Heavy metals and environment: old/new questions and tentative answers
Laura Eleonora DeperoChem4Tech Lab
CHEM
4TECH LAB
What are HM? CH
EM4TECH LAB
METALS
Where?CH
EM4TECH LAB
PhaseChemical stateSizeShapeMatrices
Why are becoming so important?CH
EM4TECH LAB
CHEM
4TECH LAB
How much?CH
EM4TECH LAB
Supply risk!
https://ec.europa.eu/growth/sectors/raw-materials/policy-strategy_it
HEAVY RARE EARTH ELEMENTS
LIGHT RARE EARTH ELEMENTS
Nb Sb
In
Cr
W
Platinum group metals
Au
CHEM
4TECH LAB
Medical E-‐waste contains valuable resources which offer opportuni7es for
urban mining and job crea7on CHEM
4TECH LAB
CHEM
4TECH LAB
CHEM
4TECH LAB
prof. Elza Bontempi
Fly ashChimney
Flue gas cleaning
Fly ash
Furnace
Bo?om ash
Energy conversion
Solid waste
Bottom ash
CHEM
4TECH LAB
The patent was trasferred to VELAWORKS
CHEM
4TECH LAB
https://www.youtube.com/watch?v=aTCl6EsLjzs
How to measure?
1 10-‐3 ppm ppb ppt
1km2 10dam2 1m2 10cm2 1mm2
1000 yrs 1 yr ≈9 h ≈31 s ≈31msCHEM
4TECH LAB
CHEM
4TECH LAB
XRF TECHNIQUES TO ASSESS THE ENVIRONMENTAL POLLUTION CH
EM4TECH LAB
Total reflection X-ray Fluorescence (TXRF)in the lab...
in situ....
ppb and ppm range detection limits
Most of the environmental matrices can be measured!
CHAIR : Laura E. Depero
CHEM
4TECH LAB
Project Leader: Laura E. Depero
CHEM
4TECH LAB
Round robin tests on water samplesCH
EM4TECH LAB
"Surface Chemical Analysis — Total Reflection X-Ray fluorescence
analysis of water samples”
Project Leader dr. Laura Borgese, ITALY (UNI)CH
EM4TECH LAB
The monitoring of elemental content in foodstuff is of great importance for food manufacturing industry as well
as for consumers.
HEALTHsafety
ORIGINtraceability
FOOD & HEALTHCH
EM4TECH LAB
CHEM
4TECH LAB
Beverages(Tea
LIQUIDS
SOLIDS
Vegetables(&(Fruits(
Cereals(
Supplements(
Wine
Food Reference Materials
Tea leaves Pasta Rice Oat Barley
Chocolate
Hygiene and healthAuthenticity and originTechnological qualityCompliance to Laws
In collaboration with
CHEM
4TECH LAB
TXRF Analysis of WINE Safety'&'Quality'
Assessment'of'poten3ally'toxic'elements'content' ''Vineyard'treatment'(Cu)''
''Produc3on'equipment'(Pb,'Ni,'Cr)''
''Partly'endogenous'(Zn)''
Evaluate'TXRF'suitability'for'rou3ne'elemental'analysis'of'wine'CH
EM4TECH LAB
General objective: to enhance scientific excellence in the field of food quality & safety by promoting metrology in food and nutrition.
CHEM
4TECH LAB
Different application fields: ✦ agrofood sustainable development, ✦ food quality and safety, ✦ food traceability and authenticity,✦ environmental safety, ✦ human health.
h?p://www.smartsoluMonsweb.it
CHEM
4TECH LAB
."
spin off founded in Sept. 2014 by researchers of Chem4Tech.
https://www.youtube.com/watch?v=0l8DoMWB-IY
P.S. other projects related to materials and environmental analysis are just started and we will
be happy to discuss with you.
Thank you!
Welcome to visit our lab!
CHEM
4TECH LAB
