Sewage treatment method and filtering pool

A treatment method and technology for sewage, applied in the directions of aerobic and anaerobic process treatment, etc., can solve the problems of complex facility structure, large land occupation, high investment, etc., and achieve denitrification treatment, increase carbon content, and simplify the process. Effect

Inactive Publication Date: 2006-07-26
甘肃金桥给水排水设计与工程有限公司
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  • Abstract
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Problems solved by technology

[0004] 1. Since each treatment pool is arranged horizontally, it needs to occupy a large area of ​​land, and the facility structure is relatively complicated
[0005] 2. In order to realize the flow of sewage between the treatment pools, it is necessary to use multiple water pumps to transport sewage, and to build multiple pools at the same time, so it also requires high investment
[0006] 3. In the existing technology, in order to ensure that the filter material and microorganisms in the filter tank can have sufficient contact reaction with the sewage, it is necessary to equip the stirring equipment and carry out sufficient stirring during the sewage treatment operation, so its energy consumption is relatively high
[0007] 4. The anoxic denitrification treatment in the prior art often affects its treatment effect due to the low carbon content in the sewage

Method used

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  • Sewage treatment method and filtering pool

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Embodiment Construction

[0018] In the embodiment of the present invention, it is composed of a biological aeration tank 1, a sewage tank 7 to be treated, and connected pipelines. In this embodiment, the diameter of the aeration tank 1 is 400 mm, the total height is 4150 mm, and the height of the entire filter material layer is 2500 mm. The support layer 9 that useful pebble is formed at the bottom of pool 1, and sewage inlet pipe 15 and backwash water pipe 11, recoil air pipe 12 are also located in support layer 9. A filter material with microorganisms is placed on the supporting layer 9, and an air distribution system consisting of aeration tubes 10 is arranged in the filter material layer above the supporting layer. The filter material layer on the upper part of the aeration tube and the aeration tube The height ratio between the lower filter material layers is about 3.5 to 1. It can be seen from the figure that there is a section of space between the supporting layer and the aeration tube 10, and...

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Abstract

The invention relates to a treatment method for sewage. Wherein, keeping the sewage flowing from lower to upper during the whole process; first, taking denitrifying treatment in hypoxia segment to remove total nitrogen and phosphorus; then, treating in aerobic segment to reduce the COD, BOD5 and SS as well as the ammonia nitrogen by nitration. Besides, the opposite equipment is a vertical-arranged bioaeration filter tank with an aeration pipe on proper position.

Description

technical field [0001] The invention relates to a method for treating sewage and a sewage treatment facility for sewage treatment using the method of the invention. The method of the invention includes making the sewage to be treated pass through the raw aeration filter of the aerobic nitrification treatment section and the anoxic denitrification treatment section. Background technique [0002] The existing sewage treatment method is to make the sewage to be treated sequentially enter the horizontally arranged sewage treatment areas, such as sewage sedimentation tanks, aerobic nitrification treatment areas, anoxic denitrification treatment areas, etc., and perform corresponding purification treatment respectively. The treatment device matched with the existing sewage treatment process is a series of treatment pools arranged horizontally in series. From the late 1980s to the 1990s, biological aerated filters (BAF) were produced on the basis of ordinary biological filters, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 邱熔处王刚
Owner 甘肃金桥给水排水设计与工程有限公司
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