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Method for manufacturing ionic enzymatic suspended filler for highly difficult waste water treatment

A technology for wastewater treatment and suspending fillers, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc. To achieve the effect of accelerating the adsorption speed, improving the effect and improving the affinity

Active Publication Date: 2012-05-02
SHANGHAI HONESS ENVIRONMENTAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a manufacturing method for ionic enzymatic suspension fillers applied to the treatment of high-difficulty wastewater, which effectively solves the problems of slow adsorption of microorganisms on the surface of biofilm fillers in the prior art, poor affinity between the filler surface and microorganisms, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The polyvinylpyridinium salt and the microbial growth promoter are added to the first fiber for preparing the filler proposed by the present invention, so that the surface of the carrier has a positive charge and the microbial growth is promoted.

[0021] The melting temperature of the second fiber is about 10-100°C lower than that of the first fiber, and the best effect is when the temperature difference of the melting temperature is 30-80°C.

[0022] If the weight ratio of the first fiber to the second fiber is lower than 0.667:1, the shape retention performance and mechanical strength of the carrier are not good; if the weight ratio of the first fiber to the second fiber is higher than 4:1, the first fiber Mutual bonding is insufficient, and the mechanical strength of the carrier is poor.

[0023] The thickness of the first fibers is 40 to 400 deniers, preferably 50 to 200 deniers. If the thickness is less than 40 deniers, the shape retention performance and mechanic...

Embodiment 1

[0028] Add 10% polyvinyl alcohol, 5% polyvinylpyridinium salt, and 1% microbial growth promoter C to polypropylene slices with a melting temperature of 160°C 0 2+ , after high-speed stirring and mixing, the first fiber of 100 denier was obtained by melt spinning.

[0029] Be that the 10 denier ES fiber (the second fiber) of 120 ℃ is made fabric with the first fiber and melting temperature, wherein the usage ratio of the first fiber and the second fiber is 5:5; The fabric and the weight that will obtain are 50g / m 2 The non-woven fabric used as the bottom layer is laminated and connected by repeated needle punching to obtain a laminate of fabric and non-woven fabric; the laminate obtained by needle-punching from one side of the fabric with a raising needle is provided with the first fiber on the surface of the non-woven fabric. Fluffing: The laminate provided with fluffing was heated at a temperature of 140° C., thereby melting the second fibers and bonding the first fibers to ...

Embodiment 2

[0032] Add 5% polyacrylamide, 3% polyvinylpyridinium salt, and 0.5% microbial growth promoter C to polypropylene slices with a melting temperature of 170°C 0 2+ , after high-speed stirring and mixing, the first fiber of 120 denier was obtained by melt spinning.

[0033] Be that the 5 denier ES fiber (the second fiber) of 110 ℃ is made fabric with the first fiber and melting temperature, wherein the use ratio of the first fiber and the second fiber is 4:6; The fabric and the weight that will obtain are 100g / m 2 The non-woven fabric used as the bottom layer is laminated and connected by repeated needle punching to obtain a laminate of fabric and non-woven fabric; the laminate obtained by needle-punching from one side of the fabric with a raising needle is provided with the first fiber on the surface of the non-woven fabric. Fluffing: The laminate provided with fluffing was heated at a temperature of 150° C., thereby melting the second fibers and bonding the first fibers to each...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a method for manufacturing an ionic enzymatic suspended filler for highly difficult waste water treatment, which belongs to the technical field of waste water treatment. The ionic enzymatic suspended filler is manufactured by processes of fiber spinning, needling, fluffing, heat setting and the like. The ionic enzymatic suspended filler is made from a fabric consisting offirst fibers of polyolefin resin and second fibers of the polyolefin resin with a melting temperature lower than that of the first fibers, and a non-woven fabric as an underlayer; the fabric is connected to the non-woven fabric by a needling method; and the first fibers are mutually adhered, and are adhered to the non-woven fabric by melting the second fibers. The method has the advantage that: the suspended filler obtained by the method has the characteristics of large specific surface area, good mechanical strength, strong tolerance, good biological adhesion performance, easy membrane hanging, promotion of microbial growth, easy filling and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method for manufacturing an ionic enzymatic suspension filler applied to the treatment of high-difficulty sewage. Background technique [0002] In sewage purification treatment technology, biofilm method is a common treatment method, which has a good effect on the treatment of high-difficulty wastewater rich in organic matter, and is widely used in the treatment of urban sewage and high-concentration organic industrial wastewater. The biofilm method refers to the method of setting a fixed carrier with a biofilm on the surface where the sewage flows. The principle is to use biological oxidation to degrade the organic pollutants in the sewage when the sewage flows through the biofilm. The essence of this treatment method is to make microorganisms and protozoa, metazoans and other micro-animals grow and develop on fillers or other carriers, and form a film-like biological...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 王文标任天斌
Owner SHANGHAI HONESS ENVIRONMENTAL TECH CORP
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