Wastewater anaerobic reaction system for recycling waste heat through heat pipes

Abstract

The invention discloses a wastewater anaerobic reaction system for recycling waste heat through heat pipes. The wastewater anaerobic reaction system comprises a biogas boiler, an upflow anaerobic reactor and heat pipes. The wastewater anaerobic reaction system is characterized in that wastewater is conveyed into the upflow anaerobic reactor to produce biogas via anaerobic reaction, the biogas is collected in a gas collection chamber and is introduced into a biogas purifier, the biogas is purified and can meet the combustion requirement, part of the biogas is introduced into the biogas boiler to generate mass hot water, the hot water is supplied to the upflow anaerobic reactor through a water pump to heat wastewater, and the temperature of the upflow anaerobic reactor is maintained to be areaction temperature for anerobic reaction fermentation. In addition, waste heat in outflow of the upflow anaerobic reactor is transferred to inflow of the upflow anaerobic reactor through the heat pipes, so that the temperature of the inflow of the upflow anaerobic reactor is increased. The biogas generated by the upflow anerobic reactor through fermenting is utilized; the temperature in the upflow anaerobic reactor is maintained within an optimal temperature range; therefore, activity of microbes is improved, and organic loading capacity of the upflow anerobic reactor is improved.

Description

technical field [0001] The invention relates to a sewage anaerobic reaction system using a heat pipe to recover waste heat, and belongs to the field of equipment technology for sewage treatment in environmental engineering applied to energy saving and emission reduction. Background technique [0002] With the development of our country's economy, the amount of sewage generated by both life and industry is increasing year by year. The sewage must be treated before it can be recycled or discharged, that is to say, the sewage treatment equipment increases with the increase of the sewage volume. In many sewage treatment processes, the link of anaerobic reaction to sewage is essential. [0003] Whether it is domestic sewage or industrial sewage, its organic matter content is relatively high. The role of the anaerobic reaction is to treat the organic matter in the sewage (including the insoluble humic acid) and the unremoved ammonia nitrogen in the inorganic ions. Most of the o...

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Problems solved by technology

[0008] In view of the above-mentioned existing solution to the technical shortcomings of the heating of the upflow anaerobic reactor, the present invention combines the characteristics of the heat pipe and the actual engineering is a successful application to propose a sewage anaerobic reaction system that utilizes the heat pipe technology to recover waste heat, so that The biogas produced by the upflow anaerobic reactor and the waste heat of the reactor effluent can be utilized, thereby solving the environmental pollution problem of the existing upflow anaerobic reactor, recovering waste heat, reducing the input of external energy, and further improving the upflow Anaerobic organic loading capacity and purification efficiency, etc.

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