LE ROLE DE LA VASE DANS L’ACCELERATION DE L’EUTROPHISATION DES EAUX DE BARRAGES. ETUDE EXPERIMENTALE
Journal Title: Larhyss Journal - Year 2014, Vol 19, Issue 19
Abstract
The eutrophication of water of dams is the consequence of an excessive wealth of nutritive elements in particular phosphorus and the nitrogen, thus causing an anarchistic development of the algae. It results a deterioration from the quality of the water which rough which affects its uses of which in particular that of the production of drinking water. Can the presence of the mud especially have an effect in accelerating eutrophication of water dams’ when it is known that the silting is considerable in the North Africa area? To answer this interrogation, we proceeded to a series of experiments consisting with the installation of five vats of 12 liters each one filled with water of tap and into which we introduced muds of two dams of different qualities. The evolution of the physical parameters (temperature, pH, turbidity) and chemical (phosphate, total nitrogen and silicate) was surveyed during 5 months. The results show that sediments serve as a vehicle for nutrients that cause the deposition of organic matter resulting from the degradation of plant and animal species of the aquatic environment, causing a change in pH, depletion of the medium silicates, an increase of evaporation, nitrogen and phosphorus are also included in the composition of the living cell. The temperature is very important because the appearance of algae was observed at a temperature of 20 °C.
Authors and Affiliations
BENSAFIA D. | Département des sciences de l’eau et de l’environnement, Faculté des sciences de l’ingénieur, Université Saad Dahlab-Blida 9000, Algérie, REMINI B. | Laboratoire Larhyss de Biskra, Département des sciences de l’eau et de l’environnement, Faculté des sciences de l’ingénieur, Université Saad Dahlab-Blida 9000, Algérie
Keywords
Related Articles
- EP ID EP15097
- DOI -
- Views 355
- Downloads 13
TECHNIQUES FOR DETECTING THE PROGRESS OF THE LEAKS IN DAMS AND OTHER ARTIFICIAL RESERVOIRS
The majority of dams and reservoirs in operation have leakage problems which are very expensive to repair because the diagnosis causes through conventional methods is often inadequate. In addition, they can jeopardize...
QUALITE BACTERIOLOGIQUE DE L'EAU POTABLE DES DIFFERENTS RESERVOIRS ET CHEZ LES CONSOMMATEURS DE LA COMMUNE DE TIPAZA ALIMENTES PAR LA STATION DE SIDI AMAR A PARTIR DE L'EAU DE SURFACE DU LAC-BARRAGE DE BOUKOURDANE
The scope of the present study is the evaluation of water quality of the surface water from the Boukourdane Lake dam. The drinking water resulted from the Sidi Amar treatment station, tanks and water from consumers in...
THE USE OF A NEURAL NETWORK TECHNIQUE FOR THE PREDICTION OF SLUDGE VOLUME INDEX IN MUNICIPAL WASTEWATER TREATMENT PLANT
Modeling Sludge volume index of activated sludge process in municipal WWTP is a difficult task to accomplish due to the high nonlinearity of the plant and the non-uniformity and variability of influent quantity, qualit...
ANALYSIS OF THE EVOLUTION OF THE MEDITERRANEAN SEA LEVEL FROM HISTORICAL TIDE GAUGE DATA
The historical data series of 34 tide gauges located along the Mediterranean coast were analyzed using statistical trend tests. The application of the Man Kendall test and its version which takes into account the pres...
THE BENI HAROUN RESERVOIR (ALGERIA) IS IT THREATENED BY SILTATION?
In arid and semi-arid regions such as Algeria, siltation is a hydraulic problem which poses enormous problems to managers of dams including the reduction in capacity. This article discusses the silting of the Beni Haro...