Supercharge Your Innovation With Domain-Expert AI Agents!

Method for extracting panaplate from mother solution or waste water of dipterex

A technology of trichlorfon and dichlorvos, which is applied in the field of dichlorvos production and trichlorfon production wastewater treatment, can solve the problems of unfavorable follow-up treatment and high salt content in wastewater, and achieve the effects of being beneficial to environmental protection, high purity, and eliminating the difficulty of wastewater treatment

Inactive Publication Date: 2012-05-30
NANTONG VOCATIONAL COLLEGE
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the salt content in the wastewater is high, which is unfavorable for subsequent treatment.

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

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] Salt out 1L of production waste water with refined trichlorfon, containing 3.6% of trichlorfon, COD 156396mg / L; add 250mg of aluminum sulfate, adjust the pH value to 6.5 with NaOH, stir with air for 2 hours, and precipitate and separate to obtain orange-yellow oil 24ml of dichlorvos contains 75.12% of dichlorvos; the COD of wastewater after treatment is 68436mg / L, containing 0.021% of trichlorfon.

example 2

[0017] Use refined trichlorfon to salt out 1L of production wastewater, containing 5.5% of trichlorfon; add 250mg of aluminum sulfate, adjust the pH value to 9.0 with NaOH, and stir with air for 2 hours, precipitate and separate to obtain 42ml of brown oily dichlorvos, containing 70.89% of dichlorvos %; Wastewater COD is 67413mg / L, containing trichlorfon 0.015%.

example 3

[0019] Use refined trichlorfon to salt out 1L of production wastewater, containing 7.5% of trichlorfon, and COD is 226812mg / L; add 250mg of aluminum sulfate, adjust the pH value to 8.5 with NaOH, and stir with air for 2 hours, and the precipitate is separated to obtain brown oily 58ml of dichlorvos contains 75.34% of dichlorvos; the COD of wastewater after treatment is 69274mg / L, containing 0.021% of trichlorfon.

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 extracting panaplate from mother solution or waste water of dipterex. The method comprises the following steps: adjusting the PH value of the mother solution or waste water of dipterex to 6-10 by alkali, then adding emulsion splitter, inflating air and churning for 1 to 2 hours to separate the Panaplate by deposition. The alkali refers to sodium hydroxide or sodium hydroxide solution. The raw material is mother solution or waste water of dipterex. One or a mixture of the aluminium sulphate, aluminium chloride and poly aluminum chloride can be used as the emulsion splitter. The invention can be used to the separation of Panaplate in the Panaplate production and the pre-treatment of dipterex waste water. The method of the invention is simple in technology, convenient in operation and cheap in equipment investment. With the method, the separated Panaplate is of higher purity and better environmental protection.

Description

technical field [0001] The invention belongs to the field of dichlorvos production and wastewater treatment of trichlorfon production, in particular a method for separating dichlorvos from trichlorfon production mother liquor or wastewater, which is mainly applied to the separation of dichlorvos in dichlorvos production and the pretreatment of trichlorfon production wastewater . Background technique [0002] Both dichlorvos and trichlorfon are high-efficiency poisoning pesticides. These two species have been produced and used in my country for more than 40 years. With the rapid development of green agriculture, the pollution of highly toxic and highly residual pesticides to the environment has been widely concerned by people. In addition, the use of highly toxic and highly residual pesticides such as methamidophos has been banned in various places. The proportion of demand for new types of public hazard pesticides continues to rise, and the proportion of demand for common p...

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): C02F1/66C02F1/52C07F9/113C02F101/34C02F101/36C02F101/38C02F103/36
Inventor 解彦刚蔡凤黄徽何晓春丁邦琴周君
Owner NANTONG VOCATIONAL COLLEGE
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com