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Method for preparing biological protein feed from food wastes

A technology for biological protein feed and kitchen waste, applied in animal feed, animal feed, application, etc., can solve the problems of difficulty in collection, transportation and treatment of kitchen waste, pollution of surface water and groundwater, and environmental pollution, etc. Harmful and resourceful, risk reduction, high salt and animal fat removal effects

Active Publication Date: 2011-04-06
BMEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] (1) The chemical composition is complex, mainly including water, inorganic salts, organic acids and various macromolecular organic compounds
[0005] (2) Rich in organic matter, microorganisms are easy to grow and reproduce, causing food waste to deteriorate and pollute the environment
[0006] (3) The water content is as high as 80%, which brings certain difficulties to the collection, transportation and treatment of kitchen waste, and the leachate of kitchen waste pollutes surface water and groundwater through surface runoff and infiltration
However, most of the processes still remain in the process of sorting, crushing, dehydrating, and drying food waste and directly processing it into feed, while ignoring the potential risk of "cannibalism from the same source"
At the same time, the recovery of oil from kitchen waste is not considered, so that a large amount of waste cooking oil is returned to the food chain in the form of "gutter oil", which has great potential safety hazards

Method used

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  • Method for preparing biological protein feed from food wastes
  • Method for preparing biological protein feed from food wastes

Examples

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Effect test

Embodiment 1

[0021] With reference to accompanying drawing, the detailed steps of the method that the present invention utilizes kitchen waste to prepare biological protein feed are as follows:

[0022] 1. Pretreatment, the food waste is transported to the waste disposal point in a professional airtight garbage bin, and then sent to the pretreatment system after weighing, including the sorting process, crushing and corresponding screw conveying steps; the sorting process includes mechanical sorting And manual sorting, mainly to remove plastic bags, chopsticks, glass products, ironware and other impurities. The crusher crushes the food waste, which is convenient for subsequent pump transportation and ensures the uniformity of the treatment process.

[0023] 2. Moist heat sterilization treatment, pump the pretreated kitchen waste into the damp heat reaction kettle, and carry out high temperature damp heat cooking at 105-135°C.

[0024] 3. Dehydration and deoiling, the materials after moist ...

Embodiment 2

[0030] Embodiment 2: a kind of method for preparing biological protein feed from food waste, comprises the following steps and carries out:

[0031] 1. Collection and transportation: The collection and transportation of food waste is mainly divided into two parts: oil collection and transportation and solid food waste collection and transportation. The grease part and solid matter in the kitchen waste are collected separately and transported separately.

[0032] After being collected and transported, the oil can be sold to a special oil recovery unit as a raw material for fuel oil production, or it can configure its own production equipment to produce biodiesel.

[0033] Rear-loading garbage trucks are used for the collection, transportation and input systems of food waste solid matter. This model has a fully enclosed structure, which can prevent environmental pollution caused by the outflow of food waste and the overflow of stench. After centralized collection and transport...

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Abstract

The invention relates to a method for preparing a biological protein feed from food wastes, which belongs to the technical field of hazard-free treatment, recycling treatment and disposal of solid wastes. The method comprises the process steps of pretreatment, moist heat sterilization, dehydration, microbial aerobic fermentation, drying integration and the like of the food wastes. The preparationmethod has the following advantages of: (1) thoroughly killing harmful microorganisms in the food wastes; (2) effectively removing salt and fat in the food wastes to solve the problem of high salt and animal fat in the food wastes; (3) transforming animal-based protein into micro-molecular protein and microbial mycoprotein through microbial fermentation to ensure that the animal-based protein canbe absorbed by livestock more easily; and (4) reducing the risk of homologous phase foods, and realizing the hazard-free treatment and the recycling of the food wastes.

Description

technical field [0001] The invention relates to a method for preparing biological protein feed from kitchen waste, and belongs to the technical field of harmless solid waste, resource treatment and disposal. Background technique [0002] With the development of economy and the acceleration of urbanization, the discharge of municipal solid waste is increasing, and the proportion of kitchen waste is increasing day by day, accounting for 37% to 62% of municipal solid waste. It is conservatively estimated that the annual output of urban kitchen waste in my country is no less than 60 million tons. [0003] Food waste comes from human food, so it is determined that food waste is quite different from general household waste and industrial production waste, and has its own characteristics: [0004] (1) The chemical composition is complex, mainly including water, inorganic salts, organic acids and various macromolecular organic compounds. [0005] (2) It is rich in organic matter, ...

Claims

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Application Information

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IPC IPC(8): A23K1/10A23K10/26A23K10/37
CPCY02P60/87
Inventor 许靖平张继琳李来庆王敬贤
Owner BMEI
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