Check patentability & draft patents in minutes with Patsnap Eureka AI!

Microbial electrochemical systems and methods for controlling production and elimination of hydrogen peroxide

A technology of microbial electrochemistry and hydrogen peroxide, applied in chemical instruments and methods, electrochemical biological combination treatment, biological water/sewage treatment, etc., can solve problems such as poor methylene blue effect, achieve obvious effects, save costs, reduce The effect of consumption

Inactive Publication Date: 2020-09-22
BEIJING UNIV OF CHEM TECH
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] 3) The Fenton reaction in the cathode chamber is not effective in treating methylene blue

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
  • Microbial electrochemical systems and methods for controlling production and elimination of hydrogen peroxide
  • Microbial electrochemical systems and methods for controlling production and elimination of hydrogen peroxide
  • Microbial electrochemical systems and methods for controlling production and elimination of hydrogen peroxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] The schematic diagram of the microbial electrochemical system is shown in image 3 As shown, the H-type dual-chamber BES, the anode chamber 6 and the cathode chamber 7 are composed of a chamber separated by a bipolar membrane 5 (diameter 16mm); the role of the bipolar membrane 5 is to maintain a lower cathode pH and avoid h + Leakage to the anode; the working volume of the anode chamber 6 is 60mL, and the working volume of the cathode chamber 7 is 260mL; the anode 61 in the anode chamber 6 is made of carbon fiber brush (6.0cm diameter, 7.0cm length), pre-heated at 450°C Treated for 30 minutes, then pre-incubated with mature biofilm in the MFC reactor, and then transferred to the BES reactor; two different cathode electrodes were submerged in the cathode chamber 7 of the BES reactor; one was nanocarbon modified The Pt carbon cathode 72 (the projected surface area is 60cm 2 ), the other is a carbon cloth electrode 71 of the same size; the distance between the anode and t...

Embodiment 2

[0089] Adopt the device test of embodiment 1; System performance under different catholyte pH

[0090] Concentration in MB 60mgL -1 , initial Fe 2+ At a concentration of 2.5 mmol / L and an external resistance of 4 Ω, the effect of catholyte pH on MB degradation and residual H 2 o 2 Effect of removal; in MEC mode, the MB degradation efficiency is greatly affected by the pH value in the cathode chamber; the KTOC, decolorization efficiency and TOC removal efficiency increase with the increase of pH value, reaching the maximum at pH = 3.0, respectively value, the optimum pH value of 3.0 observed in this study is consistent with the conventional Fenton method; in addition to the Fenton method, the pH value of the electrolyte in the cathode compartment may affect the H 2 o 2 The electrochemical process; the acidic cathodic chamber electrolyte on the H in BES 2 o 2 generation is beneficial; the pH of the electrolyte in the cathodic chamber not only determines the H 2 o 2 resid...

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
Conductivityaaaaaaaaaa
Login to View More

Abstract

The present invention discloses a microbial electrochemical system for controlling the generation and elimination of hydrogen peroxide, the system comprising: an aqueous cathode chamber comprising a microbial electrolysis cell cathode and a microbial fuel cell cathode inserted into the cathode chamber; an aqueous anode chamber comprising an anode inserted into the anode chamber, wherein the cathode chamber and the anode chamber are separated by a bipolar membrane; the cathode of the microbial electrolysis cell is connected to a first circuit through a first resistor, and the cathode of the microbial fuel cell is connected to a second circuit through a second resistor; the first circuit comprises a microbial electrolysis cell, and the second circuit comprises a microbial fuel cell; the cathode of the microbial electrolysis cell is made of a carbon cloth material, and the cathode of the microbial fuel cell is made of a Pt material subjected to nano carbon surface modification; and the anode in the anode chamber comprises a carbon fiber brush and a microbial film coating same. The system can effectively control the generation and elimination of hydrogen peroxide.

Description

technical field [0001] The invention belongs to the field of environmental protection, in particular to a microbial electrochemical system and method for controlling the generation and elimination of hydrogen peroxide. Background technique [0002] Advanced oxidation technology, also known as (deep oxidation technology), is characterized by the generation of hydroxyl radicals (OH) with strong oxidizing ability. Refractory organic substances are oxidized into low-toxic or non-toxic small molecular substances. [0003] Advanced oxidation relies on the in situ generation of highly active hydroxyl radicals (OH), which are very strong oxidants in water that can be treated, which can oxidize any compound present in the water matrix, and the diffusion reaction speed is very fast; Therefore, once the (·OH) hydroxyl radicals react non-selectively, the pollutants will be quickly and effectively decomposed and transformed into small inorganic molecules; Hydrogen oxide, oxygen), an en...

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): C02F3/00C02F3/34
CPCC02F3/005C02F3/34C02F2305/023C02F2305/026
Inventor 王雯毛开伟刘广青张义峰石耀威苏本生瑞纳·安吉达柯
Owner BEIJING UNIV OF CHEM TECH
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