Composite suspension filtration material with denitrification function

A suspension filter material and composite technology, which is applied in special compound water treatment, granular microbial carrier treatment, water pollutants, etc., can solve the problems of unfavorable microbial adhesion biofilm formation, impact load, long hydraulic retention time, etc. , to achieve the effect of easy regeneration of ion exchange performance, stable properties and good effect

Pending Publication Date: 2018-08-03
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The main purpose of the present invention is to overcome the deficiencies in the prior art, and aim at the defects that the above-mentioned various filter materials exist, such as the density is too large or too small; the required hydraulic retention time is too long, which is not conducive to rapid filtration; The formation of biofilm, or although it can form biofilm, is susceptible to the impact of hydraulic shock load, etc., to provide a new filter material for suspension fast filter

Method used

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  • Composite suspension filtration material with denitrification function
  • Composite suspension filtration material with denitrification function
  • Composite suspension filtration material with denitrification function

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Embodiment Construction

[0036] Embodiments of the present invention will be described in detail below. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0037] refer to Figure 1 to Figure 4 , In one embodiment, a composite suspension filter material with denitrification function includes a polyurethane sponge 1 with a zeolite 2 embedded in the polyurethane sponge 1 .

[0038] In a preferred embodiment, the polyurethane sponge 1 is cube-shaped.

[0039] In a more preferred embodiment, the cube side length of the polyurethane sponge 1 is 10-50 mm.

[0040] In a further preferred embodiment, the cube side length of the polyurethane sponge 1 is 15-25mm.

[0041] In a particularly preferred embodiment, the cube side length of the polyurethane sponge 1 is 20mm.

[0042] In a preferred embodiment, the pore density of the polyurethane sponge 1 is 30-40ppi.

[0043] In a particularly preferred embodiment, ...

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Abstract

The invention discloses a composite suspension filtration material with a denitrification function. The filtration material comprises polyurethane sponge, wherein zeolite is embedded into the polyurethane sponge. The filtration material is suitable for a biochemical function of a rapid suspension filter, has a good entrapment and absorption effect on suspended pollutants, and good effects of microorganism attachment, biological membrane formation and biological membrane protection, and therefore, can better exert rapid filtration and biochemical treatment effects; and the embedded zeolite hasthe characteristics of unique absorbability, ion-exchange property and easy regeneration and can exert a good effect of removing nitrogen and phosphorus from wastewater.

Description

technical field [0001] The invention relates to a composite suspension filter material with denitrification function. Background technique [0002] In rainy days in the combined drainage area, with the increase of rainfall, the rainwater runoff will increase accordingly. When the pipeline flow exceeds the conveying capacity of the intercepting main pipe, overflow will occur, and part of the mixed rainwater and sewage will pass through the overflow well or pumping station The overflow caused by discharge into the receiving water body is the combined sewer overflows (CSO). After urban point source pollution is gradually controlled, urban CSO, as a typical non-point source pollution, has become an important cause of water environment pollution and ecological system imbalance in cities around the world. If urban CSO is not controlled, the pollutants directly discharged into natural water bodies will Seriously damage the water quality of urban water bodies and affect the restora...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F101/10C02F101/16
CPCC02F3/00C02F2305/06C02F2101/16C02F2003/001C02F2101/105
Inventor 管运涛栾明强
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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