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1.What are they used for? 相關用途 9 r5 a e3 q9 D0 T
7 u @3 g& e) g0 nAlkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They
- v) R! }$ E. z' Lare good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems 4 k% O) {) Z( S* x, m" l, Z* s+ w
such as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are
% m! n8 q% O/ q1 C# t$ zalso used as domestic cleaning agents and co-formulants in pesticides and biocides. 5 y. g7 y8 n# c9 H! ] F/ r
In particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent ' H) ]# p. a, Q
auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in 1 _7 Q" L* p3 L
textile wet processing. ) g8 s0 x) Y H, p
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 $ [" W n8 Q, B
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 8 l s) B7 \( n
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
0 z6 Q( t/ Q2 b滌劑中,以及殺蟲劑和除生物劑的處方。 9 {7 \& u0 {6 @9 y
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 - Y# P" i7 J7 }) }4 z& n
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 & }2 j0 V1 Q! v! o, j3 u
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。 ! y5 G6 E; G* p' D3 u1 ^& s
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2.What are the problems? 相關問題
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- K. o. `6 l2 o& z# ?+ uSince APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released 9 U, h% c1 j! D- ]& s7 V7 k3 L) y
to the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment
% S7 Y5 M$ M+ e! |6 s- ?6 F+ Cand can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced
9 u2 E6 N0 q' b: y Tand populations are in danger of shrinking. 8 _+ R% L1 _: h y! A
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
6 Z8 |0 C1 e/ S4 g9 [) m; 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
, y" ~, ]% w, I4 `魚的生產力或繁殖率下降,從而使魚的種群有減少的危機。 , K- F: H& n5 q+ i8 d
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3.What are the measures? 相關措施
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Within the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC
1 u1 X+ G2 P" m) a# x5 L% ~% H3 l* P5 krestrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as
7 Q' { m% N! G+ @* Bbelow: - d* j9 `3 ~' B5 e8 y& J# c0 _
By 17 January 2005, except for pesticides or biocides which have been granted by existing national
7 r; j# n/ W: o# C+ X Wauthorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in
% C# N" d: `, Y! \* h1 h4 p, Zconcentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes:
8 X* \% T6 D W) a) Y3 O1 |• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated; ~; P! L, Q- S; h/ _8 c- w1 [4 Z" k6 e
• domestic cleaning; 7 D" b3 B1 P2 U/ \
• textiles and leather processing except those without release into waste water or those with special treatments
* f: J& f# l# m5 L0 `9 {to remove the organic fraction completely prior to the release;
# l/ y4 f. _- Q• emulsifier in agricultural teat dips; * o$ E+ t* t% d# e3 y" Y' M
• metal working except those systems where the washing liquid isrecycled or incinerated;
1 l7 z2 d0 {( |$ g• manufacturing of pulp and paper;
" h8 L' C7 R9 v7 r( Q% V) ?• cosmetic products; ; f2 e* B5 l/ X) ] X
• other personal care products except spermicides; 1 t4 p/ d+ b3 D9 w9 q$ R$ `: l! N
• co-formulants in pesticides and biocides. & }& V0 r" A, j% G( \
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
( u% \; t' k K% o( {" |3 w: |, s(NP)和壬基酚乙氧基化物(NPEOs),概述如下:
) A1 p% z4 j3 ]; A0 m' Z2 N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 : o% s: D3 ]7 P# G3 r0 e% a
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 ):
% i4 y5 h, K0 y3 m• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外; ; }* R* Q+ \2 Z) T. o
• 家庭清潔;
4 Z5 u7 g( n ^• 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;
8 H& R3 x3 W, h$ @• 農用乳頭消毒液的乳化劑; % C" s2 Z, U# b* U) T! c
• 金工, 備有洗滌液再循環或焚化的系統除外;
9 F; j, s2 u: g+ j& E- h• 紙漿和造紙加工; - |3 v( b1 F1 @, J) U
• 化妝品; $ S8 g9 U+ V& d1 _
• 其他個人護理用品,殺精劑除外;
$ j w2 b# G) |1 u) y• 殺蟲劑和除生物劑的處方。
7 o" M5 u6 V; a# a0 w2 M来源:STC 李昊鹏 |
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