Risk Assesment and Soil Remediation

Code:

MEMG0018

Acronym:

ARRS

Keywords
Classification	Keyword
OFICIAL	Technologies, Applied Sciences, Project

Instance: 2011/2012 - 1S

Active?	Yes
Web Page:	http://moodle.fe.up.pt/1112/course/view.php?id=2818
Responsible unit:	Mining Engineering Department
Course/CS Responsible:	Master in Mining and Geo-Environmental Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MEMG	7	Plano de estudos oficial a partir de 2008/09	2	-	6	56	162

Teaching language

Portuguese

Objectives

The aims of this course unit are:
- Knowledge: recall knowledge related to multi-phase equilibrium, environmental chemistry and eco-toxicology;
- Understanding: To identify, recognize and characterize situations of soil and aquifer contamination;
- Application: To distinguish the field of application of different technologies; To select the technologies adapted to each situation;
- Analysis: To carry out a simple risk analysis; To define the investigation to carry out a corrective action plan;
- Synthesis: To set the methodology of a corrective action plan; Dimensioning units of soil and/or groundwater remediation.

Program

Review of basic environmental chemistry concepts;
Transport and destination of subsoil contaminants;
Introduction to risk analysis and brief notions of ecotoxicology;
Containment barriers and permeable reactive barriers;
Natural attenuation as way of rehabilitation;
Remediation techniques of contaminated soils with petroleum products: agrarian techniques, bio piles, soil ventilation, bio-ventilation, air sparging, natural attenuation, in-situ bioremediation, multi-phase extraction, low temperature thermal desorption;
Remediation techniques of contaminated soils with heavy metals: electrokinetics, phytoremediation, soil washing, in situ soil washing;
Underground water treatment: In-situ chemical treatment;
Advanced technologies: supercritical fluid extraction.

Mandatory literature

António Fiúza; Protecção e reabilitação de solos e aquíferos contaminados, 2004

Complementary Bibliography

Grasso, Domenic; Hazardous waste site remediation. ISBN: 1-56670-056-6

Teaching methods and learning activities

In order to understand the division of contaminants by the different phases of soil constituents, it is firstly analysed the equilibrium in multi-phase systems. Then are analysed transport and destination systems of soil contaminants.
Basic concepts of quantitative risk analysis are introduced, since remediation can only be carried out if there is a risk. Afterwards are analysed a set of remediation techniques of contaminated soils and aquifers in order to cover several objectives: they are widely used, some are in-situ and other off-site, they are of physical, chemical and biological source which enable the treatment of several types of contaminants: organic and heavy metals.
In practical classes will be solved problems, which will illustrate complex and real situations.

Evaluation Type

Distributed evaluation with final exam

Eligibility for exams

To be admitted to exams, students have to attend 75% of theoretical and practical classes.

Calculation formula of final grade

Grade of the exam

Examinations or Special Assignments

Not applicable

Classification improvement

Students may improve their grades by attending a recurso (resit) exam.

Observations

This course unit is complemented by e-learning module.