Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for repairing explosive polluting soil and underground water

A technology for polluted soil and remediation method, applied in the field of environmental pollution control and remediation, can solve problems such as reducing bioavailability and biodegradation efficiency, and achieve the effects of low operating cost, no secondary pollution, and simple process

Inactive Publication Date: 2009-11-04
ZHEJIANG UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since pollutants are often strongly adsorbed by the soil, their bioavailability / biodegradation efficiency is often reduced

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 repairing explosive polluting soil and underground water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1) The pollution plume of groundwater polluted by TNT is 1m 3 / h inject 0.5mol / L potassium chloride solution to make K + The clay minerals in the ionized groundwater undergo ion exchange to form an adsorption zone and intercept the explosive pollutants of TNT.

[0015] 2) In the adsorption interception zone and groundwater pollution area with 1m 3 Inject 50000mg / L potassium permanganate solution at a rate of / h to chemically oxidize and degrade the TNT explosion pollutants in the interception zone and the polluted area.

Embodiment 2

[0017] 1) The pollution plume of TNT polluted groundwater is 10m 3 / h inject 0.05mol / L potassium chloride solution to make K + The clay minerals in the ionized groundwater undergo ion exchange to form an adsorption zone and intercept the explosive pollutants of TNT.

[0018] 2) In the adsorption trap zone and groundwater pollution area with 10m 3 1000mg / L potassium permanganate solution is injected at a rate of / h to chemically oxidize and degrade the TNT explosive pollutants in the interception zone and the polluted area.

Embodiment 3

[0020] 1) The pollution plume of groundwater polluted by TNT is 2m 3 / h inject 0.25mol / L potassium chloride solution to make K + The clay minerals in the ionized groundwater undergo ion exchange to form an adsorption zone and intercept the explosive pollutants of TNT.

[0021] 2) In the adsorption interception zone and groundwater pollution area with 2m 3 Inject 25000mg / L potassium permanganate solution at a rate of / h to chemically oxidize and degrade the TNT explosion pollutants in the interception zone and the polluted area.

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 repairing soil and groundwater polluted by explosives. It comprises the following steps: 1) Potassium chloride solution or potassium permanganate solution is injected into the pollution plume of explosive-contaminated soil and groundwater to make K+ ions exchange with clay minerals in soil and groundwater to form an adsorption zone and retain Explosive pollutants, while MnO4- ions oxidize the trapped explosive pollutants; 2) inject potassium permanganate solution into the adsorption retention zone and the pollution area, and chemically oxidize the explosive pollutants in the retention zone and the pollution region. The invention is an in-situ restoration method for explosive-contaminated soil and groundwater, which has simple process, low technical requirements, low operating cost, thorough restoration and no secondary pollution, and is especially suitable for repairing the production and use of explosives such as aromatic nitro compounds , Site and groundwater pollution caused during the demolition process.

Description

Technical field [0001] The invention relates to environmental pollution control and restoration, in particular to a method for repairing soil and groundwater contaminated by explosives. Background technique [0002] The propellant and explosive industry has the characteristics of high energy density and high instantaneous power. It has a wide range of applications in military, industrial and agricultural construction and production. The propellant and explosive industry is one of the important pollution sources. Various pollutants are generated during the production process, which are discharged into the environment in the form of gas, liquid and solid. The explosive wastewater contains TNT, RDX and Octo Pollutants such as HMX are mainly derived from explosives and the raw materials and intermediate products used in their manufacture. Most of these pollutants contain nitro groups. Nitro compounds are generally considered to be difficult or even non-biodegradable and have acute to...

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): B09C1/08C02F1/28C02F1/72
Inventor 陈宝梁黄文海朱利中
Owner ZHEJIANG UNIV
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