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

Low-energy consumption microbial-electrochemical wastewater treatment system

A sewage treatment system and microbial technology, applied in the field of water treatment, can solve the problems of high energy consumption, low treatment efficiency of refractory organic pollutants, high technical cost, etc., achieve low energy consumption, good application prospects, and improve treatment efficiency.

Active Publication Date: 2018-12-07
NANJING UNIV
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of high energy consumption of microorganisms and electrochemical sewage treatment systems in the prior art, low treatment efficiency of refractory organic pollutants, and high technical cost, and further provide a low energy consumption microbial-electrochemical sewage processing system

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
  • Low-energy consumption microbial-electrochemical wastewater treatment system
  • Low-energy consumption microbial-electrochemical wastewater treatment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1The shown low-energy microbial-electrochemical sewage treatment system includes anoxic unit 1, aerobic unit 2, first packing 31, second packing 32, first screen 41, second screen 42, MEC Circuit, MFC circuit, separator 7, fixed value resistor 12, wire 13, mixed liquid return pump 14, aerator 15, solar panel 16, AC power supply 17, mixer 18; the first filler 31 is filled in the anoxic unit 1 Inside, the second packing 32 is filled in the aerobic unit 2, the first screen 41 is set at the first packing 31 close to the water surface, and the second screen 42 is set at the second packing 32 close to the water surface; the MEC circuit includes the MEC anode 5 and MEC cathode 6, MEC circuit embedded in anoxic unit 1, MFC circuit includes MFC circuit 1 and MFC circuit 2, MFC circuit 1 includes MFC1 cathode 8 and MFC1 anode 9, MFC2 includes cathode 10 and MFC2 anode 11, MFC circuit is embedded in aerobic Unit 2, the anoxic unit 1 and the aerobic unit 2 are separ...

Embodiment 2

[0042] Such as figure 2 The shown low-energy microbial-electrochemical sewage treatment system includes anoxic unit 1, aerobic unit 2, first packing 31, second packing 32, first screen 41, second screen 42, MEC Circuit, MFC circuit, separator 7, fixed value resistor 12, wire 13, mixed liquid return pump 14, aerator 15, solar panel 16, AC power supply 17, mixer 18; the first filler 31 is filled in the anoxic unit 1 Inside, the second packing 32 is filled in the aerobic unit 2, the first screen 41 is set at the first packing 31 close to the water surface, and the second screen 42 is set at the second packing 32 close to the water surface; the MEC circuit includes the MEC anode 5 and MEC cathode 6, MEC circuit embedded in anoxic unit 1, MFC circuit includes MFC circuit 1 and MFC circuit 2, MFC circuit 1 includes MFC1 cathode 8 and MFC1 anode 9, MFC2 includes cathode 10 and MFC2 anode 11, MFC circuit is embedded in aerobic Unit 2, the anoxic unit 1 and the aerobic unit 2 are sep...

Embodiment 3

[0057] Such as figure 2 The shown low-energy microbial-electrochemical sewage treatment system includes anoxic unit 1, aerobic unit 2, first packing 31, second packing 32, first screen 41, second screen 42, MEC Circuit, MFC circuit, separator 7, fixed value resistor 12, wire 13, mixed liquid return pump 14, aerator 15, solar panel 16, AC power supply 17, mixer 18; the first filler 31 is filled in the anoxic unit 1 Inside, the second packing 32 is filled in the aerobic unit 2, the first screen 41 is set at the first packing 31 close to the water surface, and the second screen 42 is set at the second packing 32 close to the water surface; the MEC circuit includes the MEC anode 5 and MEC cathode 6, MEC circuit embedded in anoxic unit 1, MFC circuit includes MFC circuit 1 and MFC circuit 2, MFC circuit 1 includes MFC1 cathode 8 and MFC1 anode 9, MFC2 includes cathode 10 and MFC2 anode 11, MFC circuit is embedded in aerobic Unit 2, the anoxic unit 1 and the aerobic unit 2 are sep...

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
diameteraaaaaaaaaa
electrical resistanceaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a low-energy consumption microbial-electrochemical wastewater treatment system, which mainly includes an anoxic unit and an aerobic unit. The system also includes packing, a screen, an MEC circuit, two MFC circuits, a constant value resistor, a separation board, a mixed liquid backflow pump, an aerator, a solar cell panel, an alternating current power supply, and a stirringmachine. An operation method of the system includes: 1) feeding secondary biochemical wastewater from the bottom of the anoxic unit to blend the wastewater with a supernatant coming from the aerobicunit and containing nitrate nitrogen, and performing nitrogen removal by denitrification to degrade a part of organic pollutants under cooperative effects of facultative anaerobic microorganisms and the MFC circuit; 2) overflowing the wastewater from the anoxic unit into the aerobic unit via the separation board, and performing nitration and BOD removal under the cooperative effects of aerobic microorganisms and the MFC circuit, wherein the supernatant flows back to the anoxic unit through the mixed liquid backflow pump; 3) driving a MEC electrode to work with the two MFC circuits as power supply of the MEC circuit, thereby improving wastewater treatment capacity of the anoxic unit and achieving the object of wastewater treatment at low energy consumption.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a microbe-electrochemical sewage treatment system with low energy consumption. Background technique [0002] After secondary biochemical treatment of wastewater, the easily biodegradable organic pollutants have been exhausted, resulting in a serious imbalance of C / N in the effluent. Although the biodegradability of wastewater can be improved by adding easily degradable carbon sources, it will definitely increase the cost of wastewater treatment , and the dosage is not easy to control, and it is easy to cause secondary pollution. Traditional sewage biological treatment technology usually needs to supplement carbon source, the operation is more complicated, the biological start is slow, and it is easily affected by temperature. The bioelectrochemical system (BES) uses microorganisms as catalysts to perform catalytic oxidation at the anode or catalytic reduction at the catho...

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): C02F3/30C02F3/00C02F3/34
CPCC02F3/005C02F3/302C02F3/34
Inventor 黄辉高依林任洪强张徐祥
Owner NANJING UNIV
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