Osmosis is the process by which a solvent passes through a semi-porous membrane. Reverse osmosis follows the same procedure but in the opposite direction when natural osmosis occurs. This is one of the techniques used in the purification of water. The article attempts to discuss the advantages and disadvantages of using a reverse osmosis filter
What happens in reverse osmosis?
Unwanted substances are separated In water filtration techniques, undesirable particles are removed through the use of sand-beds and clay which separate unwanted substances from the water. Essential minerals and salts are blocked In the osmosis system, water passes through an osmosis filter which blocks salt and minerals to pass through. These are desirable properties of the water which humans need. This means that good parts of the water which provide essential minerals and salts are retained. Tiny harmful substances can get through However, there are also particles whose active properties are smaller than the semi-permeable membrane and allows tinier and harmful substances to get through such as pesticides and herbicides. Taste of water is affected Certain minerals found in water which are essential for humans are also lost in the process leading to altered and different tastes in water. Huge amounts of water are lost Moreover, reverse osmosis is a slow process which requires huge amounts of water to be displaced for the process to occur. For every litre of purified water, between two to three litres are lost and wasted in drinking water systems.
Solutions and alternatives
If you are thinking of installing a home water purification system using reverse osmosis technique, consider using carbon filters or a combination of UV disinfection to decrease the probability of toxic materials finding its way into your water. Look for a better type of water filtration system Reverse osmosis might not be the right approach for your home water filtration because of the disadvantages they present. In this case, look for some other type of water purification system which is suitable for your needs and budget. Other types of water filtration system Other types of water treatments include use of house water softeners, distillers, active carbon filters, and UV disinfection. Important advice Read labels carefully and take note of products which are approved by national regulatory bodies. This is to ensure that the claims of manufacturers are verified using standards which are enforced. Comparison Compare reputable user reviews and ratings across brands of home water filter according to ease of use, price, taste of water, and effectiveness.