Water quality modeling of river using Qual2kw model

اکبری نیاری, موسی and رمضانی مقدم, جواد and عزیزی مبصر, جوانشیر and نیک پور, محمد رضا Water quality modeling of river using Qual2kw model. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

Rivers are as one of the most important sources of supply and water conveyance in the agriculture, industrial and urban sections. The maintenance of water quality is essential in order to provide drinking water, promoting of recreational uses and creating a suitable ecosystem for the fish. Therefore, it is important to be aware of the process of water changes in the rivers with identification of the main causes of pollution. The first step in river protection process is the comprehensive awareness of its qualitative changes. In this research, QUAL2Kw model was used for qualitative simulation of Balkhli-Chai River in Ardabil. In order to implement the model, the information provided by Environmental Department of Ardabil province in 2017-2018 was prepared. The data were divided into two sections: the first part (October 2017) was used to calibrate the model and the second part (June 2018) was used to validate the model. The results showed that the computational values are well-matched with observational values and the relative error percentage for nitrate and PH was less than 13%.

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