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1.What are they used for? 相關用途 3 X0 r8 D$ X) H8 m& `4 d
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Alkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They
l0 c& {4 X0 q5 m5 |( } ^are good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems
: V4 z5 u3 P' d" A* csuch as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are : \( X8 r3 @4 c7 N" p
also used as domestic cleaning agents and co-formulants in pesticides and biocides. ; z5 G) f( K$ g0 Z/ V7 ?: h
In particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent + ^& R! D; a* W: I. A& o
auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in
3 i$ {+ s6 q8 L( E$ `/ Utextile wet processing. 9 u! E* D0 \* J S
烷基酚(APs)和烷基酚乙氧基化物(APEOs)在不同工業中常用作輔助化學
) m. e% d/ H, O. Q4 l劑。它們是良好的乳化劑和潤濕劑,因此它們被廣泛地用於不同的工業洗滌過程 & d& E7 P; i6 @5 T! i7 S ^
中,如紡織和皮革加工、紙漿和造紙加工、金工和農業等。它們亦會用於家庭洗 Q1 X$ i. W5 P! G1 J) y
滌劑中,以及殺蟲劑和除生物劑的處方。
5 W$ i+ H; n& H; a/ D" n, w在紡織品的濕處理過程中,壬基酚(NP)和壬基酚乙氧基化物(NPEOs)(分別 8 s+ H# l) q0 c7 Z: b4 L3 o
屬於烷基酚(APs)族和烷基酚乙氧基化物(APEOs)族),主要被用作洗滌劑 1 M4 O4 @) W& i! [" L, e
的助劑,在纖維的清洗及漂白過程中,用以去除如蠟、籽屑等雜物。
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; }# G6 V0 N; t3 a/ A; }2.What are the problems? 相關問題
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Since APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released
- ^/ C& U9 |2 J# E0 w* Ito the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment
8 O/ D9 l6 }" [; j; `- Gand can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced
3 I P" f" ?" e1 b% z* Z2 n# e+ n6 @) Nand populations are in danger of shrinking. 1 s. @0 m4 M3 G5 C, x, J0 F
由於烷基酚(APs)和烷基酚乙氧基化物(APEOs)是不能被生物降解的,因此,當它們被排放或釋放到環境 * t' `; H; F! ~4 W4 ?8 s3 G8 M
中時,便會引發嚴重的環境問題。對水質生態來說,他們是烈性的內分泌破壞者,能導致雄魚雌性化。結果是
) w# @$ j+ T0 K! B8 z0 c& b魚的生產力或繁殖率下降,從而使魚的種群有減少的危機。
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3.What are the measures? 相關措施 8 {: Y5 H0 _1 X% @# L
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Within the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC
2 L) _# w, L; y, B4 w% K7 N& Irestrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as ) C6 C- G( ^+ p1 J6 t% d
below:
: `5 {$ P* q. E. U% K& d8 K' LBy 17 January 2005, except for pesticides or biocides which have been granted by existing national - _9 L) N/ q7 G, V6 F
authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in
9 a) n, |: g, O9 nconcentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes: $ E2 n$ v6 B+ [9 b$ Q+ e% D8 H4 _
• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated;
! q: M& C$ |8 ?. h6 [• domestic cleaning;
) N7 V$ L* P8 O6 A6 K s• textiles and leather processing except those without release into waste water or those with special treatments , G9 |- \; e8 z' r. y
to remove the organic fraction completely prior to the release;
: T6 h6 y O4 Q' X• emulsifier in agricultural teat dips;
' i6 {- w1 P( G$ S7 f! C! B• metal working except those systems where the washing liquid isrecycled or incinerated; 3 g( |5 p$ Z% S) k2 h7 ~2 K
• manufacturing of pulp and paper; 1 @. K n: }, s7 {; `0 i, v
• cosmetic products; # \3 G* ?- _, D$ L, ~
• other personal care products except spermicides;
* v- h1 k( _ |1 D5 X2 r• co-formulants in pesticides and biocides.
8 X1 t- X: U: n, q0 h# ~0 y3 }2003年6月18日發佈的2003/53/EC指令已經加進76/769/EEC指令中,該指令限制銷售和使用壬基酚 * B1 F; n, c: U& v. e X
(NP)和壬基酚乙氧基化物(NPEOs),概述如下:
1 G! c5 } k4 E P2 M6 \1 X' i從2005 年1 月17 日起,除了已被國家授權准予使用NPEOs 作為處方的殺蟲劑和除生物劑外,用於下列目的壬 + w6 C. b# o! e, x" a; l
基酚(NP )和壬基酚乙氧基化物(NPEOs )的質量比濃度不可等於或高於0.1% (相當於1,000ppm ):
9 n2 W$ O7 J# a2 A V& J& V- w3 G• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外; % s* @; L6 R1 o
• 家庭清潔; $ W0 Z/ U! L* T! V0 A
• 紡織品和皮革加工,不排放到廢水或在排放前經過特殊處理而完全除去了有機物的除外; ' T; J+ ~" N8 D" _: Q: }2 z
• 農用乳頭消毒液的乳化劑; , R8 a( F: k/ W# ]0 O2 }" F
• 金工, 備有洗滌液再循環或焚化的系統除外;
8 b3 O- y F( [* t4 c5 A• 紙漿和造紙加工;
: F. g, J9 I$ o# ^1 E* t• 化妝品;
1 K; M+ S& K- }8 g' ?) S& ^• 其他個人護理用品,殺精劑除外; 1 t J$ c* H6 M" m) ?
• 殺蟲劑和除生物劑的處方。
3 {9 {+ w; k' H( s' {来源:STC 李昊鹏 |
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