Duckweed from a Biorefinery System: Nutrient Recovery Efficiency and Forage Value

Marcin Sońta, Andrzej Łozicki, Magdalena Szymańska, Tomasz Sosulski, Ewa Szara, Adam Wąs, Gijs W. P. van Pruissen and René L. Cornelissen
Additional contact information
Marcin Sońta: Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences—SGGW, Ciszewskiego 8, 02-786 Warsaw, Poland
Andrzej Łozicki: Division of Animal Nutrition, Institute of Animal Sciences, Warsaw University of Life Sciences—SGGW, Ciszewskiego 8, 02-786 Warsaw, Poland
Magdalena Szymańska: Department of Agricultural Chemistry, Institute of Agricultural, Warsaw University of Life Sciences—SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
Tomasz Sosulski: Department of Agricultural Chemistry, Institute of Agricultural, Warsaw University of Life Sciences—SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
Ewa Szara: Department of Agricultural Chemistry, Institute of Agricultural, Warsaw University of Life Sciences—SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
Adam Wąs: Department of Economics and Organisation of Enterprises, Institute of Economics and Finance, Warsaw University of Life Sciences—SGGW, Nowoursynowska 166, 02-787 Warsaw, Poland
Gijs W. P. van Pruissen: Cornelissen Consulting Services BV, Binnensingel 3, 7411 PL Deventer, The Netherlands
René L. Cornelissen: Cornelissen Consulting Services BV, Binnensingel 3, 7411 PL Deventer, The Netherlands

Energies, 2020, vol. 13, issue 20, 1-14

Abstract: This paper presents the results of an interdisciplinary study aimed at assessing the possibility of using duckweed to purify and recover nutrients from the effluent remaining after struvite precipitation and ammonia stripping from a liquid fraction of anaerobic digestate in a biorefinery located at a Dutch dairy cattle production farm. The nutritional value of duckweed obtained in a biorefinery was assessed as well. Duckweed ( Lemna minuta ) was cultured on a growth medium with various concentrations of effluent from a biorefinery (EFL) and digested slurry (DS) not subjected to the nutrient recovery process. The study’s results showed that duckweed culture on the media with high contents of DS or EFL was impossible because they both inhibited its growth. After 15 days of culture, the highest duckweed yield was obtained from the ponds with DS or EFL contents in the medium reaching 0.39% (37.8 g fresh matter (FM) and 16.8 g FM per 8500 mL of the growth medium, respectively). The recovery of N by duckweed was approximately 75% and 81%, whereas that of P was approximately 45% and 55% of the growth media with EFL 0.39% and DS 0.39% , respectively. Duckweed obtained from the biorefinery proved to be a valuable high-protein feedstuff with high contents of α-tocopherol and carotenoids. With a protein content in duckweed approximating 35.4–36.1%, it is possible to obtain 2–4 t of protein per 1 ha from EFL 0.39% and DS 0.39% ponds, respectively.

Keywords: biogas plant; farm biorefinery; duckweed; P and N recovery; nutritional value (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/20/5261/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/20/5261/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:20:p:5261-:d:425818

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().