NVTerra NVAqua® UF-100
NVTerra produces and sells the NVAqua UF-100 water treatment, an automatic system capable of purifying 100 m3/day of raw surface water.
The NVAqua UF-100 plant is designed to ship ready-to-use in a container and run automatically, adjusting dosages of chemicals based on water quality monitoring. The system requires addition of salt, iron, and energy to run, producing all other treatment chemicals in-situ. The treatment steps are: Coagulation with Ferilec produced in situ, Biofiltration, Disinfection with hypochlorite produced in-situ, Reducelf, Sand filtration, Activated carbon filtration, Microfiltration, Ultrafiltration.
NVTerra, a Swiss water engineering company, manufactures, sells, and provides support for all NVAqua® treatment plants.
Because of the high level of treatment and, the NVAqua® UF-100 is most competitive with full-scale drinking water treatment plants and small containerized package plants that can operate off-grid.
Goal 6: Clean water and sanitation
Trained water utility operators, disaster responders, eco hotels and lodges
The NVAqua UF-100 is manufactured in Switzerland and comes in a shipping container assembled and ready to use.
Users can obtain the product through direct sales from the manufacturer.
Three sales and installations of the treatment plant in the Ivory Coast in 2016
The UF-100 can treat turbid waters up to 1,500 NTU and removes all heavy metals, nutrients, pesticides, herbicides, hydrocarbons, and coliforms with a water recovery rate of 90%. In one hour, it produces 4.167 cubic meters (100 m3/day) of treated water and requires 4.8 kWh of electricity, 144 grams of salt, and 12 grams of iron. The electrical needs can be met by solar panels in off-grid scenarios. The treatment steps are coagulation, sedimentation, biological treatment, disinfection, oxydoreduction, sand filtration, activated carbon filtration, microfiltration and in some cases, depending on the composition of the water, ultrafiltration or nanofiltration or reverse osmosis.
Source: EBN Award for NVAqua®
There is no complex pre-installation; it is possible to operate the NVAqua® unit directly into the container, converted and equipped with solar panels where appropriate. In this case, only concrete flooring, a delivery pipe for the unsafe water and an outgoing pipe for the drinking water are needed. The manufacturer, NVTerra, can train local technicians to use the computer program that displays operational data and assist them via the remote control system.
The plant requires 32 grams of salt, 3 grams of iron and 1.1 kWh energy per cubic meter of treated water produced.
The filter media needs replacement every 3 years and costs $600 – $1,750 (500 ~ 1500 €)
The pumps and electrodes need maintenance every 5 years and cost $1,200 – $2,300 (1000 ~ 2000 €)
Replacement components can be ordered from the manufacturer.
With proper maintenance and replacement of components, the NVAqua® UF-100 can last 20 years or longer.
Meet WHO standards for Drinking water treatment from turbid up to 1,500 NTU river water with 90% recovery. The treatment process also produces excess sodium hypochlorite, or household bleach, which can be collected and used to clean the facility or sold for profit.
Two Swiss laboratories conducted analyses in 2009 for treatment performance of the unit using muddy canal water spiked with toxic contaminants. The test results on samples taken only after the first two stages of treatment showed that the units were effective in reducing concentrations of nitrates, phosphates, arsenic, lead, and cadmium. The flow of raw water input was 4.550 liters per hour and its turbidity was 65 UT/F90.
There are no hazardous chemicals needed, only salt and iron which can be safely stockpiled without extra precautions. Handling of sodium hypochlorite (bleach), a byproduct of the treatment process, requires the use of gloves and face masks in an enclosed area to prevent exposure to skin or inhalation of fumes.
Safe water storage tank or tower for distribution.
Meets WHO standards for drinking water treatment
Tested by the manufacturer and two independent laboratories for removal efficiency at the pilot plant scale using contaminated canal water
Winner of the 2009 EBN AWARD for Innovations
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