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Integrated two-phase anaerobic reactor

An anaerobic reactor and reactor technology, applied in the field of water treatment, can solve the problems of large floor space, high construction and operation costs, uneven distribution of sludge, etc., and achieve the effect of increasing biomass and improving wastewater treatment capacity.

Inactive Publication Date: 2010-11-10
王鹤立
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Problems solved by technology

It can solve the problems of high construction and operation costs and large floor area caused by the use of two independent reactors in the traditional two-phase anaerobic process
Change the problem of uneven distribution of sludge along the direction of water flow in the reaction zone of traditional upflow anaerobic reactors

Method used

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  • Integrated two-phase anaerobic reactor
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Examples

Experimental program
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Effect test

Embodiment 1

[0014] Reconstruction of the existing upflow anaerobic reactor: treatment of cornstarch sugar production wastewater, the basic parameters of wastewater are shown in Table 1:

[0015]

[0016] The original process adopts: regulating pool-UASB-SBR

[0017] The design hydraulic retention time of the regulating tank is 3.5h, the UASB design hydraulic retention time is 28h, and the SBR design hydraulic retention time is 14h. In April 2008, the factory expanded the sugar workshop, and the designed production capacity increased by 30% compared with the original one, and the corresponding amount of waste water produced was also 400m 3 / d raise to 520m 3 / d, for the increase of water volume, the average effluent COD of the existing UASB reactor increased from 980mg / L to 1525mg / L, making the subsequent SBR process effluent unable to meet the original design requirements. In June 2008, the UASB reactor was rebuilt, and elastic three-dimensional packing was added in the reaction area...

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Abstract

The invention provides an integrated two-phase anaerobic reactor. A fixing padding and an alkali distribution tube are arranged in a reaction area of the conventional up-flow anaerobic reactor; and by feeding alkali, the padding layer is adjusted and the pH value of muddy water in the reaction area above the padding layer is between 6.8 and 7.2 so that optimal growth conditions of acid generating fermentation microbes and methane generating fermentation microbes are formed on the lower part and the upper part of the reactor respectively and the treatment capability and running stability of the wastewater anaerobic reactor are greatly improved. Separation of hydrolysis acidifying phase and methane generating phase is realized in the reactor, capital construction and running expenses are saved, and the volume load of the reactor is improved.

Description

technical field [0001] The invention relates to an integrated two-phase anaerobic reactor, which realizes two-phase separation in one reactor, saves land occupation and infrastructure costs, improves treatment efficiency, and belongs to the technical field of water treatment. Background technique [0002] The traditional two-phase anaerobic process controls the hydrolysis acidification process and the methane production process in two independent reactors to create the best microbial growth conditions for each, so as to facilitate the two types of bacteria to play their respective roles: the main function of the acid production phase In order to improve the biodegradability of the substrate, a suitable substrate is provided for the methanogenic phase; the methanogenic phase mainly converts the substrate provided by the acidogenic phase into methane; the two together constitute a two-phase anaerobic process system. Its advantages are as follows: (1) The traditional two-phase ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28
CPCY02E50/30
Inventor 李广韩冰皮金武王鹤立
Owner 王鹤立
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