农业科学与技术(英文版)
農業科學與技術(英文版)
농업과학여기술(영문판)
AGRICULTURAL SCIENCE & TECHNOLOGY
2010年
9期
153-156
,共4页
张铁军%李晓军%杨辉%王善仙%图影
張鐵軍%李曉軍%楊輝%王善仙%圖影
장철군%리효군%양휘%왕선선%도영
多环芳烃%土壤%索氏提取%超声提取%震荡提取
多環芳烴%土壤%索氏提取%超聲提取%震盪提取
다배방경%토양%색씨제취%초성제취%진탕제취
Polycyclic aromatic hydrocarbons%Soil%Soxhlet extraction%Ultrasonic extraction%Shaking extraction
[目的]准确定量野外污染土壤中残留的PAHs,为PAHs污染土壤的修复提供依据.[方法]针对长期石油污水灌溉农田土壤,对比了常用PAHs提取方法(索氏、震荡和超声提取方法)的提取效率差异.[结果]索氏提取法对土壤中总PAHs的可提取量最高(6 873.7 μg/kg),其次为往复震荡提取法(6 698.8 μg/kg),超声提取法最低(5 737.6 μg/kg),约为前2种提取方法的84%左右;相对于其他提取方法,索氏提取对4环和6环PAHs的提取效率最高,震荡提取对2环和5环PAHs的提取效率最高,超声萃取仅对3环PAHs提取效率最高.[结论]该研究为野外污染土壤中残留PAHs定量评价方法的选择提供了技术支持.
[目的]準確定量野外汙染土壤中殘留的PAHs,為PAHs汙染土壤的脩複提供依據.[方法]針對長期石油汙水灌溉農田土壤,對比瞭常用PAHs提取方法(索氏、震盪和超聲提取方法)的提取效率差異.[結果]索氏提取法對土壤中總PAHs的可提取量最高(6 873.7 μg/kg),其次為往複震盪提取法(6 698.8 μg/kg),超聲提取法最低(5 737.6 μg/kg),約為前2種提取方法的84%左右;相對于其他提取方法,索氏提取對4環和6環PAHs的提取效率最高,震盪提取對2環和5環PAHs的提取效率最高,超聲萃取僅對3環PAHs提取效率最高.[結論]該研究為野外汙染土壤中殘留PAHs定量評價方法的選擇提供瞭技術支持.
[목적]준학정량야외오염토양중잔류적PAHs,위PAHs오염토양적수복제공의거.[방법]침대장기석유오수관개농전토양,대비료상용PAHs제취방법(색씨、진탕화초성제취방법)적제취효솔차이.[결과]색씨제취법대토양중총PAHs적가제취량최고(6 873.7 μg/kg),기차위왕복진탕제취법(6 698.8 μg/kg),초성제취법최저(5 737.6 μg/kg),약위전2충제취방법적84%좌우;상대우기타제취방법,색씨제취대4배화6배PAHs적제취효솔최고,진탕제취대2배화5배PAHs적제취효솔최고,초성췌취부대3배PAHs제취효솔최고.[결론]해연구위야외오염토양중잔류PAHs정량평개방법적선택제공료기술지지.
[Objective] The aim of this study was to find a better method to exactly quantify the residual polycyclic aromatic hydrocarbons (PAHs)in the long-term contaminated soil in the field so as to provide basis for the remediation for PAHs contaminated soil. [Method] The comparisons of soxhlet extraction, ultrasonic extraction and shaking extraction were studied in the agricultural soil irrigated with oil sewage over a long period of time. [Result] The total PAHs extracted by soxhlet extraction were the highest (6 873.7 μg/kg), followed by shaking extraction (6 698.8 μg/kg) and ultrasonic extraction (5 737.6 μg/kg). Among these methods, the highest extracted 4 and 6 rings PAHs were in the soxhlet extraction, the highest extracted 2 and 5 rings PAHs were in the shaking extraction, and the highest extracted 3 rings PAHs were in the ultrasonic extraction. [Conclusion] This study had provided basis for the selection of the assessment method of residual PAHs in the field soil.