View tower type device for water aeration and biological purification, and purification method

Abstract

The invention relates to a view tower type device for water aeration and biological purification. The structure of the view tower type device is a tower type structure, and the device comprises a water outlet 1, a spill pit 2 and an outlet channel 5, wherein the water outlet 1 is formed at the center of the spill pit 2, and the outlet channel 5 is communicated with the water outlet 1; a plurality of functional layers are arranged to surround the spill pit 2, each functional layer comprises a biological ball purification region 3 and a landscape aquatic plant region 4, and the landscape aquatic plant region 4 is arranged to surround the biological ball purification region, one end of the spill pit 2 is connected with a water duct 7, and a water pump 6 is mounted at the other end of the water duct 7. The view tower type device has the advantages that the dissolved oxygen concentration in sewage is improved by virtue of free wall fall, and a biological enhanced treatment function is added so that the treatment efficiency of constructed wetlands can be improved obviously and the water quality of the sewage plant effluent can be improved. Compared with existing techniques, the landscape functions of the constructed wetlands are not damaged, and the landscape effect of the constructed wetlands and the sewage plants also are added. In addition, the view tower type device for water aeration and biological purification is simple in structure, low in construction cost and convenient to repair.

Description

technical field

[0001] The invention relates to a landscape tower type water body aeration and biological purification device and purification method, belonging to the technical field of sewage purification treatment. Background technique

[0002] Constructed wetlands have the characteristics of low investment, low energy consumption, large buffer capacity, and simple process, and have been widely used at home and abroad. Constructed wetlands outside of China usually adopt a planar structure. The sewage stays in the wetland for a long time, the water flow is relatively gentle, and the plant roots and fillers are soaked in water for a long time, resulting in a low level of dissolved oxygen in the constructed wetland matrix, which limits the effect of wetland sewage treatment and increases Constructed wetland area. At present, the aeration and oxygenation of artificial wetlands is mainly realized by cascade water drop oxygenation, aeration pipes arranged at the bottom, and ae...

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