Dual-ring nested two-phase integrated anaerobic reactor

An anaerobic reactor, an integrated technology, applied in the direction of gas production bioreactor, bioreactor/fermenter combination, specific-purpose bioreactor/fermenter, etc., can solve the problem that the anaerobic reactor occupies a large area , complex operation and maintenance of the system, short service life and other problems, to achieve the effect of compact structure, improved system stability, and saved floor space

Inactive Publication Date: 2018-06-19
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing two-phase anaerobic reactor also has disadvantages such as large area of ​​anaerobic reactor, short service life, high energy consumption, high investment cost, complicated system operation and maintenance, poor reliability, and low gas production efficiency.

Method used

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  • Dual-ring nested two-phase integrated anaerobic reactor
  • Dual-ring nested two-phase integrated anaerobic reactor
  • Dual-ring nested two-phase integrated anaerobic reactor

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 with figure 2 As shown, a double-ring nested two-phase integrated anaerobic reactor provided by the present invention includes an anaerobic digestion tank 1, a feed tank 2, a feed pump 3, a biogas residue biogas slurry tank 4, a heating water tank 5 and Electrical control cabinet6. Among them, the anaerobic digestion tank 1 adopts an inner and outer double-ring nested structure, the inner ring is used as the hydrolysis acidification phase, and the outer ring is the methanogenic phase; the feed pool 2 is used for temporarily storing feed kitchen waste; the feed pump 3 is used to The pretreated food waste is pumped into the anaerobic digestion tank 1, the feed pump 3 is a screw pump; the biogas residue digester 4 is used to temporarily store the biogas residue and biogas slurry discharged after anaerobic digestion; the heating...

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Abstract

The invention relates to a dual-ring nested two-phase integrated anaerobic reactor. The reactor comprises an anaerobic digestion tank adopting an inner and outer dual-ring nested structure, the innerring of the anaerobic digestion tank is used as a hydrolysis acidification phase, and the outer ring of the anaerobic digestion tank is used as a methane production phase. The anaerobic digestion tankwith the inner and outer dual-ring nested structure is adopted, the inner ring is used as the hydrolysis acidification phase, and the outer ring is the methane production phase, so the dual-ring nested two-phase integrated anaerobic reactor realizes phase separation in the same reactor, the influences of volatile acid accumulation in the kitchen waste anaerobic digestion process on the stabilityof the system are reduced, the stability of the system is improved, the organic load and the volumetric gas production efficiency are increased, the structure is compact, the occupied area of the reactor is saved, and the running efficiency is improved. The dual-ring nested two-phase integrated anaerobic reactor has the advantages of simple structure, convenience in running and maintenance, and high automation degree, and can be widely applied to the two-phase anaerobic digestion treatment of the kitchen wastes.

Description

technical field [0001] The invention belongs to the technical field of biomass waste treatment, in particular to a double-ring nested two-phase integrated anaerobic reactor. Background technique [0002] Anaerobic digestion technology can realize the harmless treatment and resource utilization of biomass waste, and is considered to be the most widely used and most promising biomass waste treatment technology. High organic loads, fluctuations in environmental conditions, inhibitory substances, etc. may lead to acidification of anaerobic systems. The main reason is that the production and consumption of volatile fatty acids (VFA) are unbalanced: the generation time of acid-producing bacteria is short, and the growth rate is fast. A large amount of organic acid is produced, but methanogens have a long generation time, slow proliferation rate, and limited ability to consume organic acid. Volatile acid accumulation occurs when methanogens are unable to convert the produced acid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/107C12M1/00
CPCC12M21/04C12M23/02
Inventor 左剑恶史绪川阎中
Owner TSINGHUA UNIV
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