Drought reduces the quantity and quality of water resources ultimately increases risk agricultural activities at farm level. Therefore, by developing risk-based economic models, effects changes in on farmers' decisions should be examined. In this regard, drought farmers Qazvin Plain Irrigation Network have been evaluated. For purpose, firstly, river flow was simulated using Qual2k model 1998–20...

Background: Qual2k is a stream water quality model and was used to evaluate the water quality of the Kine-Vars River and assess the response of the river to nutrient management strategies. Methods: For that purpose, 7 sample stations were selected and surface water samples were collected in the winter and summer of 2012 and were analyzed for temperature, dissolved oxygen, biological oxygen dem...

Karkheh river is located in southwestern of Iran. Industrial and agricultural activities around the river contaminate it through its path. Water quality modeling from upstream of Shoosh city to downstream was simulated by QUAL2K model. In this study, we investigated how best to manage the quality of Karkheh river to be done. Nine parameters including BOD, COD, DO, PH, turbidity, nitrate, phosph...

nowadays, problems and barriers to supply adequate water and also environmental issues have caused wastewater treatment (wwt) to be considered a high priority. in light of high costs of wwt, using natural capacities to reduce pollution could be potentially significant. in this study, the impact of varying temperature and channel roughness have been investigated on the wastewater quality paramet...

In Egypt, the Water Quality of fresh waterways, especially those receiving wastewater from agricultural drainage such as El-Salam Canal is every, now, and then, precarious for some water use. Although, Egypt relies on this marginal quality in order to cover resulting gap between needs supply. The reuse appears be one most promising, practical, economical means increasing Egyptian budget which G...

The runoff of suspended solids and nutrients from land into the nation’s lakes and rivers can have severe impacts on the health of these systems and their uses. Highfrequency environmental data from sensors can provide insight into fundamental biogeochemical processes that dictate water quality and provide regulators with valuable knowledge on how to manage critical resources. The goal of this ...