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V-shaped filter tank for deep denitrogenation

A deep denitrification and filter technology, which is applied in the fields of water pollutants, water/sludge/sewage treatment, chemical instruments and methods, etc. The effect of small area, high processing filtration rate and large hydraulic load

Active Publication Date: 2015-11-18
SUEZ WATER TREATMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • V-shaped filter tank for deep denitrogenation

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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 tank for deep denitrogenation. The V-shaped filter tank comprises a V-shaped water inflow channel, a back washing drainage channel, a filter tank body, a back washing air inlet pipe, a back washing water inlet pipe and a water outlet pipe, wherein the water inflow channel is arranged at the top of the filter tank body; the filter tank body is filled with a filter material; the bottom of the filter tank body is filled with a bearing layer; filter plates and filter heads are mounted at the bottom of the filter tank body; the back washing air inlet pipe, the back washing water inlet pipe and the water outlet pipe are arranged at the bottom of the filter tank body. The V-shaped filter tank has the advantages that the water power load is low; the occupied area is small; the nitrogen and phosphorus removal effects are high; the suspended matter removing effect is high; the effluent quality is excellent; the running and the maintenance are simple.

Description

Technical field [0001] The invention relates to the field of sewage treatment, in particular to a V-type biological filter suitable for simultaneous denitrification, phosphorus removal and suspended matter removal for advanced sewage treatment. Background technique [0002] Typical wastewater quality generally includes organic matter, nitrogen, phosphorus and suspended solids. With the increasing improvement of environmental protection regulations and standards, nitrogen, phosphorus and suspended solids in the water must be effectively removed before the treated water is reused or discharged into the environmental water body, especially the treated water to avoid being discharged into the environmental water body. Excessive nitrogen and phosphorus content causes eutrophication of water bodies. Sewage treatment discharge standards have strictly limited nitrogen and phosphorus content. [0003] In terms of removing suspended solids and phosphorus, the V-type filter has good t...

Claims

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Application Information

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Patent Type & Authority Applications(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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