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Title:
HIGH-VALUE TREATMENT SYSTEM OR METHOD FOR URBAN WET WASTE
Document Type and Number:
WIPO Patent Application WO/2022/178960
Kind Code:
A1
Abstract:
The present invention relates to the field of organic waste treatment of urban waste, and in particular, to a high-value treatment system or method for urban wet waste. In the present invention, by means of steps such as oil extraction, high-efficiency hydrolysis, high-value biological conversion, simultaneous recovery of released nitrogen and phosphorus and deep utilization of residues, the high-value treatment of urban wet waste to acetic acid, the biological conversion of generated by-products, i.e. carbon dioxide and hydrogen, to acetic acid, the recovery of released nitrogen and phosphorus to a sustained-release fertilizer, and the preparation of solid residues into a material for promoting the high-value treatment of wet waste to acetic acid are realized. The present invention can not only realize the high-value treatment of urban wet waste, but also reuse generated waste gases and waste residues.

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Inventors:
CHEN YINGUANG (CN)
ZHENG XIONG (CN)
ZHANG XUEMENG (CN)
CHEN CHUANG (CN)
WANG QUNHUI (CN)
GAO MING (CN)
Application Number:
PCT/CN2021/088587
Publication Date:
September 01, 2022
Filing Date:
April 21, 2021
Export Citation:
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Assignee:
UNIV TONGJI (CN)
UNIV BEIJING SCIENCE & TECHNOLOGY (CN)
International Classes:
C02F11/04; C02F11/12; C02F11/143; C02F11/147; C05G1/00; C12P7/40
Foreign References:
CN105855275A2016-08-17
CN1928099A2007-03-14
CN103833133A2014-06-04
CN112058856A2020-12-11
CN101701228A2010-05-05
CN103509829A2014-01-15
US20140238934A12014-08-28
JP2007306844A2007-11-29
Other References:
LI ZHEN;RUAN DANIAN;SHANGHAI CHENGTOU: "Enhanced Process of Anaerobic Digestion for Dewatered Sludge by Alkaline Pretreatment", WATER PURIFICATION TECHNOLOGY, vol. 39, no. 7, 25 July 2020 (2020-07-25), pages 145 - 150, XP055962418, ISSN: 1009-0177, DOI: 10.15890/j.cnki.jsjs.2020.07.024
Attorney, Agent or Firm:
SHANGHAI WEI YUAN PATENT LAW LLC (CN)
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