Brackish Water Reverse Osmosis Units
The raw water is drawn from raw water tank using filter feed pumps to feed the water into the dual media sand filter. Before the filters, the raw water is injected with Sodium Hypochlorite to kill any bacteria present in the water before entering the Reverse Osmosis Unit.
Also, the water is being injected with the following chemicals:
- Sodium Metabisulphate
- Sulphuric acid
- Anti-scalant
Sodium Metabisulphite is a dechlorination process to get rid of all traces of chlorine in the water to protect the membrane fibres.
The water is then pressurised by the high-pressure pump up to 16-28 bar depending on design conditions going into the membranes, where water is then separated into permeate (product) and the reject (waste) streams.
The product water from all membranes is collected in one manifold and then pumped to the product water tank. Before entering the product water tank, the water is being pH corrected (adjusted) and sterilised using the Chlorination system.
Tech Universal (UK) Ltd. uses automatic flushing system, which is in an integral part of the R.O. Unit design to prolong the life of the membranes.
Water Salinity: Tech Universal Brackish Reverse Osmosis Units can desalt water with maximum salinity of 6000 ppm (mg/lt)
Seawater Reverse Osmosis Units
Tech Universal Seawater Reverse Osmosis system design incorporates the updated membrane technology of spiral wound (thin film composite) membranes and hollow-fine fibre type membrane, where salt rejection reaches 99.8%.
RO Capacity: Tech Universal package RO Units ranges between 5-2000 m3 /hr. Above 2000 m3 /hr units are custom design built to client specification.
PROCESS: The raw water is drawn from raw water tank using filter feed pumps to feed the water into the dual media sand filter. Before the filters, the raw water is injected with Sodium Hypochlorite to kill any bacteria present in the water before entering the Reverse Osmosis Unit.
Also, the water is being injected with the following chemicals:
- Sodium Metabisulphate
- Sulphuric acid
- Anti-scalant
Sodium Metabisulphite is a dechlorination process to get rid of all traces of chlorine in the water to protect the membrane fibres.
The water is then pressurised by the high-pressure pump up to 26-28 bar depending on design conditions going into the membranes, where water is then separated into permeate (product) and the reject (waste) streams.
The product water from all membranes is collected in one manifold and then pumped to the product water tank. Before entering the product water tank, the water is being pH corrected (adjusted) and sterilised using the Chlorination system.
Tech Universal (UK) Ltd. uses automatic flushing system, which is in an integral part of the R.O. Unit design to prolong the life of the membranes
Water Salinity: Tech Universal Brackish Reverse Osmosis Units can desalt water with maximum salinity of 6000 ppm (mg/lt).
Optional Items:
- pH Chemical Dosing system
- Anti-scalant chemical dosing system
- Oxygen Redox Potential System (ORP) for chlorine control
- pH control system
- Acid chemical dosing system
- TDS meter
- 0—1200 psi pressure gauge
- Digital flow meter
- Cartridge filter housing
Automatic Water Softener
Advantages:
The advantage of Tech Universal water softeners include:
- Resin tank of glass fibre or carbon steel vessel corrosion proofed.
- Brine tank of polyethylene.
- High – value ion exchanger of
- Polystyrene.
- Flexible electrical and valve systems easily adapted to suit varying operating conditions.
Applications: Tech Universal automatic water softeners are designed for local authorities, industries, large residential buildings, hospitals and similar places demanding efficient water softening.
Design: The resin tank is made of either glass fibre reinforced polyester or carbon steel epoxy coated internally and externally for corrosion/rust resistant. Internally the softener has a PVC distributor, which spreads the water evenly over the whole resin bed.
Tech Universal water softening unit is manufactured to the highest international standard from non-corrodible materials, thus ensuring a long and trouble free life. The full 5 cycle operation of the unit is controlled by a twin piston Master Valve. Hence, regeneration of the ion exchange resins is fully automatic. The regeneration cycle may be initiated either by time clock, automatic resetting water meter, or by a manually operated pushbutton.
The softener is supplied fully mounted and pressure tested for immediate connection to the main water supply at the place of installation. The electrical equipments are connected via a protective transformer.
Operation: When the water passes through the softener, calcium and magnesium are absorbed by the ion exchange resin, at the same time corresponding amount of sodium is added to the water. This is the process of ion exchange.
The ion exchange resin is gradually saturated with calcium and magnesium. How long this takes depends on the hardness of the raw water and the amount of water consumed.
To restore the resin to its original state, a dilute solution of sodium chloride is added. This is a reverse ion exchange.
Calcium and magnesium are freed from the ion exchange material and led off to the drain. This process is called regeneration and takes place automatically according to the type of the control setting.
