Reverse Osmosis & Water Treatment in Maldives
Maldives consists of 1,190 low-lying islands, lying along a north-south axis over a distance of some 1,000 kilometers (km), about 600 km southwest of Sri Lanka in the Indian Ocean.
In 1974, the cultivable area was estimated at some 2,800 hectares (ha), 9 percent of the total land area. However, in 1995 the total cultivated area was estimated to be 3,000 ha. Of the cultivated area, 2,000 ha were under permanent crops such as coconut and arecanut. Annual crops such as maize, sorghum, cassava, onion, and chilies were grown on an area of 1,000 ha.
River Basins and Water Resources
The islands do not have any rivers, but small brackish ponds are found on some islands. Rainwater is collected through water harvesting on a small scale and used for drinking purposes.
Groundwater is found in freshwater lenses underlying the atolls and floating on top of the saline water. Heavy abstraction of this as the main source of drinking water has depleted the freshwater lenses, especially in the capital city of Male, causing salt water intrusion. Groundwater is recharged by rainfall but becomes contaminated while percolating through the soil, which is generally polluted with organic and human wastes. A rough estimate of the groundwater resources, based on an assumed 0.1 m/year recharge throughout the country (300 km2), is 0.03 cubic kilometers per year (km3/year), which would be the only renewable resource of Maldives, though hardly exploitable because of seawater intrusion and pollution.
Maldives finds it extremely difficult to obtain suitable drinkable water. In 1991, there were three desalination plants in operation with a total production of 1,000 m3/d.
According to 1990 statistics, 98 percent of the urban population in the city of Male and 57 percent of the rural population on the atolls had access to safe drinking water.
The World Bank reports that at least 80 countries have water shortages and 2 billion people lack access to clean water. More disturbingly, the World Health Organization has reported that 1 billion people lack enough water to simply meet their basic needs, unfortunately in many countries water is scarce or contaminated.
Pure Aqua provides wide range of filtration and economical solutions based on the Maldives' water resources.
Maldives' main water resources are:
- Surface water “is water from river, rain water, lake or fresh water wetland, which can be treated using different methods, such as Ultrafiltration Systems, Media Water Filters, Brackish Water RO.
- Desalination can be used for water from ocean, or sea source, which can be treated using Sea Water Reverse Osmosis Systems; Desalination Systems
- Ground Water or brackish water is from water located in the pore space of soil and rock “Borehole well”, which can be treated using Reverse Osmosis Systems, Media Water Filters, Chemical Dosing, UV Sterilizers.
- Government water supply, which could have high level of hardness or high level of chlorine, can be treated with Water Softeners, Media Water Filters
Pure Aqua manufactures water treatment systems that meet the World Health Organization requirements.
Completed Water Purification Projects for Maldives: