Yissum - Research Development Company of the Hebrew University

Gas Phase Superoxide Radicals for Soil Remediation

Posted by Yissum - Research Development Company of the Hebrew UniversityResponsive · Innovative Products and Technologies · Israel

Summary of the technology

This project is a composition of reagents for in situ chemical remediation of contaminated soils based on gas phase superoxide radicals
Project ID : 15-2018-4561

Yissum - Research Development Company of the Hebrew University


There are many areas contaminated soil all over the world and especially in industrialized countries. There is a constant demand for cost effective remediation solutions, in particular for Oil contamination. Existing ozone technologies often have operational and safety issues and call for high-voltage-equipment as well as increase the flammability of many materials.

Our Innovation

The proposed novel technology is an efficient process for decontamination of soil, particularly oil contaminated soil.

This technology is a unique and efficient methodology for in situ chemical remediation of contaminated soils by a unique superoxide reagent in the gas phase.


  • Efficient permeation capacity of the reactive material
  • Minimal quantity of reagents needed and rapid reaction rates.
  • Gas phase oxidant for buried/contaminated soil/land
  • No need for high voltage equipment
  • Low cost inputs


  • This reagent is inflammable and there is no need of high-voltage-equipment.
  • Concluded a conversion of 20% of the oil after very short reaction time with low quantities of materials consumed.


Superoxide production in a gas phase and its application is efficient and swift. The proposed process is superior, safer and environmentally friendly in comparison with the standard gas ISCO technology (ozone) for soil purification. There is a great economic potential of this new approach.

Project manager

Matt Zarek

Project researchers

Yoel (Casali) Sasson
HUJI, Faculty of Science
The Institute of Chemistry

Related keywords

  • Materials Technology
  • Chemistry
  • Environment
  • Clean Production / Green Technologies
  • Waste Management
  • Chemicals and Materials
  • Pollution and Recycling Related
  • Chemistry & Materials
  • biodegradable

About Yissum - Research Development Company of the Hebrew University

Technology Transfer Office from Israel

Yissum Research Development Company of the Hebrew University of Jerusalem Ltd. Founded in 1964 to protect and commercialize the Hebrew University’s intellectual property. Ranked among the top technology transfer companies, Yissum has registered over 8,900 patents covering 2,500 inventions; has licensed out 800 technologies and has spun-off 90 companies. Products that are based on Hebrew University technologies and were commercialized by Yissum generate today over $2 Billion in annual sales.

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