Elza Bontempi
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Eco-Materials

Municipal solid waste stabilization

Elza Bontempi was the scientific responsible of COSMOS and COSMOS-RICE projects, devoted to stabilization of fly ash and realization of demonstration plant, to prove the process industrial feasibility.
COSMOS inert was proposed for re-utilisation as secondary raw material, in several matrices, then preserving natural resources and RAW MATERIALS.

COSMOS inert was obtained by using only waste and by-product (with no addition of commercial chemicals).



COSMOS project video

Video di YouTube





A paper published on 2016 analysed data about publication from 1999 to 2015 (realized by 90 countries) on waste-to-energy incineration.



It shows that China is the most productive country with 558 articles, followed by the Japan (404) and USA (283).  
However, Italy ranked the first in terms of h-index (40), indicating that it had a high level of influence in the field.


Main publications concerning fly ash stabilization:
Guarienti, M., Cardozo, S.M., Borgese, L., Lira, G.R., Depero, L.E., Bontempi, E., Presta, M.
COSMOS-rice technology abrogates the biotoxic effects of municipal solid waste incinerator residues
(2016) Environmental Pollution, 214, pp. 713-721. 
DOI: 10.1016/j.envpol.2016.04.053

Benassi, L., Bosio, A., Dalipi, R., Borgese, L., Rodella, N., Pasquali, M., Depero, L.E., Bergese, P., Bontempi, E.
Comparison between rice husk ash grown in different regions for stabilizing fly ash from a solid waste incinerator (2015) Journal of Environmental Management, 159, pp. 128-134. Cited 3 times.
DOI: 10.1016/j.jenvman.2015.05.015

Ponsot, I., Bernardo, E., Bontempi, E., Depero, L., Detsch, R., Chinnam, R.K., Boccaccini, A.R.
Recycling of pre-stabilized municipal waste incinerator fly ash and soda-lime glass into sintered glass-ceramics
(2015) Journal of Cleaner Production, 89, pp. 224-230.
DOI: 10.1016/j.jclepro.2014.10.091

Benassi, L., Franchi, F., Catina, D., Cioffi, F., Rodella, N., Borgese, L., Pasquali, M., Depero, L.E., Bontempi, E.
Rice husk ash to stabilize heavy metals contained in municipal solid waste incineration fly ash: First results by applying new pre-treatment technology
(2015) Materials, 8 (10), pp. 6868-6879.
DOI: 10.3390/ma8105346

Bilo, F., Moscoso, S., Borgese, L., Delbarba, M.V., Zacco, A., Bosio, A., Federici, S., Guarienti, M., Presta, M., Bontempi, E., Depero, L.E.
Total reflection X-Ray fluorescence spectroscopy to study Pb and Zn accumulation in zebrafish embryos
(2015) X-Ray Spectrometry, 44 (3), pp. 124-128.
DOI: 10.1002/xrs.2588

Bosio, A., Zacco, A., Borgese, L., Rodella, N., Colombi, P., Benassi, L., Depero, L.E., Bontempi, E.
A sustainable technology for Pb and Zn stabilization based on the use of only waste materials: A green chemistry approach to avoid chemicals and promote CO2 sequestration
(2014) Chemical Engineering Journal, 253, pp. 377-384.
DOI: 10.1016/j.cej.2014.04.080

Guarienti, M., Gianoncelli, A., Bontempi, E., Moscoso Cardozo, S., Borgese, L., Zizioli, D., Mitola, S., Depero, L.E., Presta, M.
Biosafe inertization of municipal solid waste incinerator residues by COSMOS technology
(2014) Journal of Hazardous Materials, 279, pp. 311-321.
DOI: 10.1016/j.jhazmat.2014.07.017

Rodella, N., Bosio, A., Dalipi, R., Zacco, A., Borgese, L., Depero, L.E., Bontempi, E.
Waste silica sources as heavy metal stabilizers for municipal solid waste incineration fly ash
(2014) Arabian Journal of Chemistry, . Article in Press. 
DOI: 10.1016/j.arabjc.2014.04.006

Zacco, A., Borgese, L., Gianoncelli, A., Struis, R.P.W.J., Depero, L.E., Bontempi, E.
Review of fly ash inertisation treatments and recycling
(2014) Environmental Chemistry Letters, 12 (1), pp. 153-175. 
DOI: 10.1007/s10311-014-0454-6

Bosio, A., Rodella, N., Depero, L.E., Bontempi, E.
Rice husk ash based composites, obtained by toxic fly ash inertization, and their applications as adsorbents
(2014) Chemical Engineering Transactions, 37, pp. 631-636. 
DOI: 10.3303/CET1437106

Besco, S., Bosio, A., Brisotto, M., Depero, L.E., Lorenzetti, A., Bontempi, E., Bonora, R., Modesti, M.
Structural and mechanical characterization of sustainable composites based on recycled and stabilized fly ash
(2014) Materials, 7 (8), pp. 5920-5933. 
DOI: 10.3390/ma7085920

Rodella, N., Bosio, A., Zacco, A., Borgese, L., Pasquali, M., Dalipi, R., Depero, L.E., Patel, V., Bingham, P.A., Bontempi, E.
Arsenic stabilization in coal fly ash through the employment of waste materials
(2014) Journal of Environmental Chemical Engineering, 2 (3), pp. 1352-1357. 
DOI: 10.1016/j.jece.2014.05.011

Bosio, A., Gianoncelli, A., Zacco, A., Borgese, L., Rodella, N., Zanotti, D., Depero, L.E., Siviero, G., Cinosi, A., Bingham, P.A., Bontempi, E.
A new nanotechnology of fly ash inertization based on the use of silica gel extracted from rice husk ash and microwave treatment
(2014) Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanoengineering and Nanosystems, 228 (1), pp. 27-32.
DOI: 10.1177/1740349913490683 Besco, S., Brisotto, M., Gianoncelli, A., Depero, L.E., Bontempi, E., Lorenzetti, A., Modesti, M. Processing and properties of polypropylene-based composites containing inertized fly ash from municipal solid waste incineration (2013) Journal of Applied Polymer Science, 130 (6), pp. 4157-4164. DOI: 10.1002/app.39692 Bosio, A., Rodella, N., Gianoncelli, A., Zacco, A., Borgese, L., Depero, L.E., Bingham, P.A., Bontempi, E. A new method to inertize incinerator toxic fly ash with silica from rice husk ash (2013) Environmental Chemistry Letters, 11 (4), pp. 329-333. DOI: 10.1007/s10311-013-0411-9 Struis, R.P.W.J., Pasquali, M., Borgese, L., Gianoncelli, A., Gelfi, M., Colombi, P., Thiaudière, D., Depero, L.E., Rizzo, G., Bontempi, E. Inertisation of heavy metals in municipal solid waste incineration fly ash by means of colloidal silica-a synchrotron X-ray diffraction and absorption study (2013) RSC Advances, 3 (34), pp. 14339-14351. DOI: 10.1039/c3ra41792a Zacco, A., Gianoncelli, A., Ardesi, R., Sacrato, S., Guerini, L., Bontempi, E., Tomasoni, G., Alberti, M., Depero, L.E. Use of colloidal silica to obtain a new inert from municipal solid waste incinerator (MSWI) fly ash: First results about reuse (2012) Clean Technologies and Environmental Policy, 14 (2), pp. 291-297. DOI: 10.1007/s10098-011-0401-1 Bontempi, E., Zacco, A., Borgese, L., Gianoncelli, A., Ardesi, R., Depero, L.E. A new method for municipal solid waste incinerator (MSWI) fly ash inertization, based on colloidal silica (2010) Journal of Environmental Monitoring, 12 (11), pp. 2093-2099. DOI: 10.1039/c0em00168f

Coal fly ash (CFA) reuse

Fly ashes are recovered as sustainable materials as a possible adsorbent for anionic surfactant (Embodied energy as key parameter for sustainable materials selection: the case of reusing coal fly ash for removing anionic surfactants. Journal of Cleaner Production 2016).
Activated carbons are frequently used in water purification. However, in view of its high production costs and the complexity of its regeneration, the research of low cost adsorbents is today quite desirable. Research activity in this field moves toward the substitution of activated carbon with low cost materials.
To evaluate the environmental sustainability of a specific material, the CO2 footprint is generally the main parameter considered. Moreover, the embodied energy analysis is an efficacious and potent method to employ. Producing materials from ores and feedstock requires energy. It is defined the “embodied energy” and includes direct and indirect energy consumed during the production process of 1 Kg kg of a specific material.