TWITTEROur Wave-Powered Sustainable Desalination Solution
Oneka Technologies turns seawater into fresh water in an innovative and sustainable way by harnessing wave energy.
Over the years, we have developed great expertise in the exploitation of wave energy and are now able to offer high-performance and reliable patented solutions to our customers. Oneka’s water quality is adjusted to meet the World Health Organization standards and/or local water standards.
Water supply for urban and remote communities, industries and resorts
This class was developed to deploy commercial-scale projects for coastal communities, industries and resorts. One unit can provide water for 100 to 3000 people per day depending on consumption.
Unit Specifications
- Production capacity: The optimal quantity of buoys is calculated in order to meet water needs. (The production depends on wave height.)
- Dimensions: Around 8m (26 ft)
The many benefits include:
We can adjust the number of buoys to meet the changing water needs of our clients.
The brine we discharge has a negligible impact on marine flora and fauna since its salt concentration is slightly higher (30-50%) than that of the ocean. As each buoy independently discharges its own brine high in an active water column it is also quickly returned to ambient salinity.
The meshes of our strainer are 60 microns (smaller than the diameter of a human hair) and intakes at a very low velocity, which greatly mitigates the entrainment of any sealife.
Our units are designed to withstand 6 m (20 ft) waves without intervention. Storm survival features are in place for harsher conditions.
Site requirements for deploying a large-scale buoy array
Piloting and
demonstration purposes
The P-class unit was developed to deploy demo sites and
pilot projects in order to show the performance of the
technology in new markets. One unit can provide water
for 20 to 300 people per day depending on consumption.
Unit Specifications
- Dimensions: 5 m x 2.5 m (17 ft x 8 ft)
- Weight: 2,250 kg (4,960 lbs)
Emergency relief
and small scale
applications
From our larger scale desalination units, we down-sized our
most advanced technology to provide plug-and-play
desalination buoys, the IceCube-class units, for humanitarian
and natural disaster relief applications.
Unit Specifications
- Production capacity: 1 m3 (265 US gal) /day/unit
- Dimensions: 1.5 m (5 ft)
- Weight: 350 kg (772 lb)
The many benefits include:
Our robust and purely-mechanical system can provide you weeks of water. It is an all-in-one solution that includes all you need to turn seawater into drinking water and then store it.
Each IceCube-class unit eliminates the need for the costly and logistically complex transport of 1,000 liters (265 US gallons) of bottled water per day, significantly reducing environmental pollution associated with bottled water production and transportation.
IceCube-class unit comes complete with desalination process plant, wave-powered buoy, anchor, water pipeline, reservoir, components, tools and spare parts. Options : Barge for launching when no crane available, data acquisition system for real-time, remote monitoring of system performance, etc.
How does the solution work?
Oneka’s surface buoys are tethered to anchors on the ocean floor.
The oscillating motion of the waves is harnessed to actuate a water pump. The seawater is pressurized when the buoys rise and is propelled towards a process plant in which water is filtered and desalinated through an energy optimized reverse osmosis process before being benignly discharged back to the sea.
Buoys can be configured with a desalination plant on each buoy, a larger desalination plant on one of the buoys or with a desalination plant onshore with an electric backup pump depending on the client’s needs.
Water is transmitted to the shore using the residual wave energy in a submerged pipeline, which can then be stored or directly distributed.
Instrumentation and telemetry are powered from a solar/battery pack.
