Testing Report at Site
System Description: RO 25m³ Reverse Osmosis Unit
1. System Overview
The RO 25m³ Reverse Osmosis system is designed for water purification and desalination
processes. It produces up to 25 cubic meters (25,000 liters) of treated water per hour,
ensuring high-quality water by removing dissolved solids, contaminants, and impurities
from the feed water.
2. System Capacity
• Production Capacity: 25m³ per hour (25,000 liters/hour)
• Feedwater Source: Rain Water, BMC Water
• Operating Pressure: 1.5-2kg (Sand, Carbon) & High Pressure pump (10kg)
3. Main Components
1. 1. Pre-Treatment Unit:
Sand filters, activated carbon filters, and micron filters are used to remove large particles,
sediments, chlorine, and organic matter from the feedwater, ensuring the RO membranes
are protected from fouling.
2. 2. High-Pressure Pump:
A high-efficiency pump delivers the required pressure to force water through the semi-
permeable RO membranes.
• Pump Capacity: 37kW/HP
3. 3. RO Membranes:
The heart of the system, RO membranes allow water molecules to pass through while
rejecting dissolved salts, heavy metals, and other impurities.
• Membrane Type: Hydra
• Recovery Rate: 50-75% (depending on feedwater quality)
4. 4. Post-Treatment Unit:
Treated water may pass through a polishing unit to adjust pH or remove any trace
contaminants.
Optional components include remineralization filters for potable water production or UV
sterilizers for microbial control.
4. System Operation
The system works by utilizing high-pressure pumps to force feedwater through the RO
membranes, separating clean water (permeate) from the rejected contaminants
(concentrate). Approximately 50-75% of the feedwater becomes permeate, while the rest is
rejected as concentrate.
• Feed Flow Rate: 34m³/hr
• Permeate Flow Rate: 25m³/hr
• Reject Flow Rate: 9m³/hr
5. Chemical Dosing Systems
• Antiscalant Dosing: Prevents scale formation on membranes by inhibiting the
precipitation of dissolved salts.
• pH Adjustment (Acid/Alkaline): Controls the pH of the feedwater to optimize membrane
performance.
• Chlorine Neutralization: Removes chlorine that can damage the RO membranes.
6. Control and Monitoring
• PLC Control System: The system is equipped with a Programmable Logic Controller (PLC)
that automates the operation, monitors system performance, and provides real-time data
on flow rates, pressure levels, and membrane conditions.
• Instrumentation:
- Flow meters for feed, permeate, and reject streams.
- Pressure sensors to monitor inlet and outlet pressures across the membranes.
- Conductivity meters to measure permeate water quality.
7. Typical Applications
• Drinking Water Production
• Industrial Water Treatment
• Desalination (Seawater or Brackish Water)
• Wastewater Reclamation
8. Maintenance and Cleaning
• Regular maintenance includes monitoring membrane performance, cleaning membranes
periodically (CIP – Cleaning in Place), and replacing pre-treatment filters.
• Membrane lifespan is typically 3-5 years, depending on feedwater quality and operational
conditions.
9. Performance Efficiency
• The system ensures an efficient reduction in Total Dissolved Solids (TDS) and other
contaminants, delivering permeate water with a purity level suitable for the required
application.
This system is ideal for medium to large-scale water purification applications, delivering a
reliable and consistent supply of high-quality water.
