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

Method for using tea extract as underwater organophosphorus pesticide chlorpyrifos treatment agent

A technology of organophosphorus pesticides and tea extracts, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as high risk of cancer, and achieve simple and efficient treatment process Reduce the lighting time, the effect of a wide range of applications

Active Publication Date: 2013-11-06
ANHUI AGRICULTURAL UNIVERSITY
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, investigations on the relationship between the incidence of certain cancers and etiology and a large number of animal experiments have shown that long-term drinking of chlorinated drinking water has a high risk of dying from digestive and urinary system cancers. The product is a causative agent of various cancers

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 using tea extract as underwater organophosphorus pesticide chlorpyrifos treatment agent
  • Method for using tea extract as underwater organophosphorus pesticide chlorpyrifos treatment agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] one such as figure 1 The photolysis treatment unit shown is used to treat chlorpyrifos in water, the concentration of chlorpyrifos in the water is 5.0μM, the light source is a high-pressure mercury lamp, the intensity is 150W, and the hydraulic retention time in the unit is 10min. After passing through the treatment unit, the concentration of chlorpyrifos in water is reduced to 2.0 μM, reduced by 60%. Leave the light source, the role of EGCG can keep the concentration of chlorpyrifos in the water does not rise within 48 hours, during which the concentration of Al and EGCG is added 3+ , Zn 2+ or Fe 3+ , generate complex precipitates, and completely remove chlorpyrifos from water after filtration. Placed for a long time or illuminated again without adding Al 3+ , Zn 2+ or Fe 3+ Removal of complexed precipitates may allow EGCG to release chlorpyrifos again. The power consumption of the treatment process is 0.005WH / L.

[0022] Effect of EGCG (25.0 μM) treatment on...

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 using a tea extract as an underwater organophosphorus pesticide chlorpyrifos treatment agent. The method comprises the steps of: placing a tea extract EGCG directly into sewage, using a high pressure mercury lamp to irradiate, adding a complexing agent into the sewage irradiated by the high pressure mercury lamp, and filtering out the generated precipitate. The treatment agent involved in the invention has the advantages of naturality, environmental protection, low dosage, convenient use and operation, low operation cost, high efficiency, low environmental pollution, wide application scope, no influence on running and operation of the system itself, stability under environmental condition change, no need for a special production process, direct preparation, and no harm to the human body and other living things, and can substantially save energy when it is used in optical processing technologies.

Description

technical field [0001] The invention relates to a method for removing organophosphate-contaminated chlorpyrifos from water. More specifically, the present invention relates to a method for removing dissolved organic pollutant chlorpyrifos from water by using tea extract EGCG as a treatment agent, and the method is suitable for micro-pollution treatment of drinking water and production wastewater treatment. Background technique [0002] Chlorpyrifos (CP, Chlorpyrifos, O,O-diethyl-O-(3,5,6-trichloro-2-pyridyl)thiophosphoric acid) is currently produced and sold worldwide It is one of the most widely used pesticide varieties, and has been registered and registered in 14 countries including China, the United States, Australia, Japan, etc., and the number of registered varieties has reached 1,100. Although it is the only organic phosphorus variety approved by the World Health Organization, chlorpyrifos is toxic to human nerves and lungs, especially to children; it is highly toxi...

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): C02F9/08
Inventor 张蓉岳永德花日茂汤锋施艳红唐俊李学德吴祥为
Owner ANHUI AGRICULTURAL UNIVERSITY
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