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Hypothesis: Naturally extracted polysaccharides, such as guar gum, are promising candidates for environmentally friendly flotation reagents. It is hypothesized that the kinetics of collision of sub- to millimeter gas bubbles with a hydrophobic graphite surface, and the stability of thin liquid film formed between the bubble and surface is affected by an adsorbed layer of guar gum. Experiments: A combination of gravimetric (quartz crystal microbalance with dissipation) and imaging (atomic force microscopy) techniques was used to investigate the adsorption of guar gum on graphite surface, while ...

Researchers from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and Dresden University of Technology (TUD) have unraveled the water adsorption mechanism in certain microporous materials – so-call ...

Understanding the behavior of coronaviruses during wastewater treatment processes is imperative, but little is known about the fate of coronaviruses during the coagulation of municipal wastewater by ferric chloride. This study investigated the fate of two surrogate coronaviruses, i.e., feline infectious peritonitis virus (FIPV) and human coronavirus 229E (HCoV-229E), by measuring their infectivity in filtered and unfiltered raw wastewater subject to ferric coagulation. The dynamics of relevant wastewater parameters, including pH, COD (chemical oxygen demand), phosphate, sulfide, and iron speci...

Over the years, it has become evident that microplastics are one of the most important contaminants of concern requiring significant attention. The large abundance of microplastics that are currently in the environment poses potential toxicity risks to all organisms that are exposed to them. Microplastics have been found to affect the physiological and biological processes in marine and terrestrial organisms. As well as being a contaminant of concern in itself, microplastics also have the ability to act as vectors for other contaminants. The potential for microplastics to carry pollutants and ...

Discover Anguil’s emission concentrator, an adsorption system designed to create highly concentrated air streams.