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

A method for treating reverse osmosis concentrate by using singlet oxygen

A technology of reverse osmosis concentrate and singlet oxygen, which is applied in the directions of oxidized water/sewage treatment, special treatment targets, water/sewage treatment, etc., can solve the problem of no reverse osmosis concentrate, etc., and achieves simple operation and moderate price. , the effect of chemical stability

Active Publication Date: 2017-08-29
HARBIN UNIV OF SCI & TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is currently no effective method for treating reverse osmosis concentrate

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
  • A method for treating reverse osmosis concentrate by using singlet oxygen
  • A method for treating reverse osmosis concentrate by using singlet oxygen
  • A method for treating reverse osmosis concentrate by using singlet oxygen

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0022] Embodiment 1: This embodiment is a method for treating reverse osmosis concentrate by using singlet oxygen, which is realized through the following steps:

[0023] 1. Add pyruvic acid to the water to be treated by reverse osmosis, and perform reverse osmosis treatment;

[0024] Two, add peroxide to the reverse osmosis concentrated solution obtained after step one reverse osmosis treatment, stir, control the mol ratio of pyruvic acid and peroxide to be 1:(1~10), control peroxide concentration to be 100~ 5000mg / L, the hydraulic reaction residence time is 30-120min, that is, the treatment of the reverse osmosis concentrate with singlet oxygen is completed.

[0025] For the specific process of this implementation mode, see figure 1 .

[0026] The principle of a method for treating reverse osmosis concentrate by using singlet oxygen in this embodiment is as follows: first, in the water to be treated by reverse osmosis, the added pyruvic acid can interact with the calcium a...

specific Embodiment approach 2

[0028] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the peroxide is a mixture of one or more of persulfate and percarbonate in any ratio. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0029] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the persulfate is sodium persulfate (NaHSO5 ), potassium persulfate (KHSO 5 ), ammonium persulfate (NH 4 HSO 5 ), calcium persulfate (Ca(HSO 5 ) 2 ), magnesium persulfate (Mg(HSO 5 ) 2 ) in one or several mixtures in any ratio. Others are the same as in the first embodiment.

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 reverse osmosis concentrate treatment method and especially relates to a method for singlet state oxygen treatment on reverse osmosis concentrate. The method comprises adding pyruvic acid into water to be treated, carrying out reverse osmosis treatment, adding peroxides (such as peroxymonosulfate and percarbonate) into the pyruvic acid-containing reverse osmosis concentrate, carrying out stirring and carrying a reaction process. Pyruvic acid is bonded to calcium and magnesium ions in water to be treated so that a pyruvate complex is produced and scale inhibition effects are obtained, the peroxides undergo a reaction in the presence of the pyruvate as a catalyst to produce singlet state oxygen, and the produced high-activity singlet state oxygen can fast react with pollutants in the reverse osmosis concentrate, oxidize organic matters and inactivate microbes so that pollutant removal is realized. The method utilizes green and safe pyruvic acid and peroxides without toxic or side effect, has high reaction depollution efficiency, does not produce poisonous and harmful by-products and is a high-efficiency reverse osmosis concentrate treatment method with functions of complexation scale inhibition and oxidation pollutant removal.

Description

technical field [0001] The invention relates to a method for treating reverse osmosis concentrated liquid, in particular to a method for treating reverse osmosis concentrated liquid with singlet oxygen. Background technique [0002] Reverse osmosis treatment technology (RO) is a membrane separation and filtration technology powered by pressure difference. It has the advantages of low energy consumption, easy operation, small system footprint, and good treatment effect. With the development of recovery system and the improvement of pretreatment technology, the cost of reverse osmosis treatment technology has decreased year by year. At present, it has been widely used in scientific research, medicine, food, beverage, seawater desalination, environmental protection and other fields. [0003] However, while reverse osmosis technology is used to produce recycled water, the impurities in the influent water are concentrated at a high concentration, which can produce a reverse osmo...

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 Patents(China)
IPC IPC(8): C02F1/72
CPCC02F1/722C02F2209/08C02F2303/22C02F2305/023
Inventor 庞素艳杨悦江进袁立鹏
Owner HARBIN UNIV OF SCI & 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

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