Supercharge Your Innovation With Domain-Expert AI Agents!

Efficient low-consumption catalytic oxidation water treatment method

A catalytic oxidation and water treatment technology, applied in the direction of oxidized water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc., can solve problems such as difficulty in light source intensity, reaction efficiency and energy consumption limitations, and achieve the goal of improving treatment conditions Effect

Inactive Publication Date: 2022-01-14
江苏智诚达环保科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the actual photocatalytic water treatment process, it is difficult to adjust the intensity of the light source in the reaction in a timely and effective manner, and it is impossible to add catalysts or materials in the reaction process online, which greatly limits the reaction efficiency and energy consumption.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Efficient low-consumption catalytic oxidation water treatment method
  • Efficient low-consumption catalytic oxidation water treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] P-BiO 1-x Br preparation: using industrially produced BiOBr as a raw material, sodium hypophosphite is selected as a phosphorus source, a porcelain boat containing 2g of phosphorus source is placed in the upwind direction of the tube furnace, and the porcelain boat with BiOBr (1g) is placed Downwind, N 2 As a carrier gas, the heating rate is 2°C / min, the reaction temperature is 450°C, and the reaction time is 2h. Cool down to room temperature naturally after the reaction, take out the P-BiO that is located in the downwind direction 1-x Porcelain boat of Br, dispersed by deionization, ultrasonication for 10min, suction filtration, repeated washing with deionized water for 3 times, drying at 60°C to obtain P-BiO 1-x Br catalyst.

Embodiment 2

[0039] The construction of the reaction apparatus: as figure 1 and figure 2 As shown, it includes water inlet quantitative pump 1, cylindrical light reaction box 2, light source system with adjustable slit 3, stirring and feeding hole column 4, water inlet 5, water inlet pipe 6, self-sealing plug 7, ultraviolet Lamp 8, lampshade 9, stirring impeller 10, feeding port 11, power supply 12, water outlet 13; the water inlet quantitative pump can control the water intake of the reaction tank on-line, when the waste water flows from the water inlet through the quantitative pump, it passes through the water inlet pipe freely The plugging head enters the reaction box, and the ultraviolet lamp inside the box can adjust the light intensity according to the rotatable lampshade on the outer layer during the water treatment reaction. The water stirring inside the reaction box adopts a stirring and feeding hole in the middle of the box. When the power is turned on and the reaction starts, ...

Embodiment 3

[0047] With the P-BiO prepared in Example 1 1-x Br photocatalyst is used for the degradation test of 50mg / L norfloxacin simulated waste water, and catalyst concentration is 0.2g / L, and reaction time is 1h, and reaction temperature is room temperature, and catalyst is added in the reactor constructed in embodiment 2, adds Simulated wastewater, after the reaction, the removal rate of norfloxacin was 100%, the removal rate of TOC was 60%, and the defluorination rate was 60%. Moreover, the catalyst has been subjected to repeated degradation tests for 24 hours, and its catalytic performance is stable without significant attenuation.

[0048] The degradation test was carried out with the waste water containing a large amount of drugs and their intermediates discharged from the pharmaceutical factory as the target pollutant. The removal rate of TOC was 50-60%, and after 24 hours of continuous reaction, the performance of the catalyst had no obvious attenuation.

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention develops an efficient low-consumption catalytic oxidation water treatment method, and belongs to the technical field of environmental pollution control engineering. According to the method, P-doped BiOBr with oxygen vacancies is prepared through a phosphating calcination method, P with low electronegativity is doped in the structure of the P-doped BiOBr, p orbital electron arrangement of Bi is regulated and controlled, and the catalytic activity and catalytic stability are improved. Meanwhile, oxygen vacancies can be synchronously formed in the BiOBr structure in the phosphorization process. Through the synergistic effect of the two, the energy band structure of BiOBr can be effectively regulated and controlled, the spectral absorption range of BiOBr is expanded, and the activity of reaction sites is improved, so that the photocatalytic reaction efficiency is remarkably improved. In addition, according to the characteristics of the catalyst, an advanced oxidation reaction device with a specific structure is constructed, the water treatment energy consumption is further saved, and the removal rate of pollutants in the water environment is improved. The method has the characteristics of simplicity and convenience in operation, low cost, low requirements on equipment and the like, and is suitable for large-scale industrial production and practical application.

Description

technical field [0001] The patent of the invention relates to the field of advanced oxidation water treatment, in particular to the preparation of a phosphorus-doped bismuth oxybromide catalyst with oxygen vacancies, which is used for on-line regulation of advanced oxidation water treatment devices to treat refractory wastewater. Background technique [0002] With the increasing scarcity of water resources and serious pollution of the water environment, people are imminent in the innovation and research and development of water treatment technology. However, traditional water treatment technology cannot be widely used due to shortcomings such as high energy consumption and low efficiency. Therefore, green and environmentally friendly water Treatment technologies are gradually proposed, and photocatalytic and electrocatalytic technologies are widely studied as new green water treatment technologies. Existing photocatalytic materials are difficult to produce on a large scale. ...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F1/32B01J19/18B01J27/186B01J37/08B01J37/28C02F101/30
CPCC02F1/725C02F1/32B01J19/18B01J27/186B01J37/08B01J37/28C02F2101/30
Inventor 牛连勇
Owner 江苏智诚达环保科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com