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Thin-layer surface-flowing wastewater treatment carrier, and wastewater treatment and thallus recovery system and method

A wastewater treatment and surface flow technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, biomass post-treatment, etc., can solve the problems of slow metabolism of pollutants, loss of bacterial cells, erosion and shedding, etc., to achieve Strengthen photosynthetic heterotrophic metabolism to remove sewage pollutants, strengthen film growth, and improve efficiency

Active Publication Date: 2020-05-12
广东博源环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the use of photosynthetic microorganisms to treat sewage is usually suspended, and the bacteria are lost with the sewage, and the biomass cannot be recovered.
Or the photosynthetic microorganisms are loaded on the filler, but the natural binding force is not tightly adsorbed on the filler, and it is very easy to be washed off by water.
In addition, due to the limited metabolic kinetics of photosynthetic bacteria, the metabolism of pollutants in sewage is relatively slow
Due to the above reasons, the efficiency of sewage treatment and the recovery of bacteria are low

Method used

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  • Thin-layer surface-flowing wastewater treatment carrier, and wastewater treatment and thallus recovery system and method
  • Thin-layer surface-flowing wastewater treatment carrier, and wastewater treatment and thallus recovery system and method
  • Thin-layer surface-flowing wastewater treatment carrier, and wastewater treatment and thallus recovery system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] (1) Preparation of conductive glass with nanohole array on the surface

[0059] Through laser surface etching technology, a nano-hole array is formed on the surface of the conductive glass layer. The etching parameters are: hole spacing 100nm, hole diameter 80nm, hole depth 10nm, and a conductive glass with a nano-hole array on the surface is obtained. ;

[0060] (2) Preparation of carbon-based catalytic layer

[0061] ①Nano-Mn with a particle size of 10nm 3 o 4 , nano-Fe with a particle size of 10nm 3 o 4 According to the mass ratio of 1:2, add it into the 1mol / L potassium chloride electrolyte solution, and sonicate for 30 minutes;

[0062] 2. Under the condition of isolating the air, add pyrrole monomer in the reaction system of step (1), and continue to stir for 60 min; wherein, the consumption of pyrrole is 0.1% of the reaction system volume of step (1);

[0063] ③The carbon paper is immersed in the reaction system of step (2) as an electrode, and then a 0.8V ...

Embodiment 2

[0067] (1) Preparation of conductive glass with nanohole array on the surface

[0068] Through laser surface etching technology, a nano-hole array is formed on the surface of the conductive glass layer. The etching parameters are: the hole spacing is 20nm, the hole diameter is 30nm, and the hole depth is 50nm, and the conductive glass with the nano-hole array on the surface is obtained. ;

[0069] (2) Preparation of carbon-based catalytic layer

[0070] ①Nano-Mn with a particle size of 100nm 3 o 4 , Nano-Fe with a particle size of 100nm 3 o 4 According to the mass ratio of 1:5, add it into 1mol / L potassium chloride electrolyte solution, and ultrasonicate for 60min;

[0071] 2. Under the condition of cutting off air, add pyrrole monomer in the reaction system of step (1), continue to stir for 30min; Wherein, the consumption of pyrrole is 1% of the reaction system volume of step (1);

[0072] ③ carbon paper is immersed in the reaction system of step (2) as an electrode, and ...

Embodiment 3

[0076] (1) Preparation of conductive glass with nanohole array on the surface

[0077] Through laser surface etching technology, a nano-hole array is formed on the surface of the conductive glass layer. The etching parameters are: hole spacing 50nm, hole diameter 40nm, hole depth 40nm, and a conductive glass with a nano-hole array on the surface is obtained. ;

[0078] (2) Preparation of carbon-based catalytic layer

[0079] ①Nano-Mn with a particle size of 60nm 3 o 4 , Nano-Fe with a particle size of 60nm 3 o 4 According to the mass ratio of 1:3, add it into the 1mol / L potassium chloride electrolyte solution, and sonicate for 45 minutes;

[0080] 2. Under the condition of cutting off the air, add pyrrole monomer in the reaction system of step (1), and continue to stir for 45min; wherein, the consumption of pyrrole is 0.5% of the reaction system volume of step (1);

[0081] ③ carbon paper is immersed in the reaction system of step (2) as an electrode, and then a 1.0V con...

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Abstract

The invention belongs to the field of biological treatment and resourceful utilization of wastewater, and specifically relates to a thin-layer surface-flowing wastewater treatment carrier, and a wastewater treatment and thallus recovery system and method. The thin-layer surface-flowing wastewater treatment carrier sequentially comprises a conductive glass layer, an ultrafiltration membrane layer and a carbon substrate catalysis layer, wherein the surface of the conductive glass layer is provided with a nano-pore array. The invention also provides a wastewater treatment and thallus recovery system containing the above-mentioned carrier. By utilization of the system provided by the invention, the wastewater passes through the thin-layer surface-flowing wastewater treatment carrier loaded with photosynthetic bacteria in a manner of slowly flowing on the surface layer of a thin layer; the contact surface and the contact time of the wastewater and the photosynthetic bacteria are increased;meanwhile, photosynthetic electron extraction and electrochemistry are combined to promote metabolism of the photosynthetic bacteria and release of extracellular secretions; the wastewater treatment efficiency and the adsorption strength between the photosynthetic bacteria and the carrier are improved; the adsorption amount is increased; and synchronous highly-efficient wastewater treatment and highly-efficient enrichment and recovery of photosynthetic bacterium thalli are achieved.

Description

technical field [0001] The invention belongs to the field of waste water biological treatment and recycling, and in particular relates to a thin-layer surface flow waste water treatment carrier, a waste water treatment and bacterium recovery system and method. Background technique [0002] Compared with physical and chemical methods, wastewater biological treatment has technical advantages such as economy, high efficiency and green environmental protection. However, the traditional wastewater biological treatment technology produces a large amount of sludge, and subsequent treatment is difficult and expensive. Photosynthetic microorganisms can use solar energy to decompose pollutants in sewage or synthesize their own biomass through assimilation, and photosynthetic microorganisms themselves are a potential biomass resource that can be used to produce high value-added products or biofuels. At present, the use of photosynthetic microorganisms to treat sewage is usually suspen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34B01J31/32B01J31/06C12M1/00C12M1/26
CPCC02F3/34B01J31/06B01J31/32C12M33/00C12M33/02C02F2101/30
Inventor 孙健张鸿郭
Owner 广东博源环保科技有限公司
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