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Desalination News international

Alarming Water Levels at Lake Kournas – Greece

A striking example of the crisis is Lake Kournas near Georgioupoli in Chania, where water levels have dropped significantly to 2.2 metres from a maximum average of 7.5 metres. Aris Papadogiannis, CEO of the Development Organisation of Crete, expressed concern in an interview with ERT Chania. He remarked, “Lake Kournas has never been in such a state. This recurring hydrological deficiency over two years has drastically affected the local flora and fauna.”

(Source)

Alarming Water Levels at Lake Kournas – Greece2024-11-21T14:14:49+01:00

Electrodialysis (ED) offers an alternative ion-removal method – India

The study showed that the SF-EDM process achieved a remarkable salinity reduction of over 90%, reaching 93% in the experimental trials. This efficiency was coupled with a total system water recovery rate of 90%, combining reverse osmosis and SF-EDM processes. The specific energy consumption ranged from 1 to 7 kWh/m³, indicating a favorable energy profile compared to traditional desalination methods.

A key finding was this method’s ability to selectively separate ions. It effectively distinguishes between monovalent and divalent ions, allowing sulfate and calcium to be separated into distinct concentrate streams. This selectivity is particularly important […]

Electrodialysis (ED) offers an alternative ion-removal method – India2024-11-21T14:10:05+01:00

Desalination has a more negative reputation than other industries – Chile

The first reputational analysis of the water industry and desalination technology in Chile was presented at the International Congress of the Latin American Association for Desalination and Water Reuse (Aladyr) 2024, highlighting that desalination technology has average visibility and favorability, but with predominantly negative feelings and high levels of aggressiveness.

At the most important event in the desalination and water reuse industry in Latin America, an analysis was presented on the reputation of this activity in comparison with sectors such as energy, mining, agriculture, forestry and fishing.

The […]

Desalination has a more negative reputation than other industries – Chile2024-11-16T12:27:48+01:00

ACWA Power reports 16% profit increase amid 26 ongoing projects – KSA

Saudi-listed ACWA Power, the world’s largest private water desalination company, and a leader in energy transition and first mover into green hydrogen, today announced its consolidated financial results for the nine months ended 30 September 2024.

Operating income before impairment losses and other expenses reached SAR 2,365 million, 12.5% higher compared to the same period in 2023 mainly on account of an investment gain in restructuring of a project, along with a capital recycling gain. The Company’s net profit—attributable to equity holders of the parent—reached SAR 1,255 million for the period, 16% higher compared to […]

ACWA Power reports 16% profit increase amid 26 ongoing projects – KSA2024-11-16T12:25:18+01:00

Transforming Water Scarcity into Abundance: ATESS Energy Storage and Solar-Powered Desalination in Saudi Arabia – KSA

Saudi Arabia faces a severe water scarcity crisis. The country’s annual water consumption reaches 30 billion cubic meters, while it produces only about 2 billion cubic meters of surface water each year. As a result, seawater desalination has become essential for supplying water, especially in urban and industrial areas. Yet, this solution is energy-intensive and largely powered by fossil fuels, which adds both economic and environmental costs. To address these challenges, ATESS has introduced an innovative solar-powered energy storage solution designed to make desalination more sustainable and accessible.

(Source)

Transforming Water Scarcity into Abundance: ATESS Energy Storage and Solar-Powered Desalination in Saudi Arabia – KSA2024-11-13T18:41:17+01:00

Egypt to roll out tender for desalination mega-project – Egypt

Egypt is advancing a major desalination initiative under a Public-Private Partnership (PPP) framework, with initial tenders expected in late 2024.

The project, managed by The Sovereign Fund of Egypt (TSFE) alongside the Ministry of Finance’s PPP Central Unit, seeks to establish renewable energy-powered desalination plants across Egypt to reach a production capacity of 8.85 million cubic meters per day (m³/day) by 2050. This aligns with Egypt’s national water security strategy and environmental sustainability objectives.

(Source)

Egypt to roll out tender for desalination mega-project – Egypt2024-11-13T18:41:32+01:00

Three locations still being studied for future Costa del Sol desalination plant as draft plan deadline slips – Spain

The future desalination plant in the Axarquía area to the east of Malaga province is still in the hands of bureaucratic procedures which continue to delay the project, for which 100 million euros have been budgeted by Spain’s central government. After it was announced last June that the project could be drafted by the end of the year, this deadline has now been extended by a few more months, until spring 2025.

(Source)

Three locations still being studied for future Costa del Sol desalination plant as draft plan deadline slips – Spain2024-11-13T18:41:46+01:00

A general modeling framework for FO spiral-wound membrane and its fouling impact on FO-RO desalination system (Malaysia)

A comprehensive modeling framework for fouling in forward osmosis (FO) spiral-wound membrane (SWM) modules has been developed, addressing the challenges of time-dependent fouling and complex flow patterns induced by baffles, with validation against experimental data showing a maximum error of 13.1% in FO permeate flux.

The validated model reveals that while improved operating conditions and membrane parameters initially enhance water flux, these gains are significantly offset by accelerated fouling, resulting in minimal performance improvements (<1%) under severe fouling conditions.

This study demonstrates that for foulant cakes with pore diameters larger […]

A general modeling framework for FO spiral-wound membrane and its fouling impact on FO-RO desalination system (Malaysia)2024-11-09T09:34:10+01:00

Structure-function relationship for functional films with constructed graded channels in dye/salt separation and fouling resistance (China)

A novel composite film, constructed through polypyrrole particle stacking and polydopamine space-filling, demonstrates exceptional performance in dye/salt separation with high water flux (>600 L m⁻² h⁻¹ bar⁻¹) and near-perfect dye rejection (~100%).

The film’s unique patterned surface structure, created by microsphere arrangement and inter-structure adaptation assembly, provides excellent contamination tolerance and rinsing regeneration capabilities, while computational fluid dynamics simulations reveal that high shear stress and vortex flow in interstitial spaces reduce contaminant deposition.

This innovative composite film, exhibiting good structural stability and mechanical strength in complex water environments, unveils crucial […]

Structure-function relationship for functional films with constructed graded channels in dye/salt separation and fouling resistance (China)2024-11-09T09:30:55+01:00

Fabrication of green xylose-based nanofiltration membrane with enhanced performance and chlorine resistance (China)

Nanofiltration technology is essential for drinking water purification, yet oxidizing agents in pretreatment can degrade membrane performance.

This study introduces a polyester nanofiltration membrane using xylose, providing a hydrophilic, thin separation layer with high permeance (28.7 L·m²·h⁻¹·bar⁻¹) and strong Na₂SO₄ rejection (95.4%).

With robust chlorine resistance and stability across pH levels, this green monomer-based membrane offers an effective, sustainable approach to enhancing nanofiltration durability and efficiency.

(Source)

Fabrication of green xylose-based nanofiltration membrane with enhanced performance and chlorine resistance (China)2024-11-05T08:54:56+01:00
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