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Technological method of parallel-connected sequencing batch dry type anaerobic digestion treatment of organic solid waste

A technology of organic solids and process methods, applied in biochemical equipment and methods, waste fuels, solid-phase fermentation bioreactors, etc., can solve the problems of difficult mixing of materials and easy acidification of fermentation materials, and achieve economical and concrete Operational feasibility, shortened start-up time, simple construction and construction facilities

Active Publication Date: 2010-06-02
TSINGHUA UNIV
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Problems solved by technology

[0003] However, in actual engineering applications, since the materials are not diluted with water or only a small amount of water is added, it is difficult to fully mix the materials in the dry anaerobic digestion system, and the fermentation materials are more prone to acidification.

Method used

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  • Technological method of parallel-connected sequencing batch dry type anaerobic digestion treatment of organic solid waste
  • Technological method of parallel-connected sequencing batch dry type anaerobic digestion treatment of organic solid waste

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Embodiment 1

[0023] Embodiment 1: This example is a preferred example.

[0024] Such as figure 1 As shown, four reaction tanks are set up in this anaerobic digestion process, and the processing scale of each reaction tank is 10t. A biogas slurry collection tank is installed in the middle of the bottom of the reaction tank, and a single-flange perforated collection pipe is used for biogas slurry collection. The liquid enters the biogas slurry collection pond through the collection branch pipe and the main pipe. There is a heating coil in the biogas slurry collection pond, and the temperature can be adjusted according to the needs. The biogas slurry inlet and outlet pipes of the collection pond are equipped with valves, and the biogas slurry is collected and recharged according to actual needs. The temperature-adjusted biogas slurry is recharged through the submerged pump. If conditions permit, the controller can also be set according to the pH value and gas production rate of the reaction...

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Abstract

The invention discloses a technological method of the parallel-connected sequencing batch dry type anaerobic digestion treatment of organic solid wastes, belonging to the technical field of environmental protection. Four sequencing batch dry type anaerobic digestion reaction pots are in parallel connected; each sequencing batch dry type anaerobic digestion reaction pot is correspondingly provided with a biogas slurry collection pool, i.e. the four sequencing batch dry type anaerobic digestion reaction pots (A, B, C, D) respectively correspond to four biogas slurry collection pools (a, b, c, d); and each biogas slurry collection pool is connected with a submerged pump and a valve. Biogas slurry enters a main biogas slurry regurgitated pipe through the submerged pump, enters the corresponding main biogas slurry regurgitated pipe by opening the corresponding valve according to the digestion process of materials and is uniformly sprayed to the materials through a spraying device. The invention forms different technological conditions to furthest activate the activity of two anaerobic nitrifying bacteria to accelerate the degradation of the organic solid wastes and enhance the aerogenesis speed by utilizing the difference of optimal growing environments of acid-producing bacteria and methanogens through the recharge of the biogas slurry.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and relates to an organic solid waste treatment technology. Specifically, this process connects anaerobic digestion units in parallel, collects the biogas slurry and controls its temperature and pH, and then cross-refills the corresponding cells for inoculation and temperature adjustment, thereby accelerating the degradation of organic solid waste and producing The device and method of clean energy biogas belong to the fields of solid waste treatment technology and biomass energy technology. Background technique [0002] At present, the treatment methods of organic waste in the world are mainly resource-oriented, and there are various methods and models. These methods are roughly divided into sanitary landfill method, incineration method, composting method, feed production method and anaerobic digestion method, etc. . Among them, anaerobic digestion, as a net production capacity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C12M1/107
CPCC12M21/16Y02E50/343C12M23/58C12M21/04Y02E50/30
Inventor 蒋建国王岩
Owner TSINGHUA UNIV
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