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Water treatment using Nanotechnology
Transcript of Water treatment using Nanotechnology
Commercialization and cost effectiveness.
-Potential risks (the environment
Nanotechnology in water purification
Solve current water problems
Enhance water quality
Reduce using traditional disinfectants chemicals
Mays A. Shadeed
Dr.Nehal Abu Lail
May, 28th, 2014
- Major applications of Nanotechnology in water treatment.
-More details about nano-enhanced membranes.
- Challenges facing nanoenhanced WT technologies.
Nanotechnology in Water Treatment
Disinfection and microbial control
Sensing and monitoring
Thin film Nanocomposite
Biological inspired membrane
-To remove the organic and inorganic material
- Very high surface area.
- can be functionlized easily.
-The ability to regeneration for several times.
- ZnO, MgO, Ce2O4.
The stability the nanomaterials.
-Compatibility with the current
Thank you for listening and attention.
Membranes offer a leapfrogging opportunity in the removal of a very wide range of contaminants from water such as: minerals, particulates, microorganisms, and natural organic material.
The effectiveness of the membranes are usually characterized by the
by the membrane.
-Modifying existence membranes:
Thin film coating membrane.
- Creating new membrane materials:
Nanohollow fiber membranes.
Biological inspired membrane.
-They have a high porosity.
-Huge surface area to volume ratio.
-Easy to be functionlized.
Why are we interested in nanofiber?
-TiO2, Zeolite and AL2O3
The Water Demand
A definitive solution for the water treatment problems
Development of handheld devices.
Nano-enhanced Technologies the Newest Trend in the Water Treatment World
They are used in pathogens detection by using bioconjugated nanomaterials.
show spectacular result when used in the trace element sensor production.
Thin Film Composite
The greatest breakthrough was achieved by Cattode.
- A very thin layer of aromatic-polyamide was suggested to create directly on the surface of polysulfone layer
Nanophotocatalysits are used for hazardous and nondegaradble substances removal from water.
Disinfection is an urgent step to kill all pathogenic microorganisms exist in water.
Many disinfectants are commonly used such as: chlorine, ozone, etc.
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, Nanotechnology and the Poor: Opportunities and Risks for Developing Countries, Nanotechnology & Society, 2, 2011, pp 277-290.
H. T. Madsen
, Membrane Filtration in Water Treatment – Removal of Micropollutants,Chemistry of Advanced Environmental Purification Processes of Water, 2014, pp 199-248.
J.E. Cadotte, R.J. Petersen, R.E. Larson, E.E. Erickson
, A new thin-film composite seawater reverse osmosis membrane, Desalination, 32, 1980, pp 25–31.
K. P. Lee, T. C. Arnot, D. Mattia
, A review of reverse osmosis membrane materials for desalination—Development to date and future potential Review Article, Journal of Membrane Science, 370(1-2), 15 March 2011, pp 1-22.
Improving the water quality monitoring