A BRIEF INTRODUCTION ABOUT RO
Reverse osmosis removes impurities from raw water or feed water when pressed through a semi-permeable membrane. Water flows from the more concentrated (more impurities) side of the reverse osmosis membrane to the less concentrated (less impurities) side to provide clean drinking water. The fresh water produced is called permeate. Leftover concentrated water is known as residue or brine.
A semi-permeable membrane has small pores that block contaminants but allow water molecules to flow through. In osmosis, the water becomes more concentrated as it passes through the membrane to achieve balance on both sides. However, reverse osmosis prevents contaminants from entering the less concentrated side of the membrane. For example, in reverse osmosis, when pressure is applied to a volume of salt water, the salt remains and only clean water flows through it.
A reverse osmosis system uses a pre-filter to remove sediment and chlorine from the water before pushing the water through a semi-permeable membrane to remove dissolved solids. Once the water leaves the reverse osmosis membrane, it passes through a post-filter to polish the drinking water before it enters a special tap. Reverse osmosis systems have different stages depending on the number of upstream and downstream filters.
Every reverse osmosis water system contains, in addition to the reverse osmosis membrane, a sediment filter and a carbon filter. Filters are called pre-filters or post-filters, depending on whether the water passes through them before or after passing through the membrane.
Each type of system contains one or more of the following filters:
- 1. Sediment filter - reduces particulates such as dirt, dust and rust
- 2. Carbon filter - reduces volatile organic compounds (VOCs), chlorine and other impurities that give it bad water taste or odour
- 3. Semi-permeable membrane: Removes up to 98% of total dissolved solids (TDS)
MINI RO SYSTEMS
The MINI range of reverse osmosis systems is suitable for various commercial and residential purposes and can be used to purify well water. Each system is compact in size, which means the units can easily be accommodated in the tightest of spaces, such as small rooms, basements, or roof sheds. All systems include pre and post treatment to ensure complete water purification.
This system involves using purified water in the whole house, even for the use of gardening as water is purified for whole house which prevents scaling the pipeline and prevents entry of contaminants with water right at the door of filter. A high grade membrane should be used for Mini Ro plants as they serve the whole household and must be non-tolerable of pathogens as purified water is used for drinking purpose. RO systems are quite efficient in removing metals like arsenic, aluminium, cadmium, chromium, barium, Hydrocarbons, lead, mercury, Radium, sodium, etc.
To keep this system up and running all the time is most important and that requires timely servicing and maintenance of the system.