阅读说明：本技术 一种富氧功能的生物膜填料 (Biomembrane filler with oxygen enrichment function ) 是由 李洋 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种富氧功能的生物膜填料,属于污水处理技术领域,该富氧功能的生物膜填料由以下原料组成：高密度聚乙烯90％、磁性纳米Fe<Sub>3</Sub>O<Sub>4</Sub>颗粒5％-8％及亲水母料2％-5％。本发明所提供的产品氧气利用率明显提高,同时在物理特性上,生物膜填料的孔径,膜面积,都明显增大,扩大池容,减少占地面积,且使用寿命长,折旧率低,破损率低,有效的节约一个城市污水处理厂的运行成本。(The invention discloses a biomembrane filler with an oxygen enrichment function, which belongs to the technical field of sewage treatment and consists of the following raw materials: high density polyethylene 90% and magnetic nano Fe 3 O 4 5-8% of particles and 2-5% of hydrophilic master batch. The product provided by the invention has the advantages that the oxygen utilization rate is obviously improved, the aperture and the membrane area of the biological membrane filler are obviously increased on the physical characteristic, the tank capacity is enlarged, the occupied area is reduced, the service life is long, the depreciation rate is low, the damage rate is low, and the operation cost of an urban sewage treatment plant is effectively saved.)

1. The biomembrane filler with the oxygen enrichment function is characterized by comprising the following components:

in percentMetering: high density polyethylene 90% and magnetic nano Fe₃O₄5-8% of particles and 2-5% of master batch with strong hydrophilicity.

2. An oxygen-rich functional biofilm filler as claimed in claim 1, wherein said oxygen-rich functional biofilm filler comprises the following components:

measured by percentage: high density polyethylene 90% and magnetic nano Fe₃O₄6.5 to 7 percent of particles and 3.5 to 4.5 percent of master batch with strong hydrophilicity.

3. An oxygen-rich functional biofilm filler according to claim 1 or 2, wherein the strong hydrophilic masterbatch is one of modified polypropylene resin particles, polyurethane particles and polyethylene glycol methacrylate particles.

4. An oxygen-rich functional biofilm filler according to claim 1, wherein said biofilm filler preparation comprises the following steps:

(1) respectively taking high-density polyethylene and magnetic nano Fe according to percentage measurement proportion₃O₄Granule, strong hydrophilic master batch, high-density polyethylene obtained from the master batch and magnetic nano Fe₃O₄Sequentially adding the particles and the master batch with strong hydrophilicity into a reaction kettle, stirring, and uniformly stirring and mixing to obtain a mixture A;

(2) heating the obtained mixture A in a reaction kettle to a molten state to obtain a product B;

(3) and introducing the product B into an extruder, performing extrusion molding through the extruder, and cooling to obtain the biomembrane filler.

5. An oxygen-rich functional biofilm carrier as claimed in claim 3, wherein the heating temperature of the reaction kettle is 300-350 ℃.

Technical Field

The invention belongs to the technical field of sewage treatment, and particularly relates to a biomembrane filler with an oxygen enrichment function.

Background

The urban population of China accumulates year by year, the urban sewage treatment plant is subjected to upgrading transformation, the conventional MBBR process is characterized in that the conventional biofilm filler is an early spherical filler, the number of the spherical fillers with the pore diameter of 19 is large, the urban population is dense, the sewage treatment plant is insufficient in tank capacity and runs in an overload mode, so that the effluent can only reach the standard completely under the auxiliary action of a medicament, and the operation cost is increased for the sewage treatment plant. The oxygen that the aeration tank supplied can not make full use of because the waste water quality concentration is high, the mud load is high, oxygen demand is big at the aeration tank front end, and the rear end is then opposite, but the air often along the long evenly distributed in pond, this just causes the condition that the front end oxygen supply is not enough, rear end oxygen supply is excessive. The aeration tank is relatively large, occupies a large area, and has high energy consumption and cost.

Disclosure of Invention

The invention aims to provide a biomembrane filler processing liquid with an oxygen enrichment function, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the biomembrane filler with the oxygen enrichment function comprises the following components:

measured by percentage: 60-70% of high-density polyethylene and magnetic nano Fe₃O₄5-8% of particles and 2-5% of master batch with strong hydrophilicity. .

The preferred scheme is as follows: the biomembrane filler with the oxygen enrichment function comprises the following components:

measured by percentage: high density polyethylene 90% and magnetic nano Fe₃O₄6.5 to 7 percent of particles and 3.5 to 4.5 percent of master batch with strong hydrophilicity.

Further, the master batch with strong hydrophilicity adopts one of modified polypropylene resin particles, polyurethane particles and polyethylene glycol methacrylate particles.

Further, the preparation of the biomembrane filler comprises the following steps:

(1) respectively taking high-density polyethylene and magnetic nano Fe according to percentage measurement proportion₃O₄Granule, strong hydrophilic master batch, high-density polyethylene obtained from the master batch and magnetic nano Fe₃O₄Sequentially adding the particles and the master batch with strong hydrophilicity into a reaction kettle, stirring, and uniformly stirring and mixing to obtain a mixture A;

(2) heating the obtained mixture A in a reaction kettle to a molten state to obtain a product B;

(3) and introducing the product B into an extruder, performing extrusion molding through the extruder, and cooling to obtain the biomembrane filler.

Further, the heating temperature of the reaction kettle is 300-350 ℃.

Further, the bactericide is one of inorganic bactericides.

Compared with the prior art, the invention has the beneficial effects that: the product of the invention is firstly based on the material of the oxygen-enriched biomembrane filler, the raw materials are high-density polyethylene, magnetic nano Fe3O4 and strong hydrophilic master batch, and compared with the traditional high-density polyethylene biomembrane filler, the product has high heat resistance and cold resistance, good chemical stability, higher rigidity and toughness and good mechanical strength; the high-density polyethylene biological film filler has the advantages of good dielectric property, good environmental stress cracking resistance, better hardness, tensile strength and creep property than low-density polyethylene, good wear resistance, electrical insulation property, toughness and cold resistance, but slightly poorer insulation property than the traditional high-density polyethylene biological film filler, good chemical stability, no solubility in any organic solvent under room temperature, acid, alkali and various salts corrosion resistance, small permeability of the film to water vapor and air, low water absorption, poor aging resistance, poor environmental cracking resistance compared with the traditional high-density polyethylene biological film filler, and particularly reduced performance due to thermal oxidation, so that the defect of the aspect is improved by adding some master batches. Secondly, according to the chemical properties of the magnetic nano Fe3O4, the oxygen utilization rate of aeration in the aerobic tank is fully utilized, and the oxygen-enriched content in the collected gas is more than or equal to 20.5 percent. Finally, the effective membrane area of the oxygen-enriched biomembrane filler reaches 800 square meters per meter for square meters per meter, and the pore diameter is 37, so that the volume of the biochemical tank can be enlarged to 140 percent of the effect of the existing biomembrane filler, therefore, compared with the biomembrane filler in the common MBBR process, the oxygen-enriched biomembrane filler has the advantages of enlarging the tank volume, reducing the floor area, having the oxygen utilization rate of more than or equal to 20.5 percent, long service life, low depreciation rate and low breakage rate, and effectively saves the operation cost of a municipal sewage treatment plant.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.