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1.What are they used for? 相關用途 $ @& O* L& ?9 [2 C
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Alkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They , ~4 O+ ^ ]% X9 z- M& e- f- }$ ^; S
are good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems
- A4 l. {. Z0 Z9 q/ U: L8 p8 \such as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are w* Z$ f k4 f/ q
also used as domestic cleaning agents and co-formulants in pesticides and biocides.
8 x5 R+ H$ _0 M4 ?, S6 F1 mIn particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent ' ]+ T; V9 E8 r0 E0 ]- D$ ^
auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in
0 q& J" m! }# rtextile wet processing.
' e% a3 j7 x7 w) G4 o5 V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
, y; Z. p) e0 L! A9 {* ~ |/ {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 % o% Y7 a3 C0 R4 O5 H
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
+ W/ y, X2 ~) [( t) d9 F$ _滌劑中,以及殺蟲劑和除生物劑的處方。 3 s' a' m" B: i% P5 g4 p
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
% v! S# Y" B* F6 R% V- Y5 u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 & ~+ {( w. i* [2 X ~* Y: {+ K
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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- {7 J$ I, x: c* E1 l2.What are the problems? 相關問題
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2 \( { |+ a# S3 W/ BSince APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released : J1 d7 Q! w$ F8 f+ H2 B
to the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment
1 c; ^: D* e9 b# r0 Y6 ?and can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced 2 T C& Y& g n- P I' ]3 D
and populations are in danger of shrinking.
6 e8 T- Z( M0 N# ]9 h% k/ ?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 - Z$ ^- b; S z3 U" B! Z0 F# Y# N
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
0 ?, F5 @5 P$ @4 u魚的生產力或繁殖率下降,從而使魚的種群有減少的危機。 % j$ X5 H* ]! S6 B! B
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3.What are the measures? 相關措施 # A6 I; d- r s+ @, R' l- i9 M
# x% o# h& A6 qWithin the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC , b2 \5 [% g5 k
restrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as . c' S& d/ U+ z+ l5 i) O4 B1 D
below: " x# k1 H+ g# X4 j
By 17 January 2005, except for pesticides or biocides which have been granted by existing national * A1 ?4 t8 v7 U
authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in
) ~! T7 C* J* x& u9 X' sconcentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes:
, W9 c% N$ p1 s) B( V! B• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated;
i" t, R k2 k' ~$ t( d0 a) H• domestic cleaning; * z. v3 O+ N- D' S5 X, e# v0 V# E
• textiles and leather processing except those without release into waste water or those with special treatments
% M( z: \4 t- a1 E) L- g, tto remove the organic fraction completely prior to the release;
6 P" g& D% v1 C6 z' c9 M1 w• emulsifier in agricultural teat dips;
' V+ \* g. L; j• metal working except those systems where the washing liquid isrecycled or incinerated;
2 V! P k5 \0 f• manufacturing of pulp and paper; . |% S" Z7 G# O) v) b) B
• cosmetic products; , i s( M1 y) d& [* N! F \6 G7 w" P
• other personal care products except spermicides;
3 `: l9 w2 A# k5 p# b• co-formulants in pesticides and biocides. * O: `/ d! G' d9 [/ N" P3 X
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
& k. [6 x' d- B1 R% p3 l$ U" `3 R(NP)和壬基酚乙氧基化物(NPEOs),概述如下: $ t! y8 d5 w; N- c( w" K
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 9 r1 j9 F a' Q! `' @( f o
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 ): ) a7 y! ?4 ~) ~, ?. i+ [4 ^
• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外; ( h# G, I3 t& ]7 c# C- T) k" \7 @
• 家庭清潔;
1 R8 k+ e5 r% @* d% y+ R# J7 `+ i• 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; * f# V+ ^: W' i
• 農用乳頭消毒液的乳化劑;
2 G3 ?# M/ I8 f! R$ h• 金工, 備有洗滌液再循環或焚化的系統除外;
) @2 y- d! S2 h1 G, \• 紙漿和造紙加工;
8 Z8 J8 H: u5 _/ l/ @• 化妝品; ; i& ~+ j3 p. u% j* @ L
• 其他個人護理用品,殺精劑除外;
G" Q1 K7 B; Z3 d" y+ v7 f• 殺蟲劑和除生物劑的處方。 4 X( \: J6 Q: ?+ A e4 T
来源:STC 李昊鹏 |
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