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Legend

  1. Hydro-Kinetic Turbine

    Kinetic energy from the running river is captured by the hydro-kinetic turbine and turned into useful electrical energy in the generator.

  2. Hose leading to Water Pump

    The hose is connected to a large sediment filter and guides the water into the filtration system.

  3. Large Sediment Filter

    This stage removes most large particles above 5mm in diameter and prevents sediments from clogging up the circulation system. There will also be an activated carbon filter which removes organic chemicals. The filter in place is designed to be easily replaceable.

  4. 12V Generator

    The generator is directly connected to the turbine. It is designed to output 12V at 200W, in order to power our entire system.

  5. Water Pump

    The water pump provides the water pressure necessary for circulation. Once activated, the pump will force untreated river water at high pressure through the reverse osmosis membrane tubes.

  6. Reverse Osmosis Membrane Tubes

    The reverse osmosis tube contains rolls of membranes which removes most impurities from the river water.

  7. Ultraviolet Light Sanitization Unit

    Clean water which flows from the tube are additionally sanitized by the ultraviolet lamp to remove any unfiltered viruses or bacteria.

  8. Battery Box

    The battery box stores the electricity produced and also contains a circuit which regulates the power and voltage of our entire system.

  9. Data Collection Module

    The data module continually tracks the overall rates of power and water generation. It can be programmed to indicate a full water tank, or warn the user when the filters require replacement. It can also connect several of our devices in a mesh network, gathering data in order to optimize the placement of our devices.

  10. Foldable Steel Arm for Easy Stowaway

    The hydro-kinetic turbine and power generator is attached to the box via a foldable steel arm which can be adjusted to fit the water level in the river.

  11. Clean Water Outlet

    A storage device can be attached to this outlet to collect the treated river water.We estimate around 700 litres of water to be produced a day.

  12. Waste Water Outlet

    Not all of the water is successfully forced through the reverse osmosis membranes, and the remaining waste water is expelled through a pipe back into the river.

Our group proposes to alleviate the lack of clean drinking water in Ghana by providing a portable, pico-hydrokinetic water sanitization system which can readily service local, rural villages.

The Dwiri system we present is reliable in obtaining large amounts of water from a constant supply of river Densu, while the supplied water is safely sanitized to industrial standards.

The system is made portable such that it could be implemented in multiple locations according to the need for water. In addition, the technology is low-cost and environmental friendly. Most importantly, the components can last for months before filters need to be cleaned or replaced, at little cost with no technical knowledge needed.