device is arranged in a source unit, so that source reduction can be realized, and the operation cost can be reduced. And the grease recovery center is matched with the kitchen waste treatment stations, so that the kitchen waste in the divided areas can be effectively subjected to resourceful treatment, and resource recycling and resource maximization are realized.

Description

Technical Field

[0001] This invention belongs to the field of food waste treatment technology, specifically relating to a distributed food waste treatment process and system for source reduction. Background Technology

[0002] Traditional food waste treatment mainly relies on large-scale centralized processing facilities. These facilities have long construction and commissioning cycles, making it difficult to meet rapidly growing processing demands. Furthermore, centralized facilities are typically located far from waste-generating sites, increasing transportation distance and costs, and potentially causing secondary pollution during transport. Resource recovery is relatively low, with a significant amount of recyclable and valuable resources in food waste being wasted. Summary of the Invention

[0003] The present invention aims to at least solve one of the aforementioned technical problems existing in the prior art. To this end, in a first aspect, the present invention provides a distributed food waste treatment process for source reduction, which can solve the problems of high costs caused by long-distance waste transportation and low resource utilization.

[0004] Secondly, the present invention provides a distributed food waste treatment system for implementing the above-mentioned process to reduce waste at the source.

[0005] The distributed food waste treatment process for source reduction according to a first aspect of the present invention includes:

[0006] A primary processing unit is set up at the source unit to recover grease;

[0007] An oil recovery center is set up within the designated area, and all the oil recovered by the primary processing device within the designated area is sent to the oil recovery center for processing to obtain mixed oil.

[0008] Multiple food waste treatment stations are set up within the designated area. Food waste separated by the primary treatment device within the designated area is sent to the nearest food waste treatment station for microbial degradation to obtain organic fertilizer.

[0009] The distributed food waste treatment process for source reduction according to embodiments of the present invention has at least the following beneficial effects:

[0010] The process in this embodiment, by setting up a primary treatment device at the source unit, can achieve complete collection of grease from food waste, reducing waste at the source and helping to reduce operating costs. Furthermore, food waste treatment stations can be set up nearby based on the distribution of source units, reducing transportation costs, construction investment, energy consumption, and wastewater treatment costs. Setting up one grease recovery center in conjunction with multiple food waste treatment stations can effectively treat food waste within a designated area for resource recovery, achieving resource recycling and maximizing resource utilization.

[0011] According to some embodiments of the present invention, the primary treatment device processes the waste from the source unit according to the type of waste to obtain oil, solid sludge and wastewater respectively. The oil is collected and sent to the grease recycling center, the solid sludge is collected and sent to the kitchen waste treatment station, and the wastewater is discharged into the sewage pipe.

[0012] According to some embodiments of the present invention, the primary treatment device includes an oil sludge collector, a sludge collection tank, a solid sludge collection tank, and an oil-water collection tank;

[0013] When the source unit generates kitchen waste, it is collected and separated through the sludge collection bucket. The separated solid sludge is collected and stored through the solid sludge collection bucket, the separated oil is collected and stored through the oil-water collection bucket, and the wastewater is discharged into the sewage pipe.

[0014] When the source unit produces waste oil, it is collected and stored in the oil-water collection tank.

[0015] When the source unit generates wastewater from the stove, the oil is filtered through an oil collector and collected in an oil-water collection tank before being discharged into the sewage pipe.

[0016] According to some embodiments of the present invention, the source unit includes food processing enterprises, canteens, restaurants, and banquet venues.

[0017] According to some embodiments of the present invention, the oil recovery center first heats the oil and water, then extracts the oil through separation, and finally produces biodiesel.

[0018] According to some embodiments of the present invention, the oil recovery center is equipped with a heating tank and a three-phase separator, wherein the oil and water are heated by the heating tank and the oil is extracted by the three-phase separator.

[0019] According to some embodiments of the present invention, the kitchen waste treatment station is equipped with a microbial degradation device, and organic fertilizer is obtained through the microbial degradation device, while the wastewater generated by the degradation is discharged into the sewage pipe.

[0020] According to some embodiments of the present invention, the grease collected by the multiple source units is periodically and uniformly collected and transported to the grease recycling center by mobile collection equipment.

[0021] According to some embodiments of the present invention, the oil recycling center first obtains industrial-grade blended oil and then prepares biodiesel.

[0022] According to a second aspect of the present invention, a distributed food waste treatment system for source reduction is used to implement the distributed food waste treatment process for source reduction in any of the above embodiments.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and some of these additional aspects and advantages will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 This is a schematic diagram of a distributed food waste treatment process for source reduction in this invention. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0028] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0030] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] Combination Figure 1 The present invention proposes a distributed food waste treatment process for source reduction, comprising:

[0032] A primary processing unit is set up at the source to recover grease;

[0033] A grease recovery center is set up within the designated area, and all the grease recovered by the primary processing unit within the designated area is sent to the grease recovery center for processing to obtain mixed oil.

[0034] Multiple food waste treatment stations are set up within the designated area. Food waste separated by the primary treatment unit within the designated area is sent to the nearest food waste treatment station for microbial degradation to obtain organic fertilizer.

[0035] It is understandable that the types of waste generated vary depending on the type of source unit. For example, the kitchen waste generated by restaurants includes both solid residue and waste oil, while the waste generated by fried food processing plants is mainly waste oil. The primary treatment device set in this embodiment can mainly realize the recovery of oil and the separation of solid residue. The oil is then sent to the oil recovery center for centralized treatment, and the solid residue is sent to the kitchen waste treatment station for centralized treatment.

[0036] The process in this embodiment, by setting up a primary processing device at the source, can achieve the complete collection of grease from kitchen waste, thus reducing the amount of grease at the source and helping to reduce operating costs.

[0037] Furthermore, based on the distribution of the source units, food waste treatment stations can be set up nearby, reducing transportation costs, helping to reduce construction investment, energy consumption, and sewage treatment costs.

[0038] Setting up an oil recycling center, in conjunction with multiple food waste treatment stations, can effectively process food waste within a designated area, achieving resource recycling and maximizing resource utilization.

[0039] The actual size of the designated area can be set according to the processing capacity of the grease recycling center, so as to ensure that the grease recycling center can process grease in a timely and effective manner within the designated area.

[0040] The number and location of food waste treatment stations can be determined based on the distribution density of the source units and the amount of waste generated by them. For example, if the source units are factories or restaurants with large production volumes, they will generate more food waste, so more food waste treatment stations should be set up accordingly, or the food waste treatment stations should be prioritized to be set up in areas near such factories or restaurants.

[0041] In some embodiments of the present invention, the primary treatment device processes the waste according to the type of waste from the source unit to obtain oil, solid sludge and sewage respectively. The oil is collected and sent to the grease recycling center, the solid sludge is collected and sent to the kitchen waste treatment station, and the sewage is discharged into the sewage pipe.

[0042] Specifically, the primary treatment device includes, but is not limited to, an oil sludge collector, a sludge collection tank, a solid sludge collection tank, and an oil-water collection tank.

[0043] When the source unit generates kitchen waste, it is collected and separated through the sludge collection bin. The separated solid sludge is collected and stored through the solid sludge collection bin, and the separated oil is collected and stored through the oil and water collection bin. The sewage is discharged into the sewage pipe.

[0044] When waste oil is generated at the source, it is collected and stored in oil-water collection tanks.

[0045] When the source unit generates wastewater from the stove, the oil is filtered through an oil collector and collected in an oil-water collection bucket before being discharged into the sewage pipe.

[0046] The oil sludge collector utilizes the principle of oil-water stratification to collect oil sludge, and can employ known structures from existing technologies.

[0047] In some embodiments, the oil collector is provided with a separation chamber, and an overflow pipe is vertically installed inside the separation chamber. The upper end of the overflow pipe is connected to the outside at the top of the separation chamber, and the lower end of the overflow pipe extends to near the bottom of the separation chamber and is provided with an overflow port. The separation chamber is also provided with a water inlet pipe.

[0048] During operation, oil is introduced through the inlet pipe. Due to the oil-water separation process, the grease is located on the upper layer of the water. As the oil is introduced, it accumulates on the upper layer, and the wastewater is gradually squeezed out through the overflow pipe, thus collecting the grease. After the collection is complete, all the grease in the separation chamber can be poured out into the oil-water collection tank.

[0049] In some embodiments of the present invention, the source unit includes, but is not limited to, food processing enterprises, canteens, restaurants, and banquet venues. Restaurants include Chinese restaurants, Western restaurants, fast food restaurants, etc.

[0050] In practical applications, the primary treatment devices may vary depending on the source unit, and it is not required that every source unit be equipped with an oil sludge collector, a sludge collection bucket, a solid sludge collection bucket, and an oil-water collection bucket.

[0051] In some embodiments of the present invention, the oil recovery center first heats the oil and water, then extracts the oil through separation, and finally produces biodiesel.

[0052] Specifically, the oil recovery center is equipped with a heating tank and a three-phase separator. The heating tank heats the oil and water, and the three-phase separator extracts the oil. The specific processing technology can be referred to relevant existing technologies, and will not be described in detail here.

[0053] The oil recycling center uses a three-phase separator to first obtain industrial-grade mixed oil, which is then separately processed into biodiesel, rather than directly producing biodiesel through the three-phase separator.

[0054] To ensure operational efficiency, grease collected from multiple source units is regularly collected and transported to the grease recycling center using mobile collection equipment. For example, a tool cart is used to transport the oil and water collection barrels from various source units to the grease recycling center every three days, where they are poured into the heating tank.

[0055] After pouring the contents into the heating tank, if the quantity is small, you can preheat it first, and then start the actual heating once the quantity is reached.

[0056] In some embodiments of the present invention, the kitchen waste treatment station is equipped with a microbial degradation device, and organic fertilizer is obtained through the microbial degradation device, while the wastewater generated from the degradation is discharged into the sewage pipe.

[0057] This microbial degradation device can also be set up with reference to relevant existing technologies, which will not be described in detail here.

[0058] In practical applications, food waste treatment stations can be set up in sanitation stations, public toilets, garbage transfer stations, etc., utilizing existing public facilities to provide basic conditions, which can save a lot of costs and construction time.

[0059] In addition, embodiments of the present invention also propose a distributed food waste treatment system for source reduction, used to implement the distributed food waste treatment process for source reduction in any of the above embodiments.

[0060] Understandably, this source reduction distributed food waste treatment system includes:

[0061] Primary processing unit, which is located at the source unit;

[0062] Multiple food waste treatment stations are set up in designated areas according to the distribution density of the source units. The food waste treatment stations are used to degrade the solid residue in food waste through microorganisms to obtain organic fertilizer.

[0063] An oil recycling center is used to process grease from food waste to obtain mixed oil.

[0064] It is understood that the present invention has the following advantages:

[0065] 1. Reducing food waste at the source can reduce operating and construction costs;

[0066] 2. Waste oil and solid residue in kitchen waste are separated and centrally processed. Waste oil is made into biodiesel, and kitchen waste is used to obtain organic microbial fertilizer, both of which can be sold externally. Stable operation of kitchen waste treatment can be achieved without the need for relevant financial subsidies, and certain economic benefits can be obtained.

[0067] 3. Distributed design of food waste treatment stations can reduce transportation costs, construction investment, energy consumption, and wastewater treatment costs;

[0068] 4. It can maximize the use of resources.

[0069] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A distributed food waste treatment process for source reduction, characterized in that, include: A primary processing unit is set up at the source unit to recover grease; An oil recovery center is set up within the designated area, and all the oil recovered by the primary processing device within the designated area is sent to the oil recovery center for processing to obtain mixed oil. Multiple food waste treatment stations are set up within the designated area. Food waste separated by the primary treatment device within the designated area is sent to the nearest food waste treatment station for microbial degradation to obtain organic fertilizer.

2. The distributed food waste treatment process for source reduction according to claim 1, characterized in that, The primary treatment device processes the waste according to the type of waste from the source unit to obtain oil, solid sludge and wastewater respectively. The oil is collected and sent to the grease recycling center, the solid sludge is collected and sent to the kitchen waste treatment station, and the wastewater is discharged into the sewage pipe.

3. The distributed food waste treatment process for source reduction according to claim 2, characterized in that, The primary treatment device includes an oil sludge collector, a sludge collection tank, a solid sludge collection tank, and an oil-water collection tank; When the source unit generates kitchen waste, it is collected and separated through the sludge collection bucket. The separated solid sludge is collected and stored through the solid sludge collection bucket, the separated oil is collected and stored through the oil-water collection bucket, and the wastewater is discharged into the sewage pipe. When the source unit produces waste oil, it is collected and stored in the oil-water collection tank. When the source unit generates wastewater from the stove, the oil is filtered through an oil collector and collected in an oil-water collection tank before being discharged into the sewage pipe.

4. The distributed food waste treatment process for source reduction according to claim 1, characterized in that, The source entities include food processing enterprises, canteens, restaurants, and banquet venues.

5. The distributed food waste treatment process for source reduction according to claim 1, characterized in that, The oil recovery center first heats the oil and water, then extracts the oil through separation, and finally produces biodiesel.

6. The distributed food waste treatment process for source reduction according to claim 5, characterized in that, The oil recovery center is equipped with a heating tank and a three-phase separator. The heating tank heats the oil and water, and the three-phase separator extracts the oil.

7. The distributed food waste treatment process for source reduction according to claim 1, characterized in that, The food waste treatment station is equipped with microbial degradation equipment, which produces organic fertilizer, and the wastewater generated during degradation is discharged into the sewage pipe.

8. The distributed food waste treatment process for source reduction according to claim 1, characterized in that, The grease collected by the multiple source units is periodically collected and transported to the grease recycling center via mobile collection equipment.

9. The distributed food waste treatment process for source reduction according to claim 1, characterized in that, The oil recycling center first obtains industrial-grade blended oil, and then produces biodiesel.

10. A distributed food waste treatment system for source reduction, characterized in that, Used to implement the distributed food waste treatment process for source reduction as described in any one of claims 1 to 9.

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