Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Mihaela Alexandra ROTARU, Loredana VĂDUVA, Olimpia Alina IORDĂNESCU, Ioan PETROMAN
The pollution of surface or underground water sources is done by physical, chemical, and biological means, the ecological effects manifesting themselves through the modification of abiotic factors and implicitly all trophic levels. Evacuated unprocessed, untreated and accidentally ending up in emissions or on the ground, the liquid wastes contribute to the heating of the water and the decrease of oxygenation degree determined by the acceleration of the organic mass decomposition phenomena and on the soil by degrading its quality by increasing the amount of nitrogen. These effects the more visible in the researched area, Arad County in the vicinity of swine farms and especially in the area of former treatment plants belonging to disused farms, where the waters of the area, due to the activity of aerobic microorganisms, flourished and some species of fauna and flora even disappeared if the discharged faeces, after a certain processing the CBO5 parameter had 45.1-55.0 mg·L-1.
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