WERBUNG

Die Herausforderung für sicheres Trinkwasser: Ein neuartiges, solarbetriebenes, kostengünstiges Wasserreinigungssystem

INGENIEURWISSENSCHAFTENDie Herausforderung für sicheres Trinkwasser: Ein neuartiges, solarbetriebenes, kostengünstiges Wasserreinigungssystem

Studie beschreibt ein neuartiges tragbares Solar-Dampf-Sammelsystem mit Polymer-Origami, das Wasser zu sehr geringen Kosten sammeln und reinigen kann

Die Nachfrage nach sauberen Wasser aufgrund von Bevölkerungswachstum, Industrialisierung und Verschmutzung und Erschöpfung der natürlichen Ressourcen unseres Planeten. Solar-Dämpfen ist eine Technik, bei der solar energy can be used to purify water by evaporating contaminated water, re condensing it and producing fresh clean water. This technique is a clean, renewable and sustainable green technology which has the potential to address global scarcity of clean water by utilizing the abundance of solar energy. The strength and efficiency of a solar-steaming system depends on its design and choice of photothermal materials. Current solar-steaming technologies use expensive, bulky materials and have low efficiency and limited output. It has remained a challenge to enhance performance and lower costs in order to design a light weight and portable solar-steaming system which can be directly used by individuals.

In einer neuen Studie veröffentlicht am 28. Mai in Fortgeschrittene Werkstoffe researchers describe a novel method for solar steaming by designing a low cost portable low-pressure controlled solar steaming collection system which can collect and purify water using energy from sunlight. They chose a photothermal polymer material called Polypyrrole (PPy) which is conductive in nature, is well-known for its photothermal properties and exhibits high efficiency in converting solar light into thermal heat. Inspired from the flower rose, the unique design of this solar steaming system is made of XNUMXD origami PPy-paper composites. A ‘PPy rose’ which constitutes of layered black sheets shaped as petals was created via origami folding and chemical polymerization of PPy. This origami structure is attached to a stem-like cotton infused tube which collects raw/untreated water from a water source and feeds it to the PPy rose structure placed on the top. Cotton infused tube and Polystyrene foam were used to prevent direct contact between PPy material and bulk water.

Once untreated water reached the petals, PPy material in the flower structure turns water into steam and impurities naturally separate from the water. Subsequently, the water vapor needs to be condensed and then clean water needs to collected for use. Researchers used a low-pressure condition by using a portable vacuum pump. This was seen to significantly enhance the rates of both water evaporation and water collection. Once water is condensed, the compact and sturdy collecting glass jar securely stores clean water.

The XNUMXD origamis provided significantly higher absorption of light and enhanced surface areas for water evaporation in comparison to a conventional XNUMXD planar design. The water evaporation and collection rate is enhanced by XNUMX percent due to lowering of chamber pressure. PPy origami improved water evaporation by XNUMX percent and higher steam collection rates were also seen. The overall efficiency of the system increased by XNUMX percent under one light source. The system was tested on a sample from Colorado river in Texas, USA. The system removed contamination of water in the form of heavy metals, bacteria, salt and alleviates alkalinity producing clean water of drinking standards as set by WHO.

The current study describes a novel rational design of a portable low-cost solar-steaming collection system with XNUMXD origami photothermal materials which offers improved rates of water evaporation and steam collection. The cost of each flower-like structure is less than XNUMX cents and it can successfully produce XNUMX liters of clean water per hour per square meter. This design can be an inspiration to fabricate unique models of solar-steaming for clean water production.

***

{Sie können das ursprüngliche Forschungspapier lesen, indem Sie auf den unten angegebenen DOI-Link in der Liste der zitierten Quellen klicken}

Quelle (n)

Li, W. et al. 2019. Tragbares Niederdruck-Solar-Steaming-Collection-Unisystem mit Polypyrrol-Origamis. Fortgeschrittene Werkstoffe. http://doi.org/10.1002/adma.201900720

SCIEU-Team
SCIEU-Teamhttps://www.ScientificEuropean.co.uk
Scientific European® | SCIEU.com | Bedeutende Fortschritte in der Wissenschaft. Auswirkungen auf die Menschheit. Inspirierende Köpfe.

ABONNIEREN SIE UNSEREN NEWSLETTER

Aktualisierung mit den neuesten Nachrichten, Angeboten und Sonderankündigungen.

- Werbung -

Beliebteste Artikel

Vitamin-D-Mangel (VDI) führt zu schweren COVID-19-Symptomen

Der leicht korrigierbare Zustand der Vitamin-D-Insuffizienz (VDI) hat...

Homöopathie: Alle zweifelhaften Behauptungen müssen zur Ruhe gebracht werden

Es ist jetzt eine universelle Stimme, die die Homöopathie...

Aviptadil könnte die Sterblichkeit bei schwerkranken COVID-Patienten senken

Im Juni 2020 wurde der RECOVERY-Versuch einer Gruppe von ...
- Werbung -
99,767FansLike
69,705VerfolgerFolgen
6,319VerfolgerFolgen
31AbonnentenAbonnieren