Document Type : Analytical note
Authors
1 Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran
2 Inland Waters Aquaculture Research Center, Iranian Fisheries Science Research Institute (IFSRI), Agriculture Research Education and Extension Organization (AREEO), Bandar-e Anzali, Iran
Abstract
Today, healthy drinking water has become an important problem in many countries around the world. Therefore, the United Nations considers attention to this issue as a necessity for achieving sustainable development goals. Although, at present, various physical, chemical and biological methods are used to purify water in many parts of the world, however, use of easy, inexpensive and efficient methods has a special priority in developing countries. Today, one of the most efficient and inexpensive ways to achieve clean water is promoting the use of Slow Sand Filters (SSF), inspired by nature. The present study was conducted with the aim of investigating the different aspects of using this method and its effectiveness in water treatment. The literature review showed that there are many requirements for easy, cost-effective and useful application of sand filtration, especially in rural areas where access to water treatment equipment is difficult. These filters are easily made from local materials and do not require expensive chemicals. On the other hand, the operation of these filters is easy to set up and their maintenance is not complicated. According to the information of this study, sand filtration can be used as a nature-based approach for water purification in different countries, especially developing countries.
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