Reactor for treatment of high-concentration organic wastewater

Abstract

The invention discloses a reactor for treatment of high-concentration organic wastewater. A lower water distribution system, an upper water distribution system, a lower three-phase separator and an upper sloping-plate separator are sequentially arranged in a reactor body from bottom to top. A gas-liquid separator is arranged at the top of the reactor body, the lower water distribution system and the upper water distribution system are connected with a water inlet pipe, and a lower methane riser connected with the gas-liquid separator is arranged at the top of the lower three-phase separator. An upper methane riser and a water outlet pipe are arranged above the upper sloping-plate separator. The outlet end of the upper methane riser is connected with the gas-liquid separator. A downcomer isarranged at the bottom of the gas-liquid separator, and a gas guide pipe is arranged at the top of the gas-liquid separator. The reactor has the advantages of low energy consumption, good effluent quality, high biogas yield and no odor, can strengthen uniform water distribution and fully mix mud and water, has high removal efficiency for pollutants, and dilutes incoming water through inner circulating water to strengthen system impact resistance to further achieve long-term stable operation.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment equipment, in particular to a high-concentration organic wastewater treatment reactor. Background technique [0002] At present, the treatment methods of high-concentration organic wastewater mainly include physical, chemical and biological methods. Among them, the physical-chemical method and the chemical method have the characteristics of low removal efficiency and high treatment cost, and the chemicals introduced by the chemical method will also cause secondary pollutants. Anaerobic technology is a commonly used biochemical treatment technology in the treatment of high-concentration organic wastewater, and it is also the most economical high-concentration organic wastewater treatment technology. Benefits, so people have been working hard to develop new anaerobic technology and develop anaerobic reactors with more advantages. Anaerobic technology is the process of converting organ...

AI Technical Summary

Problems solved by technology

Usually, there are several ways to mix the internal mud and water in the anaerobic reactor: (1) No stirring equipment is used, and the biogas and influent water generated by itself are used for stirring. There is a short flow phenomenon in this reactor, which affects the processing capacity, and the operation starts It takes a long time and is sensitive to sudden changes in water quality and load; (2) External circulating water is stirred, and the water at the top of the reactor or the effluent is sent to the lower part of the reactor by a circulating pump, and the rising flow rate is increased to mix the mud and water. External power is required, energy consumption is high, and there is also a dead zone; (3) mechanical stirring, a stirring paddle is set at the bottom of the reactor, and a motor is set at the top, and the two are connected by a connecting shaft, and the stirring paddle is driven by the motor to stir. The method has high energy consumption, large vibration, and high noise, and the anaerobic reactor is usually high, and the connecting shaft is too long, which is prone to failure

[0003] Therefore, most of the devices currently used in high-concentration organic wastewater treatment projects have problems such as low treatment efficiency, high energy consumption, low organic load, uneven water distribution, and weak shock load resistance.

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