Anaerobic co-digestion of the process water from waste activated sludge hydrothermally treated with primary sewage sludge. A new approach for sewage sludge management
| Autor: | Angel F. Mohedano, M.A. de la Rubia, Juan J. Rodriguez, J.A. Villamil, J. San Martín |
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| Přispěvatelé: | UAM. Departamento de Ingeniería Química |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
060102 archaeology Renewable Energy Sustainability and the Environment 020209 energy 06 humanities and the arts 02 engineering and technology Hydrothermal carbonization Química Pulp and paper industry Anaerobic digestion Activated sludge chemistry Semi-continuous operation HTC process water Sewage sludge valorization 0202 electrical engineering electronic engineering information engineering Mesophilic and thermophilic operation 0601 history and archaeology Organic matter Anaerobic exercise Water content Sludge Mesophile |
| Zdroj: | Biblos-e Archivo: Repositorio Institucional de la UAM Universidad Autónoma de Madrid Biblos-e Archivo. Repositorio Institucional de la UAM Consejo Superior de Investigaciones Científicas (CSIC) |
| DOI: | 10.1016/j.renene.2019.06.138 |
| Popis: | Hydrothermal carbonization (HTC) is a suitable technology for managing wastes with a high moisture content, providing a carbon-rich and high energy density material called hydrochar and a process water (PW) with significant organic matter content. The aim of this work was to develop a new approach to sewage sludge management involving anaerobic digestion (AD) of the PW of dewatered waste activated sludge (DWAS) with primary sewage sludge (PSS). The process was optimized by performing semi-continuous experiments with different feed mixture compositions (10% PW/90% PSS and 5% PW/95% PSS, on a COD basis), organic loading rates (OLR; 1.5 and 2.5 g COD L−1 d−1), and temperature regimes (mesophilic and thermophilic). The combination of mesophilic conditions, a 10% PW/90% PSS feed mixture and OLR of 1.5 g COD L−1 d−1 provided concentrations of volatile fatty acids The authors greatly appreciate funding from Spain's MINECO (Project CTM2016-76564-R; project RYC-2013-12549), Madrid Regional Government (Project P2018/EMT-4344) and UAMSantander (Project 2017/EEUU/07) |
| Databáze: | OpenAIRE |
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