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NPTEL

Aquatic Geochemistry

NPTEL via Swayam

Overview

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ABOUT THE COURSE:The focus of this course is to develop an understanding of the chemical compositions of natural waters. The physiochemical and biogeochemical processes operating in aqueous systems: equilibrium vs. kinetic controls, redox reactions, aqueous complexes, chemical weathering, etc. Moreover, the application of stable and radiogenic isotope geochemistry used for fingerprinting processes that control water chemistry (rivers, oceans, groundwater) will be discussed. Simple hydrogeochemical modelling techniques will also be introduced for source apportionments, flux calculations, speciation modelling, ecological risk assessments and water quality determination.INTENDED AUDIENCE: MS, M.Sc. & Ph.D. students working on water related research topics. Also relevant for professionals who are working in any government, private, NGO that is addressing water science & researchPREREQUISITES: B.Sc. in any discipline related to Earth Sciences, Environmental Science or B.Tech. Civil Engineering; Water Resource ManagementINDUSTRY SUPPORT: All mining, paper, paints, chemicals, pharmaceuticals, automobile, and textile industries

Syllabus

Week 1: Introduction to Hydrosphere: Water Cycle and Catchment hydrology; Global water challenges, new hydro-chemical concepts, emerging contaminants
Week 2:Composition of Natural Waters, Introduction to Sampling techniques and Instrumentation
Week 3:Basic chemistry concepts, Thermochemical Principles; Equilibrium and Kinetic concepts
Week 4:Acids and Bases; Solubility and Aqueous complexes
Week 5:Redox aqueous reactions; Adsorption desorption reactions
Week 6:Organics in natural waters
Week 7:Introduction to radiogenic and stable isotope geochemistry
Week 8:Stable water isotopes and applications
Week 9:Controls on precipitation and surface water chemistry
Week 10:Controls on ocean water and groundwater chemistry
Week 11:Non-conventional isotope tracers in aquatic systems
Week 12:Hydrogeochemical modelling techniques based on Casestudies.

Taught by

Prof. Soumita Boral

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