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Post : 370 Drinking Water Chemistry.... All the Below Contents include in this document.... • Ion Balance, • PH, • Carbonic Acid Equilibrium, • Saturation Index (SI), • Hardness. #chemistry #water #hardness

A collaborative team from The University of Queensland and Xiamen University of Technology in China have designed a molecule to trap sulfate in water. Too much of this naturally occuring sulfate can pollute drinking water and increase the rate of corrosion in pipes. Isn't it great when science is part of the answer to saving our water? #IER #drinkingwater #MarsIsForQuitters https://loom.ly/5fDNOaw

Check out our new published article in Journal of Hazardous Materials where we talk about the use of metagenomic data to enchance the machine learning prediction of contaminated groundwater. This article not only shows an increased of prediction accuracy, but also revealing some important microbial indicators using the Feature Importance analysis. Further analysis using the genome- and gene-centric analysis of metagenome reveals the degradation pathway of the petroleum contamination inside one of the microbial indicator. We also discuss some important challenges and future outlook of using gene-based monitoring for quick and accurate groundwater monitoring. For more information, please check out the full-text article on the link below https://lnkd.in/gut6PZXK

A new PFAS treatment paradigm is presented in our latest ES&T Letters article. We started with the question: What if we simply (and covalently) transformed PFAS to be highly insoluble (thus unavailable in water)? Led by Susanna Maisto (PhD student) with Doris Hong and Alexandra Griffith, we did just that through a novel, low-energy, green esterification pathway! Article highlights: ·     In the presence of decanol alone, PFOA readily transforms into a stable fluorinated ester (decylpentadecafluorooctanoate). ·     The fluorinated ester readily precipitates out of solution due to a significant decrease in solubility. ·     The mixture of PFOA and decanol, without additional surfactant, is sufficient for the formation of dry, nonaqueous phase emulsions required for the reaction to proceed. ·     Esterification occurs with a 90% yield near room temperature. ·     Reaction kinetics, mass balance, and products are detailed via FTIR and 19F qNMR for a range of conditions.

pH meter: A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH

Arsenic has long been considered “the king of poisons.” Films such as “Arsenic and Old Lace” by Frank Capra and “The Name of the Rose” by Jean-Jacques Annaud illustrate the deadly effect that a high dose has on people. But when someone experiences arsenic poisoning, it’s usually not the direct result of a diabolical plot – in fact, it usually isn’t. So how do you figure out how the arsenic got into someone’s bloodstream? That’s the question a team of fellow chemical engineers and I tackled more than 20 years ago after an abrupt jump in the number of U.S. cases of arsenic poisoning. We later published a peer-reviewed study documenting the investigation. Finding the source of arsenic poisonings is not always easy, but it’s extremely important for public health. Scientists often need to combine science and detective work, which led us to conclude that landfills could be a significant source of contamination https://lnkd.in/dJmTM6X3

It is a pleasure to share our recent article “Enhanced Sulfate Formation through Synergistic Effects of Chlorine Chemistry and Photosensitization in Atmospheric Particles” in ACS ES&T Air by Ruifeng Zhang and Chak Chan. Numerous studies have demonstrated that organic photosensitizers from biomass burning can generate oxidants to effectively convert inorganic and organic precursors into secondary aerosols. Particulate chloride ions can be internally mixed with organic photosensitizers in biomass-burning particles. The synergistic interaction between photosensitization and chlorine chemistry effectively enhances the generation of reactive oxygen/chlorine species, thereby increasing the atmospheric oxidative capacity. Link: https://lnkd.in/gDAnVMaw #KAUSTPSE https://pse.kaust.edu.sa/ #EnvironmentalSciences #AtmosphericPollution #AtmosphericChemistry #Photosensitization #ChlorineChemistry

Real-Time Stack Emission Measurements of Non-Traditional Odorous Species from an Industrial Processing Facility Malodor from industry is a common problem affecting communities with minimal regulation in the United States. Here, Leslie P. Silva and Eric Winegar discuss how selected ion flow tube mass spectrometry (SIFT–MS) offers real-time measurements of the sulfur-, oxygen-, and nitrogen-containing species leading to these odors. Link: https://lnkd.in/e4tncSEh

What does this danger symbol mean? 👉 Oxidising substances: These are solid, liquid, or gaseous substances that promote the combustion of other materials. 🔥 #abcr #GuteChemie #Chemistry #Question #Answer #HazardSymbol #OxidisingSubstances #FireSafety #ChemicalHazards #SafetyFirst #GoodToKnow