Wastewater Evaporation 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 This state-of-the-art system replaced outdated chemical/physical treatment at the company.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

  • Antibiotic Production Wastewater Zero Liquid Discharge Of Disc Tube SUPER RO

    Project address: Inner Mongolia in China Inflow:6300 ton per day(the largest antibiotic wastewater zero discharge project in Asia) Acceptance time:1,2015 Process: UF+RO+SUPER RO+ ...

  • 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 - Dansk Dekommisionering

    Cost effective and environmentally correct handling of radioactive wastewater Client: Dansk Dekommissionering, formerly known as Forskningscenter Risø. The Institution Dansk Dekommissionering was established in September 2003 with the purpose of taking over the responsibility for the nuclear facilities at the Risoe Research Centre. ...


    By Envotherm A/S

  • Improving vacuum-UV (VUV) photolysis of organic compounds in water with a phosphor converted xenon excimer lamp emitting at 193 nm

    A novel vacuum ultraviolet excimer lamp emitting light at 193 nm was used to investigate the degradation of organic micropollutants in ultrapure water and wastewater treatment plant (WWTP) effluent. Overall, light at 193 nm proved to be efficient to degrade the investigated micropollutants (diclofenac, diatrizoic acid, sulfamethoxazole). Experiments with WWTP effluent proved the ability of ...


    By IWA Publishing

  • Perfected, stable and elegant: Our VACUDEST

    Interview with Daniel Ladenberger, Head of Engineering. Mr Ladenberger, you are highly valued at H2O not only as an experienced technical director, but also as a walking encyclopaedia of sorts. How long have you been with H2O? I’ve been with H2O since the very beginning. I worked at Mannesmann Demag Wittig for two years before Matthias Fickenscher and ...


    By H2O GmbH

  • ESA Entsorgungsservice relies on advanced evaporator technology

    ESA Entsorgungsservice GmbH & Co. KG was founded in 1998 and specialises in the treatment of oily waste. Five years ago, owner Frank Ackermann moved the company to Nattheim, Germany, and invested in a state-of-the-art environmentally-friendly treatment system. He speaks about his experience in this interview. Mr Ackermann, what were the reasons behind your move? ...


    By H2O GmbH

  • A New Day Dawns

    As demand for water increases nationwide and around the globe, tougher restrictions have been placed on several industries to incentivize reuse and repurposing and discourage contaminant discharge. Across the country, regional power companies are turning to outside experts for solutions that meet their competing needs of being environmentally friendly and economically feasible. For example, GE ...


    By Modern Pumping Today

  • Optimization of permeate flux produced by solar energy driven membrane distillation process using central composite design approach

    Membrane distillation (MD) is considered as a relatively high-energy requirement. To overcome this drawback, it is recommended to couple the MD process with solar energy as the renewable energy source in order to provide heat energy required to optimize its performance to produce permeate flux. In the present work, an original solar energy driven direct contact membrane distillation (DCMD) ...


    By IWA Publishing

  • Seawater desalination with solar-energy-integrated vacuum membrane distillation system

    This study designed and tested a novel type of solar-energy-integrated vacuum membrane distillation (VMD) system for seawater desalination under actual environmental conditions in Wuhan, China. The system consists of eight parts: a seawater tank, solar collector, solar cooker, inclined VMD evaporator, circulating water vacuum pump, heat exchanger, fresh water tank, and brine tank. Natural ...


    By IWA Publishing

  • Experimental study of multi-effect membrane distillation (MEMD) for treatment of water containing inorganic salts

    A novel multi-effect membrane distillation (MEMD) process has been implemented to treat water containing four different inorganic solutes. The 4-stage MEMD module was developed based on the air-gap configuration. The influence of operating parameters like concentration, feed temperature, flow rate and operating time on permeate fluxes of zinc sulfate, sodium fluoride, magnesium chloride and ...


    By IWA Publishing

  • The role of soil moisture accounting in estimation of soil evaporation and transpiration

    In this study, we explore how the differences in soil moisture accounting affect the estimation of actual soil evaporation (E) and transpiration (T). The main objective is, therefore, a comparative assessment of a vapor flux estimation method which has explicit soil moisture accounting, against a vapor flux estimation method that uses satellite observed soil moisture data. ...


    By IWA Publishing

  • 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

  • Questions and answers about damaging oilfield wastewater

    As U.S. oil and gas production increased this past decade, so, too, did spills of salty oilfield wastewater that can foul the land, kill wildlife and threaten freshwater supplies. An Associated Press analysis of 11 states found more than 175 million gallons of wastewater spilled from 2009 to 2014. Questions and answers about this damaging byproduct of energy production: WHAT IS IT? ...


    By Associated Press

  • Questions and answers about damaging oilfield wastewater

    As U.S. oil and gas production increased this past decade, so, too, did spills of salty oilfield wastewater that can foul the land, kill wildlife and threaten freshwater supplies. An Associated Press analysis of 11 states found more than 180 million gallons of wastewater spilled from 2009 to 2014. Questions and answers about this damaging byproduct of energy production: WHAT IS IT? ...


    By Associated Press

  • 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

  • Contrasting suspended covers reveal the impact of an artificial monolayer on heat transfer processes at the interfacial boundary layer

    The highly variable performance of artificial monolayers in reducing evaporation from water storages has been attributed to wind speed and wave turbulence. Other factors operating at the interfacial boundary layer have seldom been considered. In this paper, two physical shade covers differing in porosity and reflectivity were suspended over 10 m diameter water tanks to attenuate wind and wave ...


    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

  • Biodegradation of artificial monolayers applied to water storages to reduce evaporative loss

    Repeat applications of an artificial monolayer to the interfacial boundary layer of large agricultural water storages during periods of high evaporative demand remains the most commercially feasible water conservation strategy. However, the interfacial boundary layer (or microlayer) is ecologically distinct from subsurface water, and repeat monolayer applications may adversely affect ...


    By IWA Publishing

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