Co-hydrothermal carbonization of swine manure and lignocellulosic waste: a new strategy for the integral valorization of biomass wastes
Entity
UAM. Departamento de Ingeniería QuímicaPublisher
ElsevierDate
2023-07-22Citation
10.1016/j.wasman.2023.07.018
Waste Management 169 (2023): 267-275
ISSN
0956-053X (print)DOI
10.1016/j.wasman.2023.07.018Funded by
Authors greatly appreciate funding from Spain’s MICINN (PID2019- 108445RB-I00), MINECO (PDC2021-120755-I00 and TED2021- 130287B-I00), Madrid Regional Government (Project S2018/EMT4344), and Grupo Kerbest Company. R.P. Ipiales acknowledges the financial support from the Community of Madrid (IND2019/ AMB17092) and Arquimea Agrotech CompanyProject
Gobierno de España. PID2019- 108445RB-I00; Gobierno de España. PDC2021-120755-I00Editor's Version
https://doi.org/10.1016/j.wasman.2023.07.018Subjects
Anaerobic digestion; Co-hydrothermal carbonization; Energy recovery; Garden and park waste; Process water valorization; Swine manure; QuímicaRights
© 2023 The AuthorsEsta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
Abstract
Co-hydrothermal carbonization (co-HTC) is a promising strategy to improve hydrothermal carbonization (HTC) of low-quality wastes. HTC of swine manure (SM), with high N (2.9 wt%), S (0.7 wt%) and ash (22.6 wt%) contents, as well as low C (35.6 wt%) and higher heating value (HHV; 14.3 MJ kg−1), resulted in a hydrochar with unsuitable characteristics as a solid fuel. Co-HTC of SM and garden and park waste (GPW) improved hydrochar properties (C content (43 – 48 wt%) and HHV (18 – 20 MJ kg−1), and decreased N (∼2 wt%), S (<0.3 wt%) and ash (<15 wt%) content. A high GPW ratio (>50 wt%) during co-HTC resulted in a hydrochar similar to that obtained from GPW. The co-HTC increased nutrient migration to the process water, which allowed the precipitation of salt with high P (7.8 wt%) and negligible heavy metal content. Anaerobic digestion of co-HTC process water allowed high organic matter removal (up to 65%), and methane production (315 – 325 mL CH4 g-1CODadded). Gross energy recovery by HTC and anaerobic digestion was 5 – 6-fold higher than anaerobic treatment of feedstocks. Therefore, co-HTC of SM and GPW with a ratio > 50% GPW proved to be a suitable approach to valorize and manage SM and obtain value-added products (hydrochar, mineral fertilizer and methane)
Files in this item
Google Scholar:P. Ipiales, R.
-
Fernández Mohedano, Ángel
-
Diaz Portuondo, E.
-
Diaz, E.
-
Rubia Romero, María de los Ángeles de la
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.