230019 Environmental Soil Chemistry

Detaljer
Inst. for Grundvidenskab   85 %
Inst. for Jordbrugsvidenskab   15 %
Tidligst mulig placeringKandidat 1.år til Kandidat 2. år
VarighedEn blok
 
Pointværdi7.5 (ECTS)
KursustypeKandidatkursus
 
EksamenSluteksamen

skriftlig prøve


Skriftlig auditorieeksamen

Alle hjælpemidler tilladt

Beskrivelse af eksamen: Evaluation of project report (prepared by groups of 2 - 4 students) and 4 hours written exam.

Vægtning: Project report: 33% Written exam: 67% Both the project report and the written examen are evaluated by the internal censor.



13-skala, intern censur

Eksamensdatoer:
02 November 2006
 
Forudsætninger for indstilling til eksamenSubmission of project report
 
Rammer for undervisningThe course comprise lectures, theoretical exercises, computer exercises (equilibrium modelling), project work and one excursion
 
BlokplaceringBlock 1
Ugestruktur: C
 
UndervisningssprogEngelsk
 
Anbefalede forudsætninger250021 Jord, vand og planter
230009 Miljøkemi i biologiske systemer
"Jord, vand og planter" or equivalent "Miljøkemi i Biologiske Systemer" or equivalent.Arealanvendelse, stofbalancer og miljøpåvirkning, Miljømikrobiologi.General knowledge on basic chemistry, physics, mathematics and microbiology. An intro to physical chemistry is an advantage
 
Kompetenceområder
Basic Science
Comprehend spatial and temporal variability of soils
Comprehend the importance of soils as part of ecosystems
Understand and comprehend the molecular mechanisms controlling pollutant fate in soils and sediments
Transfer general principles from physical chemistry, biochemistry and physics in a soil environmental context

Applied Science
Understand soil description and sampling in the field
Comprehend, apply and evaluate common models and procedures used for quantification of soil processes, pollutant fate and intrinsic soil quality measures
Acquire knowledge on the specific behaviour of common soil pollutants for use in control and remediation
Knowledge on instrumental methods used to analyse inorganic and organic soil solids and solutes

Ethics & Values
Ability to discuss the criteria underlying key terms such as "toxic", "pollution", "threshold concentrations" and "quality".
Reflects on the precautionary principle and other principles
 
Kursets målsætning
The objectives of the course are to comprehend and to study i) how soils respond to man-made disturbances, ii) the effiency of soils as "filters" for soil pollutants with focus on sorption, degradation and transport processes, iii) the biogeochemical functions of soils in a global context, and iv) quantification of soil processes for proper assessment, modelling and forecasting the fate of pollutans in soil environments.
 
Kursusindhold
Brief review of soil structure, chemical composition and properties of soil minerals and humic matter. Interactions between abiotic and soil biochemical processes. Soil forming factors and natural soil forming processes comprising acidification, mineral weathering, humification/mineralization, clay migration, podzolization, redox processes and leaching.
Sampling, fractionation and analysis of soil solutes.

Review of pollutants in soil environments with emphasis on biogeochemical properties, monitoring data and mass balances for different pollutants including heavy metals, radionuclides, acids, pesticides, endocrine disruptors, detergents, PAH's, halogenated compounds, veterinary drugs/biomedicine, natural toxins, and anthropogenic nanoparticles. Intro to activity and mode of action of soil enzymes. Gas-water exhange. Complexation and speciation, acid-base reactions, solubility, and hydrolysis in soil solution. Sorption equilibria and kinetics with respect to main groups of soil pollutants. Sorption, ageing, speciation and bioavailability. Mineral stability, dissolution (weathering) and redox processes at the solid-solution interface; redox zonations and sequences. Abiotic degradation reactions at soil particle surfaces. Equilibrium computation software. Degradation pathways, formation of metabolites, and models to quantify degradation and mineralization kinetics. QSAR estimation software. Modelling of water and solute transport. Macropores and colloidal transport in macropores. Cleaning and remediation of soils with emphasis on bioremediation technologies and new environmental technologies for minimising soil pollution. Methods for soil quality assessment. Intro to risk assessment. Linkages between land use, soil quality and water quality.
 
Undervisningsform
Lectures, theoretical exercises and case studies as well as problem-based work on a selected topic. One 1-day excursion comprising examples of soil pollution, soil remediation, land use and groundwater quality and soil quality monitoring. Lectures are based on the textbook used. The topics of the theoretical exercises/cases run in parallel with the topics treated in the lectures. Groups of students work together to discuss and solve the selected problems. The aims of the project work are to train literature and data search, handling of literature data, to train the use of different models and computational tools introduced during the course, and to get detailed knowledge on the fate of a particular pollutant class. The project work is carried out by groups of 2-4 students and it is carried out during 2 weeks at end of the course. The project report is presented orally.
 
Litteraturhenvisninger
Hansen, H.C.B. (ed)(2006) Environmental Soil Chemistry including exercises. Handout notes.

Software for speciation analysis.

Supplementary reading
 
Kursusansvarlig
Hans Christian Bruun Hansen, haha@life.ku.dk, Indsatsområder/VIVA - Viden om Vand, Tlf: 3528
Søren Hansen, sha@life.ku.dk, Institut for Grundvidenskab og Miljø/Agrohydrologi, Tlf: 3528
Peter Engelund Holm, peho@life.ku.dk, Institut for Grundvidenskab/Jordbunds- og miljøkemi, Tlf: 35332414
Carsten Suhr Jacobsen, csj@geus.dk, Institut for Grundvidenskab og Miljø/Jordbunds- og miljøkemi, Tlf: 38142313
 
Deltagerbetaling
100 DKK for participation in the excursion.
 
Studienævn
Studienævn NSN
 
Kursusbeskrivelsesomfang
forelæsninger36
teoretiske øvelser51
forberedelse90
eksamen4
ekskursioner10
kollokvier15

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