Our client has been setting up a new ready mix factory in Bahrain. Here they face a challenge with feed-water having very high levels of Hydrogen Sulfide (H2S). They need a containerised (40ft) seawater RO system that produces minimum 100,000 GPD/day.
The level of H2S in the feed-water was a real challenge. We had therefore designed a system that differs from our conventional seawater RO systems. Our aim is that the water leaves the system without affecting or damaging the system. Hence, our main strategy is to avoid that the water gets in contact with air. This helps avoid H2s to form components that block the system.
There is no secret that we have faced several challenges during the installation of the system. The constant variations in the feed-water and unreliable water analysis impacted the quality of the produced water quality.
We never commission a system if it underperforms. We have therefore stopped the work with the installation to take time to find a reliable solution. We had done our own analysis of the feed-water over time. In addition one of our design engineers have monitored the system over a period of three days.
Based on our analysis and the feedback from our design engineer we have modified the system to suit all the variations in the operating environment. Our changes have resulted in a reliable system that is now running 24/7 and deliver as per our client’s requirements.
SCOPE OF WORK
Capacity: 378 m³/day (100,000 GPD)
Power Supply: 380-415V, 3Phase, 50 Hz
Pre-treatment Flow Rate: 64 m³/hr
Product Flow Rate: 75 m³/hr (100000 USG)
Average Recovery: 55.0%
Expected Product Water TDS: < 250ppm @ 25°C
Operating Hours Day: 24
No. of Trains: 01 No. installed in 40ft container
The system was installed and commissioned by Advanced Watertek engineers. The treated water quality met all of the client’s parameters.
We commissioned a containerised (40ft) seawater RO system that produces minimum 100,000 GPD/day. The level of H2S in the feed-water was significantly reduced. We designed a system that differs from our conventional seawater RO systems. The idea was that the water leaves the system without affecting or damaging the system. In order to do this, we made a significant amount of components airtight, allowing the machinery to be preserved from the harmful effects of H2S
The system still is performing within the operating parameters set by the client, reducing operating and water purchasing costs and saving money.