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

Novel multi-stage planting defluorinated water treatment technology based on pre-reverse osmosis technique

A technology of reverse osmosis and water treatment, applied in the field of water treatment technology, can solve the problems of excessive aluminum ions, large floor area, complicated process and equipment, etc., and achieve the effect of improving treatment efficiency and prolonging service life

Active Publication Date: 2017-04-26
CHINA UNIV OF MINING & TECH +1
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this process has the advantages of being able to obtain the ideal defluoridation effect stably for a long time, and the hydroxyapatite defluoridation filter material does not need to be regenerated during operation, it still has the following obvious disadvantages: First, the aluminum-based water treatment material The content of aluminum ions is within the standard range, but it is still higher than that of non-aluminum-based water treatment materials, and there is a risk of aluminum ions exceeding the standard; second, the process and equipment for applying aluminum-based water treatment materials are relatively complicated, and have to go through filtration, coagulation, precipitation, etc. process, the equipment occupies a large area, and the operating cost is high; the third is that the polyaluminum chloride / hydroxyapatite copolymer material has the problem of reduced defluoridation effect at low temperature

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
  • Novel multi-stage planting defluorinated water treatment technology based on pre-reverse osmosis technique
  • Novel multi-stage planting defluorinated water treatment technology based on pre-reverse osmosis technique
  • Novel multi-stage planting defluorinated water treatment technology based on pre-reverse osmosis technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] combine figure 1 and figure 2 , a new process of multi-stage planting defluoridation water treatment based on pre-reverse osmosis technology proposed by the present invention, using fluorine-containing raw water, water treatment agent and planting hydroxyapatite filter particles as starting materials, after fluorine-containing Raw water pre-treatment, suspension mixing, primary planting of planting hydroxyapatite filter particles, secondary planting of planting hydroxyapatite filter particles, and defluoridation treated water filtration, to obtain treated defluoridated water, Its concrete steps include as follows:

[0033] Step 1, raw material metering configuration: starting raw materials include fluorine-containing raw water, calcium brine treatment agent and phosphate brine treatment agent, c...

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 relates to a novel multi-stage planting defluorinated water treatment technology based on a pre-reverse osmosis technique. The technology is characterized by comprising the steps that fluorine-containing raw water, a water treatment agent and planting type hydroxyapatite filter particles are taken as starting raw materials, fluorine-containing raw water pretreating, suspension mixing preparing, first-stage planting of the planting type hydroxyapatite filter particles, second-stage planting of the planting type hydroxyapatite filter particles and defluorination treatment water filtering are conducted, and then treated defluorinated clean water is obtained. According to the novel technology, a planting function and an implanting function are integrated into a whole, both the requirements of planting fluorapatite crystal galactite and the requirements of implanting fluorapatite crystal galactite can be met through first-stage planting and second-stage planting, the planting process and the implanting process are circularly conducted, therefore, the service life of the planting type hydroxyapatite filter particles is greatly prolonged, and regeneration equipment for the planting type hydroxyapatite filter particles does not need to be additionally arranged.

Description

technical field [0001] The invention belongs to the technical field of water treatment technology, and in particular relates to a new technology for multi-stage planting defluorination water treatment based on pre-reverse osmosis technology. Background technique [0002] Fluorine is one of the essential trace elements for the human body, but long-term drinking of high-fluorine water can lead to fluorosis, which will seriously affect human health. Therefore, the World Health Organization has announced a regulation that the fluorine content of drinking water should not exceed 1.5mg / L. Nowadays, the research on fluoride removal water treatment methods has been highly valued by various countries. The methods of fluoride removal water treatment published in the previous research mainly include coagulation sedimentation method, chemical precipitation method, electrodialysis method, electrocoagulation method, reverse osmosis method, nanofiltration method, ion Exchange method, adsor...

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): C02F9/04C02F101/14
CPCC02F1/001C02F1/441C02F9/00C02F2101/14C02F2301/08C02F2303/14
Inventor 冯莉陈缜缜施炎
Owner CHINA UNIV OF MINING & TECH
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