Technologies In Ro Plants
Implementing and developing new technologies for water treatment has been a concern to researchers and scientists all over the globe. Primary factors which are included while designing and optimizing the water treatment technologies are: new age contaminants, water quality standards and economy. In previous century clarification, media filtration and chlorination were the only processes implemented for water treatment. For any new technology to enter the market, it must have advantages over the previous ones. Various treatment technologies have been developed and much more is under development. Space age has been filled with reverse osmosis technology.
The various technologies that direct the treatment process using RO technology are as:
1. Membrane Filtration:
This can be subcategorized as: low pressure membrane and high pressure membrane filters. The filters differ in the operating pressures and the examples for the former are: microfiltration and ultrafiltration while for latter we have reverse osmosis and nanofilitration.
2. Low pressure membranes:
These filters are used to clean the surface waters. The filter has several advantages over traditional methods. These include: low chemical usage, no disinfection by product, and eliminating turbidity etc. On the other hand they are effective in removing dissolved organic matter.
3. High pressure membrane:
Reverse osmosis and nanofilitration comes under this technology. The membranes used in this technology are designed specifically as size is vital factor for the cleaning process. Reverse osmosis membranes are efficient in removing color and are praised for their disinfection results. RO membranes have been vastly used for desalination of sea water. These membranes of capable of removing 99% of dissolved solids present in the water.
4. Two stage membrane filtration:
Combination of two membranes in series results in two stage membrane filtration. These are efficient in removing all the dissolved matter (organics and inorganics). The examples of combination are micro filtration followed by ultrafiltration or nanofilitration followed by reverse osmosis. The primary concern here is to overcome the cost.
5. Ultraviolet Irradiation Technology:
This technology has been primarily used for disinfection process for both domestic and industrial water and wastewater. The germicidal effect of ultra violet rays is quite understood. The wavelength ranges from 250-270 nanometers. The process has scaled up to large treatment units as well.
Types of UV technology used
- 1. Low pressure
- 2. Medium intensity
- 3. Medium pressure
- 4. High intensity
6. Advance oxidation technology:
The term was first used by Glaze et al. It described a process that defined the radicals of hydroxide which helps in degradation of organic and inorganic water impurities.
7. Ozone:
The application of Ozone has been quite evident as the process is quite good in removing color, taste and odor control, and disinfection. The residual effect is not so good but the technology is helpful if combined with reverse osmosis unit. The disinfection with ozone is comparatively better than chlorine.
The other technologies that have been under development and some of them are currently emerging are usually combination of these. The list goes as: ion exchange technology, UV with hydrogen peroxide, and ozone with hydrogen peroxide.
Netsol Water has been extensively working towards sustainable future of our country. We are the one of the leading industry as the top quality commercial RO Plant manufacturer in Delhi-Noida region of India. The RO plants for industrial units are developed with intense care and research to fit into the demands. The RO plants manufactured are optimised to work in extreme conditions with no compensation in results.
