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Reverse Osmosis (ARO) |
DESCRIPTION
 Exergy’s Advanced Reverse Osmosis (ARO) achieves superior
performance when
compared to conventional Reversed Osmosis. ARO operates at 1,000 psi
to produce higher concentrations in concentrates and better quality
permeates. The ARO features recycle pump operation for the membrane
housing, thus reducing the size of the pressure pump and the
consumption of energy. ARO uses a proven membrane - including a
patented membrane treatment process that allows the process to
operate efficiently in a pH range from 0.5 to 13.
FEATURES
▪ Produces high-quality permeates and
concentrates for recycling process fluids
▪ 0.5 – 13 pH range of operation
▪ Recycling pump reduces energy use
▪ Operator Interface Unit (OIU) allows auto
(PLC) or manual control and provides status
information
▪ Pre-assembled modular systems
▪ High-quality, heavy-duty components
APPLICATIONS
Exergy’s ARO technology can reduce operating costs significantly by
enhancing recovery and reuse of valuable waste by-products.
Applications include:
▪ Produce high-quality rinse water and recyclable
concentrates from wastewater
▪ Closed-loop operation of chrome conversion coating
processes
▪ Recovery of plating solutions and rinse water
(copper, nickel, and noble metals)
▪ Industrials process wastewater recovery
SYSTEM COMPONENTS
The ARO system consists of four major component assemblies:
Membrane module
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Skid-mounted stainless steel pressure vessel with application-specific membrane modules. Process equipment includes feed pump and flow control valve, cartridge prefilter, repressor pump, pressure regulating valve, and recycle pump.
Valve board
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includes:
▪ Flow control meters and valves
▪ Temperature switch for concentrate
▪ Membrane and feed pressure switch and gauge
▪ Conductivity sensor
▪ Selection valves for permeate, concentrate, and
bypass
▪ Pressure control valve
Control system -
Includes one control cabinet containing PLC, operator interface unit, push button for main power, conductivity analyzer, solenoid valve for feed, motor starters, control transformer, fuses, terminal strips, and power disconnect switch.
Auxiliary equipment
▪ Permeate and process water
tank
▪ Level switch to protect the feed and pressure pumps
OPTIONS
Exergy offers many ARO options as well as custom systems to meet
special requirements. Unique plant operating conditions and
applications can be incorporated into the standard system control
software, which can be modified easily as production requirement
change. The ARO system can be integrated with automated production
lines.
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