UASB reactor system with self-heating function

Abstract

The invention relates to the technical field of UASB reactors, and discloses a UASB reactor system with a self-heating function, the UASB reactor system comprises a UASB reactor body, a hot water jacket, an electric heating tank and a cold water collecting tank, the hot water jacket is fixedly coated on the outer side of the UASB reactor body, the electric heating tank and the cold water collecting tank are respectively located on two sides of the UASB reactor body, supporting legs are fixedly connected to the bottom end of the UASB reactor body, the UASB reactor body is communicated with the hot water jacket through a hot water conduction mechanism, a cold water conduction mechanism is communicated between the hot water jacket and the cold water collecting tank, and a water return pipe is further arranged between the electric heating tank and the cold water collecting tank. The UASB reactor system is ingenious in structure and convenient to use, the UASB reactor body can be heated and subjected to heat preservation in a heat conduction mode, the heat preservation effect is good, water can be repeatedly utilized, the UASB reactor is more environmentally friendly and economical, the internal environment of the UASB reactor body cannot be affected in the heating process, and the good purification effect can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of UASB reactors, in particular to a UASB reactor system with self-heating function. Background technique [0002] UASB has been used in wastewater treatment for over 20 years. Compared with traditional anaerobic reactors (such as anaerobic lagoons, septic tanks), UASB has a shorter hydraulic retention time, longer solid retention time, maintains a high concentration of microbial biomass, and can combine a large amount of highly active biomass , which greatly improves the stability of sludge and the load capacity of the reactor, and is currently widely used in the treatment of high-concentration organic wastewater all over the world. In the UASB reactor, the anaerobic bacteria use the organic matter in the anaerobic sludge as the substrate to purify the sewage through degradation. The optimal growth temperature of most anaerobic bacteria (mainly methanogens and hydrolytic bacteria) is 30-35℃. In my countr...

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Problems solved by technology

The biogas produced by the anaerobic reaction is introduced into the biogas boiler to generate a large amount of water vapor, and the water vapor is evenly distributed in the UASB reactor through the air-supply pump through the pneumatic stirring rod. Although it can save energy, due to the need to Water vapor is passed into the UASB reactor, and oxygen will be entrained in the water vapor, and the water vapor will be partially liquefied after passing into the UASB reactor, which will gradually destroy the anaerobic environment inside the UASB reactor and change the pH value inside the UASB reactor. Changes the optimal living environment for anaerobic bacteria, greatly reducing the treatment efficiency

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