Yissum Research Development Company of the Hebrew University of Jerusalem Ltd.

Gadot Petrochemical Industries, Inc.

E.i. Dupont De Nemours and Company

Airovation Technologies Ltd.

Hadasit Medical Research Services and Development Ltd.

Makhteshim Chemical Works Ltd.

Arkal Filtration Systems C.s. Ltd

Energystoredge Ltd.

Yoel Sasson

Zach Barnea

Uri Stoin

Hani Gnayem

Harold Wiener

Ariel Givant

Effi Dvash

Jihad Dakka

Zoran Amikam

Marat Maayan

Tatyana Sachs

Michael M Friedman

Doron Weinfeld

Sorel Rothschild

Rami Mosheiff

Jacob Rachmilewitz

Ashutosh Joshi

Benny Bogoslavsky

Yuri Kolodny

Itay Kreisel

Yaakov Mines

Mandan Chidambaram

Michael Grabarnick

Sanaa Shenawi-Khalil

Dakka Jihad

Judith Toubiana

Ada Grin

Shmuel Zbaida

Shmuel Vandel

Amikam Zoran

Evgeny Gamerman

Avraham Zakay

A method for improving indoor air quality in a room, comprising drawing air from the room and guiding the air into a gas/liquid contactor charged with aqueous alkali hydroxide/HOsolution, passing the air through a perforated membrane installed in the gas/liquid contactor below the surface level of the aqueous alkali hydroxide/HOsolution, such that bubbles produced travel through said solution, and getting treated air with improved quality from said gas/liquid contactor, said treated air is characterized by having: reduced carbon dioxide levels; and/or reduced VOC levels; and/or reduced microbiological load. An air purifier to carry out the method is also provided.

Method and apparatus for purifying air from biological agents and volatile organic compounds

The invention provides a process for the preparation of bismuth oxyhalide, comprising a precipitation of bismuth oxyhalide in an acidic aqueous medium in the presence of a reducing agent. Also provided are bismuth oxyhalide compounds doped with elemental bismuth Bi. The use of Bidoped-bismuth oxyhalide as photocatalysts in water purification is also described.

Photocatalysts based on bismuth oxyhalide, process for their preparation and uses thereof

An air treatment unit may include an air inlet to receive a flow of input air for treatment and a reaction reservoir configured to hold an aqueous air treatment solution. The air treatment unit may also include an air dispersing element flow connected with the air inlet, wherein the air dispersing element is configured to convert at least a portion of the flow of input air into a plurality of microbubbles for introduction into the aqueous air treatment solution, such that an amount of one or more target gas species contained within the plurality of microbubbles is reduced through reaction with the aqueous air treatment solution. The unit may include an air outlet configured to output treated air from the reaction reservoir.

Air treatment systems and methods

Processes of treating plastic waste that include converting one or more plastic polymers into a liquid form either by dissolving in an organic solvent or by melting, and degrading the polymer(s) with the aid of alkali hydroxide and hydrogen peroxide are described. The processes can be performed in the presence of a phase transfer catalyst.

Process for treating plastic waste

The invention relates to a process for generating hydrogen, comprising decomposing in a reaction vessel aqueous alkali formate in the presence of a transition metal-containing catalyst system dissolved in one or more organic solvent(s), characterized in that said organic solvent(s) comprise at least one solvent which is water-immiscible, thereby releasing hydrogen and forming bicarbonate in the aqueous phase, and separating the catalyst-containing organic solvent(s) from said bicarbonate. Also disclosed are apparatuses for carrying out hydrogen generation.

Methods and devices for storage and release of hydrogen

A process for removing impurities from a flue gas, comprising treating the flue gas with a liquid absorbent comprising (i) a precursor of chlorine dioxide and (ii) an organic ionic liquid, and releasing a purified flue gas into the atmosphere. The process is useful for removing Hg, SOand NOx.

Process for removing pollutants from a flue gas

The invention provides a process for the preparation of bismuth oxyhalide, comprising a precipitation of bismuth oxyhalide in an acidic aqueous medium in the presence of a reducing agent. Also provided are bismuth oxyhalide compounds doped with elemental bismuth Bi. The use of Bidoped bismuth oxyhalide as photocatalysts in water purification is also described.

The invention provides a process for the production of hydrogen, comprising catalytically decomposing a concentrated aqueous solution of potassium formate in a reaction vessel to form bicarbonate slurry and hydrogen, discharging the hydrogen from said reaction vessel, and treating a mixture comprising the bicarbonate slurry and the catalyst with an oxidizer, thereby regenerating the catalyst. Pd/C catalysts useful in the process are also described.

Method for storage and release of hydrogen

Bismuth oxyhalide-added building materials are disclosed. The building material is a binder-containing building material, which sets and harden when mixed with water, such as gypsum and cement-based building material. Methods for applying bismuth oxyhalide&#x2014;comprising coatings onto surfaces of building materials, to protect them against pollutants, are described.

Additive-incorporated building materials

The invention provides a process for treating a soil contaminated with a pollutant selected from the group consisting of petroleum products and aromatic hydrocarbons, comprising bringing into contact with said soil an aqueous solution in which hydrogen peroxide and hydroxide source are combined.

Remediation of contaminated soils

Mixed chloride-bromide bismuth oxyhalide compounds, with the molar ratio chloride:bromide being equal to or greater than 1:1, in the form of microspheres exhibiting flower-like surface morphology, are disclosed. Processes for preparing the compounds, formulations of the compounds and a method for purifying water using said compounds are also disclosed.

Bismuth oxyhalide compounds useful as photocatalysts

Process for treating a medium by the removal or destruction of one or more undesired substances present in said medium, comprising combining hydrogen peroxide and alkali hydroxide in an aqueous solution to form superoxide, and bringing the resultant superoxide-containing solution into contact with said medium. The process is useful for the destruction of halogenated organic pollutants and also for carbon dioxide removal from flue gases. The process can also be applied for soil remediation.

Preparation of an aqueous reagent for the absorption or destruction of pollutants

The present invention relates to a membrane comprising at least one positively charged, synthetic, hydrophobic polymer, at least one hydrophilic polymer and at least one plasticizer; wherein said membrane is flexible and is capable of supporting at least one of cell adherence, cell proliferation or cell differentiation. The invention further relates to use of a membrane of the invention in the preparation of an implantable devices including cell delivery systems, cell growing surfaces and scaffolds. The invention further provides methods for promoting tissue regeneration in a defected tissue region applying membranes of the invention.

Tissue regeneration membrane

The invention is a process for absorbing sulfur dioxide from a gaseous stream with the aid of an ionic liquid, followed by the release of sulfur dioxide from the ionic liquid on addition of a polar solvent and the regeneration of the ionic liquid.

Growing community of inventors

Jerusalem, Israel

Yoel Sasson