Search results
Results from the WOW.Com Content Network
The National Water Supply and Drainage Board (commonly abbreviated as NWSDB) is the National Organization responsible for the provision of safe drinking water and facilitating the provision of sanitation to the people in Sri Lanka. The organization had its beginning as a subdepartment under the Public Works Department for water supply and drainage.
Sri Lanka Muslim Congress: 12 January 2015 - 15 November 2019 Maithripala Sirisena: Mahinda Rajapaksa: Sri Lanka Podujana Peramuna: 22 November 2019 - 12 August 2020 Gotabaya Rajapaksa: Vasudeva Nanayakkara: Democratic Left Front: 12 August 2020 - Gotabaya Rajapaksa: Keheliya Rambukwella: Sri Lanka Podujana Peramuna: 23 May 2022 - 19 January ...
Sri Lanka Freedom Party: 23 April 2010 - 9 January 2015 Mahinda Rajapaksa: Ministry of Irrigation and Water Resources Management Duminda Dissanayake: Sri Lanka Freedom Party: 12 January 2015 - 22 March 2015 Maithripala Sirisena: Ministry of Irrigation and Water Resources Management Gamini Vijith Vijithamuni Soysa: Sri Lanka Freedom Party
Reservoirs in Sri Lanka (1 C, 20 P) Pages in category "Water supply and sanitation in Sri Lanka" The following 3 pages are in this category, out of 3 total.
A catchment site within the system is referred to as a wewa (වැව) in Sinhala, and this term is translated into English as "tank". [7]These tanks are connected in a series, referred to as a cascade, so that an ephemeral waterflow can be used, stored for future use, or conveyed elsewhere. [7]
A chain pump is made of an endless chain carrying a series of discs that descend into the water, and then ascend inside a tube, carrying with them a large quantity of water. They are a simply made, old hand-powered pumping technology [ 10 ] In the 18th century they were used as ship's bilge pumps.
Due to the rotation, water is then picked up by the tube and pumped upwards in the hose. The coil pump, as many low lift pumps, is commonly used for irrigation purposes and for drainage of lands. It is currently still used by farmers in Asia. [1] The coil pump was built as an alternative to the Archimedean screw. Unlike the Archimedean screw ...
Sri Lanka is pockmarked with many irrigation dams, with its water resource distributed across nearly the entirety of the island for agricultural purposes via artificial canals and streams. Utilization of hydro resources for agricultural production dates back to the pre-Colonial era , with the current crop production now largely dependent on ...