Dear friends I have a querry about purifying our area water with TDS level 2600 ppm, it is said that domestic purifying systems are not suitable for purifying water for this TDS level. Can some one suggest us a proper purifying method for this tds level and that should be an economical option. (chepset among all methods available)
We can also go for desalination plant if it is feasiible to establish it on a small scale. (We want water for 2000 people daily.)
I appriciate your work and I also tried getting answer from the existing questions on this portal. But we are really looking for some cheap and simple options. Your sugetions are very much appriciated. Thank you.
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The Best possible method to be used to reduce the TDS is ULTRA FILTRATION technique followed by REVERSE OSMOSIS.
Ultra filtration is one of a low pressure membrane filtration to selectively remove suspended and colloidal particles up to a level of 0.001 micron in size. UF is generally used as a pre-treatment to RO plants.
Reverse osmosis is an advanced technique, which has the ability to separate smallest of the particles, molecules and ions. Reverse osmosis supplements conventional techniques; it takes up where the conventional methods are unable to show satisfactory effects. R.O. is especially suitable for areas with high level of Total Dissolved Solids (T.D.S.) and Hardness. R.O. makes saline and brackish water palatable and tastier by reducing TDS and hardness. R.O. also makes the water both chemically and microbiologically safe by reducing Pesticides, Fluoride, hazardous metals contaminants like Lead, mercury, Arsenic etc. and eliminates water borne disease-causing micro-organisms.
An R.O. water purification device is equipped with a Membrane filtration module having very fine pore size of 0.0001 micron. Raw water is pushed under a high pressure through this membrane filter. The output water that finally comes through the membrane filter is free from Total Dissolved Solids, Hardness, Micro-organisms and chemical contaminants.
In case of R.O., pure water is extracted from the impure supply water. R.O. produces 1 liter of purified water from 3 liters of raw impure water. Two liters of waste water is rejected . This waste water can be utilized for wiping the floor, car wash or watering the plants.
Dear Thompson, You have'nt mentioned the source of water. I presume it is a ground ( borewell) water unless its a seawater contaminated. Fir Borewell water, if TDS is only concern aspect and you r open to even desalination, I suggest to go for SSF / MCF / RO scheme.
Tina, check out a Carcocell solar desalination technology details. Carocell solar desalinating/purification technology is the most efficient and cost effective product of its kind, producing pure, clean drinking water on any scale from any water source, using renewable solar energy, emitting zero carbon emissions and zero liquid discharge.