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Electronic donor type biological carrier and preparation method thereof

A technology of biological carrier and electron supply, applied in the direction of fixing on/in organic carrier, biological treatment device, chemical instrument and method, etc., can solve the problems of low membrane biomass, long membrane hanging time, poor compatibility, etc. , to achieve the effect of enhancing hydrophilicity, enhancing activity, and enhancing tensile toughness

Inactive Publication Date: 2018-06-19
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw materials for the preparation of such carriers are usually organic polymers, such as polyethylene, polystyrene, polyvinyl chloride, polypropylene, vinylon, etc., which have many defects, such as the surface is negatively charged, and the hydrophilicity is poor, resulting in It has poor compatibility with the microorganisms in the water phase (generally, the surface of the microorganisms is negatively charged and hydrophilic), which leads to a long time for the membrane to hang on the membrane, less biomass of the membrane, and easy shedding, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] With 200g of HDPE powder as the base material, 4g of polyquaternium-10, 2g of zero-valent zinc, and 2g of talcum powder are added in sequence, and fully mixed in a sealed container to form raw material 1. Raw material 1 is passed through a granulator to produce granular samples. The first zone of the barrel of the granulator is 160°C, the second zone of the barrel is 170°C, the third zone of the barrel is 180°C, and the head zone is 160°C. The strips extruded from the die head The product is then air-cooled and diced to become a granular sample (referred to as raw material 2). Raw material 2 is passed through the injection molding machine to produce the carrier. The first zone of the barrel of the injection molding machine is 135°C, the second zone of the barrel is 160°C, the third zone of the barrel is 180°C, and the head zone is 155°C. Vacuum calibrating sets with a vacuum degree of 0.03MPa are shaped and sized, cooled by cooling water, and cut into cylindrical finish...

Embodiment 2

[0021] With 200g of HDPE powder as the base material, 4g of polyquaternium-10, 4g of zero-valent zinc, and 2g of talcum powder are added in sequence, and fully mixed in a sealed container to form raw material 1. Raw material 1 is passed through a granulator to produce granular samples. The first zone of the barrel of the granulator is 160°C, the second zone of the barrel is 170°C, the third zone of the barrel is 180°C, and the head zone is 160°C. The strips extruded from the die head The product is then air-cooled and diced to become a granular sample (referred to as raw material 2). Raw material 2 is passed through the injection molding machine to produce the carrier. The first zone of the barrel of the injection molding machine is 135°C, the second zone of the barrel is 160°C, the third zone of the barrel is 180°C, and the head zone is 155°C. Vacuum calibrating sets with a vacuum degree of 0.03MPa are shaped and sized, cooled by cooling water, and cut into cylindrical finish...

Embodiment 3

[0023] With 200g of HDPE powder as the base material, 4g of polyquaternium-10, 4g of sodium sulfide, and 2g of talcum powder are added in sequence, and fully mixed in a sealed container to form raw material 1. Raw material 1 is passed through a granulator to produce granular samples. The first zone of the barrel of the granulator is 160°C, the second zone of the barrel is 170°C, the third zone of the barrel is 180°C, and the head zone is 160°C. The strips extruded from the die head The product is then air-cooled and diced to become a granular sample (referred to as raw material 2). Raw material 2 is passed through the injection molding machine to produce the carrier. The first zone of the barrel of the injection molding machine is 135°C, the second zone of the barrel is 160°C, the third zone of the barrel is 180°C, and the head zone is 155°C. Vacuum calibrating sets with a vacuum degree of 0.03MPa are shaped and sized, cooled by cooling water, and cut into cylindrical finished...

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PUM

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Abstract

The invention discloses an electronic donor type biological carrier and a preparation method thereof. The biological carrier is mainly applied to a low-oxygen suspended carrier biomembrane process. Anelectronic donor with standard electrode potential being less than 100 mV is used as a feature modified functional material and the traditional carrier is modified in a blending modification manner,so that the electronic donor type biological carrier is prepared. The biological carrier provided by the invention is favorable for enrichment of a membrane biological functional flora and improvementon the treatment property of a low-oxygen suspended carrier biomembrane reactor.

Description

technical field [0001] The invention relates to a preparation method of a biological carrier (also called "biological filler") for biochemical treatment of domestic, agricultural and industrial wastewater. The electron donor type biological carrier prepared by the method of the present invention not only has the advantages of hydrophilicity and electrophilicity, but also has good performance in the degradation of wastewater by the suspension carrier biofilm method in low oxygen (including anaerobic, anoxic and synchronous nitrification and denitrification) Performance. Background technique [0002] At present, the aerobic moving bed biofilm reactor (MBBR) and the integrated fixed film activated sludge process (IFAS), which are typical representatives of suspended carrier biofilm technology, have attracted extensive attention due to their efficient nitrogen removal. However, the low-oxygen suspended carrier biofilm technology has some limitations and its application is relat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/28C02F3/30C12N11/08
CPCC02F3/2853C02F3/302C02F3/34C02F2203/004C12N11/08
Inventor 全燮施燕平陈硕张耀斌刘涛
Owner DALIAN UNIV OF TECH
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