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Trancone G, Spasiano D, Race M, Luongo V, Petrella A, Pirozzi F, Fratino U, Piccinni AF. A combined system for asbestos-cement waste degradation by dark fermentation and resulting supernatant valorization in anaerobic digestion. Chemosphere 2022; 300:134500. [PMID: 35395263 DOI: 10.1016/j.chemosphere.2022.134500] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/14/2022] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
The use of biological processes for the treatment of asbestos cement waste (ACW) has gained interest in recent years. Nevertheless, this methodology is not yet consolidated because of the incomplete ACW conversion during the biological treatment and the consequent need for further treatments that generally require a high amount of energy and chemicals. In this study, the efficiency of both mesophilic and thermophilic dark fermentation (DF) fed with glucose in fed-batch conditions was assessed for ACW biological treatment. Both thermophilic and mesophilic DF of glucose resulted in a partial conversion of glucose into organic acids that successfully degraded all the asbestos fibers contained in an ACW sample. A hydrogen-rich biogas was produced as well: at the end of the mesophilic DF treatment 0.14 LH2 gglucose-1 were obtained. In addition, the anaerobic digestion (AD) of the DF supernatants led to the production of 0.38 LCH4 gCOD-1.
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Affiliation(s)
- G Trancone
- Department of Civil, Building and Environmental Engineering, University of Naples Federico II, Via Claudio, 21, 80125, Napoli, Italy
| | - D Spasiano
- Department of Civil, Environmental, Land, Building Engineering and Chemistry, Polytechnic University of Bari, Via E. Orabona, 4, 70125, Bari, Italy.
| | - M Race
- Department of Civil and Mechanical Engineering, Università di Cassino e del Lazio Meridionale, Viale dell'Università, 03043, Cassino, Italy
| | - V Luongo
- Department of Mathematics and Applications "Renato Caccioppoli", University of Naples Federico II, Via Cintia, Monte S. Angelo, Napoli, 80126, Italy
| | - A Petrella
- Department of Civil, Environmental, Land, Building Engineering and Chemistry, Polytechnic University of Bari, Via E. Orabona, 4, 70125, Bari, Italy
| | - F Pirozzi
- Department of Civil, Building and Environmental Engineering, University of Naples Federico II, Via Claudio, 21, 80125, Napoli, Italy
| | - U Fratino
- Department of Civil, Environmental, Land, Building Engineering and Chemistry, Polytechnic University of Bari, Via E. Orabona, 4, 70125, Bari, Italy
| | - A F Piccinni
- Department of Civil, Environmental, Land, Building Engineering and Chemistry, Polytechnic University of Bari, Via E. Orabona, 4, 70125, Bari, Italy
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