The Experts below are selected from a list of 162 Experts worldwide ranked by ideXlab platform

Darren Delai Sun - One of the best experts on this subject based on the ideXlab platform.

  • a low energy forward osmosis process to Produce Drinking Water
    Energy and Environmental Science, 2011
    Co-Authors: Zhaoyang Liu, Hongwei Bai, Jonathan Lee, Darren Delai Sun
    Abstract:

    Forward osmosis (FO) represents a tremendous and untapped opportunity with the potential to solve the global Water crisis. The biggest challenge facing the application of FO technology is the economical separation of Drinking Water from its draw solution. Using advances in nanotechnology, we herein describe a novel draw solute separation system which mimics a natural “destabilization” phenomenon with the help of superparamagnetic nanoparticles, thus separating Drinking Water from draw solution without any intensive energy, such as, hydraulic pressure or heat. Also, this process is not afflicted by the commonly observed problem of reverse salt diffusion. All these characteristics of this novel draw solution separation system make FO to be an eco-sustainable process for the production of Drinking Water from wasteWater without any waste.

Philippe Moulin - One of the best experts on this subject based on the ideXlab platform.

  • transportable membrane process to Produce Drinking Water
    Desalination, 2009
    Co-Authors: Elise Barbot, Emilie Carretier, Y Wyart, Benoit Marrot, Philippe Moulin
    Abstract:

    Abstract When natural disasters occur, the shortage of Drinking Water becomes a problem not only for the disaster victims, but also for the people involved in their rescue and safekeeping. A Water purification unit has been designed, meeting specific criteria of efficiency, size, weight and power consumption. A hollow fiber ultrafiltration (UF) membrane module, with a 100 kDa cut off, has been chosen and integrated into a miniature pilot plant, transportable by plane and portable by four men. The power necessary for operating the pilot plant is 0.6 kW and can be provided by an electricity generator. In less than 30 min, the unit is ready for production. The maximum production reaches 1000 L h −1 , which can easily meet the demands of Drinking Water for the rescue team and disinfected Water for medical care.

Sascha R A Kersten - One of the best experts on this subject based on the ideXlab platform.

  • design of a process for supercritical Water desalination with zero liquid discharge
    Industrial & Engineering Chemistry Research, 2015
    Co-Authors: Sybrand J Metz, Sascha R A Kersten
    Abstract:

    Conventional desalination methods have a major drawback; the production of a liquid waste stream which must be disposed. The treatment of this waste stream has always presented technical, economic, and environmental challenges. The supercritical Water desalination (SCWD) process meets these challenges as it allows for the treatment of salt-Water streams with zero liquid discharge (ZLD). An experimental apparatus has been designed, built, and operated to show the proof of principle of the SCWD process using NaCl–H2O as a model solution. Next, a SCWD process with a two-stage separation step was designed. Enthalpy calculations for a 3.5 wt % NaCl feed and experimental results show that the SCWD process operated at 460 °C and 300 bar will Produce Drinking Water (750 ppm total dissolved solids) and salt crystals (2–5 μm) with an estimated stand-alone thermal energy consumption of 450 MJth/m3 product Water.

Farré Marinella - One of the best experts on this subject based on the ideXlab platform.

  • Ultra-trace analysis of cyanotoxins by liquid chromatography coupled to high-resolution mass spectrometry
    'MDPI AG', 2020
    Co-Authors: Filatova Daria, Núñez Burcio Oscar, Farré Marinella
    Abstract:

    The increasing frequency of episodes of harmful algal blooms of cyanobacterial origin is a risk for ecosystems and human health. The main human hazard may arise from Drinking Water supply and recreational Water use. For this reason, efficient multiclass analytical methods are needed to assess the level of cyanotoxins in Water reservoirs and tackle these problems. This work describes the development of a fast, sensitive and robust analytical method for multiclass cyanotoxins determination based on dual solid-phase extraction (SPE) procedure using a polymeric cartridge first Oasis HLB (Waters Corporation, USA), and second, a graphitized non-porous carbon cartridge, SupelcleanTM ENVI-CarbTM (Sigma-Aldrich, USA), followed by ultra-high performance liquid chromatography high-resolution mass spectrometry (SPE-UHPLC-HRMS). This method enabled the analysis of cylindrospermopsin, anatoxin-a, nodularin and seven microcystins (MC-LR, MC-RR, MC-YR, MC-LA, MC-LY, MC-LW, MC-LF). The method limits of detection (MLOD) of the validated approach were between 4 and 150 pg/L. The analytical method was applied to assess the presence of the selected toxins in 21 samples collected in 3 natural Water reservoirs in the Ter River in Catalonia (NE of Spain) used to Produce Drinking Water for Barcelona city (Spain)

  • Ultra-Trace Analysis of Cyanotoxins by Liquid Chromatography Coupled to High-Resolution Mass Spectrometry
    'MDPI AG', 2020
    Co-Authors: Filatova, Daria G., Núñez Oscar, Farré Marinella
    Abstract:

    © 2020 by the authors.The increasing frequency of episodes of harmful algal blooms of cyanobacterial origin is a risk to ecosystems and human health. The main human hazard may arise from Drinking Water supply and recreational Water use. For this reason, efficient multiclass analytical methods are needed to assess the level of cyanotoxins in Water reservoirs and tackle these problems. This work describes the development of a fast, sensitive, and robust analytical method for multiclass cyanotoxins determination based on dual solid-phase extraction (SPE) procedure using a polymeric cartridge, Oasis HLB (Waters Corporation, Milford, MA, USA), and a graphitized non-porous carbon cartridge, SupelcleanTM ENVI-CarbTM (Sigma-Aldrich, St. Louis, MO, USA), followed by ultra-high-performance liquid chromatography high-resolution mass spectrometry (SPE-UHPLC-HRMS). This method enabled the analysis of cylindrospermopsin, anatoxin-a, nodularin, and seven microcystins (MC-LR, MC-RR, MC-YR, MC-LA, MC-LY, MC-LW, MC-LF). The method limits of detection (MLOD) of the validated approach were between 4 and 150 pg/L. The analytical method was applied to assess the presence of the selected toxins in 21 samples collected in three natural Water reservoirs in the Ter River in Catalonia (NE of Spain) used to Produce Drinking Water for Barcelona city (Spain).This research was funded by the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 722493 (NaToxAq); and by the Generalitat de Catalunya (Consolidated Research Group “2017 SGR 1404-Water and Soil Quality Unit”).Peer reviewe

Danubia Paula Cadore Favaretto - One of the best experts on this subject based on the ideXlab platform.

  • reverse osmosis for desalination of Water from the guarani aquifer system to Produce Drinking Water in southern brazil
    Desalination, 2014
    Co-Authors: Vandre Barbosa Briao, Jonas Magoga, Marcelo Hemkemeier, Edesnei Barbosa Briao, Laisa Girardelli, Luana Sbeghen, Danubia Paula Cadore Favaretto
    Abstract:

    Abstract Like other regions around the world, southern Brazil has experienced periods of drought, having to find alternative Water resources for producing Drinking Water during these times. The deep wells drilled in the Guarani Aquifer could help with this Water imbalance, but the Water, in some places, is brackish. This work is an exploratory study of the use of the brackish Water from the Guarani Aquifer as an alternative supply for Drinking Water, using reverse osmosis to reduce the content of F−, SO42 − and TDS (Total Dissolved Solids). The desalinated Water obtained from reverse osmosis at a pressure of 2 MPa and a cross-flow velocity of 1.61 m.s− 1 showed rejections of approximately 94% for SO42 −, 97% for TDS and 100% for F−. Blended Water, Produced by mixing groundWater and permeate, was proposed to optimize the Produced Drinking Water with a recovery rate of 93%. Reverse osmosis is an excellent alternative for the supply of Water in southern Brazil.