Assessment of di-(2-ethylhexyl) phthalate (DEHP) in municipal and industrial sludges of taiwan by supercritical fluid extraction (SFE) and gas chromatography with electron ionization detection

被引：11

作者：

Cheng, Hsiao-Fen ^{[1
]}

Kumar, Mathava ^{[1
]}

Lin, Jih-Gaw ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Inst Environm Engn, Hsinchu 300, Taiwan

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2008年 / 43卷 / 01期

关键词：

supercritical fluid extraction; sewage sludge; soil fertilizer; di-(2-ethylhexyl) phthalate;

D O I：

10.1080/01496390701764478

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In the present study, DEHP in selected municipal sewage (raw and treated) and industrial sludges of Taiwan was quantified by SFE and GC/EID. As a precursor, the optimal operating parameters of SFE were identified by laboratory experiments using DEHP spiked quartz sand. DEHP extraction efficiency was increased by the addition of modifier i.e. methanol (0.5mL, 7%). DEHP concentration in all sewage sludge (M-1 to M-4) and a textile industry (I-6) samples were above the limit suggested by the European Union (100 mg/kg). The results suggest that excess DEHP concentration observed in the sewage sludge needs considerable attention before disposal.

引用

页码：132 / 146

页数：15

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