AbstractThe implementation of dual reticulation systems for returning recycled water to the home for nonpotable use is now common in new Australian housing developments. Managing the associated public health risk requires consideration of the potential for crossconnections between recycled and potable water pipes. While current protocols for detection exist, they are time consuming and cross-connections have occurred despite their implementation. Cross-connections may occur anywhere from a network to single...
Trace metals are found at low concentration in the ambient environment and are associated with adverse health effects.The gold standard metal measurement is Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES); however, sample preparation is laborious and expensive.The Xact 625 metals monitor uses non-destructive X-ray fluorescence technology. A built-in sample collection system enables near-real-time trace metal measurements in ambient air. Modifying the Xact monitor to also characterise metal...
This study converted sewage sludge into a carbonaceous catalyst via pyrolysis and employed it in the ozonation of hydroquinone. The catalyst was characterized by Mössbauer spectroscopy, X-ray photoelectron spectroscopy, temperature programmed desorption, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction. Intermediate products were detected by gas chromatography–mass spectrometry, and a pathway for hydroquinone degradation was proposed....
Laser Induced Breakdown Spectroscopy or LIBS is an analytical technique that`s been used in laboratories for many years. Most handheld LIBS analysers are used for fast sorting of alloys in scrap yards, and alloy identification and analysis in various applications within the metals industry.
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How does LIBS work?
During LIBS analysis, a focused pulsed laser hits the sample removing a very small amount of material from the surface. The sample is hit by thousands of pulses during a typical...
In this study, ZnO-TiO2 nanoparticles were synthesized from three different precursors for ZnO (zinc acetate di-hydrate, zinc nitrate hexahydrate and zinc sulfate heptahydrate) and titanium (IV) isopropoxide for TiO2. The prepared nanomaterials were calcined at 500 °C for 3 h and characterized by various physicochemical techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and transmission electron microscopy, combined with energy dispersive X-ray spectroscopy (TEM-EDS). The...
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