Water Course Quality Evolution Near Animal Husbandry Farms

The sum of the chemical, physical, biological, and radiological characteristics of water determine the water quality evolution in water courses. Animal husbandry is one of the main causes of water courses pollution, especially if it does not have a wastewater treatment plant and they are discharged directly into the water course. The water quality determine the treatment technology and costs of water treatment to meet the quality requirements of the users in downstream, and the measures necessary for the protection / improvement of the water quality. An important aspect of the activity of water specialists is to monitor, analyze and forecast the evolution of water quality, especially in sectors where there are significant sources of pollution. In this paper is realized the modeling of the evolution of the water quality of the Crasna River, situated in the north-west part of Romania, using the MIKEbyDHI software, an advanced hydroinformatic tool. The evolution of Crasna River water quality is important because it is a cross-border river and is subject to the Romania - Hungary bilateral conventions and EU directives.