Biological comprehensive treatment for kitchen refuse
A technology for comprehensive treatment of food waste, applied in the fields of bio-organic part treatment, separation method, light water/sewage treatment, etc., can solve the problems of restricting the treatment effect of aerobic composting process, large energy consumption, secondary pollution, etc., and achieve Improve the palatability of livestock, change the ecological environment, and improve the effect of solid-liquid separation
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Publication Date
- 2009-11-18
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
technical field
[0001] The invention relates to a new process technology that uses kitchen waste as raw material, adopts steam heating to degreasing and disinfection, microbial solid-liquid fermentation and other comprehensive treatment techniques, separates and extracts oil, and converts solid components in waste through solid fermentation of beneficial microorganisms and multi-bacteria species It is a production process in which the liquid component is transformed into a liquid biological bacterial fertilizer through a secondary fermentation process into a biologically active protein feed. Background technique
[0002] In the present invention, "kitchen waste" refers to food processing leftovers (kitchen waste) and edible residues (swill) produced by families, schools, canteens, and catering industries. Its composition is complex, which is a mixture of oil, water, fruit peel, vegetables, rice noodles, fish, meat, bones, waste tableware, plastic, paper towels and other subs...
Examples
Embodiment Construction
[0038] Treat 50 tons of kitchen waste, its main components are: moisture accounts for about 79%, crude fat accounts for about 29.9%, crude protein accounts for about 20%, crude fiber accounts for 3.53%, crude ash content accounts for 8.51%, and calcium accounts for 0.81%. Phosphorus 0.77%, pH 6.5.
[0039] Preparation:
[0040] 1. Solid-liquid separation: use the filtration method to separate the solid-liquid from the kitchen waste, and separate the liquid components from the solid components in the kitchen waste to obtain liquid materials and solid materials.
[0041] 2. Steam heating and degreasing: the solid material after solid-liquid separation enters the steam heating device, and is heated and degreased with high-temperature steam. The steam heating condition is to use steam at 110-120°C, heat for 10-30 minutes, and then spray with 80-100°C hot water for 5-10 minutes after the oil is completely liquefied, to wash away the liquefied oil in the material, grease and spray ...