Helical flow dephosphorization reactor

Abstract

The invention provides a helical flow dephosphorization reactor. The helical flow dephosphorization reactor comprises a pre-backwashing zone, a gas stripping lifting zone, a water discharging zone, a filtering zone, a water feeding zone, a backwashing zone and a solid-liquid separation zone from bottom to top; the pre-backwashing zone comprises an inverted bench body, and an escape tube is arranged below the inverted bench body; the gas stripping lifting zone comprises a gas stripping tube, and the lower end of the gas stripping tube is provided with a gas stripping gas inlet tube; the water discharging zone comprises a filtered water collecting tube, and the filtered water collecting tube is coaxially arranged outside the gas stripping tube; the filtering zone comprises a lower cylinder, and the lower cylinder is coaxially arranged outside the filtered water collecting tube; the water feeding zone comprises a water feeding tube, and the water feeding tube is connected with the upper end of the lower cylinder; the backwashing zone comprises a backwashing air tube, the backwashing air tube is connected with the upper end of the gas stripping tube, and an efficient stripping tube is connected with the top of the gas stripping tube; and the solid-liquid separation zone comprises an upper cylinder, and the upper cylinder is connected with the top of the lower cylinder. The reactor has the advantages of continuous running, tending towards a laminar flow state, small dead zone area, high filtering and backwashing efficiency, reasonable and concise structure, convenient processing and convenient popularization application.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, in particular to a spiral flow phosphorus removal reactor. Background technique [0002] Environmental pollution and resource shortage are two major problems facing the world today. Chemical plants, farms, laundry rooms, etc. will produce a large amount of phosphorus-containing wastewater. If it is discharged without treatment, it will cause eutrophication of the water body, causing water pollution, and then causing serious ecological problems, such as water eutrophication. On the other hand, phosphorus is an essential element for crop growth and chemical products. It can not only be used as a slow-release fertilizer for agricultural production and flower planting, but can even be made into detergents and cosmetics. The general biological phosphorus removal method is greatly affected by dissolved oxygen, temperature, hydraulic impact load, operating conditions, etc., and the phospho...

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Problems solved by technology

[0010] For ordinary crystallization filtration technology, because it is divided into two independent operation processes of filtration and backwashing, when the filter channel of the filter material layer is blocked, the filtration process has to be stopped and backwashing is performed, so the work efficiency is limited

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