%0 Journal Article
%T Solubilizing and washing phenanthrene using microemulsion derived from castor oil and remediation mechanisms of phenanthrene-spiked soils<br>蓖麻油衍生微乳液对菲的增溶和洗脱作用及其对菲污染土壤的修复机理
%A Zhao Baowei
%A Zhu Lizhong
%A <br>赵保卫
%A 朱利中
%J 环境工程学报
%D 2007
%I 
%X The solubilization and washing of phenanthrene by sodium castor oil sulfate (SCOS) microemulsion were studied and compared with those by the conventional surfactants, Triton X-100 (TX100), Tween 80 (TW80), Brij35, sodium dodecylbenzyl sulfonate (SDBS) and sodium dodecyl sulfate (SDS). The extent of solubility enhancement is linearly proportional to the concentration of SCOS microemulsion.SCOS microemulsion exhibited the largest solubilization ratio (SR=0.0314) among the selected surfactants. The partitioning coefficients of phenanthrene between the emulsified droplet and the aqueous phase (logKem=4.44) was slightly larger than those between the micellar pseudo phase and the aqueous phase (logKmc). The extraction experiment demonstrated a high and fast desorption of phenanthrene from spiked soil by SCOS microemulsion, compared with by the conventional surfactant solutions. The results showed that SCOS could be an attractive alternative to synthetic surfactants in the remediation of contaminated soils.
%K sodium castor oil sulfate
%K surfactant
%K phenanthrene
%K solubilization
%K soil washing<br>蓖麻油硫酸盐
%K 表面活性剂
%K 菲
%K 增溶作用
%K 洗脱作用
%K 蓖麻油
%K 衍生
%K 微乳液
%K 增溶
%K 作用
%K 污染土壤
%K 修复机理
%K soils
%K mechanisms
%K remediation
%K castor
%K derived
%K microemulsion
%K phenanthrene
%K 增效试剂
%K 淋洗
%K 土壤有机污染
%K 效率最高
%K 速率
%K 水体系
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=E1DE5610D3B9733E67A6E5422F7A94B6&yid=A732AF04DDA03BB3&vid=CA4FD0336C81A37A&iid=0B39A22176CE99FB&sid=B47A0E731AF43EB2&eid=03A030BB0C519C60&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=12