Device and process for mass transfer process for treating wastewater through supergravity enhanced electric Fenton method

A technology for treating wastewater and mass transfer process, applied in the field of water treatment, can solve problems such as limited mass transfer, achieve the effects of reducing mass transfer resistance, eliminating concentration polarization, and improving treatment efficiency

Active Publication Date: 2014-06-25
ZHONGBEI UNIV
View PDF9 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of limited mass transfer when the traditional electro-Fenton method is used to treat wastewater, the present invention provides a device and process for enhancing the mass transfer process of electro-Fenton method to treat wastewater by supergravity

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
  • Device and process for mass transfer process for treating wastewater through supergravity enhanced electric Fenton method
  • Device and process for mass transfer process for treating wastewater through supergravity enhanced electric Fenton method
  • Device and process for mass transfer process for treating wastewater through supergravity enhanced electric Fenton method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0053] Example 1: Treatment of nitrobenzene wastewater by the Fenton method of high-gravity electricity.

[0054] The outer casing of the hypergravity electric Fenton reaction device is made of stainless steel and is lined with an insulating layer. The inner diameter is 300mm and the height is 200mm. The anode material of the concentric corrugated cylinder is iron, the cathode material of the concentric cylinder is graphite, the distance between the cathode and anode electrodes is 5mm, the number of cathode or anode electrodes is 6, and the electrode height is 100mm. The distance between the connection pads is equal to 10mm.

[0055] The initial COD content in nitrobenzene wastewater was 2740mg / L. Dosing H into the wastewater storage tank before treatment 2 SO 4 The solution adjusts the initial pH of the wastewater to 3. Turn on the DC stabilized power supply, and the waste water enters the supergravity electric Fenton reaction device through the waste water inlet pipe....

example 2

[0056] Example 2: Treatment of waste water containing organophosphorus pesticides by the Fenton method of high-gravity electricity.

[0057] The outer casing of the hypergravity electric Fenton reaction device is made of stainless steel and is lined with an insulating layer. The inner diameter is 400mm and the height is 240mm. The anode material of the concentric corrugated cylinder is iron, the cathode material of the concentric cylinder is stainless steel covered with activated carbon fiber material, the distance between the cathode and anode electrodes is 5mm, the number of cathode or anode electrodes is 6, and the electrode height is 120mm. The distance between the cylindrical anode and the cathode connection plate is equal to 10mm.

[0058] The initial COD content in the wastewater of organophosphorus pesticides was 4500mg / L. Dosing H into the wastewater storage tank before treatment 2 SO 4 The solution adjusts the initial pH of the wastewater to 3.5. Turn on the D...

example 3

[0059] Example 3: Treatment of petrochemical wastewater containing phenol by the Fenton method of high-gravity electricity.

[0060] The outer casing of the hypergravity electric Fenton reaction device is made of stainless steel and is lined with an insulating layer. The inner diameter is 200mm and the height is 140mm. The anode material of the concentric corrugated cylinder is iron, the cathode material of the concentric cylinder is graphite, the distance between the cathode and anode electrodes is 5mm, the number of cathode or anode electrodes is 4, and the electrode height is 80mm. The distance between the lands is equal to 8mm.

[0061] The initial COD content in petrochemical phenolic wastewater was 640mg / L. Dosing H into the wastewater storage tank before treatment 2 SO 4 The solution adjusts the initial pH of the wastewater to about 2.5. Turn on the DC stabilized power supply, and the waste water enters the supergravity electric Fenton reaction device through the...

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

PropertyMeasurementUnit
electric potential / voltageaaaaaaaaaa
porosityaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of water treatment, and in particular relates to a device and a process for a mass transfer process for treating wastewater through a supergravity enhanced electric Fenton method, aiming at solving the problem of limited mass transfer while treating wastewater through the conventional electric Fenton method. The device comprises a plurality of cylinder cathodes and cathode connecting discs as well as a plurality of corrugated cylinder anodes and anode connecting discs, wherein the corrugated cylinder anodes and the anode connecting discs are static relatively to a shell; the centers of the cathode connecting discs are connected with rotating shafts; intake holes are distributed on the cathode connecting discs; and gas circulating chambers are arranged at the bottoms of the cathode connecting discs. According to the process, a supergravity electric Fenton reaction system is formed through the rotating cathode connecting discs and cylinder cathodes as well as the static anode connecting discs and cylinder anodes, and inflated oxygen. The device and the process disclosed by the invention not only solve the problem of limited mass transfer in the conventional sacrificial anode electric Fenton technology application process, so as to improve treatment efficiency, but also the device is low in liquid holdup, low in load, small in equipment and low in energy consumption.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a device and a process for supergravity-enhanced electro-Fenton method for treating waste water mass transfer process. Background technique [0002] The research on the electro-Fenton method began in the 1980s. So far, many scholars at home and abroad have used the electro-Fenton method to treat various wastewater, and achieved certain results. The electro-Fenton method generates Fe by means of an applied current. 2+ and H 2 o 2 , so as a continuous source of Fenton's reagent, a series of chemical reactions occur, so that harmful impurities in wastewater can be transformed and removed. where H 2 o 2 in Fe 2+ Hydroxyl radical·OH with strong oxidation ability will be generated under the catalytic action of the catalyst, and its oxidation potential is as high as 2.80V. OH also has high electronegativity and electrophilicity, its electron affinity reache...

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): C02F9/06
Inventor 高璟刘有智焦纬洲祁贵生袁志国栗秀萍申红艳张巧玲王建伟刘引娣
Owner ZHONGBEI UNIV
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap