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

Method and device for treating fluorine-containing water

A treatment method and technology of a treatment device, applied in the direction of water/sewage treatment, water treatment parameter control, adsorption water/sewage treatment, etc., can solve the problems of device complexity, large-added chemical cost or management, reduction, etc., to achieve realization The effect of operating costs

Inactive Publication Date: 2008-09-10
SANYO ELECTRIC CO LTD
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It is well known that the above-mentioned treatment method is suitable as a treatment method for removing fluorine-containing compounds and the like from wastewater and reducing the concentration of fluorine in wastewater. Before the adsorption treatment by the adsorbent, pH adjustment is also performed, so a lot of running costs such as added chemical costs and management are required, and the equipment itself for performing related treatments is also complicated.

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 and device for treating fluorine-containing water
  • Method and device for treating fluorine-containing water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention aims to solve the problems of increased operating costs and complicated equipment due to the addition of a pH adjuster such as slaked lime for pH adjustment in the treatment of fluorine-containing water.

[0029] The purpose of treating the fluorine concentration of the water to be treated below the discharge standard without adding a pH adjuster can be achieved by performing a process including adding fluorine, which reacts with fluorine to form fluoride, to the water to be treated containing fluorine. The compound without the OH group of the reactant, thereby generating the first treatment step of the suspension; the second treatment step of solid-liquid separation of the suspension obtained by the first treatment step; making the suspension obtained by the second treatment The third treatment step is to contact the separated permeate with the fluoride ion adsorbent. Hereinafter, embodiments of the present invention will be described with referen...

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

There is disclosed a device for treating fluorine-containing water in which for-treatment water can be treated so as to set a fluorine concentration to a drainage standard or less without adding a reagent such as a pH adjuster to change a pH of the for-treatment water if possible. A treatment device includes a first treatment means for adding, to fluorine-containing for-treatment water, a reactive compound which reacts with fluorine to form a fluoride and which does not apply an OH group, so that a suspension is formed; a second treatment means for separating the suspension obtained by the first treatment means into a solid and a liquid; and a third treatment means for bringing a permeation liquid separated by the second treatment means into contact with a fluoride ion adsorbent.

Description

technical field [0001] The invention relates to a treatment method and device for fluorine-containing water, in particular to a treatment method and a device for performing adsorption treatment on the separated liquid with a fluoride ion adsorbent after coagulation and solid-liquid separation of the fluorine-containing water. Background technique [0002] It is well known that effluent with high fluorine concentration discharged from factories etc. has a bad influence on ecology, so the standard value of fluorine concentration that can be discharged into rivers etc. is determined by the Water Pollution Prevention Law and ordinances of local governments. Specifically, there is an obligation to treat the fluorine concentration in wastewater to below 8 mg / L before discharging it into rivers or the like. Therefore, conventionally, various methods for removing fluorine from such fluorine-containing water, and devices for performing the treatment have been developed. [0003] As ...

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): C02F1/58C02F9/04C02F1/28C02F101/14
CPCC02F1/66C02F11/121C02F1/281C02F9/00C02F2209/06C02F2101/14C02F1/444C02F1/008C02F1/5236C02F1/583
Inventor 澄田康光桑木康之梅泽浩之
Owner SANYO ELECTRIC CO LTD
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