A kind of anaerobic granular sludge expanded bed reactor and start-up and operation method

Abstract

The invention discloses a novel anaerobic expanded granular sludge bed reactor as well as a starting and operating method thereof. The reactor mainly comprises an expanded bed reactor main body, a water distribution device, a constant temperature circulated water heating device, a spiral pipe device and a water flow control device; a jacketed layer is arranged outside the expanded bed reactor mainbody, and a biogas collecting device is arranged at the top surface of the expanded bed reactor main body; the water distribution device is located at the inner bottom of the expanded bed reactor main body; the constant temperature circulated water heating device mainly comprises a temperature control device, a water circulation chamber, an electric heating device, a heating device and a controller; the spiral pipe device is located in the middle part of the expanded bed reactor main body; the water flow control device comprises a water pump and a water flow control room. The reactor improvesstability of the anaerobic expanded granular sludge bed reactor, shortens reaction time, and controls the temperature of the reactor with green energy saving, and effectively prevents granular sludgefrom blocking and hindering the influent; and the liquid surface rising speed is controllable.

Description

technical field [0001] The invention relates to the technical field of anaerobic bioreactors, in particular to an anaerobic granular sludge expanded bed reactor and a start-up and operation method. Background technique [0002] Add solid granular fillers to the anaerobic expanded bed bioreactor. Commonly used fillers include quartz sand, ceramsite, etc. The anaerobic expanded bed bioreactor needs to use the method of effluent reflux to expand the packed bed in the reactor. The anaerobic reactor in which the filler particles in the packed bed are slightly loose, and the gap between the filler particles increases but still keeps in contact with each other is called an anaerobic expanded bed bioreactor. [0003] The packed bed of the anaerobic expanded bed bioreactor has a high concentration of microorganisms, a high organic matter volume load, a short hydraulic retention time, and strong resistance to organic matter impact loads. The disadvantages of the anaerobic expanded be...

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Problems solved by technology

[0005] The technical problem solved by the present invention is: in order to improve and solve the stability of the anaerobic granular sludge expanded bed reactor in the prior art, the reaction time is longer, and the temperature control of the reactor is green and energy-saving, so as to prevent the granular sludge from clogging For the problems of hindering water inflow and controlling the rising rate of liquid level, an anaerobic granular sludge expanded bed reactor and its starting and operating method are provided

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