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Xiao-Hua YANG Ying MEI Rong JIANG Chong-Li DI Xue-Jun ZHANG


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.

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YANG, Xiao-Hua et al. PHOSPHORUS ISOTHERMAL ADSORPTION CHARACTERISTICS OF MULCH OF BIORETENTION. Thermal Science, [S.l.], v. 16, n. 5, p. 1358-1361, dec. 2016. ISSN 2334-7163. Available at: <>. Date accessed: 19 sep. 2017. doi:
Received 2016-12-29
Accepted 2016-12-30
Published 2016-12-30


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