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In 2019, we had the opportunity to test our ideas for large-volume clean water solutions. Our successes from the “System Testing in Guatemala” spurred the interest of World Vision Kenya (WV-K) via Business Connect – a global distributor of clean water solutions. WV-K has a pilot program underway, and they saw our system concept as a possible solution to help them achieve their goals.
The Situation:
Initiated in 2015, WV-K is taking water from the Awatch River in the Dol Kodera Forest in Homa Bay County, Kenya, with the focused goal of providing water for 100,000+ people in this region . The water, harvested via river pressure and moved with gravity in an 8″ pipe, brings the water to the purification complex approximately 800-900 meters from the inlet to the filter station.
The system components at this location include a chemical injection station, a flocculation track, settling tanks, a wash tank, and a clean water tank. This treatment facility utilizes the chemical Alum to weight the undissolved solids in the water, causing the particulates to settle at the bottom in the water tanks and the cleaner water to rise to the surface. After the Centrifuge and then chlorination, this water then distributes to the network, which, when finished, will stretch across 27 kilometers, making the water available via water kiosks. The current treatment method uses an average of 80kg of Alum per day (60 to 100kg) at the cost of $ 59 USD per day.
They hoped to use our highest volume version of the BlackBox Series filtration system, the BBUV, to eliminate their current chemical injection treatment process for this project and future projects.
The Application:
The challenge was to increase the filtration capacity of a single BBUV unit and meet the desired volume of 83m3 (Cubic Meters) per hour or 1,992m3 per day.
Amplifying the design of our BlackBox High Volume unit to a 1″ architecture, we better than doubled the throughput from a base of 32 LPM (10 GPM) to as much as 113 LPM (30 GPM). The BBUV unit’s key feature, beyond its filtration capacity, is the reconfigurability to function in parallel as a group of filters – effectively increasing its volume capacity to filter water. In our testing, we had seen on the high end as much as 113 LPM (30 GPM) at 20 PSI; and on the low end, 90 LPM (24 GPM) at 40 PSI move through a single filter of our design.
Two banks – 6 unit BBUV systems were introduced into their purification system to achieve WV-K’s desire for 83m3 or 1,992m3 per day requires 1,383 LPM. Each bank has the potential capacity to process 678 LPM * 2 units and meets a possible flow rate of 1,356 LPM. This variance was within the margin of success at the time of committing to the project.
Late Discoveries:
After the project commitments, we became aware of a few critical details.
The Results:
The development of the BBUV filters, was the first system of its size placed in active operation. The results were varied, both less than favorable and favorable.
Less than favorable results:
theBlackBox Series water filtration systems produce clean water. They are practical for various applications, including cleaning wells or municipal water systems, purifying natural water sources such as lakes and rivers, and using them in industries such as agriculture, fish farming, and potable water supply.
We will continue to test our units on-site in Guatemala, Kenya, and other locations.
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