Method for on-site zero food waste treatment and system thereof

Abstract

A method and system for on-site zero-waste treatment, the method comprising: crushing and processing kitchen waste, separating oil and water, and dehydrating it to obtain a kitchen waste fragment assembly; adding natural moisture-absorbing fibers to the kitchen waste fragment assembly, stirring and heating to dry it, producing a dry kitchen waste mixture, wherein the drying temperature is between 60°C and 85°C, and the moisture content of the dry kitchen waste mixture is between 5% and 15%; and feeding the dry kitchen waste mixture into a gasifier, whereby the dry kitchen waste mixture is converted into a combustible gas under high temperature conditions.

Claims

1. A method for zero-waste treatment at the factory, comprising: separating kitchen waste into raw kitchen waste and cooked kitchen waste; subjecting the cooked kitchen waste to a crushing process and an oil-water separation process; subjecting the raw kitchen waste to a crushing process and a centrifugal dehydration process; combining the crushed and oil-water separated cooked kitchen waste and the crushed and centrifugally dehydrated raw kitchen waste into a kitchen waste fragment assembly; adding natural moisture-absorbing fibers to the kitchen waste fragment assembly, stirring and heating to dry, thereby producing a dry kitchen waste mixture, wherein... The drying temperature is between 60 and 85 degrees Celsius, and the moisture content of the dried food waste mixture is between 5% and 15%. The volume ratio of the food waste fragments to the natural absorbent fiber is 2:

1. The dried food waste mixture is processed into a plurality of dried food waste granules with a particle size of less than 5 cm at a high temperature of 80 to 120 degrees Celsius. The plurality of dried food waste granules are then fed into a gasifier and, under a high temperature of 800 degrees Celsius or higher, the plurality of dried food waste granules are converted to produce a combustible gas.

2. Regarding the on-site zeroing method for kitchen waste as requested in item 1, where, This natural moisture-absorbing fiber contains wood chips or rice husks.

3. As in Request 1, the method for eliminating food waste at the factory, wherein, It also includes the step of using the combustible gas as fuel to generate steam power.

4. A food waste zeroing system, comprising: a food waste crushing unit for crushing raw food waste and cooked food waste separately to produce crushed raw food waste and crushed cooked food waste; an oil-water separation unit for removing oil and water from the crushed cooked food waste; a dehydration unit for removing water from the crushed raw food waste; a stirring and drying unit for adding natural moisture-absorbing fibers to the dehydrated crushed raw food waste and the crushed cooked food waste after removing oil and water, stirring, and performing a drying process to produce a dried food waste mixture; a granulation unit for making a plurality of dried food waste granules from the dried food waste mixture; and a high-temperature gasification furnace for decomposing and gasifying the plurality of dried food waste granules into a combustible gas under high-temperature and oxygen-deficient conditions.

5. As in request item 7, the on-site food waste disposal system, wherein, It also includes a combustible gas power generation unit that uses the combustible gas as fuel to perform a steam power generation process.

6. As in request item 7, the on-site food waste disposal system, wherein, The stirring drying unit includes a drum dryer, and the dehydration unit includes a centrifugal dehydrator.

7. As in request item 7, the on-site food waste disposal system, wherein, The high-temperature gasifier includes a downdraft gasifier.

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