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The Chemical Kinetics in Migration of Organophosphorus in Clay with Different pH
Author(s) -
Hongyan LI,
Guangxin ZHANG,
Dingfeng SONG,
Yanliang WANG,
Jianping LI,
Xuqian LI
Publication year - 2013
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12118
Subject(s) - kinetics , chemistry , penetration (warfare) , mineralization (soil science) , penetration rate , environmental chemistry , chemical engineering , geotechnical engineering , geology , organic chemistry , nitrogen , operations research , quantum mechanics , engineering , physics
Abstract: In order to study the characters of chemical kinetics for organophosphorus migration in clay with different pH, waste of organophosphorus was put under pressure to leakage permeating the cohesive soil, and simulate the process of organophosphorus leakage permeating the Aquitard, searching the characters of chemical kinetics for organophosphorus migration in clay with different pH. It is shown that the ability of migration of organophosphorus leakage permeating the cohesive soil fall with increase of pH; the penetration rate of organophosphorus is about 1.25% when pH is 7.5, organophosphorus has not penetrated the cohesive soil when pH is equal or greater than 8.5. The effect of retardarce is obvious. Concentration of PO 4 3− that comes from the mineralization of organophosphorus is lowered slightly with increases of pH of clay, and rise with extension of time. The Chemical Kinetics equation is log c =−0.1pH+0.2172 k 1 t + S .