Nanotechnology in Wastewater Management: A New Paradigm Towards Wastewater Treatment.
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TLDR
The techniques being developed for wastewater treatment using nanotechnology based on adsorption and biosorption, nanofiltration, photocatalysis, disinfection and sensing technology are reviewed and the fate of the nanomaterials in wastewater treatment is highlighted.Abstract:
Clean and safe water is a fundamental human need for multi-faceted development of society and a thriving economy. Brisk rises in populations, expanding industrialization, urbanization and extensive agriculture practices have resulted in the generation of wastewater which have not only made the water dirty or polluted, but also deadly. Millions of people die every year due to diseases communicated through consumption of water contaminated by deleterious pathogens. Although various methods for wastewater treatment have been explored in the last few decades but their use is restrained by many limitations including use of chemicals, formation of disinfection by-products (DBPs), time consumption and expensiveness. Nanotechnology, manipulation of matter at a molecular or an atomic level to craft new structures, devices and systems having superior electronic, optical, magnetic, conductive and mechanical properties, is emerging as a promising technology, which has demonstrated remarkable feats in various fields including wastewater treatment. Nanomaterials encompass a high surface to volume ratio, a high sensitivity and reactivity, a high adsorption capacity, and ease of functionalization which makes them suitable for application in wastewater treatment. In this article we have reviewed the techniques being developed for wastewater treatment using nanotechnology based on adsorption and biosorption, nanofiltration, photocatalysis, disinfection and sensing technology. Furthermore, this review also highlights the fate of the nanomaterials in wastewater treatment as well as risks associated with their use.read more
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References
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Journal ArticleDOI
Nanoparticles: Properties, applications and toxicities
TL;DR: A detailed overview of the synthesis, properties and applications of nanoparticles exist in different forms NPs are tiny materials having size ranges from 1 to 100nm They can be classified into different classes based on their properties, shapes or sizes.
Journal ArticleDOI
Unimpeded permeation of water through helium-leak-tight graphene-based membranes.
TL;DR: Submicrometer-thick membranes made from graphene oxide can be completely impermeable to liquids, vapors, and gases, including helium, but these membranes allow unimpeded permeation of water (H2O permeates through the membranes at least 1010 times faster than He).
Journal ArticleDOI
Heterogeneous photocatalysis: fundamentals and applications to the removal of various types of aqueous pollutants
TL;DR: In this article, the basic fundamental principles are described as well as the influence of the main parameters governing the kinetics (mass of catalyst, wavelength, initial concentration, temperature and radiant flux).
Journal ArticleDOI
Antimicrobial nanomaterials for water disinfection and microbial control: Potential applications and implications
Qilin Li,Shaily Mahendra,Delina Y. Lyon,Lena Brunet,Michael V. Liga,Dong Li,Pedro J. J. Alvarez +6 more
TL;DR: The antimicrobial mechanisms of several nanoparticles are reviewed, their merits, limitations and applicability for water disinfection and biofouling control are discussed, and research needs to utilize novel nanomaterials for water treatment applications are highlighted.
Journal ArticleDOI
ZnO - nanostructures, defects, and devices
TL;DR: ZnO has received much attention over the past few years because it has a wide range of properties that depend on doping, including a range of conductivity from metallic to insulating (including n-type and p-type conductivity), high transparency, piezoelectricity, widebandgap semiconductivity, room-temperature ferromagnetism, and huge magneto-optic and chemical-sensing effects.