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System and method for realizing heat balance of biogas residue drying by synergetically digesting food waste, kitchen waste and municipal sewage sludge

A technology of kitchen waste and kitchen waste, which is applied in the field of waste resource utilization, can solve the problems of increased sludge treatment costs, high sludge heat, and difficulty in maintaining thermal drying operation, so as to meet heat demand and increase biogas production , high environmental and economic benefits

Pending Publication Date: 2020-01-14
ANYANG AIERWANG NEW ENERGY ENVIRONMENTAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, thermal drying of sludge requires a lot of heat, and it is difficult to maintain the operation of thermal drying only by relying on the biogas produced by itself
If an external heat source is added, the sludge treatment cost will increase greatly

Method used

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  • System and method for realizing heat balance of biogas residue drying by synergetically digesting food waste, kitchen waste and municipal sewage sludge
  • System and method for realizing heat balance of biogas residue drying by synergetically digesting food waste, kitchen waste and municipal sewage sludge
  • System and method for realizing heat balance of biogas residue drying by synergetically digesting food waste, kitchen waste and municipal sewage sludge

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Embodiment Construction

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0044] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unles...

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Abstract

The invention discloses a system and a method for realizing heat balance of biogas residue drying by synergetically digesting food waste, kitchen waste and municipal sewage sludge. The system for realizing the heat balance of the biogas residue drying by synergetically digesting the food waste, the kitchen waste and the municipal sewage sludge comprises a food waste pretreatment apparatus, a kitchen waste pretreatment apparatus, a homogenizing-blending apparatus, an anaerobic digestion apparatus, a biogas purification apparatus, a combustion boiler, a dehydration apparatus, and a drying apparatus; the food waste pretreatment apparatus comprises a food waste inlet, a food waste slurry outlet, and an oil outlet; the kitchen waste pretreatment apparatus comprises a kitchen waste inlet, and akitchen waste slurry outlet; the homogenizing-blending apparatus comprises a food waste slurry inlet, a kitchen waste slurry inlet, a municipal sewage sludge inlet, and a mixed slurry outlet; the anaerobic digestion apparatus comprises a mixed slurry inlet, a biogas inlet, and a biogas residue outlet; the biogas purification apparatus comprises a biogas inlet, and a purified biogas outlet; the combustion boiler comprises a purified biogas inlet, and an overheated steam outlet; the dehydration apparatus comprises a biogas residue inlet, and a dehydrated residue outlet; and the drying apparatuscomprises a dehydrated residue inlet, an overheated steam inlet, and a dried residue outlet.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of waste, and in particular relates to a system and method for synergistic digestion of kitchen waste, kitchen waste and municipal sludge to realize heat balance of biogas residue drying. Background technique [0002] Kitchen waste is wet waste in urban waste classification, accounting for 50%-60% of urban waste generation, mainly a mixture of unprocessed food such as fruit peels, vegetables, fish, meat, and bones. Food waste is food processing waste (kitchen waste) and edible residue (swill) produced by schools, canteens, restaurants and other catering industries. Its composition is very complex, mainly oil, water, fruit peels, vegetables, rice noodles, fish, meat , bones, and a mixture of waste tableware, plastic, paper towels, and more. [0003] Kitchen waste and kitchen waste have obvious duality, hazard and resource. The main harmful manifestations are: kitchen waste contains v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/107C12M1/00C02F11/04C02F11/122C02F11/127C02F11/13C02F11/147F23G7/06
CPCC12M21/04C12M47/18C12M43/04C02F11/04C02F11/122C02F11/127C02F11/147C02F11/13F23G7/06Y02E50/30
Inventor 王志玺单明焕魏晓东朱伟娜燕松涛郭栋马淑叶
Owner ANYANG AIERWANG NEW ENERGY ENVIRONMENTAL
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