Combined micro-aerobic baffled bio-reaction device (WABR)

Abstract

The invention discloses a combined micro-aerobic baffled bio-reaction device (WABR). Two sides of a shell are provided with a water inlet pipe and a water outlet pipe, the bottom of the shell is provided with a gas distribution pipe, and the top of the shell is provided with a biogas pipe; the inside of the shell is divided into a plurality of reaction chambers by a plurality of groups of upper and lower baffles, and the reaction chambers communicate by a water passage between the upper and lower baffles; the lower parts of the reaction chambers are provided with supporting parts, and the upper parts of the supporting parts are provided with suspension ball packing and flow separation ball packing; and alkali adding holes are formed in front sections of reaction chambers. The combined micro-aerobic baffled bio-reaction device has the characteristics such as simple process, high water quality adaptability, low investment, low operation expense, high treatment capability and high efficiency; and compared with the traditional anaerobic biological tank, the combined micro-aerobic baffled bio-reaction device does not need a mechanical stirring device, a three-phase separator and a secondary sedimentation tank, is integrated with a biofilm method and an activated sludge method and is a novel practical environment-friendly device.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to an efficient composite micro-oxygen folded plate biological reaction device. Background technique [0002] Sewage anaerobic treatment technology has the characteristics of low investment, low operating cost and the ability to generate recycled energy (biogas), so it has developed rapidly. The anaerobic bioreactors used for anaerobic treatment mainly include upflow anaerobic sludge bed reactor (UASB), expanded granular sludge bed (EGSB), anaerobic baffle reactor (ABR), etc. In the actual operation process, due to some problems caused by changes in the quality and quantity of influent water and structural design, it has caused defects such as difficulty in system startup, serious sludge loss, low removal efficiency, and poor system stability. [0003] ABR (anaerobic baffle reactor) is a high-efficiency anaerobic reactor developed by McCarty et al. on the basis of summariz...

AI Technical Summary

Problems solved by technology

However, there are also some problems. Compared with single-stage anaerobic reactors under the same total load conditions, the load on the first chamber of the ABR reactor is much greater than the average load, causing local load overload; another problem is There are also common weaknesses of anaerobic reactors, that is, the concentration of COD in the effluent is high, and it is difficult to meet the discharge standards

Images