Bioreactor based on automatic float sludge breaking and circulation

Abstract

The invention disclose a bioreactor based on automatic float sludge breaking and circulation. The bioreactor comprises a separation zone, a reaction zone, and a water distribution zone that are connected in sequence, wherein the separation zone comprises an exhaust port, an air chamber, a water outlet, a sludge circulation barrel, an annular settling tank, a diversion slot, a liquid spray pipe, a transverse partition, a float sludge collecting chamber and a sludge suction pipe; the separation zone is sequentially provided with the exhaust port, the air chamber, the water outlet, the sludge circulation barrel, the transverse partition and the float sludge collecting chamber from the top down; the liquid spray pipe is arranged on the transverse partition in a penetrating manner; the sludge suction pipe is arranged on the lower surface of the transverse partition; the annular settling tank is arranged outside the air chamber and the sludge circulation barrel; the water outlet is formed at the upper part of the annular settling tank; the diversion slot is formed at the lower end of the annular settling tank; and a water distributor is arranged at the bottom of the water distribution zone. The granule sludge bioreactor is applicable to removing bubbles attached to the surface of granule sludge, breaking air bags in the granule sludge and restoring settleability of the float granule sludge, and the operating performance of the granule sludge bed reactor is guaranteed.

Description

technical field [0001] The invention relates to a bioreactor, in particular to a bioreactor based on the automatic crushing cycle of floating mud. Background technique [0002] In the biological treatment of wastewater, microorganisms are the key to the performance of the reactor. In the existing high-efficiency granular sludge bed reactor, microorganisms mainly exist in the form of granular sludge. The settling performance of granular sludge is closely related to microbial retention, which is directly related to the operating performance of the bioreactor. In the anaerobic ammonium oxidation reactor, since the product of the reaction of ammonia nitrogen and nitrous nitrogen is nitrogen, the gas production is large under high load, and the nitrogen will adhere to the surface of the granular sludge in the form of bubbles or stay in the air pockets inside the granular sludge In the process, the density of the granular sludge is lower than that of the reaction liquid, and the...

AI Technical Summary

Problems solved by technology

In the anaerobic ammonium oxidation reactor, since the product of the reaction of ammonia nitrogen and nitrous nitrogen is nitrogen, the gas production is large under high load, and the nitrogen will adhere to the surface of the granular sludge in the form of bubbles or stay in the air pockets inside the granular sludge In the process, the density of the granular sludge is lower than that of the reaction liquid, and the floating loss causes the performance of the reactor to deteriorate, or even collapse.

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