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Distillers’ grains anaerobic digestion residue biochar used for ammonium sorption and its effect on ammonium leaching from an Ultisol

Distillers’ grains anaerobic digestion residue biochar used for ammonium sorption and its effect... The aim of this work was to explore the potential application of biochar from distillers’ grains anaerobic digestion residue pyrolyzed at 700 °C (ADR-DG700) to ammonium (NH4 +) adsorption from aqueous solution, as well as its effect on NH4 + leaching from an Ultisol. The adsorption kinetic of NH4 + on the ADR-DG700 could be described by an Elovich model (R 2 = 0.995), and the combined Langmuir-Freundlich model (R 2 = 0.997) fitted the isotherm data better than the Langmuir, Freundlich, Redlich-Peterson, and Temkin models with a maximum adsorption of 11.41 mg N g−1. The NH4 + adsorption on ADR-DG700 was mainly controlled by the cation exchange, the surface complexation with oxygen-containing functional groups of carboxyl C〓O (C▬O) and carbohydrate C▬OH, as well as the electrostatic interactions with Si▬O▬Si functional group. In addition, the ADR-DG700 soil application reduced 2.48–20.67% of NH4 +-N leaching loss after nitrogen fertilizer application in an Ultisol. These results suggested that the ADR-DG700 could be a sorbent for NH4 +-contaminated water as well as an inhibitor for soil NH4 + leaching. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Environmental Science and Pollution Research Springer Journals

Distillers’ grains anaerobic digestion residue biochar used for ammonium sorption and its effect on ammonium leaching from an Ultisol

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Environment; Environment, general; Environmental Chemistry; Ecotoxicology; Environmental Health; Atmospheric Protection/Air Quality Control/Air Pollution; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
ISSN
0944-1344
eISSN
1614-7499
DOI
10.1007/s11356-018-1681-3
Publisher site
See Article on Publisher Site

Abstract

The aim of this work was to explore the potential application of biochar from distillers’ grains anaerobic digestion residue pyrolyzed at 700 °C (ADR-DG700) to ammonium (NH4 +) adsorption from aqueous solution, as well as its effect on NH4 + leaching from an Ultisol. The adsorption kinetic of NH4 + on the ADR-DG700 could be described by an Elovich model (R 2 = 0.995), and the combined Langmuir-Freundlich model (R 2 = 0.997) fitted the isotherm data better than the Langmuir, Freundlich, Redlich-Peterson, and Temkin models with a maximum adsorption of 11.41 mg N g−1. The NH4 + adsorption on ADR-DG700 was mainly controlled by the cation exchange, the surface complexation with oxygen-containing functional groups of carboxyl C〓O (C▬O) and carbohydrate C▬OH, as well as the electrostatic interactions with Si▬O▬Si functional group. In addition, the ADR-DG700 soil application reduced 2.48–20.67% of NH4 +-N leaching loss after nitrogen fertilizer application in an Ultisol. These results suggested that the ADR-DG700 could be a sorbent for NH4 +-contaminated water as well as an inhibitor for soil NH4 + leaching.

Journal

Environmental Science and Pollution ResearchSpringer Journals

Published: Mar 11, 2018

References