The Tech Inc. Pressure Retarded Osmosis (PRO) System is a specialized osmotic energy and membrane testing platform engineered for PRO research, osmotic power generation studies, and membrane characterization. Designed in Vaughan, Canada and manufactured in Chennai, India, this system combines precision engineering with robust construction for reliable laboratory and pilot-scale performance. Tech Inc. is a Saudi Aramco approved vendor specializing in advanced membrane technology and water treatment equipment.
The Pressure Retarded Osmosis (PRO) System is a specialized membrane testing platform designed for osmotic energy harvesting research and PRO membrane evaluation. It enables researchers to study power density, membrane deformation, and fouling behavior under realistic PRO operating conditions.
Key Features
Dual-chamber PRO cell design with independent feed and draw solution circuits
Precision hydraulic pressure control on the draw solution side for accurate power density measurement
High-precision flow meters and pressure transducers on both feed and draw sides
Integrated conductivity monitoring for reverse salt flux quantification
Temperature control system for evaluating PRO performance at various conditions
Compatible with both flat sheet and hollow fiber membrane configurations
Applications
Osmotic energy harvesting and blue energy research
PRO membrane power density characterization
Draw solution optimization for maximum osmotic driving force
Membrane fouling and reverse solute diffusion studies under PRO conditions
Salinity gradient energy process development
Hybrid PRO-RO system feasibility research
Frequently Asked Questions
Q: What is pressure retarded osmosis and how does this system support PRO research?
A: Pressure retarded osmosis (PRO) harvests energy from salinity gradients by allowing water to permeate from a low-salinity feed through a semi-permeable membrane into a pressurized high-salinity draw solution. This system provides controlled conditions for measuring PRO membrane power density, water flux, and reverse salt flux, which are the key performance indicators for osmotic energy applications.
Q: What draw solutions can be used with this PRO system?
A: The system is compatible with various draw solutions including sodium chloride, magnesium chloride, and other inorganic salts at concentrations ranging from brackish to brine levels. The corrosion-resistant construction allows testing with a wide range of saline solutions to optimize osmotic driving force.
Q: How is power density measured in the PRO system?
A: Power density (W/m²) is calculated from the product of water flux through the membrane and the hydraulic pressure applied to the draw solution side. The system's precision pressure and flow instrumentation enables accurate real-time power density determination at various operating pressures to identify the optimal operating point.
Q: Can this system measure both internal and external concentration polarization?
A: Yes, by varying crossflow velocities on both the feed and draw sides independently, researchers can characterize both external concentration polarization (ECP) and internal concentration polarization (ICP) effects, which are critical factors limiting PRO membrane performance.
Q: What membrane types are compatible with the PRO system?
A: The system accommodates commercial and custom PRO membranes in flat sheet configuration, including thin-film composite (TFC) membranes, cellulose triacetate (CTA) membranes, and novel membrane materials developed for osmotic energy applications. Custom cell designs for hollow fiber testing are also available.