Studying the effect of boiler water releasing in rivers on some water properties (Al-Euphrates River at Al-Mussaib thermal power station as case study)'

Abstract

Studying the effect of boiler water released in rivers on some water properties such as density, viscosity was done in this research. Equations of momentum, conversation, turbulence and energy were used with the relation between the temperature and water properties to describe those properties along the study reach. Simplifying of partial equation was done to obtain system of linear equation. Verification of numerical model by conducting comparison of observed data from Euphrates River at Mussaib Thermal Power Station with those computed by the model. The comparison results of density and viscosity show an agreement with using statistical tests such as Chi square and RMSE. The results of the study showed that increasing the bed roughness from 0.04 m to 0.12 m causes a longitudinal retardation of the values of density and viscosity values about (26 and 22%) respectively and vertical advance of these values about (14 and 12% ) respectively. Increasing the water surface slope from (6 cm/km to 12 cm/km) causes a longitudinal advance of density and viscosity values about (19 and 12%) respectively and vertical retardation of these values about (16 and 13%) respectively.

Appraising the eco-health of Tigris River water using pollution indicators and the health risk assessment model

“…The river's water quality is being negatively affected by various anthropogenic and geogenic activities, restricting its use for various purposes (Ustaoglu et al 2020;Nasir et al 2022). Because water quality has become a serious problem and has gained worldwide concern for conservation and protection, monitoring rivers is fundamental for obtaining factual data about their quality and for containing and controlling contamination (Singh et al 2020;Nasir et al 2023). Among the pollutants created by industries, heavy metals are the most outstanding ones.…”