System for preparing biogas through cooperative treatment of kitchen waste and livestock and poultry manure and preparation method

A technology of biological natural gas and kitchen waste, applied in waste treatment, solid waste removal, etc., can solve the problems of not being able to meet the capacity of large-scale anaerobic fermentation treatment, to avoid odor emission, ensure safety, and wide adaptability of raw materials Effect

Active Publication Date: 2021-01-08
POWERCHINA XIBEI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a system and preparation method for synergistically processing food waste and livestock and poultry manure to prepare bio-natural gas. Through this system, food waste and livestock and poultry manure can be simultaneously processed in a certain proportion, solving the problem of Single food waste or livestock and poultry manure in cities and towns cannot meet the production capacity of large-scale anaerobic fermentation treatment. At the same time, the system realizes the production of biogas and organic fertilizer from biogas, so that the biogas and digestive juice produced by the system can be used. , to maximize economic benefits

Method used

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  • System for preparing biogas through cooperative treatment of kitchen waste and livestock and poultry manure and preparation method
  • System for preparing biogas through cooperative treatment of kitchen waste and livestock and poultry manure and preparation method
  • System for preparing biogas through cooperative treatment of kitchen waste and livestock and poultry manure and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0055] Pour 100t of food waste with a solid content of 15% into the food waste silo, and measure it through a weighing and measuring device; send the food waste to the pulping separator for pulping through the screw conveyor installed at the outlet of the silo . Separate the food waste from foreign objects (such as plastics, fruit cores, bones, etc.) through the pulping separator, crush and pulp the food waste after separating the foreign objects, and then use the pump to send the food waste slurry to the oil removal system Heat to remove oil. Heat the temperature of the material to 60°C to 70°C, and separate the grease in the slurry through a centrifugal separation device. The remaining food waste slurry after oil removal is pumped to the mixing silo to be mixed with livestock and poultry manure. The slurry output from the oil removal system is measured by a flow meter, and the output volume is recorded for accurate batching in the mixing silo.

[0056] Send 950t of chicke...

Embodiment 2

[0060] Pour 180t of food waste with a solid content of 15% into the food silo, and measure it through a weighing and measuring device; send the food waste to the pulping separator for pulping through the screw conveyor installed at the outlet of the silo. Separate the food waste from foreign objects (such as plastics, fruit cores, bones, etc.) through the pulping separator, crush and pulp the food waste after separating the foreign objects, and then use the pump to send the food waste slurry to the oil removal system Heat to remove oil. Heat the temperature of the material to 60°C to 70°C, and separate the grease in the slurry through a centrifugal separation device. The remaining food waste slurry after oil removal is pumped to the mixing silo to be mixed with livestock and poultry manure; 600t of livestock and poultry manure mixture with a solid content of 10% is poured into the mixing silo and mixed with the food and kitchen slurry to The TS concentration is 11.2%, the C / N...

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Abstract

The invention relates to a system for preparing biogas through cooperative treatment of kitchen waste and livestock and poultry manure and a preparation method thereof. The system comprises a kitchenwaste pretreatment system, a treated kitchen waste and livestock and poultry manure mixing system, an anaerobic fermentation system, a biogas purification system and a system for preparing an organicfertilizer from digestive juice after anaerobic fermentation. The preparation method comprises the following steps of mixing the treated kitchen waste with livestock and poultry manure for anaerobic fermentation, then purifying methane, dehydrating, desulfurizing, and decarbonizing so as to prepare the biogas. According to the system, the kitchen waste and the livestock and poultry manure can be cooperatively treated so as to prepare the biogas, anaerobic fermentation biogas slurry and biogas residues are effectively used for producing the organic fertilizer, the whole system is free of pollutant emission, and resource utilization of organic waste is really realized.

Description

technical field [0001] The invention belongs to the technical field of anaerobic fermentation comprehensive treatment of kitchen waste and livestock and poultry manure, in particular to a system for synergistic processing of food waste and livestock and poultry manure to prepare bio-natural gas, and also relates to a food waste and livestock and poultry manure Synergistic processing to produce bio-natural gas method. Background technique [0002] my country's catering industry is well developed, and it is a world-renowned catering power. With the rapid growth of my country's economy and the continuous improvement of people's living standards, the catering industry has developed rapidly in recent years, and the output of food waste has also increased day by day. Food waste has the characteristics of high moisture content, high organic matter content, perishable deterioration, and breeding of flies. If it is not treated in a timely and effective manner, it will cause water po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00Y02W30/20Y02E50/30
Inventor 辛乾龙罗欣欣李文涛高丽娟王美净柴宝华杨建武张浩董颖涛冉龙飞韩晓峰寇晓梅熊登峪牛天祥
Owner POWERCHINA XIBEI ENG
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