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Desalination News international

Thermo- and light responsive microgels for efficient brackish and seawater forward osmosis desalination – Germany

Forward osmosis desalination presents a promising solution to address water shortages in areas near brackish or seawater sources. This study investigates the use of thermo-responsive poly(N-isopropyl acrylamide-rand‑sodium acrylate) microgels as innovative draw agents for forward osmosis desalination.

The drawing ability and responsiveness of these microgels are significantly influenced by the charged comonomer content. Unlike bulk hydrogels, these microgels, owing to their core-shell morphology, maintain thermo-responsivity even at higher comonomer content. Incorporating graphene oxide as a light absorber allows for partial heating, required to reach the transition temperature, to be obtained using UV light radiation. […]

Thermo- and light responsive microgels for efficient brackish and seawater forward osmosis desalination – Germany2024-12-05T17:20:53+01:00

The application of pressure-driven ceramic-based membrane for the treatment of saline wastewater and desalination–A review – China

Ceramic membranes are specifically defined as separation membranes made from metal oxides like ZrO2, TiO2, Al2O3, and SiO2, as well as materials such as SiC and C3N4. The main configurations of ceramic membranes are flat-sheet, single-tube, and multi-channel designs. Among these, tubular and multi-channel ceramic membranes, which offer higher surface area, mechanical strength, and efficiency, are steadily expanding their industrial applications.

(Source)

The application of pressure-driven ceramic-based membrane for the treatment of saline wastewater and desalination–A review – China2024-12-05T17:16:29+01:00

Desalination plant linked to dried wells – Philippines

WELLS in nearby villages have dried up allegedly due to the operation of a desalination plant that converts brackish water into potable water in Barangay Mambaling, Cebu City.

Ed Karlon Rama, Cebu City Bantay Dagat Commission executive director, said on Thursday, Nov. 28, 2024, that residents of Barangays Mambaling and Basak Pardo, through their respective barangay councils, reported to the Coastline Management Board (CMB) about cases of existing wells drying up.

During the executive session on Wednesday, Nov. 27, there was also a mention of water wells drying up in Barangay San […]

Desalination plant linked to dried wells – Philippines2024-12-04T16:37:42+01:00

Jordan turns to desalination to tackle water scarcity – Jordan

Regional instability is affecting Jordan’s ability to access much needed external water sources, forcing the kingdom to turn to desalination projects, the Minister of Water and Irrigation Muhammad Al-Najjar said yesterday.

He emphasised the need for collaborative efforts to devise solutions, implement joint Arab water initiatives, raise awareness about the importance of water conservation and promote effective governance.

As one of the world’s most water-scarce countries, Jordan is expediting a national project to desalinate water from the Red Sea to meet its growing water needs, improve irrigation efficiency, and enhance water awareness […]

Jordan turns to desalination to tackle water scarcity – Jordan2024-12-04T16:36:05+01:00

Samsung C&T bags US$2.8bn Qatar power and desalination plant project – South Korea

The contractor said it had received a letter of award for the Qatar Facility E Independent Water and Power Production Project last month.

The project involves the construction of the a 2,415MW power plant, combined with a 110 MGID (millions of gallons of water per day) desalination plant and is worth US$2.84 billion.

Samsung C&T was awarded the project after a consortium of Japanese and Korean power companies jointly won the rights to develop the facility for Qatar General Electricity and Water Corporation (Kahramaa).

Japan’s

Samsung C&T bags US$2.8bn Qatar power and desalination plant project – South Korea2024-12-04T16:34:10+01:00

Saudi Arabia revolutionises desalination efficiency and bolsters water sustainability by 80% – KSA

Text copieSaudi Arabia has made strides in water desalination, improving efficiency by 80 per cent and slashing costs by 50 per cent in recent years, according to Mansour bin Hilal Al-Mushaiti, the Kingdom’s Deputy Minister of Environment, Water, and Agriculture.

Daily desalination output has surged to 6 million cubic metres, contributing to a total capacity of 11.3 million cubic metres. This leap forward has been made possible by expanding water transmission networks, now spanning over 14,000 km, equivalent to double the length of the Nile River, overcoming challenging terrains to deliver water nationwide.

Saudi Arabia revolutionises desalination efficiency and bolsters water sustainability by 80% – KSA2024-12-02T11:01:50+01:00

Green light for South Australian desalination – Australia

The South Australian Government has approved plans to build a new desalination plant at Billy Lights Point on the Eyre Peninsula. 

The State Government said that Eyre Peninsula’s future water security is at serious risk with water levels running low in the region’s underground aquifers. 

There are approximately 35,000 SA Water customers on the Eyre Peninsula, with around 75 per cent of the region’s drinking water sourced from these groundwater basins. 

 Plans for the project were recommended for approval by the State Commission Assessment Panel and were subsequently approved […]

Green light for South Australian desalination – Australia2024-12-02T11:00:21+01:00

Facile constructing ZrO2 nanoparticles equipped with high conductivity carbon networks as pseudocapacitive anodes for removing phosphorus – China

Capacitive deionization (CDI) displays the merits of having eco-friendliness and low energy consumption when capturing phosphorus. However, traditional carbon electrodes often suffer from the limitation that phosphorus uptake sites are insufficient.

Herein, a novel ZrO2 nanoparticle equipped with a highly conductive carbon network (NZrC) was fabricated by a facile co-pyrolysis process. Na2EDTA can provide additional carbon backbones, N species, and metal chelation sites. Zr-MOF was applied as the ZrO2 precursor with abundant phosphorus trapping sites. The results suggested that Na2EDTA favors improving the ZrO2 dispersion, mesoporous channel formation, and pseudocapacitive behavior.

Facile constructing ZrO2 nanoparticles equipped with high conductivity carbon networks as pseudocapacitive anodes for removing phosphorus – China2024-12-02T10:59:05+01:00

Recovery of lithium carbonate crystals from a high salinity solution using membrane crystallizer with concentration and temperature gradients – Republic of Korea

Recovery of lithium carbonate crystals from a high salinity solution using membrane crystallizer with concentration and temperature gradients - Republic of Korea

Recovery of lithium carbonate crystals from a high salinity solution using membrane crystallizer with concentration and temperature gradients – Republic of Korea2024-11-30T12:39:40+01:00

Synthesizing high performance robust PSf loose nanofiltration membranes through nanobubble-assisted pore-forming – China

By leveraging nano-bubbles produced through the reaction between AC and NaOH without adding other pore-forming agents, the membrane-forming process of PSf was regulated.

It was found that the PSf LNF membranes prepared in NaOH-solution coagulation and immersion baths exhibited significantly enhanced permeation performance without compromising the rejection. These results suggested that the coagulation and immersion post-treatment processes under NaOH solution had a great effect upon the structure and the property of the membranes.

The LNF membrane prepared from 20 wt% PSf casting solution with 8 wt% AC achieved a permeation flux of 188.7 L m−2 h−1, […]

Synthesizing high performance robust PSf loose nanofiltration membranes through nanobubble-assisted pore-forming – China2024-11-30T12:38:57+01:00
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