Self-Organization Makes for Efficient Separation
Separation technology is at the heart of water purification, sewage treatment and reclaiming materials, as well as numerous basic industrial processes. Membranes are used to separate out the smallest, nanoscale particles and even molecules and metal ions. Prof. Boris Rybtchinski and his group of the Weizmann Institute of Science’s Organic Chemistry Department have developed a new type of membrane that could extend the life of a separation system, lower its cost and, in some cases, increase its efficiency as well.
The membranes he and his group have created may be produced in different ways, with different materials, and they come together in water and contain water as a major component (the membranes are akin to hydrogels). The first-generation membranes the group developed were made of unique molecules that organize themselves into the membrane material. This property also enables the membrane to be easily recycled and the particles trapped in the separation process to be reclaimed. The membranes can separate particles based on size, from one to several nanometers.
The second-generation membranes also contain a second self-assembled polymer layer, thus broadening the range of applications for this technology. These new membranes can sustain high pressures and are capable of purifying water from poisonous heavy metals and organic molecules, showing for the first time that self-assembled “aqua materials” can be used for demanding industrial application. Unlike conventional materials, the self-assembled membranes can be easily disassembled; this is critical for fighting membrane fouling, which is the biggest challenge in membrane applications. The membrane fabrication process is simple, and their performance is excellent, making the technology inherently worthwhile, even before the ability to recycle and reuse them is taken into consideration. The latter, of course, is of enormous importance, as it renders the membranes sustainable. Indeed, the goal of creating sustainable nanomaterials is at the core of the research performed by Rybtchinski and his group.
Learn more: Self-Organization Makes for Efficient Separation
The Latest on: Recyclable membrane filters
From Australia To California, Log Reduction Credits For MBR Systems
on July 10, 2018 at 10:59 am
Part of the rationale for this framework requiring direct integrity testing was the relative novelty of membrane treatment and the dearth of data to support indirect measures of pathogen removal such ... […]
Newater Technology Inc. Announces its 6th Anniversary Celebration
on July 9, 2018 at 8:41 pm
Mr. Li remarked "The goals and vision of Newater are consistent: we are committed to the high-quality recycling and re-use of renewable water resources. We are striving to be a leader in the membrane ... […]
Nano Sun Opens 3D Printing Facility to Manufacture New Water Treatment Membranes
on July 6, 2018 at 12:19 pm
While typical membrane-manufacturing processes rely on acid to make polymers more porous to act as filters, Nano Sun 3D prints ultra ... providing sustainable solutions such as wastewater recycling, w... […]
3D printers are now producing parts for water treatment plants
on July 6, 2018 at 2:45 am
A water technology startup in Singapore has built a 3D-printing facility for manufacturing membranes used in water filtration. Nanyang Technological University, Singapore (NTU Singapore) said in a sta... […]
NTU spin-off launches Singapore's first 3D-printing plant for water filtration membranes
on July 6, 2018 at 12:23 am
Unlike conventional membrane-manufacturing processes that use acids to make polymers porous that function as filters, Nano Sun 3D-prints millions ... providing sustainable solutions such as wastewater ... […]
via Google News and Bing News