Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Advanced oxidation treatment method and equipment for phosphorus-containing flame retardant wastewater

An advanced oxidation and treatment method technology, applied in the field of water treatment, can solve the problems of uneconomical operation, high current density, high treatment cost, etc., and achieve the effects of low waste water treatment cost, energy saving and treatment cost reduction

Pending Publication Date: 2022-04-15
北京博纳晶科科技有限公司
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current density of the diamond membrane electrode in the sewage treatment process is very high, generally stable at 2000 amps / square meter, and the power consumption is large, resulting in high treatment costs, especially in the range of low COD values, COD<5000mg / L, the current utilization rate is less than 20%, unable to operate economically

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
  • Advanced oxidation treatment method and equipment for phosphorus-containing flame retardant wastewater
  • Advanced oxidation treatment method and equipment for phosphorus-containing flame retardant wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 Shown, a kind of advanced oxidation treatment method of phosphorus flame retardant waste water, comprises the following steps:

[0043] S1. First-level phosphorus-containing wastewater treatment: phosphorus-containing flame retardant wastewater enters the first advanced oxidation treatment unit 13 for oxidation treatment in the first advanced oxidation phosphorus removal treatment system 1 through internal circulation, and some organic phosphorus or organic Phosphate ester contacts with the hydroxyl radicals generated on the surface of the boron-doped diamond membrane electrode in the first advanced oxidation treatment unit 13, and loses electrons and thus loses its stable structure. During the continuous contact reaction of hydroxyl radicals, it is gradually oxidized into inorganic phosphorus, and a Level treatment of phosphorus-containing wastewater;

[0044] The current density in the first advanced oxidation treatment unit 13 is 1000-2000 amps / squa...

Embodiment 2

[0052] Such as figure 1 Shown, a kind of advanced oxidation treatment method of phosphorus flame retardant waste water, comprises the following steps:

[0053] The boron-doped diamond film operates in the first advanced oxidation treatment unit 13, and the waste water enters the first advanced oxidation treatment unit 13 in an internal circulation manner in the first circulation batch tank 11. Organic phosphorus or organic phosphate and boron-doped diamond film The hydroxyl radicals generated on the electrode surface are fully contacted, their electrons are taken away, and their stable structure is lost. During the continuous contact reaction of hydroxyl radicals, they are gradually oxidized into inorganic phosphorus.

[0054] The first advanced oxidation treatment unit 13 of the boron-doped diamond film is fully automatic, and is driven by the No. 1 pump 12 to realize circulation treatment;

[0055] The boron-doped diamond film first advanced oxidation treatment unit 13 will...

Embodiment 3

[0065] Such as figure 2 As shown, an advanced oxidation treatment equipment for phosphorus-containing flame retardant wastewater includes a connected first advanced oxidation phosphorus removal treatment system 1, a second advanced oxidation phosphorus removal treatment system 2, and the first advanced oxidation phosphorus removal treatment system 1 , The solar power supply system 3 and the tail gas purification system 4 connected to the second advanced oxidation phosphorus removal treatment system 2;

[0066] The first advanced oxidation phosphorus removal treatment system 1 is used for primary advanced oxidation treatment of phosphorus-containing wastewater, and the second advanced oxidation phosphorus removal treatment system 2 is used for secondary advanced oxidation treatment of the effluent of the first advanced oxidation phosphorus removal treatment system 1 deal with;

[0067] The first advanced oxidation dephosphorization treatment system 1 includes a first circulat...

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 provides an advanced oxidation treatment method and device for phosphorus-containing flame retardant wastewater, the advanced oxidation treatment method comprises a first-stage phosphorus-containing wastewater treatment and a second-stage phosphorus-containing wastewater treatment, each stage comprises a first circulating batch treatment tank, a first pump, a first advanced oxidation treatment unit and a first heat exchanger which are connected in sequence; and a shared solar power supply system and a tail gas purification system are arranged. Solar energy is used for supplying power to the advanced oxidation process, a first batch of sewage is conveyed to the first advanced oxidation dephosphorization treatment system from the first advanced oxidation dephosphorization treatment system through a pump, and proper current density is set respectively; sewage of the first advanced oxidation dephosphorization treatment system is added into the first advanced oxidation dephosphorization treatment system, so that the concentration of organophosphorus is recovered, the utilization rate of current is improved, the treatment cost is reduced, and the boron-doped diamond film treatment process of the organophosphorus-containing wastewater becomes possible.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an advanced oxidation treatment method and equipment for phosphorus-containing flame retardant wastewater. Background technique [0002] Phosphate flame retardants are an important branch in the field of flame retardants. They have long-lasting flame retardant effects, good compatibility with polymer substrates, water resistance, weather resistance, heat resistance and migration resistance, and have become the most important at present. , One of the most widely used types of flame retardants. In addition, most phosphate ester flame retardants have the characteristics of low smoke, non-toxic, low halogen (or halogen-free), which are in line with the development direction of flame retardants, so they have good development prospects. [0003] During the production of phosphate ester flame retardants, a large amount of refractory organic wastewater is usually produced. The ...

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
IPC IPC(8): C02F1/72C02F1/46C02F1/467C02F9/14C02F101/30
Inventor 卢嘉
Owner 北京博纳晶科科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com