An air flotation sedimentation tank
A settling tank and air flotation technology, which is applied in the direction of flotation water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of large occupied area and complex process, and achieve land saving, simplified operation and management, Effects that are easy to automate
Active Publication Date: 2019-11-08
尚川(北京)水务有限公司 +1
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Problems solved by technology
However, the conventional air flotation tank and sedimentation tank are set separately, which has the defects of large area and complicated process.
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] The object of the present invention is to provide an air flotation settling tank to solve the problems of the above-mentioned prior art, to organically combine the air flotation and the sedimentation process, and to complement each other's advantages, so as to reduce the floor area of the equipment, improve the water quality of the effluent, and reduce the subsequent Biochemical processing load.
[0021] In order to make the above objects, features an...
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The invention discloses an air flotation sedimentation tank. The air flotation sedimentation tank comprises a tank body, a central water distributor and a baffle plate, wherein the central water distributor is arranged in the middle of the tank body; the baffle plate is arranged at the upper part of the tank body; a separation chamber is arranged between the baffle plate and the tank body; the upper part of the central water distributor penetrates into the lower part of the baffle plate; the inner part of the central water distributor is a first reaction chamber; the inner part of the baffle plate is a second reaction chamber; the lower part of the central water distributor is communicated with a raw water tank through a water inlet pipeline; the water inlet pipeline is provided with a dosing pot and a lifting pump; the lower part of the central water distributor is communicated with an air flotation pump through an aeration pipeline; the lower part of the tank body is a concentrationchamber; the bottom of the tank body is communicated with a mud discharging pump through a mud discharging pipeline; the upper part of the tank body is communicated with a water outlet pipe. Accordingto the air flotation sedimentation tank, an air flotation technology and a sedimentation technology are organically combined and advantages are complementary; the occupied area of equipment is reduced, the water quality of output water is improved and the load of subsequent biochemical treatment is alleviated.
Description
technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to an air flotation sedimentation tank. Background technique [0002] Air flotation and sedimentation are relatively common sewage treatment processes, and traditional air flotation tanks are set separately from sedimentation tanks. However, general waste water usually contains various pollutants in oil, grease and suspended solids (SS), and is mixed with some silt and other specific heavy substances. Because the single air flotation process only removes the slag that can be floated, and due to the high flow rate, the sediment and SS that are not suitable for floating will be brought out with the effluent, resulting in a high SS value of the effluent. Therefore, the SS value of the effluent is high. The effluent is not easy to meet the standard, which increases the load of subsequent biochemical treatment. In order to overcome this defect, it must be combined wi...
Claims
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IPC IPC(8): C02F1/24C02F1/52C02F1/56
Inventor 罗涛
Owner 尚川(北京)水务有限公司