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Towards stormwater reuse risk management plans: Methodology and catchment scale evaluation of QMRA.
Sci Total Environ
January 2025
Department of Science and Engineering of Materials, Environment and Urban Planning - SIMAU, Polytechnic University of Marche, via Brecce Bianche 12, 60131 Ancona, Italy.
The reuse of stormwater represents a potential option for meeting water demands in water stressed regions as well as preventing and mitigating diffuse pollution of receiving water bodies. Particularly, the elaboration of a risk management plan for stormwater reuse may help to understand associated environmental and public health risks and design fit-for-purpose water treatment processes. In this work, it is presented an innovative methodology to perform quantitative microbial risk assessment (QMRA) for stormwater reuse by using data simulated by SWMM software.
View Article and Find Full Text PDFPurification of mineral oil aromatic hydrocarbons and separation based on the number of aromatic rings using a liquid chromatography silica column. An alternative to epoxidation.
J Chromatogr A
January 2025
Analytical Chemistry Laboratory, Gembloux Agro-Bio Tech, University of Liège, Passage des Déportés 2, Gembloux 5030, Belgium. Electronic address:
The analysis of mineral oil aromatic hydrocarbons (MOAH) in vegetable oils is currently associated with high uncertainty due to various factors ranging from sample preparation to data interpretation. One significant factor is the coelution of biogenic compounds of terpenic origin with the MOAH fraction during chromatographic analysis. The common purification method is epoxidation, a chemical reaction that changes the polarity of the interferences, allowing their separation from MOAH.
View Article and Find Full Text PDFHybrid in-situ and ex-situ hydrolysis of catalytic epoxidation neem oil via a peracid mechanism.
Sci Rep
January 2025
Chemical Engineering Studies, College of Engineering, Universiti Teknologi MARA, Cawangan Johor, Kampus Pasir Gudang, Masai Johor, 81750, Malaysia.
The depletion of oil reserves and their price and availability volatility raise researchers' concerns about renewable resources for epoxidized material. This study aims to produce in situ and ex-situ hydrolyzed dihydroxy stearic acid via the epoxidation of neem oil. Epoxidized neem oil was synthesized using in situ-generated performic acid.
View Article and Find Full Text PDFAssessing the effectiveness of performic acid disinfection on effluents: focusing on bacterial abundance and diversity.
Environ Sci Pollut Res Int
October 2024
Laboratoire Eau Environnement Et Systèmes Urbains (Leesu), Univ Paris Est Creteil, Ecole Des Ponts, 61 Avenue du Général de Gaulle, 94000, Créteil, France.
Article Synopsis
- * Performic acid (PFA) is shown to be a powerful disinfectant with minimal environmental impact, but its effects on entire microbial communities, especially resistant strains, are still not fully understood.
- * This study found that PFA significantly reduces microbial viability and alters bacterial composition at low concentrations and short contact times, highlighting its potential for widespread use in wastewater treatment facilities.
Rapid and Highly Selective Fe(IV) Generation by Fe(II)-Peroxyacid Advanced Oxidation Processes: Mechanistic Investigation via Kinetics and Density Functional Theory.
Environ Sci Technol
September 2024
School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.
High-valent iron (Fe(IV/V/VI)) has been widely applied in water decontamination. However, common Fe(II)-activating oxidants including hydrogen peroxide (HO) and persulfate react slowly with Fe(II) and exhibit low selectivity for Fe(IV) production due to the cogeneration of radicals. Herein, we report peroxyacids (POAs; R-C(O)OOH) that can react with Fe(II) more than 3 orders of magnitude faster than HO, with high selectivity for Fe(IV) generation.
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