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Water Filtration


Amanda Pina

on 29 July 2013

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Transcript of Water Filtration

Water Filtration
An essential element to life
Solution: Water Filtration
Types of Water Solutions
Our Solution
Combining cloth carbon nanotubes with affordable water filters
The Water Struggle
Two Hydrogen atoms and an Oxygen atom
Covers over 70% of the world's surface.
Tasteless and odorless when pure
Advancements in Nanotechnology
Reverse Osmosis
Moringa Seeds
Granular Activated Carbon
In Situ Chemical Oxidation
Moringa trees are native in North India, Sub-Sahara Desert, Indonesia
Can be crushed into a powder that purifies water
Powder gathers the solids in water then they both sink
Clean water can be poured into another container
Removes about 90-99% of bacteria
Moringa Seeds
Silver nanoparticles can be added to the process to better the rid some bacterias and toxins
Made from raw organic materials high in carbon
Using thermal energy to make the surface area of the carbon become activated
So this activated carbon filters out some chemicals as the water goes through the GAC filter
Does not remove all chemicals. Ex. iron
User needs to know beforehand the amount of water going to be used and contaminants
Requires a fair amount of monitoring
Coconut Shells
A New and Affordable Water Filtration System
Developed at the Indian Institute of Technology Madras
$16 nanoparticle water filtration system
Provides 2.6 gallons of clean and safe drinking water a day
Requires no electricity because the filters are made at room temperature
It is a room-temperature green synthesis
First to remove chemical contaminants
Releases silver ions that destroy microbes
Can be customized to rid water of microbial contaminants, chemical contaminants, or both
The membrane filter kills bacteria and viruses, and the axial block can be custom fitted to remove lead and arsenic
Chitosan fibers combine with aluminum hydroxide nanoparticles to protect embedded silver nanoparticles from deposits that would reduce their microbe-killing power
Advancements in Nanotechnology
Great for making a large scale of soil and/or groundwater more acceptable
Permanganate (MnO4-)
Fenton’s (hydrogen peroxide [H2O2] and Ferrous iron [Fe+2])
or catalyzed hydrogen peroxide (CHP)
Ozone (O3)
Persulfate (S2O82-)
Most Commonly Used
To get the best outcome multiple injections are needed
Ex. Pesticides + Ozone > harmless inorganic compounds
Oxidants therefore transform contaminants(fuels, pesticides,solvents ) into less harmful materials
Uses strong oxidants
Cotton Cloth Coated in Nanotubes Electrifies Bacteria to Purify Water
One of the oldest forms of water purification
Effectively remove many contaminants from drinking water, including bacteria, inorganic and many organic compounds
A distillation unit is typically a large container that boils water, and then cools it to a liquid state that is now purified
Cost is rather high compare to most, and is needed repairs
A piece of cotton cloth coated in nanotubes
High-tech broth full of silver nanowires and carbon nanotubes
This removes 98% of bacteria
To remove the rest, electrocute the cloth
Can be generated by
small solar panel
a couple 12-volt car batteries
a stationary bike
a hand-cranked device.
By Ambrose, Amanda, Angelina, Erik
A process that applies pressure to water with contaminants into a semi-permeable membrane which allows clean water to pass and blocks most contaminants.
The Fresh
The Targeted Impurities
Suspended Particles
Plasmodium Parasites
Vibrio cholerae
E. coli
Human Coronavirus
Porous Top
Minerals Added
Ion Exchange
Carbon Nanotube Cloth
Silver Ions
Carbon Nanotube Cloth
lower and upper respiratory tract infections
infects the intestinal tract of almost all young children by age 5
common cold
Causes Cholera
Causes Diarrhea
Thank you for your support!
Full transcript