WO2021046857A1 - Bactéries mixtes destinées à être utilisées dans le traitement anaérobie de déchets de cuisine - Google Patents

Bactéries mixtes destinées à être utilisées dans le traitement anaérobie de déchets de cuisine Download PDF

Info

Publication number
WO2021046857A1
WO2021046857A1 PCT/CN2019/105849 CN2019105849W WO2021046857A1 WO 2021046857 A1 WO2021046857 A1 WO 2021046857A1 CN 2019105849 W CN2019105849 W CN 2019105849W WO 2021046857 A1 WO2021046857 A1 WO 2021046857A1
Authority
WO
WIPO (PCT)
Prior art keywords
bacteria
kitchen waste
fermentation
anaerobic
treatment
Prior art date
Application number
PCT/CN2019/105849
Other languages
English (en)
Chinese (zh)
Inventor
袁增伟
张诗文
覃祖茂
盛虎
王婷
Original Assignee
南京大学（溧水）生态环境研究院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南京大学（溧水）生态环境研究院 filed Critical 南京大学（溧水）生态环境研究院
Priority to PCT/CN2019/105849 priority Critical patent/WO2021046857A1/fr
Publication of WO2021046857A1 publication Critical patent/WO2021046857A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless

Definitions

  • the invention belongs to the field of environment, and particularly relates to a mixed bacteria used for anaerobic treatment of kitchen waste.
  • Food waste generally refers to food cuttings and food residues in restaurants, hotels and other catering industries, as well as in public canteens such as enterprises and institutions, colleges and universities.
  • food waste is increasing day by day.
  • the daily production of kitchen waste in my country exceeds 20Kt.
  • the daily occurrence of scum in Shanghai alone amounts to more than 1,300 tons.
  • As food waste is prone to fermentation, deterioration, and decay, it not only produces a lot of toxins, emits malodorous gas, but also pollutes water and the atmosphere, seriously affecting environmental sanitation, and posing a potential threat to people's health.
  • the problem of scum-foot waste disposal has been severely confronted by people.
  • the reactor and related equipment of the wet anaerobic digestion process are large in size and sensitive to shock load. Because the solid content in the slurry is high, it needs to be diluted with water. The consumption is large, and the amount of waste water produced is also large.
  • the present invention provides a method for anaerobic treatment of kitchen waste.
  • the present invention provides a method for anaerobic treatment of kitchen waste, including the following steps:
  • the mixed bacteria used in the anaerobic treatment include carbohydrate fermentation bacteria (Syntrophomonas), carbohydrate fermentation bacteria (Alkaliphilus), fat degrading bacteria (Erysipelotrichia), Methanosaeta, Methanospirillum, Clostridia.
  • the carbohydrate fermentation bacteria (Syntrophomonas) accounted for 50-60% of the effective viable bacteria, and the carbohydrate fermentation bacteria (Alkaliphilus) accounted for 20% of the effective viable bacteria.
  • the carbohydrate fermentation bacteria (Alkaliphilus) accounted for 20% of the effective viable bacteria.
  • -30% fat-degrading bacteria (Erysipelotrichia) accounted for 4-10% of effective live bacteria, Methanosaeta accounted for 3-10% of effective live bacteria, Clostridium paraputrificum accounted for effective The proportion of viable bacteria is 3-10%.
  • the carbohydrate fermentation bacteria (Syntrophomonas) accounted for 55% of the effective viable bacteria
  • the carbohydrate fermentation bacteria (Alkaliphilus) accounted for 25% of the effective viable bacteria.
  • Fat-degrading bacteria (Erysipelotrichia) accounted for 8% of the number of effective live bacteria
  • Methanosaeta Methanosaeta
  • Clostridium paraputrificum Clostridium paraputrificum (Clostridium paraputrificum) accounted for 6% of the number of effective live bacteria.
  • step (2) crush to a particle size of 1 to 3 cm.
  • step (3) the desalting and degreasing treatment is to wash the dehydrated material with water at 55° C.-90° C. to remove salt and grease in the material.
  • the conditions of anaerobic fermentation treatment include: controlling the fermentation temperature at 40-60°C, rotating speed at 2-6 revolutions per minute, air intake per kilogram of solids at 3-10m 3 /h, and fermentation at 10- 15 days.
  • step (5) the temperature for drying and sterilizing is 120-160°C.
  • the anaerobic treatment method for kitchen waste provided by the present invention utilizes microorganisms to treat kitchen waste, has good treatment effect and high treatment efficiency, and is suitable for industrial applications.
  • the method for anaerobic treatment of kitchen waste includes the following steps:
  • crushed materials are subjected to dehydration and desalting and degreasing treatments in sequence; the desalting and degreasing treatment is to wash the dehydrated materials with water at 55° C. to remove salt and grease in the materials.
  • Anaerobic fermentation treatment conditions include: controlling the fermentation temperature at 40°C, rotating speed at 2 revolutions per minute, air intake per kilogram of solids at 3 m 3 /h, and fermentation for 10 days.
  • the mixed bacteria used for the anaerobic treatment of kitchen waste include carbohydrate fermentation bacteria (Syntrophomonas), carbohydrate fermentation bacteria (Alkaliphilus), fat degrading bacteria (Erysipelotrichia), Methanosaeta, Methanospirillum ), Clostridia.
  • the carbohydrate fermentation bacteria (Syntrophomonas) accounted for 50% of the effective viable bacteria
  • the carbohydrate fermentation bacteria (Alkaliphilus) accounted for 20% of the effective viable bacteria
  • the fat-degrading bacteria (Erysipelotrichia) accounted for 10% of the effective viable bacteria.
  • Methanosaeta accounted for 10% of the effective viable bacteria
  • Clostridium paraputrificum accounted for 10% of the effective viable bacteria.
  • the above-mentioned method for preparing mixed bacteria for anaerobic treatment of kitchen waste includes dry carbohydrate fermentation bacteria (Syntrophomonas), carbohydrate fermentation bacteria (Alkaliphilus), fat degrading bacteria (Erysipelotrichia), methanosaeta (Methanosaeta), and methane Mix spirillum (Methanospirillum) and Clostridia (Clostridia) evenly and get it.
  • the method for anaerobic treatment of kitchen waste includes the following steps:
  • the crushed materials are sequentially dehydrated and desalted and degreasing treatment; the desalting and degreasing treatment is to wash the dehydrated materials with water at 90° C. to remove salt and grease in the materials.
  • the conditions of anaerobic fermentation treatment include: controlling the fermentation temperature at 60°C, rotating speed at 6 revolutions per minute, air intake per kilogram of solids at 10 m 3 /h, and fermentation for 15 days.
  • the anaerobic fermentation materials are dried, sterilized, screened and crushed to obtain food waste fermentation products; the temperature of drying and sterilization is 120-160°C.
  • the carbohydrate fermentation bacteria (Syntrophomonas) accounted for 60% of the effective viable bacteria
  • the carbohydrate fermentation bacteria (Alkaliphilus) accounted for 30% of the effective viable bacteria
  • the fat-degrading bacteria (Erysipelotrichia) accounted for 4 %
  • Methanosaeta accounted for 3% of the effective viable bacteria
  • Clostridium paraputrificum accounted for 3% of the effective viable bacteria.
  • the above-mentioned method for preparing mixed bacteria for anaerobic treatment of kitchen waste includes dry carbohydrate fermentation bacteria (Syntrophomonas), carbohydrate fermentation bacteria (Alkaliphilus), fat degrading bacteria (Erysipelotrichia), methanosaeta (Methanosaeta), and methane Mix spirillum (Methanospirillum) and Clostridia (Clostridia) evenly and get it.
  • the method for anaerobic treatment of kitchen waste includes the following steps:
  • crushed materials are subjected to dehydration and desalting and degreasing treatments in sequence; the desalting and degreasing treatment is to wash the dehydrated materials with water at 70° C. to remove salt and grease in the materials.
  • the conditions of anaerobic fermentation treatment include: controlling the fermentation temperature at 50°C, rotating speed at 4 revolutions per minute, air intake per kilogram of solids at 6 m 3 /h, and fermentation for 12 days.
  • the anaerobic fermentation materials are dried, sterilized, screened and crushed to obtain food waste fermentation products; the temperature of drying and sterilization is 140°C.
  • the carbohydrate fermentation bacteria (Syntrophomonas) accounted for 55% of the effective viable bacteria, the carbohydrate fermentation bacteria (Alkaliphilus) accounted for 25% of the effective viable bacteria, and the fat-degrading bacteria (Erysipelotrichia) accounted for 8 percent of the effective viable bacteria. %, Methanosaeta accounted for 6% of the effective viable bacteria, and Clostridium paraputrificum accounted for 6% of the effective viable bacteria.
  • the above-mentioned method for preparing mixed bacteria for anaerobic treatment of kitchen waste includes dry carbohydrate fermentation bacteria (Syntrophomonas), carbohydrate fermentation bacteria (Alkaliphilus), fat degrading bacteria (Erysipelotrichia), methanosaeta (Methanosaeta), and methane Mix spirillum (Methanospirillum) and Clostridia (Clostridia) evenly and get it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un procédé destiné à être utilisé dans un traitement anaérobie de déchets de cuisine, comprenant les étapes consistant à : éliminer les débris de déchets de cuisine produits dans un jour donné pour obtenir un matériau à débris éliminés ; filtrer l'excès de matériau, puis trier, et broyer le matériau filtré et trié au préalable ; déshydrater, dessaler et dégraisser séquentiellement le matériau broyé ; ajuster le matériau déshydraté, dessalé et dégraissé, puis transférer dans un réservoir d'acidification par hydrolyse pour le traitement, puis mélanger avec des bactéries anaérobies pour la fermentation anaérobie ; sécher, stériliser, cribler et broyer le matériau fermenté en anaérobie pour obtenir un produit de fermentation de déchets de cuisine. Le procédé utilise des micro-organismes pour traiter des déchets de cuisine, fournit un effet de traitement important et un rendement de traitement élevé, et est approprié pour des applications industrielles.
PCT/CN2019/105849 2019-09-14 2019-09-14 Bactéries mixtes destinées à être utilisées dans le traitement anaérobie de déchets de cuisine WO2021046857A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/105849 WO2021046857A1 (fr) 2019-09-14 2019-09-14 Bactéries mixtes destinées à être utilisées dans le traitement anaérobie de déchets de cuisine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/105849 WO2021046857A1 (fr) 2019-09-14 2019-09-14 Bactéries mixtes destinées à être utilisées dans le traitement anaérobie de déchets de cuisine

Publications (1)

Publication Number Publication Date
WO2021046857A1 true WO2021046857A1 (fr) 2021-03-18

Family

ID=74865978

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/105849 WO2021046857A1 (fr) 2019-09-14 2019-09-14 Bactéries mixtes destinées à être utilisées dans le traitement anaérobie de déchets de cuisine

Country Status (1)

Country Link
WO (1) WO2021046857A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103215213A (zh) * 2013-05-20 2013-07-24 黑龙江八一农垦大学 一种用于餐厨垃圾厌氧发酵的复合菌剂
US20150101375A1 (en) * 2012-03-19 2015-04-16 Council Of Scientific And Industrial Research Anaerobic digestion system for household organic wastes
CN104646390A (zh) * 2013-11-19 2015-05-27 深圳德瑞新能科技有限公司 高效率低耗能的餐厨垃圾综合处理方法
CN104974970A (zh) * 2015-08-06 2015-10-14 农业部沼气科学研究所 高效厌氧降解油脂产甲烷的复合菌剂及制备方法和应用
CN105255854A (zh) * 2014-07-08 2016-01-20 鼎唐能源科技股份有限公司 可固定碳氧化物且可进行发酵反应的微生物及其制备方法与应用
CN105755055A (zh) * 2016-04-22 2016-07-13 华伟 利用餐厨垃圾、污泥与生活垃圾有机物制备沼气的方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150101375A1 (en) * 2012-03-19 2015-04-16 Council Of Scientific And Industrial Research Anaerobic digestion system for household organic wastes
CN103215213A (zh) * 2013-05-20 2013-07-24 黑龙江八一农垦大学 一种用于餐厨垃圾厌氧发酵的复合菌剂
CN104646390A (zh) * 2013-11-19 2015-05-27 深圳德瑞新能科技有限公司 高效率低耗能的餐厨垃圾综合处理方法
CN105255854A (zh) * 2014-07-08 2016-01-20 鼎唐能源科技股份有限公司 可固定碳氧化物且可进行发酵反应的微生物及其制备方法与应用
CN104974970A (zh) * 2015-08-06 2015-10-14 农业部沼气科学研究所 高效厌氧降解油脂产甲烷的复合菌剂及制备方法和应用
CN105755055A (zh) * 2016-04-22 2016-07-13 华伟 利用餐厨垃圾、污泥与生活垃圾有机物制备沼气的方法

Similar Documents

Publication Publication Date Title
CN105798050B (zh) 餐厨废弃物与生活垃圾焚烧发电协同处理工艺
CN102503595A (zh) 一种餐厨垃圾资源化处理方法
CN113042503B (zh) 一种餐厨垃圾分解发酵实现完全资源化的方法
CN104030738A (zh) 一种餐厨垃圾资源化、无害化的处理方法
CN1858027A (zh) 将厨余垃圾转化为肥料的方法
CN107626724A (zh) 一种餐厨垃圾资源化利用技术
CN112588788B (zh) 一种餐厨垃圾短流程资源化处理工艺
CN111632995A (zh) 一种餐厨垃圾资源化处理方法及系统
CN113333430B (zh) 一种有机垃圾废弃物资源化预处理系统及方法
CN112620317A (zh) 一种厨余垃圾处理发酵工艺
CN110560453A (zh) 利用黑水虻生物转化处理基于餐厨垃圾的方法
CN108059489A (zh) 利用亚临界水技术将畜禽粪污资源生产有机肥料的方法
CN111548202A (zh) 一种复合型湿垃圾发酵菌种制肥方法
WO2021046853A1 (fr) Procédé de traitement aérobie pour déchets de cuisine
CN101063152B (zh) 一种利用厨余垃圾常温厌氧发酵的方法
CN106609253A (zh) 一种餐厨垃圾发酵处理机专用菌及其配制方法
CN108840748A (zh) 基于废弃酒糟、餐厨垃圾的土壤生物有机肥的制备方法
CN1597629A (zh) 餐饮垃圾湿热加热制备有机肥料的方法
WO2021046856A1 (fr) Procédé de traitement de recyclage de déchets de cuisine
CN112044926A (zh) 一种使用有机垃圾制备养殖饲料的方法
CN110295077A (zh) 一种用含油污泥生产的再生清洁燃料及其制造方法
WO2021046857A1 (fr) Bactéries mixtes destinées à être utilisées dans le traitement anaérobie de déchets de cuisine
CN205999381U (zh) 一种餐厨垃圾厌氧发酵处理系统
WO2021046859A1 (fr) Bactéries mixtes pour le traitement anaérobie de déchets de cuisine
CN108117420A (zh) 一种畜禽污粪和植物秸秆协同处理方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19945065

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19945065

Country of ref document: EP

Kind code of ref document: A1