Water purification technology methods are important for human survival. The recommended total amount of water needed for our bodies is 64 ounces. We get this from a number of sources but water is the best. We require our water to be pure or else we will suffer from a number of diseases and diarrhea. This article explains a few different new high tech methods to purify water.
Water purification (according to Wilkepedia) is the process of removing undesirable chemicals, biological contaminants, suspended solids and gases from contaminated water. The goal of this process is to produce water fit for a specific purpose. Most water is disinfected for human consumption (drinking water) but water purification may also be designed for a variety of other purposes, including meeting the requirements of medical, pharmacological, chemical and industrial applications. In general the methods used include physical processes such as filtration, sedimentation, and distillation, biological processes such as slow sand filters or biologically active carbon, chemical processes such as flocculation and chlorination and the use of electromagnetic radiation like ultraviolet light. The purification process of water may reduce the concentration of particulate matter including suspended particles, parasites, bacteria, algae, viruses, fungi; and a range of dissolved and particulate
Ian Cummins of Starfish Enterprises in Hong Kong developed an advanced water treatment and purification system in 2008. This system uses natural science to purify waste water which makes it less expensive to operate. This large scale purification method is cost effective as it only uses electricity to power ultra violet lights as one of its ways to purify the water.
The Starfish method works against all types of pollution issues such as chemical sewage,
heavy metal (e.g. gold & silver), hormones, bacteria, pharmaceuticals, acids and viruses.
Even removal of salt from salt water is possible with the starfish technology. There is
no toxic discharge which other purification methods have. The Starfish method meets all
international standards for raw sewage treatment regardless of what substance has polluted the water.
The Starfish method utilizes advanced oxidation, ultra violet, fractionation and ozonation as
natural science methods. Waste water is moved around the system using gravity instead
of pumps. Gravity allows the water to flow at low pressure with variable flow rate control.
The gold mining industry in Australia has a huge interest in this technology to meet their pollution standards. The Starfish technology is explained on their web site at: http://www.starfish-water.com
On the other hand, the Reverse Osmosis Water Purification process is another water treatment technology which preserves/adds important minerals that improve the quality of water. Reverse Osmosis was originally designed to be a method of desalinating salt water. However it now is sold commercially to obtain better quality drinking water in homes and businesses.
Reverse Osmosis utilizes a semi porous covering to divide two liquids of different concentrations causing water to passes across the covering to the solution with the higher concentration. After that, water is forced over a very fine semi porous membrane so only single molecules can go through. Pollutants get separated giving you uncontaminated water without heavy metals, remains, salts, sediments as well as toxins.
The Reverse Osmosis filter can be changed on site to control mineral content. Reverse
Osmosis filters have a long life except they require periodic replacement of the semi porous
membrane especially if the water is extremely impure.
Reverse Osmosis does not modify the innate mineral content of water, contrasting the
majority of filters. Preservation of minerals in drinking water has made this form of
water treatment makes health conscious people happy. Reverse Osmosis can be used
to sanitize any kind of water i.e. from the well, storage container, canal or sea.
The previous water treatment systems are great but those systems mentioned earlier
can not easily be moved from one place to another. This makes those water treatment
systems not suitable for use while camping.
The next water treatment system called Life Straw seems to be a variation of the Reverse
Osmosis technique which forces water though a filter which removes anything larger than
0.2 microns from the water. This removes the majority (greater than 99.9%) of waterborne protozoan parasites & bacteria. This exceeds the EPA requirements for water filters.
Life Straw can filter a maximum of 1000 liters of contaminated water without chlorine, iodine or other chemicals. Life Straw is in a sealed bag which can be stored for emergencies. The best thing about Life Straw is thatg it can easily be carried around and used while camping.
LifeStraw is a tube about 9.25 inches (23.5 centimeters) long and about an inch
(2.5 centimeters) around [source: Wilhelm]. The outer shell of the unit is made of a durable
plastic, with a string attached so users can wear it around their necks. To use it, a person
simply sticks the LifeStraw directly into the water source and drinks as he or she would from a straw.
The very first generation of LifeStraw used iodine to kill bacteria, but the 2012 version
contains no chemicals. Instead, the product incorporates mechanical filtration. When you
suck on your LifeStraw, water is forced through hollow fibers, which contain pores less than 0.2 microns across — thus, a microfiltration device. Any dirt, bacteria or parasites are trapped in the fibers, while the clean water passes through. When you’re done drinking, you simply blow air out the straw to clear the filter. You can down a quart of water in eight minutes using the LifeStraw product.