November 14th 2014 Management of brownfields Integration of technologies Annemieke Marsman
Leading top institute November 14th 2014
Our mission November 14th 2014
Societal themes November 14th 2014
Deltares software used in more than 100 countries Open software establishes sharing community Open software System informatics November 14th 2014
Soil challenge Soil degradation a world wide challenge! Wikipedia Soil Sealing in EU: -loss of important soil functions : 375 ha/day lost November 14th 2014
Since 1950: surface area cities increased 78%, only 33% population -Urban expansion 1-2 % per year -Urban sprawl around metropolitan regions -Decreasing settlement density More and more brownfields Urbanisation and structural change cause brownfields Source: EEA November 14th 2014
Urbanisation in the world November 14th 2014 Yangtze River Delta, 115 million people as of 2013, of which an estimated 83 million is urban A land pollution census conducted by the Ministry of Environmental Protection from 2007 to 2010 found that the soil quality is degrading in the country's economically well-off regions, such as the Pearl River Delta, Yangtze River Delta and Pan-Bohai Bay area. Source: UNEP-GRID Sioux Falls, population data SEDAC 2010
Yangtze River Delta Yangtze ri November 14th 2014 Yangtze River Delta by night
Where do you want to live? Safe Healthy Prosperous Social stability Fun, beautiful Chalenging November 14th 2014
Brownfields are… sites that: have been affected by former uses of the site or surrounding land; are derelict or underused; are mainly in fully or partly developed urban areas; require intervention to bring them back to beneficial use; and may have real or perceived contamination problems (CABERNET) November 14th 2014
Brownfield lifecycle November 14th 2014
Identify synergistic sequential & parallel technology combinations Technology trains : 1.Energy – Water: ATES + bioremediation 2.Soil – building materials: carbonation of industrial soil 3.Water – Soil: Eco/bio grout November 14th 2014
Technology train November 14th 2014
Modelling The importance of modeling Understanding the soil/water system Risk assessment Prediction of efficiency of measures: optimization November 14th 2014
Groundwater age (years) Examples at 3 different levels Regional, gridresolution = 100x100m Local, gridresolution = 10x10m Nationwide, gridresolution = 250x250m November 14th 2014
What is iMOD-MT3DMS ? All model input and output is in IDF and IPF formats, and can therefore be constructed, visualized and edited in the iMOD user interface Fast and easy model setup using the iMOD runfile Clipping and scaling Runfile November 14th 2014
2 transport models using 1 flow model November 14th 2014 FULL FLOW MODEL EXTENT / LARGE TRANSPORT MODEL SMALL TRANSPORT MODEL SYLVAN LAKE MODEL
Problem 1: regional diffuse pollution Thin model layers on top to accommodate sharp concentration gradients near soil surface Hypothetical contaminant: Tracer with fixed concentration of 100 mg/L in upper model layer Horizontal grid cell size: 250x250m November 14th 2014
Problem 2: local, deep groundwater pollution Thin model layers at depth of pollution Horizontal grid cell size: 100x100m Imaginary plume at 750m b.s.l. November 14th 2014
Model results: diffuse pollution 0 years 50 years 100 years November 14th 2014
Model results: local, deep groundwater pollution 0 years 100 years 1000 years November 14th 2014
Deltares project “Pilot Botlek” in Port of Rotterdam: Mega Site Approach supported by contaminant transport modelling MT3DMS module in iMOD 3D multispecies reactive solute transport modelling November 14th 2014
iMOD-MT3DMS Port of Rotterdam November 14th 2014 fresh groundwater saline groundwater fresh groundwater 3D CONTAMINANT PLUME INSPECTION IN iMOD
Questions…? November 14th