M. Hanelore
Monday 5 August 2013 by Libadmin2013

References: 13th SGEM GeoConference on Water Resources. Forest, Marine And Ocean Ecosystems, www.sgem.org, SGEM2013 Conference Proceedings, ISBN 978-619-7105-02-5 / ISSN 1314-2704, June 16-22, 2013, 409 - 416 pp


Water is a vital element on earth, no activity is possible without the presence of water both for human civilization and for industry and agriculture.
In time, the development of society, through population growth and development of agriculture and various industries have increased water uses, but used and returned water has not the same quality as that taken prior to use, the water quality and quantity has become a real problem worldwide.
Wastewater also evolved, enriching itself every day with different substances (detergents) and those not treated or inadequately treated once in emissary causes major imbalances in the ecosystems. Although water has the ability to self-purificate, in some cases contamination is done quickly and to a much higher degree that exceeds the capacity of water to recover.
Self-purification is the process in which balance restoration of the aquatic environment takes place through simultaneous participation or in some sequence of the physical and chemical factors, biological, hydraulic and morphological characteristics of the river.
An integrated analysis of these factors gives us complex information about water quality and in developing measures to help remedy its quality or to prevent degradation. [3]

Keywords: water self-purification, water ecosystems, integrated approach, surface water, aquatic organisms