Valorisation of Cranberry Residues through Pyrolysis and Membrane Filtration for the Production of Value-Added Agricultural Products

Ghita Bennani, Adama Ndao, Delon Konan, Patrick Brassard, Étienne Le Roux, Stéphane Godbout and Kokou Adjallé ()
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Ghita Bennani: Laboratoire de Biotechnologies Environnementales, Institut National de la Recherche Scientifique (INRS), 490 Rue de la Couronne, Québec, QC G1K 9A9, Canada
Adama Ndao: Laboratoire de Biotechnologies Environnementales, Institut National de la Recherche Scientifique (INRS), 490 Rue de la Couronne, Québec, QC G1K 9A9, Canada
Delon Konan: Laboratoire de Biotechnologies Environnementales, Institut National de la Recherche Scientifique (INRS), 490 Rue de la Couronne, Québec, QC G1K 9A9, Canada
Patrick Brassard: Research and Development Institute for the Agri-Environment (IRDA), 2700 rue Einstein, Québec, QC G1P 3W8, Canada
Étienne Le Roux: Research and Development Institute for the Agri-Environment (IRDA), 2700 rue Einstein, Québec, QC G1P 3W8, Canada
Stéphane Godbout: Research and Development Institute for the Agri-Environment (IRDA), 2700 rue Einstein, Québec, QC G1P 3W8, Canada
Kokou Adjallé: Laboratoire de Biotechnologies Environnementales, Institut National de la Recherche Scientifique (INRS), 490 Rue de la Couronne, Québec, QC G1K 9A9, Canada

Energies, 2023, vol. 16, issue 23, 1-17

Abstract: Pyrolysis is a thermochemical conversion process producing biochar, gas, and bio-oil at high temperatures in an oxygen-free environment. Specific pyrolysis conditions enable a significant production of the aqueous phase of bio-oil, commonly known as wood vinegar. Wood vinegar contains organic compounds such as acetic acid and phenols derived from bio-oil. These compounds have herbicidal properties against weeds and biostimulant properties for plant growth. This study reveals the potential for efficient management of cranberry residues consisting of stems and leaves by producing wood vinegar through pyrolysis at 475 °C with a humidity level of 20%. Membrane separation of wood vinegar, using nanofiltration (NF) and reverse osmosis (RO) membranes, yielded phenols in the retentate and acetic acid in the permeate with respective yields of 44.7% with NF membrane and 45% with RO membrane. Biostimulation tests using 2% of the retentate showed significant germination rates for basil, sage, and parsley plants. Additionally, using 40 mL of the wood vinegar permeate (30 mL injected at the base and 10 mL sprayed on the leaves) resulted in leaf damage, measured by conductivity (leakage of electrolytes released by the leaves), of 62.3% and 20.5% respectively for quack grass and white clover, two weeds found in cranberry production.

Keywords: cranberry; pyrolysis; bio-oil; wood vinegar; bioherbicide; biostimulation (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: 2023
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