Static and Dynamic Investigations on Leaching/Retention of Nutrients from Raw Poultry Manure Biochars and Amended Agricultural Soil

Samar Hadroug, Salah Jellali, Mejdi Jeguirim, Marzena Kwapinska, Helmi Hamdi, James J. Leahy and Witold Kwapinski
Additional contact information
Samar Hadroug: Wastewater and Environment Laboratory, Water Research and Technology Center, P.O. Box 273, Soliman 8020, Tunisia
Salah Jellali: PEIE Research Chair for the Development of Industrial Estates and Free Zones, Center for Environmental Studies and Research, Sultan Qaboos University, Al-Khoud 123, Muscat, Oman
Mejdi Jeguirim: The Institute of Materials Science of Mulhouse (IS2M), University of Haute Alsace, University of Strasbourg, CNRS, IS2M UMR 7361, F-68100 Mulhouse, France
Marzena Kwapinska: Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
Helmi Hamdi: Center for Sustainable Development, College of Arts and Sciences, Qatar University, 2713 Doha, Qatar
James J. Leahy: Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
Witold Kwapinski: Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland

Sustainability, 2021, vol. 13, issue 3, 1-26

Abstract: In this study, nutrients release/adsorption from/by raw poultry manure-derived biochar produced at a pyrolysis temperature of 600 °C (RPM-B) was assessed under static and dynamic conditions. Batch sequential leaching experiments of RPM-B for a total contact time of 10 days showed that both phosphorus and potassium were slowly released but with higher amounts compared to various other animal- and lignocellulosic-derived biochars. The cumulated released P and K amounts were assessed to 93.6 and 17.1 mg g −1 , which represent about 95% and 43% of their original contents in the RPM-B, respectively. The column combined leaching/adsorption experiments showed that amending an alkaline sandy agricultural soil with two doses of RPM-B (at 5% and 8% w:w) resulted in an efficient retention of NO 3 -N and NH 4 -N, and on the contrary, important leached amounts of PO 4 -P, K + , Mg 2+ , and Ca 2+ but with relatively slow kinetic release rates for a long period. Even after 40 days of dynamic leaching, these latter nutrients continued to be released with kinetic rates lower than 10 mg kg −1 d −1 . Thus, compared to synthetic fertilizers, RPM-B valorization as organic amendment for poor semiarid soils could be considered as an attractive, eco-friendly, and sustainable waste recycling option.

Keywords: poultry manure biochar; nutrients; sequential extraction; leaching; adsorption (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (1)

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