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

Method for removing iron and manganese from rural underground drinking water

A drinking water and rural technology, applied in the direction of contaminated groundwater/leachate treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the problems that are difficult to put into practical application, immature active filter membrane, and inconvenient operation and management and other issues to achieve the effect of easy implementation, low cost, and improved processing efficiency

Inactive Publication Date: 2014-10-22
AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
View PDF7 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now many places have established iron and manganese removal water plants, but the effect is not ideal
On the one hand, although the traditional filter aeration method is effective, it is inconvenient to operate and manage; and the contact aeration method is not yet mature in the research of active filter membranes.
On the other hand, the biological filter bed method is still in the stage of laboratory development, and there is still a big gap from engineering operation; while the membrane technology that has entered engineering operation in other fields has not yet studied how to deal with membrane pollution and management and maintenance. Before the problem, it is still difficult to put into practical application

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 removing iron and manganese from rural underground drinking water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] A method for removing iron and manganese from underground drinking water in rural areas, the steps are as follows:

[0020] 1) Use jet aeration system to remove part of ferrous iron in underground drinking water:

[0021] The extracted underground drinking water enters the jet aeration system. The jet aeration system is equipped with a jet aerator and makes the underground drinking water fully contact with oxygen, oxidizes ferrous iron to ferric iron and then forms ferric hydroxide precipitate, which can be filtered and removed;

[0022] 2) Use biofilter system to remove remaining ferrous iron and manganese in underground drinking water:

[0023] The underground drinking water through the jet aeration system enters the biofilter system. The jet aeration system is composed of single-row series or double-row series biofilters. The biofilter is filled with biological fillers. Quartz sand and gravel of 7-10mm, the middle part is manganese sand with a particle size of 5-7mm...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for removing iron and manganese from rural underground drinking water, which comprises the following steps: 1) removing part of divalent iron in underground drinking water by a jet aeration system; 2) removing residual divalent iron and divalent manganese in the underground drinking water by a biological filter system; and 3) disinfecting the water with ozone, ultraviolet light or chlorine gas to achieve the hygienic index, lifting to a centralized water supply tower, and supplying water to the rural people. By adopting the jet aeration / biological filter two-stage iron and manganese removal mode, the method has the advantages of simple technique and low cost, and is easy to implement. The biological filter adopts the multistage filter materials to mutually complement the advantages, so that the biological filter can not be easily blocked, thereby enhancing the treatment efficiency.

Description

technical field [0001] The invention belongs to the technical field of drinking water treatment in environmental engineering, and in particular relates to a method for removing iron and manganese from underground drinking water in rural areas, which is suitable for rural areas where the concentration of iron and manganese in underground drinking water is high and cannot be reached by urban water supply. Background technique [0002] Water is an essential resource for people's daily life, and the quality of drinking water is directly related to people's health. my country is rich in groundwater resources, and as a drinking water resource, groundwater has the advantages of relatively stable water quality and simple treatment process, but most areas, especially the Northeast, contain excessive iron and manganese in underground drinking water, which seriously affects the safety of local drinking water. A large part of them are rural areas with relatively backward economic and kn...

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): C02F9/14C02F103/06
Inventor 翟中葳
Owner AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
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