Water Distillation Articles

  • Ten quotes from our customers about VACUDEST

    Many companies have opted to introduce a policy of zero liquid discharge production using our high-quality VACUDEST vacuum distillation systems. Users can reduce their consumption of fresh water – an increasingly dwindling resource – and significantly reduce their disposal costs by recycling their industrial wastewater. Read on to find out what our customers say about VACUDEST: Ovidio ...


    By H2O GmbH

  • Another MRO company goes wastewater-free!

    Jet Aviation in Basel, Switzerland, is using a VACUDEST vacuum distillation system to efficiently and sustainably treat wastewater left over from refurbishing aircraft parts. This state-of-the-art system replaced outdated chemical/physical treatment at the company. Jet Aviation is particularly pleased with the high quality of the treated water, which can even be reused in maintenance processes. ...


    By H2O GmbH

  • Adsorption of reactive dye from aqueous solution and synthetic dye bath wastewater by Eucalyptus bark/magnetite composite

    In the present study, Eucalyptus camaldulensis bark/magnetite composite (EBMC) was used for a potential application as a low-cost adsorbent for the removal of Reactive Black 5 (RB5). The adsorption experiments were performed with aqueous solution (RB5 + distilled water) and synthetic dye bath wastewater (SDBW) in order to investigate the potential application of EBMC in the textile industry. ...


    By IWA Publishing

  • Case study - Helicopter Wing Karup (Karup Airbase)

    COST EFFECTIVE AND ENVIRONMENTALLY CORRECT HANDLING OF WASTEWATER CONTAINING HEAVY METALS Client: The Danish Airforce helicopter group Helicopter Wings Karup, with homebase at the Karup Airfield. Helicopter Wing Karup was challenged with their wastewater from washing the helicopters. The content of heavy metals exceeded the limits for the direct disposal into ...


    By Envotherm A/S

  • Thermodynamic modelling of a membrane distillation crystallisation process for the treatment of mining wastewater

    Membrane distillation (MD) could be applicable in zero liquid discharge applications. This is due to the fact that MD is applicable at high salinity ranges which are generally outside the scope of reverse osmosis (RO) applications, although this requires proper management of precipitating salts to avoid membrane fouling. One way of managing these salts is with MD crystallisation (MDC). This ...


    By IWA Publishing

  • Fouling and long-term durability of an integrated forward osmosis and membrane distillation system

    An integrated forward osmosis (FO) and membrane distillation (MD) system has great potential for sustainable wastewater reuse. However, the fouling and long-term durability of the system remains largely unknown. This study investigates the fouling behaviour and efficiency of cleaning procedures of FO and MD membranes used for treating domestic wastewater. Results showed that a significant ...


    By IWA Publishing

  • Recovery of salts from ion-exchange regeneration streams by a coupled nanofiltration–membrane distillation process

    Ion-exchange tap water demineralization for process water preparation results in a saline regeneration wastewater (20–100 mS cm−1) that is increasingly problematic in view of discharge. A coupled nanofiltration–membrane distillation (NF-MD) process is evaluated for the recovery of water and sodium chloride from this wastewater. NF-MD treatment of mixed regeneration ...


    By IWA Publishing

  • Energy evaluation and treatment efficiency of vacuum membrane distillation for brackish water desalination

    Strict environmental regulations have led to the rapid development of membrane separation technologies for the production of potable water, for industrial water supply, and for the reuse and discharge of treated wastewater. Promotion of water recycling and the provision of potable water from brackish water prevent significant negative effects on the environment and drinking water supplies. This ...


    By IWA Publishing

  • The Mechanical Vapor Compression: 38 Years of experience

    Abstract The Mechanical Vapor Compression (MVC) is among the most efficient distillation processes. It achieves its high efficiency in a simple manner, producing a high quality distillate. Since 1969 with the installation of IDE's first commercial MVC plant, circa of 260 units have been installed world-wide in single and multieffect configuration. In Spain alone, over 70 units have been ...


    By IDE Technologies

  • Review of med fundamentals and costing

    Introduction Low Temperature Multi Effect Distillation (LT-MED) is one of the most efficient thermal desalination processes currently in use. It incorporates technological advances which have resulted in reliable, durable and economical desalination plants producing high purity product water. These advances are as follows: Development of a unique design of a falling ...


    By IDE Technologies

  • Recycling of coal seam gas-associated water using vacuum membrane distillation

    Coal seam gas-associated water (CSGAW), which is a by-product of coal seam gas (CSG) production typically contains significant amounts of salts and has potential environmental issues. In this study, we optimized a bench-scale vacuum membrane distillation (VMD) process with flat-sheet hydrophobic polytetrafluoroethylene (PTFE) membranes for the treatment of synthetic CSGAW (conductivity = 15 ...


    By IWA Publishing

  • Brackish water treatment for reuse using vacuum membrane distillation process

    The availability of fresh water is vital for all human activities and in particular for improving living conditions, health and overall well-being. Pressure on scarce fresh water resources can be reduced by treating and reusing brackish water by advanced membrane treatment technologies. In this study, brackish water originating from effluent discharge of a local coal mine, seawater, groundwater ...


    By IWA Publishing

  • Case-study - Utilising waste heat for water production and climate control

    Water purification is needed to produce high quality water for consumption, agriculture and industrial needs. Conventional water treatment processes, like distillation and reverse osmosis, consume vast amounts of energy. However, there is a large potential for significant reductions in energy consumption and CO2 emissions in this sector. It can be achieved by the exploitation of waste heat for ...


    By Climate-KIC

  • KSB - H2O collaboration project: Reduce costs and improve quality of industrial wastewater treatment

    A Clearcat evaporator at KSB in La Roche Chalais (France) for the treatment of industrial wastewater on site. The KSB factory at La Roche Chalais (24), a subsidiary of Germany's KSB AG, manufactures AMRI brand butterfly valves. These valves are used in the construction, industrial, water, and electric power generation sectors. The production of these valves generates two main liquid wastes: ...


    By H2O GmbH

  • On the thermo–economic optimisation of multistage flash evaporation desalination plants

    A thermo–economic optimisation analysis is presented yielding simple algebraic formulae for estimating the optimum number of desalination stages, condensing unit and brine heater size with operating temperatures for distilled water production. The P1–P2 method is used in the present study, together with the thermo–economic analyses of desalination equipments.Keywords: thermoeconomics, ...


    By Inderscience Publishers

  • Carbon credits earned from a double slope active solar still under forced circulation mode

    Human life on land is vitally dependent on fresh water along with food and air. Many areas in the world do not have access to fresh water. Growing demands of freshwater resources are creating an urgent need to develop self sustained system to meet the demand. At present, many distillation methods are available like reverse osmosis, thin film distillation multi-effect fresh evaporation but they ...


    By Inderscience Publishers

  • Hydrotreater proven at small scale and expanded skillfully case study

    Bango Refining, USA, was using fixed-bed clay process for upgrading distillates recovered from used oil. The product had poor color, poor oxidation stability and there was no control over reduction of sulfur in the final products. From March 2009, with the Sequoia-supplied hydrotreater, Bango Oil started making Group 2+ base oil product that is ‘water white’. In 2012, the small ...


    By Sequoia Global, Inc.

  • Multiple floating porous absorbers type solar still: annual performance evaluation

    This paper describes an experimental work conducted in order to evaluate the annual performance of a modified single sloped basin type solar still. The modified still consists of a multiple number of blackened porous jute cloth absorbers, which are being floated on the basin water with the help of thermo–col insulations. Higher absorber surface temperatures are rapidly reached in this design, ...


    By Inderscience Publishers

  • Water reclamation from shale gas drilling flow-back fluid using a novel forward osmosis–vacuum membrane distillation hybrid system

    This study examined the performance of a novel hybrid system of forward osmosis (FO) combined with vacuum membrane distillation (VMD) for reclaiming water from shale gas drilling flow-back fluid (SGDF). In the hybrid FO-VMD system, water permeated through the FO membrane into a draw solution reservoir, and the VMD process was used for draw solute recovery and clean water production. Using a SGDF ...


    By IWA Publishing

  • Recovery of water and acid from leach solutions using direct contact membrane distillation

    This paper describes for the first time the use of direct contact membrane distillation (DCMD) for acid and water recovery from a real leach solution generated by a hydrometallurgical plant. The leach solutions considered contained H2SO4 or HCl. In all tests the temperature of the feed solution was kept at 60 °C. The test work showed that fluxes were within the range of ...


    By IWA Publishing

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