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

Gas Phase Superoxide Radicals for Soil Remediation
Project ID : 85150

Yissum - Research Development Company of the Hebrew University

Description of the technology


Cleantech & Environment, Chemistry & Materials


Remediation, Hydrocarbons, Soil, Contamination, Superoxides, Gas, Ozone, Solvents, CleanTech

Current development stage

TRL4 Technology validated in lab


There are many contaminated sites all over the world and especially in industrialized countries. There is a constant demand for cost effective remediation solutions. 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

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


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

  • 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
  • cleantech

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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