News

Pumpen zur Meerwasserentsalzung

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Hier stehen Verfahren zur Verfügung – insbesondere die Umkehrosmose –, die als kontinuierliches Verfahren in großindustriellem Maßstab nutzbar sind. Zu den Kernkomponenten derartiger Anlagen gehören Hochdruckpumpen. Ihre Aufgabe ist es, die Membranen der Osmoseanlagen mit hoch korrosivem Salzwasser zu beschicken. Die Trägerflüssigkeit passiert die Membran, während die Feststoffanteile zurückgehalten und abgeschieden werden.
Als Hersteller von Hochdruckpumpen für anspruchsvolle Aufgaben und korrosive beziehungsweise abrasive Medien hat sich…

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Pumpen zur MeerwasserentsalzungDME GmbH2017-07-18T13:55:52+02:00

Spanish engineering company “Typsa” will manage in consortium with another two companies the construction of six desalination plants in the Tunisian Sahara

Technical assistance for 6 desalination plants in Tunisia (31,000 m³/day – 550,000 inhabitants) Client: #SONEDE, with funding from @KfW

 

 

Spanish engineering company “Typsa” will manage in consortium with another two companies the construction of six desalination plants in the Tunisian SaharaDME GmbH2017-07-18T13:55:51+02:00

Muscat City Desalination plans public offering in third quarter

Muscat City Desalination Company plans to float an Initial Public Offering (IPO) on the Muscat Securities Market (MSM) in the third quarter of this year.

Muscat City Desalination Company (MCDC), which owns and operates the 42 million imperial gallons per day (MIGD) capacity Al Ghubra independent water project, has to divest a stake in the favour of the investing public as per an agreement with the Oman government.

The company, according to highly placed sources at the Capital Market Authority, has sought approval for floating shares on MSM.

MCDC, which started operation in February 2016, was jointly promoted by […]

Muscat City Desalination plans public offering in third quarterDME GmbH2017-07-18T13:55:46+02:00

Characterisation and comparison of bacterial communities on reverse osmosis membranes of a full-scale desalination plant by bacterial 16S rRNA gene metabarcoding

PERTH, Australia – A benchmarking study has been carried out on the bacterial build up on reverse osmosis membranes at a full-scale desalination plant which could help prevent biofouling in future operations.

Murdoch University PhD student Veena Nagaraj examined the bacteria living on the membranes on 14 reverse osmosis units in the Perth seawater desalination plant in Rockingham after seven years of operation.

She then compared them to the unused units waiting in the plant for installation.

Before reaching the reverse osmosis membranes, the water has already gone through sand filtration, micro-filtration and chemical treatment to try to remove […]

Characterisation and comparison of bacterial communities on reverse osmosis membranes of a full-scale desalination plant by bacterial 16S rRNA gene metabarcodingDME GmbH2017-07-18T13:55:43+02:00

mayor of Brockton pursues a plan to buy the Aquaria desalination plant for $78 million, other elected officials representing the city are exploring another way to meet the community’s supplementary water needs

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“It’s just a better business decision,” Carpenter said. “It’s now or never on Aquaria. … What we’re proposing is 0 percent uncertainty, and 100 percent equity.”

Farwell, however, said there is some uncertainty with the Aquaria option as well. He pointed to electricity costs as an example, referring to an analysis completed last year by the city-contracted firm CDM Smith. Although Brockton would be immune from three years from electricity rate increases, after that an increase of just $0.01 in the electricity rate would spike the operating costs of the Aquaria plant by $50,000, the CDM Smith report […]

mayor of Brockton pursues a plan to buy the Aquaria desalination plant for $78 million, other elected officials representing the city are exploring another way to meet the community’s supplementary water needsDME GmbH2017-07-18T13:55:40+02:00

Motion of the Ocean Generates Fresh Water (RO)

Sandia Labs’ findings have helped Atmocean attract about $3.5 million in investment to continue product testing, add staff and boost component manufacturing at Reytek. The company built full-size seawater pumps and tested the system off the coast of Oregon in 2011 and off Peru for six months in 2015. “The first Peru tests were a big success,” Kithil said. “Other small communities want to see if it will work for them.”

Atmocean is working now with Sandia Labs engineer Tim Koehler on computational modeling of the wave energy system. Following trials in a test tank at the Texas A&M […]

Motion of the Ocean Generates Fresh Water (RO)DME GmbH2017-07-18T13:55:37+02:00

Water exists as two different liquids

Water exists in high- and low-density amorphous ice forms (HDA and LDA), which could correspond to the glassy states of high- (HDL) and low-density liquid (LDL) in the metastable part of the phase diagram. However, the nature of both the glass transition and the high-to-low-density transition are debated and new experimental evidence is needed. Here we combine wide-angle X-ray scattering (WAXS) with X-ray photon-correlation spectroscopy (XPCS) in the small-angle X-ray scattering (SAXS) geometry to probe both the structural and dynamical properties during the high-to-low-density transition in amorphous ice at 1 bar. By analyzing the structure factor and the radial […]

Water exists as two different liquidsDME GmbH2017-07-18T13:55:34+02:00

In California the drought is over, so now what is the plan for local water agencies?

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As the worst drought in California’s recorded history fades from memory, and mandatory water conservation cutbacks become a thing of the past, California water agencies are left to grapple with the question: What do they do now?

About 80 representatives of Inland Empire water agencies gathered at a symposium at the Chino Basin Water Conservation District (Chino Basin) headquarters in Montclair on June 29 to discuss that and many other topics, ranging from climate change to wastewater recycling to desalination. Not least among the topics was rates, and how to pay for new technologies to ensure a safe, […]

In California the drought is over, so now what is the plan for local water agencies?DME GmbH2017-07-07T13:11:17+02:00

New drinking water systems in Myanmar

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The companies will embark on the so-called EPC business, which designs plants, procures materials and builds under a contract. Wellthy has an advantage of being able to freely adjust treatment processes and devices that will be incorporated into a system according to the quality of drinking water and water sources.

Myanmar is the third country for the Wellthy’s overseas water treatment-related business, followed by Kenya and Vietnam.

In Myanmar, the companies will use the Yangon River which runs near the city as the water source. The river water will be filtered through hollow fiber membranes for purification and […]

New drinking water systems in MyanmarDME GmbH2017-07-07T11:18:58+02:00

A new study by a Murdoch researcher may help keep desalination plants flowing

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first benchmarking study of the bacterial build up on the filtration membranes of a full-scale desalination plant.

This problem, known as biofouling, is estimated to cost the worldwide industry US$15 billion each year.

Ms Veena examined the bacteria living on the membranes on 14 reverse osmosis units in the Perth seawater Desalination Plant in Rockingham after seven years of operation and compared them to the unused units waiting in the plant for installation.

This was the first ever study to examine the bacterial communities present on the unused membranes. The study has been published in npj Biofilms and […]

A new study by a Murdoch researcher may help keep desalination plants flowingDME GmbH2017-07-07T10:58:27+02:00