Search results for " Potable water"

showing 3 items of 3 documents

Ag11(SG)7 : A New Cluster Identified by Mass Spectrometry and Optical Spectroscopy

2014

We report a one-step and high yield synthesis of a red-luminescent silver cluster with the molecular formula, Ag11(SG)7 (SG: glutathionate) via reduction of silver ions by sodium borohydride in the presence of the tripeptide, glutathione (GSH). The as-prepared cluster shows prominent absorption features at 485 and 625 nm in its UV-vis absorption spectrum. Aging of the as-prepared cluster solution led to the disappearance of the 625 nm peak, followed by broadening of the 485 nm peak to give three maxima at ?487, 437, and 393 nm in its absorption spectrum. These peaks remain unchanged even after polyacrylamide gel electrophoresis (PAGE), where a single band was observed confirming high purity…

Absorption spectroscopyta114Electrospray ionizationAnalytical chemistryMass spectrometryAbsorption spectra; Density functional theory; Electrodeposition; Electromagnetic wave absorption; Electrophoresis; Electrospray ionization; Isotopes; Light absorption; Mass spectrometry; Metal ions; Potable water; Spectrometry; Ultraviolet spectroscopy; Absorption features; Electrospray ionization mass spectrometry; High yield synthesis; Molecular formula; Optical spectroscopy; Polyacrylamide gel electrophoresis; Sodium boro hydrides; UV-VIS absorption spectra; Absorption spectroscopySurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsIonSodium borohydridechemistry.chemical_compoundGeneral EnergyUltraviolet visible spectroscopychemistryPhysical and Theoretical ChemistryAbsorption (electromagnetic radiation)Spectroscopyta116Journal of Physical Chemistry C
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Coupling of electromembrane processes with reverse osmosis for seawater desalination: Pilot plant demonstration and testing

2022

Reverse osmosis (RO) is the most widespread technology to produce drinking water from seawater (SW). However, the integration of different membrane processes offers interesting alternatives. In this work, electromembrane processes were integrated with RO to desalinate real seawater in a pilot plant with 25 m3/day capacity. Electrodialysis (ED, either two-stage or single stage), shortcut reverse electrodialysis (scRED) and assisted reverse electrodialysis (ARED) pre-desalinated seawater before RO with the ED-ED-RO, ED-RO, and scRED-ARED-RO process schemes. Treated wastewater was used as salt sink in the scRED-ARED tests. The performance of the pilot plant can be summarized as follows: water …

Field test Hybrid membrane process Ion-exchange membrane Potable water Impaired waterSettore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciHybrid membrane processImpaired waterMechanical EngineeringGeneral Chemical EngineeringPotable waterSettore ING-IND/25 - Impianti ChimiciField testGeneral Materials ScienceGeneral ChemistryIon-exchange membraneWater Science and Technology
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Energy, water and environmental balance of a complex water supply system

2015

The present paper describes the analysis of water and energy balance in a complex urban water supply system. The analysis was carried out employing Life Cycle Analysis (LCA) methodologies. The LCA approach was integrated with the analysis of the system energy and water balance. For a real size water supply system, based on the results of the individual LCAs, the current baseline was constructed highlighting the water, energy and environmental (in terms of CO2eq emissions in the atmosphere) costs of supplied water. Then, three different mitigation measures have been evaluated: the first is based on energy production by installation of photovoltaic systems; the second is based on energy recov…

Water resourcesEnergy recoveryWater conservationWater balancelife cycle assessment scenario analysis potable water supply sanitation urban water systemsbusiness.industryPhotovoltaic systemEnergy balanceEnvironmental engineeringWater supplyEnvironmental sciencebusinessLife-cycle assessmentWIT Transactions on Ecology and the Environment
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