Agriculture Technology Offers Page 3

Yissum - Research Development Company of the Hebrew University posted this:

"Complex" Pyridine [not simple PDADMAC.] Yael Mishael – Clay Polymer Sorbents for the Removal of Organic Micro-Pollutants (TTM:2876)– Prof. Mishael developed a patented clay based ‘pyridine’ composite to remove organic pollutants with a higher efficiency then activated carbon. The composite is cheap to produce yet highly effective in removing drugs, herbicides and pesticides. Patent Position: https://www.lens.org/lens/patent/WO_2016_151592_A1 Yissum Online: http://www.yissum.co.il/technologies/project/2876 Below thoughts were edited and approved by Yael Mishael: The complex pyridine based polymer is ‘designed’ for catching micro pollutants @ ng/Liter concentrations (single molecule - pharmaceuticals, herbicide, pesticide), but there are no regulations in place for treatment of micropollutants from waste water.  So there is no incentive for companies/municipalities to add expensive capex to treat this wastewater (capex for pumps, filtration columns etc – irrespective of adsorption resin). There is not really a need for filtering freshwater (tap water) through a complex resin since freshwater is not tested for micro pollutants and is not likely to have this and again there is no regulation for this.   On the other hand the simple ‘PDADMAC’ polymer can be used for filtering any dissolvable organic matter (humeric/muddy), and can be used for clearing up opaque fresh water prior to drinking or treated wastwater. So the results are clearly visible and can be used in municipalities and private home filtration systems, and it was found to be more efficient and more cost effective in purifying organic matter than granulated activated carbon. Project ID : 8-2012-2876
Clay-Polymer Sorbents for the Removal of Organic Micro-Pollutants from Water