Yissum - Research Development Company of the Hebrew University

Technology for in Situ Water Purification of LNAPL Pollution

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

Summary of the technology

Project ID : 15-2018-4569

Yissum - Research Development Company of the Hebrew University

Description of the technology


Cleantech and Environment

Technology Keywords:

Water treatment, decontamination, remediation, AOP, hydrocarbons,LNAPL,

Advanced Oxidation Process, oil spill, wastewater, ground and underground water

Development Stage:

Validation in lab environment proof of concept and treatment of real cases

Our Innovation

LNAPL is a light non-aqueous phase liquid that exhibits a liquid density less than that of water, hence it forms a floating phase that is not soluble in water (e.g., gasoline, fuel oils). There are three types of possible LNAPL contamination: Oil spill at the water surface; industrial wastewater; long-term sources forcontinued ground and underground water contamination. Therefore, the LNAPLs are a great environmental concern. Despite a variety of available solutions, the global community is still searching for a robust, effective and rapid method suitable for both mobile and residual fraction.

Our technology is aphysicochemical method for rapid and effective in situ water purification of LNAPL pollutants (Organic compounds floating on a water surface). The method includes an AOP-based unique combination that contributes to the decomposition reaction rate of LNAPLs, conversion of 99% rapidly (< 1hr).


  • This complex disassembles the contaminates in to environmentally-friendly end products and the reaction does not produce hazardous side products
  • Relatively inexpensive due to use of previously developed method for radical production

The Opportunity

  • Water pollution due to LNAPLs (Light Non–Aqueous Phase Liquids) is a worldwide problem. The Globally Produced Water Treatment market is estimated at $8 billion and poised to reach approximately $8.6 billion by 2025, according to a report from Research and Markets.
  • The technology proposed is relevant for different mediums (waste, sea, and ground water) hence, the complex gives a solution for industrial, domestic and environmental contaminations. Industrial partners could include the electronic industry, water treatment companies, and petro chemical industry.
  • AOPs are considered a relatively expensive purification method. Prof. Sasson’s current technology is using an alternative advance AOP agent (not HO). This technology is based on a previously developed unique method for radical production, which was shown to be applicable, effective and inexpensive. This method can be of specific solution in different mediums.
  • Easy to implement (including from an airplane) in the case of crude oil spill.

Development Milestones

Preliminary results to support the core of the invention were obtained in a laboratory environment - sampleof contaminated industrial waste water (see figure below).

Next steps are in-situ scale up and pilot

Project manager

Matt Zarek

Project researchers

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

Related keywords

  • Protecting Man and Environment
  • Environment
  • Clean Production / Green Technologies
  • Waste Management
  • Water Management
  • Industrial Water Treatment
  • Pollution and Recycling Related
  • Water, sewerage, chemical and solid waste treatment plants
  • 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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