Water Treatment Plants

We provide Reverse Osmosis Plants which are based on the reverse osmosis process to clean impure water. Reverse osmosis is the process of forcing a solvent from a region of high solute concentration through a membrane to a region of low solute concentration by applying a pressure in excess of the osmotic pressure. As Reverse Osmosis does not occur naturally, it must be created by applying pressure to the high solids water in order to force it through the membrane, with pressures from 8 - 14 bar for fresh and brackish water, and 40 - 70 bar for seawater, which has around 24 bar (350 psi) natural osmotic pressure which must be overcome. The membranes used for reverse osmosis have a dense polymer barrier layer in which separation takes place.

Operating process: Our RO Plants work on the Cross flow Filtration method, which takes the feed water and uses a percentage of it as a wash or reject stream, removing the solids during the filtration process. The product flow of an RO is mainly a function of temperature and pressure. RO units do not deliver to service all of the water that is fed to them. During operation, some of the incoming water is used to wash down the membrane, and only part becomes finished product water. Purified water is referred to as product and wastewater is referred to as concentrate, or reject. The percent of water delivered as product is called the recovery, and depends upon the membrane and on total RO unit design considerations

Pretreatment of water The feed water contains various concentrations of suspended solids and dissolved matter. Suspended solids include inorganic particles, colloidal particles and biological impurities such as microorganisms and algae. Dissolved matter comprise of highly soluble salts, such as chlorides, and sparingly soluble salts, such as carbonates, sulfates, and silica. During the RO process, the volume of feed water decreases, and the concentration of suspended particles and dissolved ions increases. Suspended particles may settle on the membrane surface, thus blocking feed channels and increasing pressure drop across the system. Sparingly soluble salts may precipitate from the concentrate stream, create scale on the membrane surface, and result in lower water permeability through the RO membranes. This process of formation of a deposited layer on a membrane surface is called membrane fouling and results in performance decline of the RO system. The objective of the feed water pretreatment process is to improve the quality of the feed water to the level which would result in reliable operation of the RO membranes.

In general pretreatment comprises of the following steps: 

• Clarification followed by Sand Filtration for Turbidity removal 
• Water disinfection with chlorine 
• Hardness reduction by Softening 
• Addition of scale inhibitor 
• Reduction of free chlorine using sodium bisulfite/ Activated  carbon filters 
• Final removal of suspended particles using cartridge filters 

Post Treatment:

Based on the Output water quality required, the post treatment process consists of all or some of the following treatment steps:

• Ozonation  
• Ultra-violet 
• Chlorination systems

We provide mineral water plants that upgrade the quality of drinking water. Through our mineral water plants we are able to determine the impurities in water and make water drinkable by removing the impurities.

Some of the impurities that are removed include:

• Non-ionic & un-dissolved physical impurities. [Turbidity, Odor, Color etc] 
• Ionic and dissolved impurities [Ca, Mg, Na, So4, Cl, iron etc]  
• Microbiological impurities [ Bacteria, Virus, Pathogens etc] 

Our water treatment plant comprises of water treatment plant as well as packaging plants. Our water treatment plants are available in one or all of the following processes:

• Chlorine/Hypo chlorite dosing system 
• Pressure Sand Filter 
• Activated Carbon Filter 
• Antiscalant Dosing (Scale Inhibitor) System 
• Micron Filters 
• Reverse Osmosis System 
• Ultra Violet Sterilizer 
• Ozone Generator 
• Ozone Contact/ Recirculating Tank

We manufacture and supply technologically advanced activated carbon filters. Our activated carbon filters are available in different size and in material range. Our carbon filters are available both in manually operated as well as in automatic mode. Our range is designed to remove free chlorine, organic matter, odor and color present in the feed water with minimum pressure drop.

Working Principle:

The activated carbon filters contains activated carbon granules of defined iodine absorption values as per the application. Water enters the filter and percolates through the filter bed. Free chlorine, organic matter, odor and color are adsorbed by the Activated carbon. Treated water then goes via the filtration nozzles through the filter outlet.

Application & Advantage:

 
The activated carbon filters are used for pretreatment of all forms of industrial water treatment, pretreatment to all forms of potable water treatment and metal recovery. Some of the advantages of our activated carbon filters are as follows:

• Easy to operate 
• Requires least maintenance 
• Excellent filter quality at higher flow rate than conventional ones 
• Low pressure drop

We provide optimum quality UV sterilizers that are manufactured using qualitative SS 316 as raw material and electro polished internally as well as externally for corrosion free services. Our UV system allows water to come in contact with Ultra Violet rays having 30,000 micro watts second/cm2 UV dosage & 2537 Angstrom (254 nm) units wavelength. The silica quartz jacket provides 100% efficiency due to its pure crystal clear transparency as compared to the Teflon tubes which has only 25% transparency. Our UV water purification system is available in different range for drinking and process water applications with outputs ranging from 100 lph up to 1,00,000 lph.

Some of the advantages of our UV units are as follows:

• More effective against viruses than chlorine - Chlorine is becoming less acceptable because of harmful by­products, handling problems, & risk of overdosing.
• Immediate treatment process, no need for holding tanks, & retention times, so footprint is small.  
• Extremely economical due to low capital, operational & maintenance costs. 
• No chemicals added to the water supply – resulting in no byproducts & no need for specialized storage requirements 
• No change in taste, odor, pH, conductivity of water 
• Automatic operation 
• Simplicity and ease of maintenance, periodic cleaning, and annual lamp replacement, no moving parts to wear out 
• Easy installation, only two water connections and a power connection 
• Compatible with any water treatment processes, (i.e. RO, filtration, and softening). 

Our optimum quality gravity sand filters and pressure sand filters are available in different sizes and material. Our sand filters are operated manually as well as automatically. These are designed and developed to remove turbidity and suspended particles present in the feed water with minimum pressure drop. The Filter consists of a multiple layer of sand with a variety in size and specific gravity.

Working principle:

In sand filters water enters in the filter and percolates through the filter bed. Suspended matter present in the water comes in contact with the media particles and is trapped on the top of the bed. Followed by this, clean water comes out through the filtration nozzles and through the filter outlet. Periodically cleaning of this filter is done by backwashing. Water is introduced in the reverse direction of the service flow that is from the outlet nozzle upwards causing suspension of the turbid material in the filter bed & finally flushing out through the backwash valve. The Filter is then down rinsed & clear water is taken in the system.

Filter media:

Filter Media are used depending on the raw water quality and the treated water quality required. Our range of seven bedded filtration systems custom made to achieve the turbidity level of less than 1 NTU & Suspended solids less than 10 ppm. The Filtration beds comprises of the coarsest beds starting from Pebbles of 40 – 65 mm size to the finest layer of fine sand 0.8 to 1.6 mm size.

Applications

• Pretreatment to all forms of Industrial water treatment 
• Potable Water treatment 

Advantages: 

• Easy to operate
• Less maintenance 
• Better filter quality at higher flow rate 
• Negligible Pressure drop

We offer a comprehensive range of water treatment solutions with latest pool and spa technology. Our varieties of Pools & Spas includes Inground Pools, Semi ground Pools, Concrete & Liner Pools, Portable & Inground Spas, Filtration Systems, Dosing Systems & Accessories. We also offer turnkey solutions to our swimming pools, Jacuzzi / spas from the beginning to end which includes from conceptualization to installation. Our structures vary in shape, size or depth; as these are based on latest Surflo systems. For Pool disinfection, we offer world class dosing systems, to maintain hygiene of the pool. Filtration, disinfection and cleaning of the pool can be fully automated, thereby enabling your swimming pool to be in operation virtually independent.

Our SURFLO system is based on the following established facts: 

• The diseases contracted by bathers are chiefly those of eyes, ears, nose and throat. 
• The most potent germ-carrier is floating mucus. 
• Maximum pollution occurs at the surface of the water.