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A deep denitrification V-type filter

A deep denitrification and filter technology, used in water pollutants, water/sludge/sewage treatment, chemical instruments and methods, etc. The effect of high filtration rate, small footprint and large hydraulic load

Active Publication Date: 2017-06-30
SUEZ WATER TREATMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The DN denitrification filter has excellent performance in nitrogen removal, but the concentration of phosphorus and suspended solids in the effluent is high, and it cannot be used in areas where the sewage discharge standards are stricter (such as TP<0.5mg / L, SS<5mg / L). effective satisfaction

Method used

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  • A deep denitrification V-type filter
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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the content described here is only for illustration and explanation of the present invention, and is not intended to limit the present invention.

[0024] The invention is a downward flow biological filter, which is applied to sewage treatment. More specifically, the present invention is a downward flow system relying on gravity filtration, using a heavy filter material, the filter bed is completely submerged in water, and simultaneously achieves the functions of effective denitrification, phosphorus removal and removal of suspended solids. This biological filter process can be regarded as advanced treatment, used after the secondary treatment of sewage.

[0025] exist figure 1 , figure 2 In the shown embodiment, a single V-shaped biofilter is composed of the following components: a rectangular water tank, V-shaped water inlet and sweepi...

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Abstract

The invention discloses a V-shaped filter for deep denitrification, which is composed of a V-shaped water inlet channel, a backwash drainage tank, a filter body, a backwash inlet pipe, a backwash water inlet pipe and an outlet pipe. The water inlet channel is located at the top of the filter tank , the filter is filled with filter material, the bottom of the filter is filled with a support layer and a filter head is installed, and the backwash air pipe, backwash water inlet pipe, and water outlet pipe are located at the bottom of the filter. It has the advantages of small area, good nitrogen and phosphorus removal effect, good suspension removal effect, good effluent water quality and simple operation and maintenance.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a V-shaped biofilter suitable for synchronous denitrification, phosphorus removal and suspended matter removal for advanced sewage treatment. Background technique [0002] Typical sewage water quality generally includes organic matter, nitrogen, phosphorus and suspended solids. With the increasing environmental protection norms and standards, before the treated water is reused or discharged into the environmental water body, it is necessary to effectively remove the nitrogen, phosphorus and suspended solids in the water body, especially to avoid the treated water discharged into the environmental water body Excessive nitrogen and phosphorus content causes eutrophication of the water body, and the nitrogen and phosphorus content has been strictly limited in the sewage treatment discharge standard. [0003] In terms of removing suspended solids and phosphorus, the V-type filter has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F101/16C02F101/10
Inventor 裴瀚迪陆子维
Owner SUEZ WATER TREATMENT CO LTD
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