THERMAL SCIENCE

International Scientific Journal

PHOSPHORUS ISOTHERMAL ADSORPTION CHARACTERISTICS OF MULCH OF BIORETENTION

ABSTRACT
This study aims to identify mulch of bioretention which has high phosphorus sorption capacity. The phosphorus adsorption characteristics of five types of mulch of bioretention are studied by three isothermal adsorption experiments. Results show that the Langmuir eqution is suitable for describing absorption characteristics of five types of mulch. The positive values of Gibbs free energy for phosphorus indicate that the phosphorus biosorption by five mulches is a non-spontaneous process, and the values of mean sorption free energy of mulch are less than 8 kJ/mol, which proves that the adsorption process can be dominated by physical forces. The vermiculite is the better mulch of bioretention based on high phosphorus removal capacity.
KEYWORDS
PAPER SUBMITTED: 2012-05-27
PAPER REVISED: 2012-08-28
PAPER ACCEPTED: 2012-09-01
DOI REFERENCE: https://doi.org/10.2298/TSCI1205358M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE 5, PAGES [1358 - 1361]
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© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence