Industrial process description for the Recovery of agricultural water from digestate

Halina Pawlak-Kruczek , Agnieszka Urbanowska , Weihong Yang , Brem Gerrit , Aneta Magdziarz , Przemysław Seruga , Łukasz Niedźwiecki , Artur Pozarlik , Agata Mlonka-Mędrala , Małgorzata Kabsch-Korbutowicz , Eduard Barmer , Marcin Baranowski , Małgorzata Sieradzka , Monika Tkaczuk-Serafin

Abstract

Currently, the reclamation and reuse of water have not reached their full potential, although more energy is needed to obtain and transport freshwater and this solution has a more serious environmental impact. Agricultural irrigation is, by far, the largest application of reclaimed water worldwide, so the proposed concept may result in the production of water that can be used, among others, for crop irrigation. This paper describes a novel installation for the recovery of the agricultural water from the digestate, along with the results of initial experiments. Currently, water is wasted, due to evaporation, in anaerobic digestion plants, as the effluent from dewatering of the digestate is discharged into lagoons. Moreover, water that stays within the interstitial space of the digestate is lost in a similar fashion. With increasing scarcity of water in rural areas, such waste should not be neglected. The study indicates that hydrothermal carbonization (HTC) enhances mechanical dewatering of the agricultural digestate and approximately 900 L of water can be recovered from one ton. Dewatered hydrochars had a lower heating value of almost 10 MJ/kg, indicating the possibility of using it as a fuel for the process. The aim of this Design Innovation Paper is to outline the newly developed concept of an installation that could enable recovery of water from, so far, the neglected resource—i.e., digestate from anaerobic digestion plants.
Author Halina Pawlak-Kruczek - Wrocław University of Science and Technology (PWr)
Halina Pawlak-Kruczek,,
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, Agnieszka Urbanowska - Wrocław University of Science and Technology (PWr)
Agnieszka Urbanowska,,
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, Weihong Yang - KTH Royal Institute of Technology (KTH)
Weihong Yang,,
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, Brem Gerrit - University of Twente (UT)
Brem Gerrit,,
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, Aneta Magdziarz - AGH University of Science and Technology (AGH)
Aneta Magdziarz,,
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, Przemysław Seruga (PE / DBE)
Przemysław Seruga,,
- Department of Bioprocess Engineering
, Łukasz Niedźwiecki - Wrocław University of Science and Technology (PWr)
Łukasz Niedźwiecki,,
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, Artur Pozarlik - University of Twente (UT)
Artur Pozarlik,,
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, Agata Mlonka-Mędrala - AGH University of Science and Technology (AGH)
Agata Mlonka-Mędrala,,
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, Małgorzata Kabsch-Korbutowicz - Wrocław University of Science and Technology (PWr)
Małgorzata Kabsch-Korbutowicz,,
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et al.`
Journal seriesJournal of Energy Resources Technology-Transactions of the Asme, [Journal of Energy Resources Technology, Transactions of the ASME], ISSN 0195-0738, e-ISSN 1528-8994, (N/A 100 pkt)
Issue year2020
Vol142
No7
Pages1-8
Publication size in sheets0.5
Article number075001-3
Keywords in Englishenergy conversion/systems, energy systems analysis, power (co-) generation, renewable energy
ASJC Classification1906 Geochemistry and Petrology; 2102 Energy Engineering and Power Technology; 2103 Fuel Technology; 2105 Renewable Energy, Sustainability and the Environment; 2210 Mechanical Engineering
DOIDOI:10.1115/1.4046141
Languageen angielski
File
Pawlak-Kruczek_Urbanowska_Yang_Brem_Magdziarz_Seruga_ Niedzwiecki_Pozarlik_Mlonka-Medrala_Kabsh-Korbutowicz_ Bramer_Baranowski_Sieradzka_Tkaczuk-Serafin_ Industrial _process description _for_ the_ Recovery 2020.pdf 487,88 KB
Score (nominal)100
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.667; WoS Impact Factor: 2018 = 2.759 (2) - 2018=2.681 (5)
Citation count*
Additional fields
UwagaThe authors would like to thank the European Commission,National Centre for Research and Development (Poland), Neder-landse Organisatie Voor Wetenschappelijk Onderzoek (Nether-lands), and Swedish Research Council Formas for funding in theframe of the collaborative international consortium (RECOWAT-DIG)financed under the 2018 Joint call of the WaterWorks2017ERA-NET Cofund. This ERA-NET is an integral part of the activ-ities developed by the Water JPI
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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