Page 13 - tech fest 2025 אשדוד חוברת תקצירים

Book of Abstracts | 2025 Monitoring Adama Agan’s Herbicides in a Wastewater Treatment System
ChE-A-09
Orli Yarmolenko; orliku@ac.ace.ac.il
Advisors: Dr. Julia Penso1, Dr. Tamás Koltai2 1SCE - Shamoon College of Engineering ,Ashdod 2Adama Agan, Ashdod
The “Water Law” (1959) declares all water sources public property, requiring proper treatment and the return of wastewaters to the environment. “Adama Agan” is authorized to discharge wastewater to the sea containing up to 1,000 kg of active substances annually. Some herbicide residues may reach the marine ecosystem, causing ecological risks and potential damage. It is vital that we first research and understand the influence of all the various treatment steps, before offering any guidance regarding the company’s internal regulation. Liquid chromatography-mass spectroscopy technology enables the analysis of all the produced pollutants, even at extremely low concentrations thus supporting internal decision making regarding Adama Agan’s obligation to the regulator. Thus, such monitoring fosters sustainable, responsible stewardship of public resources.
Keywords: environmental protection, LC-MS technology, herbicides, responsible stewardship of resources, sustainability
Enhancing Minimum Ignition Energy (MIE) in Dry Agrochemical Formulations Using Flame Retardants
ChE-A-10
Savion Ladizinsky; savion.ladizinsky@gmail.com
Advisor: Dr. Julia Penso1, Mr. Sergio Nahmoud2 1SCE - Shamoon College of Engineering, Ashdod 2Adama Agan, Ashdod
This project investigates methods for increasing the minimum ignition energy (MIE) of dry agrochemical formulations to reduce flammability risks. Initial testing was conducted on hexazinone by adding 3% of flame retardant. The tested flame retardants included: aluminum hydroxide; magnesium hydroxide; a monoammonium + diammonium phosphate mix; Exolit OP 1230; and dextrose monohydrate. Only aluminum hydroxide, magnesium hydroxide and dextrose showed significant MIE improvements. Further testing assessed flame retardant concentrations at 1.5%, 3% and 6%. Each sample was ground using a hammer mill at 18,000 RPM, typically twice, to achieve a particle size ≤85μm. The results showed that higher MIEs correlate with both retardant type and concentration. Future stages include testing additional active ingredients.
Keywords: flame retardants, grinding, ignition energy, particle size, powder safety
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