TY - JOUR
AU - Guo, Rongbo
AB - 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.
TI - Distillers’ grains anaerobic digestion residue biochar used for ammonium sorption and its effect on ammonium leaching from an Ultisol
JF - Environmental Science and Pollution Research
DO - 10.1007/s11356-018-1681-3
DA - 2018-03-11
UR - https://www.deepdyve.com/lp/springer-journals/distillers-grains-anaerobic-digestion-residue-biochar-used-for-6HMPQLWR3G
SP - 14563
EP - 14574
VL - 25
IS - 15
DP - DeepDyve
ER -