Method for carrying out in-situ remediation on underground water nitrate pollution by adopting iron fuel cell

A fuel cell and in-situ repair technology, applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., to achieve the effects of simple operation and maintenance, fast start-up, and convenient operation

Inactive Publication Date: 2012-10-24
HEFEI UNIV OF TECH
View PDF2 Cites 9 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 deficiencies of the existing groundwater nitrate pollution restoration technology, and provide a method that does not require the participation of microorganisms, does not

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
  • Method for carrying out in-situ remediation on underground water nitrate pollution by adopting iron fuel cell
  • Method for carrying out in-situ remediation on underground water nitrate pollution by adopting iron fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] see figure 1 In this embodiment, the anode chamber 2 is a cylindrical or square container placed on the ground surface, made of non-conductive material, or a pool constructed on the ground, semi-ground or underground using reinforced concrete; the anode 1 is suspended by a series of steel wool balls In the anode chamber, the anode chamber 2 is filled with a pH buffer, and the pH buffer is a disodium hydrogen phosphate solution or a sodium carbonate solution with a mass concentration of 1%. The cathode chamber 4 can be a container made of airtight non-conductive material, and also can directly utilize the underground aquifer, that is, directly place the cathode 3 in the groundwater by punching holes, and the cathode 3 can adopt stainless steel wire mesh, silk balls, thin plates, Or other corrosion-resistant, conductive materials, such as graphite plates, graphite rods, carbon cloth, etc., the cathode 3 is immersed in the solution containing nitrate in the cathode chamber...

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 method for carrying out in-situ remediation on underground water nitrate pollution by adopting an iron fuel cell. The method is characterized in that a double-chamber iron fuel cell is constructed, wherein an anode is arranged in an anode chamber filled with a pH buffer solution, an underground water-containing layer polluted by nitrate in an anaerobic environment is used as a cathode chamber, and a cathode is arranged in the cathode chamber; the anode and the cathode are connected by a lead, and a connecting resistor is connected in the lead in series; and both ends of a salt bridge are respectively soaked in the solutions of the anode chamber and the cathode chamber. The method has the advantages of simple structure, no organic carbon source, microbial strain or any other chemical substance needs to be added into the underground water, operation and maintenance are convenient, the method is quick to start, the nitrate degradation speed is high, the pollution remediation period of the underground water is short, the construction investment and the running cost are low, and no secondary pollution is generated.

Description

technical field [0001] The invention relates to a method for in-situ restoration of nitrate pollution in groundwater, in particular to a method for removing nitrate nitrogen in groundwater by using electron reduction provided by an iron fuel cell without the participation of organisms. Background technique [0002] Groundwater is not only an important part of the hydrological cycle, but also an important freshwater resource for human beings, and even the only source of drinking water for many people. 68% of the fresh water available to people in the world is groundwater, and about 50% of the population uses groundwater. For drinking water source. However, due to the discharge and leakage of domestic sewage and industrial wastewater, excessive use of agricultural chemical fertilizers and pesticides, and the soil has high mineral solubility and low water holding capacity, nitrate can easily seep into groundwater with rain or farmland irrigation Cause irreversible nitrate poll...

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): C02F1/461
Inventor 崔康平崔宇晴
Owner HEFEI UNIV OF TECH
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