Energy-saving tower-type internal circulation reactor

Abstract

The invention discloses an energy-saving tower-type internal circulation reactor. The energy-saving tower-type internal circulation reactor comprise an inner tower, an outer tower, an entering water distribution pipe and a water producing pipe, the inner tower is arranged in the outer tower, an inner overflow weir is arranged at the top end of the side wall of the inner tower, a cofferdam ring isfixedly connected to the outside of the inner overflow weir, an outer overflow weir is arranged on the side wall, away from the inner tower, of the cofferdam ring, the height of the outer overflow weir is smaller than the height of the inner outer overflow weir, a membrane bio-reactor (MBR) membrane reaction unit is arranged at the upper end in the inner tower, a channel is formed in the lower endin the inner tower, an aerator is arranged in the channel, the aerator is located under the MBR membrane reaction unit, an aerobiotic biological membrane reaction area, an anoxic and anaerobic biological membrane reaction area and a mud sump area are arranged between the outer tower and the inner tower, the aerobiotic biological membrane reaction area is filled with aerobiotic biological fillers,and the anoxic and anaerobic biological membrane reaction area is filled with an anoxic and anaerobic biological filler. According to the energy-saving tower-type internal circulation reactor, underthe premise of ensuring that the water quality of produced water reaches the standard and is stable, operation energy consumption can be significantly reduced, and the construction land is saved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to an energy-saving tower-type internal circulation reactor. Background technique [0002] With the development of social economy and the improvement of people's living standards, the discharge of various types of non-waste water has increased, and the state has also put forward higher requirements for sewage (waste) water treatment. At present, due to the advantages of flexible installation and stable treatment effect, membrane-bioreactor is widely used in the treatment of medium and small-scale low-concentration organic wastewater in cities (towns) and towns, and the effluent can reach the first-class A standard stipulated in GB18918-2002 . [0003] However, in addition to maintaining the oxygenated aeration required for biological treatment, traditional membrane bioreactors also need to continuously flush the membrane with air. Compared with conventional biological ...

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Problems solved by technology

[0003] However, in addition to maintaining the oxygenated aeration required for biological treatment, traditional membrane bioreactors also need to continuously flush the membrane with air. Compared with conventional biological treatment, the total aeration is about 50% higher. The pool causes a great waste of dissolved oxygen, consuming electricity in vain; at the sam...

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