Community closed medium water landscape water system organism gas float BOAG treatment method and device

Abstract

Provided is a BOAF treating method for purifying the water landscape, water system and water quality in the sealed small social region and the apparatus thereof. The method substitutes a drug feeding system necessary for all of the gas flotation apparatus by a biological reacting pool, mixes the original water in the water landscape and water system in the sealed small social region with the active bio-floculation from the BOAF pool. A mixed liquid flow formed by depositing in the biochemical reacting pool for a certain period is flowing into the BOAF pool for a treatment. The water output from the BOAF pool is returned to the water landscape and water system after sterilizing by the ultraviolet sterilizer. The mixing liquid flowing into the BOAF pool obtains a separation of the water output and the active bio-floculation by the means of gas flotation. The active bio-floculation returns to the front end of the biochemical reacting pool and continues to mix with the original water for a recycle reaction. A small part of water output forms the gas dissolving water and returns to the BOAF pool to provide slight bubbles for the bio-floculation separation. The system apparatus ensures a qualified landscape water and keeps a water environment balance in the water system in the sealed small social region.

Description

technical field [0001] The invention relates to a BOAF treatment method and a system device for purifying the water quality of a landscape water system in closed reclaimed water in a residential area, and belongs to the technical fields of water treatment technology and water resource recycling. Background technique [0002] The landscape water system of the community usually has the characteristics of relatively small water area, small water environment capacity, and low water self-purification ability. Especially for slow-flowing water bodies with closed and poor fluidity, climate change, human activities and the surrounding environment will cause pollution to them, resulting in deterioration of water quality. The purification and treatment of landscape water system must be carried out. Looking at the status quo of landscape water system treatment technologies at home and abroad, the landscape water system treatment technologies that have been used or have entered the pil...

AI Technical Summary

Problems solved by technology

Through the construction of BOAF, a treatment method that combines the advantages of biological and air flotation technology and its system device, the water quality purification of the closed reclaimed water landscape water system in the community can be realized, and the nitrogen, phosphorus and soluble pollution that cannot be cured by the current landscape water system treatment method can be solved. object problem

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