Air-float filter pool

Abstract

The invention relates to a floatation filtering pool, which is characterized in that: a solution gas discharge device is arranged in an turnover filtering pool, which is communicated with a solution gas cylinder by a pipeline. The flocculation poor is communicated with the front end of the turnover filtering pool by a water inflow main ditch , a floatation contact zone is arranged at the front part of the turnover filtering pool, the entrance of the floatation contact zone is arranged at the bottom of the front end of the floatation contact zone, the exit of the floatation contact zone is arranged on the rear end of the floatation contact zone, the solution gas discharge device is arranged close to the entrance in the floatation contact zone. The turnover filtering pool adopts SBR flushing, without arranging a centre waterspout, which improves the effective filtering area of the filtering pool, the water is distributed up and down evenly after lamination with the floatation filtering pool to ensure the quality of the yielding water. Besides, floatation can be laminated under the situation of not increasing the depth of the orginal turnover filtering pool. The invention has the advantages that: the floatation and the turnover filtering pool are laminated together, which achieves the aims of saving space, optimizing purifying technics and simplifying the flow of production and management.

Description

Technical field: [0001] The invention relates to a water quality treatment structure of a waterworks, in particular to an air flotation filter formed by stacking an air flotation and a filter. Background technique: [0002] At present, when dealing with high-algae water or low-temperature and low-turbidity water, the tap water industry often adopts the technology of first air flotation and then filtration. The traditional air flotation pool is rectangular, the width of a single cell does not exceed 10m, the length of the pool does not exceed 15m, the effective water depth is generally about 2m, and the hydraulic load is usually 5.4-9.0m 3 / (m 2 × h). The traditional air flotation pool has the following disadvantages: [0003] 1. The depth of the air flotation pool is shallow, and it is difficult to connect with the elevation of the subsequent treatment structures. [0004] 2. The air flotation tank adopts perforated water collection pipes to collect water unevenly, which...

AI Technical Summary

Problems solved by technology

[0003] 1. The depth of the air flotation pool is shallow, and it is difficult to connect with the elevation of the subsequent treatment structures

[0004] 2. The air flotation tank uses perforated water collection pipes to collect water unevenly, which affects the water quality of the effluent and the improvement of water production.

[0005] 3. During the long-term operation of the air flotation tank, mud will accumulate at the bottom of the tank or even block the perforated pipe, which requires regular manual cleaning

Although this kind of superimposition will not disturb the scum layer and affect the slag discharge of the air flotation tank like the moving cover filter when it is running, the layout of the central drainage tank or sand washing drainage tank will cause uneven water distribution on the upper and lower sides

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