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An all-weather composite photocatalytic synergistic system and its preparation method

A composite photocatalytic and all-weather technology, applied in chemical instruments and methods, light water/sewage treatment, special compound water treatment, etc., can solve problems such as environmental pollution, endangering human health and biological growth and reproduction, and achieve excellent adsorption performance, Good biodegradation activity, improve the effect of degradation efficiency

Active Publication Date: 2019-03-15
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the discharge of phenolic wastewater not only causes serious pollution to the environment, but also endangers human health and biological growth and reproduction.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An all-weather composite photocatalytic synergy system is prepared as follows:

[0038] (1) Put the suspension containing 3% sodium alginate, 3.5% sodium bicarbonate substrate, and 0.4 mg / ml of Candida parapsilosis cells in parallel microchannels at a flow rate of 120 cm / min in terms of mass concentration The reactor was prepared into a suspension of uniform size; the prepared suspension was dropped in CaCl 2 The reaction in the solution obtains the phenol-degrading bacterial agent embedded in sodium alginate; the CaCl 2 CaCl in solution 2 The mass concentration is 15%; the suspension and CaCl 2 The volume ratio of the solution is 1:600.

[0039] (2) Preparation of phenol-degrading bacteria agent embedded in sodium alginate loaded with silica nanospheres:

[0040] Nano-silica spheres (nano-silica spheres have a particle size of 30-50nm and a specific surface area of ​​1000-1500m 2 / g, the pore solvent is 0.05-1.8ml / g) for positive charge treatment, the nano-silica ...

Embodiment 2

[0045] A composite photocatalytic system is prepared as follows:

[0046] (1) Put the suspension containing 4% sodium alginate, 2.5% sodium bicarbonate substrate, and 0.3 mg / ml of Candida parapsilosis cells in parallel microchannels at a flow rate of 120 cm / min in terms of mass concentration The reactor was prepared into a suspension of uniform size; the prepared suspension was dropped in CaCl 2 The reaction in the solution obtains the phenol-degrading bacterial agent embedded in sodium alginate; the CaCl 2 CaCl in solution 2 The mass concentration is 10%; the suspension and CaCl 2 The volume ratio of the solution is 1:1000.

[0047] (2) Preparation of phenol-degrading bacteria agent embedded in sodium alginate loaded with silica nanospheres:

[0048] Nano-silica spheres (nano-silica spheres have a particle size of 30-50nm and a specific surface area of ​​1000-1500m 2 / g, the pore solvent is 0.05-1.8ml / g) for positive charge treatment, the nano-silica spheres are disperse...

Embodiment 3

[0053] A composite photocatalytic system is prepared as follows:

[0054] (1) Put the suspension containing 3.5% sodium alginate, 3% sodium bicarbonate substrate, and 0.35 mg / ml of Candida parapsilosis cells in parallel microchannels at a flow rate of 100 cm / min in terms of mass concentration The reactor was prepared into a suspension of uniform size; the prepared suspension was dropped in CaCl 2 The reaction in the solution obtains the phenol-degrading bacterial agent embedded in sodium alginate; the CaCl 2 CaCl in solution 2 The mass concentration of is 20%; The suspension and CaCl 2 The volume ratio of the solution is 1:100.

[0055] (2) Preparation of phenol-degrading bacteria agent embedded in sodium alginate loaded with silica nanospheres:

[0056] Nano-silica spheres (nano-silica spheres have a particle size of 30-50nm and a specific surface area of ​​1000-1500m 2 / g, the pore solvent is 0.05-1.8ml / g) for positive charge treatment, the nano-silica spheres are dispe...

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Abstract

The invention provides an all-weather composite photocatalysis synergy system. The all-weather composite photocatalysis synergy system is composed of titanium dioxide photocatalytic microspheres and sodium alginate embedded candida parapsilosis inocula. While treating phenol wastewater with deep depth and poor light transmittance, the system can effectively degrade phenol in wastewater and meet industrial demand, at the same time, an inventor found that in the research and development, the combination makes titanium dioxide not affect the biological activity of phenol degrading bacteria undernormal photocatalysis.

Description

technical field [0001] The invention relates to the field of sewage degradation, in particular to a microorganism / photocatalytic composite degradation system and a preparation method thereof. Background technique [0002] Due to its ability to efficiently degrade pollutants, photocatalytic technology has been applied in many fields, such as environmental pollution control, medical and health and other fields; among many photocatalysts, especially nano-TiO 2 The performance advantages shown in the field of catalytic degradation of organic pollutants in water and air have attracted widespread attention from researchers, and it is non-toxic, stable in chemical properties, and has no selectivity for pollutant degradation and high catalytic activity. Although most titanium dioxide can only absorb about 5% of the full-spectrum energy of sunlight and have low catalytic efficiency, due to its significant advantages, major research teams have carried out further research on it. For e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F101/34
CPCC02F1/30C02F3/34C02F2101/345C02F2305/10
Inventor 姚昱岑
Owner CHONGQING UNIV OF ARTS & SCI
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