Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A photoelectric Fenton device and method for remediating phthalate-contaminated soil and groundwater

A technology of phthalic acid and contaminated soil, applied in the restoration of contaminated soil, contaminated groundwater/leachate treatment, chemical instruments and methods, etc., can solve the problems of soil and groundwater pollution, and achieve a wide range of applications, The effect of reducing operating costs and improving the speed of restoration

Active Publication Date: 2014-10-08
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the above-mentioned pollution problems of soil and groundwater, the present invention proposes a device and method for remediating phthalate-contaminated soil and groundwater by photoelectric Fenton with concentric oval electrodes.

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
  • A photoelectric Fenton device and method for remediating phthalate-contaminated soil and groundwater
  • A photoelectric Fenton device and method for remediating phthalate-contaminated soil and groundwater
  • A photoelectric Fenton device and method for remediating phthalate-contaminated soil and groundwater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] A kind of photoelectric Fenton repairs the device of phthalates polluted soil and groundwater, as figure 1 As shown: the DC power supply 6 is connected to the positive electrode 1 and the negative electrode 11 through wires; an ultraviolet light source 13 is installed between two adjacent negative and positive electrodes; the hydrogen peroxide storage tank 7 is controlled by the timing device 18 through the second multi-channel peristaltic pump 17 And the electrolyte solution storage tank 8, the hydrogen peroxide storage tank 7 injects hydrogen peroxide near the anode electrode 1 through the hydrogen peroxide injection pipe 14; the electrolyte solution storage tank 8 injects the electrolyte solution near the cathode electrode through the electrolyte solution injection pipe 16; the automatic control device 2 passes the pH probe The monitoring result of 12 controls the first multi-channel peristaltic pump 5, and the first multi-channel peristaltic pump 5 is connected to th...

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 discloses a device and a method for repairing phthalate-polluted soil and underground water through a photoelectric Fenton principle, belonging to the field of the repair of soil and underground water. The method comprises the steps of arranging electrodes like an oval in the area at which the soil polluted by phthalate and arranging a central electrode at the position at which the concentration of the pollutant is the highest, wherein both the central electrodes and the outermost electrode are cathode electrodes, and the oval covers the whole polluted area. According to the device and the method, a traditional photoelectric Fenton method is improved; electrolyte solution and hydrogen peroxide are directly injected into the soil, and then a photoelectric Fenton system is directly established in the soil via Fe2+ / Fe3+ produced on an anode and hydrogen peroxide produced at a cathode together with the poured electrolyte solution and the poured hydrogen peroxide; the surface of the soil is irradiated by using ultraviolet rays, so that the phthalate on the surface of the soil is thoroughly decomposed. The photoelectric Fenton system is efficiently and rapidly established through the method, the pollutant such as the phthalate is thoroughly decomposed, and the highest reaction efficiency can reach 99%.

Description

technical field [0001] The invention belongs to the field of soil and groundwater remediation, in particular to a photoelectric Fenton (Fenton) device and method for remediating phthalate-contaminated soil and groundwater. Background technique [0002] With the rapid development of the plastics industry and the widespread application of plastic products, phthalates enter the environment with the discharge of various types of sewage, resulting in widespread contamination of sediment, soil, water, air, organisms and atmospheric dust. known as ubiquitous pollutants. According to reports, the presence of phthalates has been detected in both the human environment and the natural environment, such as the detection of phthalates in the leachate and domestic waste of cities and small towns. The presence of this organic substance has been detected in , water bodies, organisms and even human bodies. [0003] Phthalic acid esters (Phthalic Acid Esters, referred to as PAEs, alias phth...

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 Patents(China)
IPC IPC(8): B09C1/00C02F9/08C02F103/06C02F101/34
Inventor 何理张嘉琪李振通樊星卢宏玮
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products