Publications

Authors:

Valentino, F; Gottardo, M; Micolucci, F; Pavan, P; Bolzonella, D; Rossetti, S; Majone, M

Title:

Organic Fraction of Municipal Solid Waste Recovery by Conversion into Added-Value Polyhydroxyalkanoates and Biogas

Year:

2018

Type of item:

Articolo in Rivista

Tipologia ANVUR:

Articolo su rivista

Language:

Inglese

Format:

A Stampa

Referee:

Sì

Name of journal:

ACS SUSTAINABLE CHEMISTRY & ENGINEERING

ISSN of journal:

2168-0485

N° Volume:

6

Number or Folder:

12

Page numbers:

16375-16385

Keyword:

volatile fatty acids, poly-hydroxy-alkanoates, anaerobic digestion, food waste, organic fraction of municipal solid waste

Short description of contents:

The integrated-multistage process proposed herein is a practical example of a biorefinery platform in which the organic fraction of municipal solid waste (OFMSW) is used as a valued source for polyhydroxyalkanoates (PHA) and biogas production. Technical and economical feasibilities of this approach have been demonstrated at pilot-scale, providing a possible upgrade to traditional biowaste management practices, presently based on anaerobic digestion (AD). A pH-controlled OFMSW fermentation stage produced a liquid VFA-rich stream with a high VFA/CODSOL ratio (0.90 COD/COD) that was easily used in the following aerobic stages for biomass and PHA production. The solid fraction was valorized into biogas through AD, obtaining energy and minimizing secondary flux waste generation. The reliable biomass enrichment was demonstrated by a stable feast-famine regime and supported by microbial community analysis. The selected consortium accumulated PHA up to 55% wt. Compared to the traditional AD process in an urban scenario of 900000 AE, the integrated approach for OFMSW valorization is preferable, and it is characterized by an electrical energy production of 85.7 MWh/d and 1.976 t/d as PHA productivity. The proposed process was also evaluated as economically sustainable if the PHA is marketed from 0.90 €/kg as the minimum threshold to a higher market price. © 2018 American Chemical Society.

Product ID:

106983

Handle IRIS:

11562/991764

Last Modified:

November 10, 2022

Bibliographic citation:

Valentino, F; Gottardo, M; Micolucci, F; Pavan, P; Bolzonella, D; Rossetti, S; Majone, M, Organic Fraction of Municipal Solid Waste Recovery by Conversion into Added-Value Polyhydroxyalkanoates and Biogas «ACS SUSTAINABLE CHEMISTRY & ENGINEERING» , vol. 6 , n. 12 , 2018 , pp. 16375-16385

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