Full-biomass resource utilization method for kitchen waste

A kitchen waste and full biomass technology, which is applied in the field of waste resource recycling, can solve the problems of increased processing cost of kitchen waste, incomplete utilization of raw material components, low added value of products, etc., so as to shorten the fermentation time and reduce the processing time. Cost, mild effect of operation process

Inactive Publication Date: 2012-07-11
天津新生环境发展有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above existing food waste treatment processes are relatively simple, the raw material components are not fully utilized

Method used

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  • Full-biomass resource utilization method for kitchen waste
  • Full-biomass resource utilization method for kitchen waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Preparation of fuel ethanol, biodiesel and protein feed from food waste collected from restaurants

[0025] The collected food waste is manually sorted out of non-biomass components, and the metal debris mixed in is selected by a movable magnetic separation device; then it is sent to a filter press for solid-liquid separation, and a large amount of oil-water components are removed Enter the oil-water separator for oil extraction, and the waste water enters the sewage treatment system; the water content of the solid component after dehydration and deoiling is 70%, and it is sent to the pulverizer, and the particle size after pulverization is ≤1cm. Put 1000g of pulverized material into an ethanol fermenter, add 5g of liquefaction enzyme, and liquefy at 85°C for 30 minutes; cool the temperature of the fermenter to 45°C, adjust the pH of the material to 4.5-5.0 with sulfuric acid or sodium hydroxide, and add glucoamylase and pectinase, enzymatic hydrolysis for 4 ...

Embodiment 2

[0026] Example 2: Preparation of fuel ethanol, biodiesel and protein feed from food waste collected from canteens

[0027] The non-biomass components are manually sorted from the food waste collected in the canteen, and the metal debris mixed in is selected by a movable magnetic separation device; then it is sent to a filter press for solid-liquid separation, and the oil-water components removed Enter the oil-water separator for oil extraction, and the waste water enters the sewage treatment system; the water content of the solid component after dehydration and deoiling is 70%, and it is sent to the pulverizer, and the particle size after pulverization is ≤1cm. Put 1000g of pulverized material into an ethanol fermenter, add 5g of liquefaction enzyme, and liquefy at 85°C for 30 minutes; cool the temperature of the fermenter to 45°C, adjust the pH of the material to 4.5-5.0 with sulfuric acid or sodium hydroxide, and add glucoamylase and pectinase, enzymatic hydrolysis for 4 hou...

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Abstract

The invention relates to a full-biomass resource utilization method for kitchen waste. The method comprises the following steps: sorting kitchen waste and then performing solid-liquid separation, performing oil-water separation on the liquid phase, grinding the solid phase and then producing fuel ethanol by complex enzyme preparation and multi-step hydrolysis, producing protein feeds from the solid residues and yeast after production purification, and performing transesterification on the separated waste oil to produce bio-diesel oil. The invention has the advantages that different components in the kitchen waste are transformed with high efficiency respectively by utilizing the process integration technology to produce fuel ethanol, bio-diesel oil, protein feeds and other products with high value added, so that the cost of kitchen waste treatment is reduced, and the economic benefits are improved; the operation process is mild, the energy consumption is reduced, and the process flow is environment-friendly; and the kitchen waste is turned into treasure, and the comprehensive waste reduction, resource and energy utilization can be achieved.

Description

technical field [0001] The invention belongs to the field of recycling and utilization of waste resources, and in particular relates to a method for resource utilization of full biomass of kitchen waste. technical background [0002] Food waste has dual attributes of "waste and resource", and is characterized by high water content, high oil content and rich organic content. At present, domestic food waste recycling technologies mainly include fertilizer treatment technology, feed technology, and bio-fermentation energy technology. [0003] Fertilization technology is to produce food waste into organic fertilizer through bio-composting method. Fertilization technology occupies a large area, takes a long time to process and the reaction conditions are not easy to control. The food waste recycled feed process mainly includes biological method and physical method: the biological method requires a large amount of supplementary biomass auxiliary materials and high-temperature dry...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00A23K1/06C02F9/14C11B13/00C11C3/10C10L1/02C12P7/08C12R1/865A23K10/38
CPCY02E50/13Y02E50/10Y02P20/10Y02P60/87Y02W30/74
Inventor 张景辉苏荣欣刘朝辉曹铭齐崴卢丹王文茜邵兆俊杨伟王尧
Owner 天津新生环境发展有限公司
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