نتایج جستجو برای: water quality modelling

تعداد نتایج: 1400812  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...

Journal: :international journal of environmental research 2015
m.v. kumarasamy

prediction of spatial and temporal variation of water quality is vital for managing pollutantsdisposal into the rivers. depletion of dissolved oxygen (do) takes place due to the consumption of oxygen bymicrobes to digest bio-degradable pollutants which enter a water course. reaeration takes place in a specificrate depending on do deficit. many investigators have formulated models as an alternat...

Journal: :آب و خاک 0
صادقی صادقی یغمایی یغمایی قاسمپوری قاسمپوری

abstract nowadays, measuring water quality is very important for comprehensive management of water resources. suspended sediment is one of the most important water quality factors which greatly affects environment health. however, its measurement needs too much time and money. it was therefore tried in the present study to assess the applicability of modelling relationship between suspended sed...

Journal: :Water 2023

Surface water quality modelling has become an important means of better understanding aquatic and riparian ecosystem processes at all scales, from the micro-scale (e [...]

Journal: :international journal of environmental research 0

sensitivity analysis might be considered as one of inevitable steps in modelling since it would help to determine the behaviour of model, which was developed for further application. sensitivity analysis was not paid much attention in studies that have been conducted for modelling the relationship between stream water quality and land cover except machine learning techniques such as artificial ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1392

gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...

1999
Stefan Heinrich Maier Heinz Maier Tony Woodward Silvio Hrabar

Maintaining water quality in distribution systems has become a prominent issue in the study of water networks. This thesis concentrates on disinfectant and particle counts as two important indicators of water quality. The models discussed in this work are based on data collected by the author. The experimental set-up and procedure are described and observations of particle counts, particle coun...

Journal: Desert 2019
A. Afzali, A. Keshtkar Z. Feizi,

     The main portion of water demands of arid regions like Kashan Plain, Iran supply by groundwater wells. This research was conducted to assess the groundwater quality as well as modelling and mapping groundwater quality in the study area using geosatistics and deterministic techniques. Five water quality parameters, including Electrical Conductivity, Sodium Adsorption Ratio, Total Hardness, ...

Journal: :Marine pollution bulletin 2012
Chris Carroll David Waters Suzanne Vardy David M Silburn Steve Attard Peter J Thorburn Aaron M Davis Neil Halpin Michael Schmidt Bruce Wilson Andrew Clark

Targets for improvements in water quality entering the Great Barrier Reef (GBR) have been set through the Reef Water Quality Protection Plan (Reef Plan). To measure and report on progress towards the targets set a program has been established that combines monitoring and modelling at paddock through to catchment and reef scales; the Paddock to Reef Integrated Monitoring, Modelling and Reporting...

Journal: :Proceedings of the Institution of Civil Engineers - Water Management 2014

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