Comprehensive treatment technology of kitchen garbage

A comprehensive treatment technology for food waste, which is applied in the direction of organic fertilizers and climate change adaptation, can solve the problems of secondary environmental pollution, long processing time, and large floor area, and achieve strong controllability, reasonable process design, The effect of short production cycles

Inactive Publication Date: 2007-01-31
高鸿禄
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Problems solved by technology

The current treatment methods are mainly landfill, incineration and composting, etc., which occupy a large area, take

Method used

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  • Comprehensive treatment technology of kitchen garbage
  • Comprehensive treatment technology of kitchen garbage
  • Comprehensive treatment technology of kitchen garbage

Examples

Experimental program
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[0014] As shown in Figure 1: The process flow includes the following steps:

[0015] (1) Coarse sorting: heating the collected swill and cooking oil and other food wastes to remove large pieces of coarse and hard waste;

[0016] (2) Crushing treatment: The food waste after primary sorting is sent to the crusher and crushed into a slurry;

[0017] (3) Hydraulic separation: the slurry produced in step (2) is sent to a hydraulic separator for separation, and the medium coarse and fine solid particles are separated to obtain an emulsion containing fine particles;

[0018] (4) Centrifugal separation: the emulsion obtained in step (3) is separated first by solid-liquid and then oil-water two-stage high-speed centrifuges, so that the emulsion is separated from solid-liquid and oil-water;

[0019] (5) Oil refining: refining the crude oil obtained in step (4) to produce base oil for the manufacture of biodiesel and other chemical products;

[0020] (6) Transfer the solid phase obtained in ...

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Abstract

The present invention relates to a comprehensive treatment technique of restaurant kitchen garbage. Said technique includes the following steps: firstly, removing non-degradable components from said restaurant kitchen garbage, then breaking said garbage, making hydraulic separation to form cream liquor of organics. Said invention mainly includes three-stage high-speed centrifugal separation process, in which first stage centrifugal separation utilizes the cream liquor formed by hydraulic separator to produce solid dregs and oil-water mixture phase; second stage centrifugal separation utilizes the above-mentioned oil-water mixture phase to produce waste oil and clear water phase containing rich organics; the clear water phase and the above-mentioned cream liquor formed by blending solid dregs produced by first centrifugal separation are fed into fermentation tank, undergone the process of aerobic fermentation so as to form solid-liquid mixture, then the solid-liquid mixture is fed into third stage high-speed centrifugal machine to make solid-liquid separation to obtain heavy phase and light phase. Said heavy phase is solid fertilizer and the light phase is liquid biological organic fertilizer.

Description

technical field [0001] The invention relates to a comprehensive treatment technology for treating kitchen waste. Background technique [0002] Food waste refers to food residues, residues and waste oils produced by hotels, restaurants, restaurants and government agencies, troops, colleges, enterprises and institutions in the process of food processing, catering services, unit meals and other activities. Including: swill (swill), gutter oil, frying oil, and waste oil from the food processing industry. It is rich in starch, protein, short fiber, animal and vegetable oil, etc., and has a moisture content of 50-80%. However, due to problems in the production process and primary collection and storage, it also contains a large number of pathogenic microorganisms and sundries. In large and medium-sized cities in my country, about 0.8-1.2 tons of kitchen waste is produced per 10,000 people per day. Food waste is a mixture of various wastes with a wide variety of components. The ...

Claims

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Application Information

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IPC IPC(8): C05F9/04
CPCY02A40/20
Inventor 高鸿禄
Owner 高鸿禄
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