DUO type full-coverage multichannel three-phase separator of high-speed anaerobic reactor

Abstract

The invention discloses a DUO type full-coverage multichannel three-phase separator of a high-speed anaerobic reactor, and relates to the technical field of wastewater anaerobic treatment. The DUO type full-coverage multichannel three-phase separator comprises an anaerobic reactor shell and a DUO type full-coverage multi-channel three-phase separator, the DUO type full-coverage multi-channel three-phase separator comprises a bucket-shaped biogas collecting cabin, a middle main biogas chamber and biogas chambers on the two sides, wherein the inner space of the bucket-shaped biogas collecting cabin is divided into the middle main biogas chamber and the biogas chambers on the two sides. A first separation channel and a second separation channel are formed in the lower side part of the biogascollecting cabin. The DUO type full-coverage multichannel three-phase separator is a high-efficiency wastewater, anaerobic granular sludge and biogas three-phase separation device suitable for an anaerobic reactor with high up-flow velocity and high volume load, which can effectively perform three-phase separation of biogas, granular sludge and wastewater through a downward flow separation channelwith a double-channel design. Meanwhile, the retention capacity of the small granular sludge in the anaerobic reactor can be greatly improved, so that the total amount of the anaerobic granular sludge in the whole anaerobic reactor is improved, and the treatment effect of the anaerobic reactor is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of anaerobic treatment of wastewater, in particular to a DUO type full-coverage multi-channel three-phase separator for high-speed anaerobic reactors, which is mainly suitable for the separation of biogas, granular sludge and wastewater in high-speed anaerobic reactors , can separate the three better than the three-phase separator of the current conventional anaerobic reactor, and at the same time can more effectively keep the anaerobic granular sludge in the anaerobic reactor, avoiding the occurrence of conventional anaerobic three-phase separator Sludge loss phenomenon. Background technique [0002] High-speed anaerobic reactors are widely used in domestic and foreign industrial wastewater anaerobic treatment projects, mainly including EGSB granular sludge expanded bed anaerobic reactor and IC internal circulation anaerobic reactor. The conventionally designed height of the EGSB anaerobic reactor is 10-18...

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Problems solved by technology

[0008] The third is the three-phase separator in the form of an inverted triangle multi-layer biogas collection module used in the IC anaerobic reactor. In fact, it only has the function of separating and collecting biogas, and is essentially the separation of biogas and sludge / wastewater mixture. , belongs to one-time separation (i.e. two-phase separation), and does not have the three-phase separation function of separating granular sludge and wastewater. Granular sludge is retained in the anaerobic reactor completely by its own weight, so those particles with smaller particle size and initially formed The anaerobic granular sludge in the IC anaerobic reactor is often unable to overcome the biogas in the IC anaerobic reactor and the high flow rate induced by hydraulic power, and is washed out of the anaerobic reactor, resulting in the loss of these anaerobic sludge

This is the problem that this type of three-phase separator cannot overcome at present

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