Food waste oil recovery system using cooking device

The steamer-based system for food waste treatment efficiently recovers waste oil and produces biodiesel and biogas, addressing economic and environmental challenges in food waste processing by optimizing wastewater treatment and resource recovery.

KR102997662B1Active Publication Date: 2026-08-03SAMWOOTCC
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Patent Information

Application Number
KR1020260003987
Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2026-01-09
Publication Date
2026-08-03
Estimated Expiration
2046-01-09

AI Technical Summary

Technical Problem

Existing food waste resource recovery processes incur significant economic losses and environmental pollution due to excessive energy input and harmful emissions from treating food waste leachate and condensate, necessitating a more efficient and environmentally friendly method for wastewater treatment and resource recovery.

Method used

A system utilizing a steamer for pretreatment and dehydration of food waste, followed by anaerobic digestion of condensed wastewater to produce biodiesel and biogas, incorporating heat-exchange methods to enhance wastewater fluidity and separation efficiency.

Benefits of technology

The system efficiently recovers waste oil and produces biodiesel and biogas while reducing environmental pollution and operating costs, enhancing resource recovery and minimizing pollutant emissions.

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Abstract

The present invention relates to a system for producing biodiesel raw materials and biogas from food waste leachate and condensed wastewater generated during the pretreatment process of food waste using a steamer. The present invention provides a system for recovering waste oil from food waste utilizing a steamer, which can produce biodiesel fuel by recovering waste oil from wastewater generated in the pretreatment process of food waste using a combined batch combination of a food waste dehydrator and a food waste steamer, and can also produce biogas by anaerobic digestion of condensation wastewater generated in the drying process of food waste in a digester, thereby efficiently and economically treating pollutants such as wastewater and condensation wastewater through this process, while also ensuring smooth fluidity of the wastewater and increasing the amount of waste oil that can be separated from the wastewater by adopting a method of raising the temperature of the wastewater by heat exchange between the high-temperature steam condensation heat water discharged from the dryer side and the wastewater in the wastewater storage tank side.
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