吉林大学学报（理学版）
吉林大學學報（理學版）
길림대학학보（이학판）
JOURNAL OF JILIN UNIVERSITY(SCIENCE EDITION)
2014年
2期
383-388
,共6页
草炭土%石油污染%地下水%渗透性反应墙修复%化学试剂
草炭土%石油汙染%地下水%滲透性反應牆脩複%化學試劑
초탄토%석유오염%지하수%삼투성반응장수복%화학시제
peat%petroleum contaminated%groundwater%permeable reactive barrier (PRB)repair%chemical reagent
选用11种化学试剂对渗透性反应墙(PRB)反应介质草炭土进行修饰,并分析吸附前后草炭土的微观结构.结果表明：经 HCl,NaOH,CH 3 COOH,Mg2+,Na3 C6 H 5 O 7和PO 3-4修饰后的草炭土吸附总石油烃(TPH)的能力降低；经Ca2+,Fe3+,Cu2+,乙二胺四乙酸(EDTA)和腐植酸修饰后的草炭土吸附TPH 的能力升高,其中,经0.100 mol/L Ca2+修饰后的草炭土去除地下水中TPH 为92.26%,其吸附规律符合Langmuir等温吸附方程,理论最大吸附量为2.04 g/g；吸附动力学规律遵循准二级动力学方程,吸附60 min后达到动态平衡；草炭土通过物理吸附和化学吸附去除石油污染物.
選用11種化學試劑對滲透性反應牆(PRB)反應介質草炭土進行脩飾,併分析吸附前後草炭土的微觀結構.結果錶明：經 HCl,NaOH,CH 3 COOH,Mg2+,Na3 C6 H 5 O 7和PO 3-4脩飾後的草炭土吸附總石油烴(TPH)的能力降低；經Ca2+,Fe3+,Cu2+,乙二胺四乙痠(EDTA)和腐植痠脩飾後的草炭土吸附TPH 的能力升高,其中,經0.100 mol/L Ca2+脩飾後的草炭土去除地下水中TPH 為92.26%,其吸附規律符閤Langmuir等溫吸附方程,理論最大吸附量為2.04 g/g；吸附動力學規律遵循準二級動力學方程,吸附60 min後達到動態平衡；草炭土通過物理吸附和化學吸附去除石油汙染物.
선용11충화학시제대삼투성반응장(PRB)반응개질초탄토진행수식,병분석흡부전후초탄토적미관결구.결과표명：경 HCl,NaOH,CH 3 COOH,Mg2+,Na3 C6 H 5 O 7화PO 3-4수식후적초탄토흡부총석유경(TPH)적능력강저；경Ca2+,Fe3+,Cu2+,을이알사을산(EDTA)화부식산수식후적초탄토흡부TPH 적능력승고,기중,경0.100 mol/L Ca2+수식후적초탄토거제지하수중TPH 위92.26%,기흡부규률부합Langmuir등온흡부방정,이론최대흡부량위2.04 g/g；흡부동역학규률준순준이급동역학방정,흡부60 min후체도동태평형；초탄토통과물리흡부화화학흡부거제석유오염물.
Eleven kinds of chemical reagents were chosen to modify peat to improve its ability of absorbing TPH.The results show that after it was modified by HCl,NaOH,CH 3 COOH,Mg2+, sodium citrate,PO 3-4 ,the ability of absorbing TPH of peat is reduced,but after modified with Ca2+, Fe3+,Cu2+,EDTA,humic acid,it is improved.After modified with 0.100 mol/L Ca2+,the remove rate of TPH is as high as 92.26%.The adsorption of it for TPH conforms with the Langmuir isothermal adsorption equation and the maximum adsorption in theory is 2.04 g/g.Its adsorption kinetics model conforms with the second-order kinetics,and 60 min later,the adsorption reaches dynamic equilibrium.Observed results before and after adsorption show that there are both physical and chemical adsorptions in the process of peat for petroleum.
