TY - JOUR
TI - Phosphorus isothermal adsorption characteristics of mulch of bioretention
AU - Mei Ying
AU - Yang Xiao-Hua
AU - Jiang Rong
AU - Di Chong-Li
AU - Zhang Xue-Jun
JN - Thermal Science
PY - 2012
VL - 16
IS - 5
SP - 1358
EP - 1361
PT - Article
AB - 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.