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1.What are they used for? 相關用途 % [- q8 i: ~8 M
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Alkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They o4 W2 p) B( L
are good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems
/ P7 Q9 z5 t" t* E, t, k/ r; s4 y1 m @such as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are 1 K6 o% P% E8 {% @/ |5 @6 {0 p
also used as domestic cleaning agents and co-formulants in pesticides and biocides. 1 ?3 s/ \; q- u! L) @2 s
In particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent ; `0 i8 x+ C+ j) w$ @% m8 L
auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in 1 y. z- B1 D+ z+ P( w" p6 R c
textile wet processing.
; A/ x% m7 h7 j9 {2 C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 / P4 K0 m+ e3 ]+ L& `' Q
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 7 F( p* ]6 d ~- m. u7 z) I
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 ' a: `) g; _. o
滌劑中,以及殺蟲劑和除生物劑的處方。
4 N, C4 u \# N' ~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 0 M Z7 S" E* {6 }
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 `7 K, s" |# [( 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。 - p6 z% z6 @6 J2 F
5 |- \1 L7 C2 g3 c* } {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 5 P- o- h! L1 p }/ d. X$ u
to the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment
7 [9 x' l# O% M9 e& U% ~9 l, M1 `and can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced
3 H# X5 a" l- F$ l( F7 L+ A3 \& band populations are in danger of shrinking.
% X1 p1 s1 ~" D, ]7 v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
4 u& I, V+ B7 g% g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
7 U! A: K5 @6 ?- ]) ]9 z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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5 r) Q, h! T" P3 l8 b3.What are the measures? 相關措施 & o5 B& V3 O4 \+ \
4 n. f9 y6 h. ]" o) ]4 d5 s& yWithin the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC
7 p1 Q' p* B% k9 h Wrestrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as - t* q7 K& B0 W: z: W9 O
below:
8 F. r: R/ W9 q- u3 t8 u& }+ X* kBy 17 January 2005, except for pesticides or biocides which have been granted by existing national . l8 }5 f }" g
authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in 5 R0 `! D$ |0 K6 ~7 R+ W
concentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes:
: c* h9 g# `% w5 z6 y• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated; $ C: b1 N* V$ L4 P
• domestic cleaning; , D& h/ @. }5 P5 m
• textiles and leather processing except those without release into waste water or those with special treatments + {- b1 d+ Y7 l& H/ U8 _. y( K6 c
to remove the organic fraction completely prior to the release;
& {4 [6 X1 H% @ _3 [/ Q• emulsifier in agricultural teat dips;
. [: i9 \9 W3 e5 w$ R• metal working except those systems where the washing liquid isrecycled or incinerated; ) u5 o! w* q( ^9 M& C6 p6 x7 n
• manufacturing of pulp and paper;
: V* g* [9 Y- y' C6 W& U/ N. i/ g8 Z• cosmetic products; " Z. S# r2 S. I6 C% l) @" ?
• other personal care products except spermicides;
+ K8 e- S4 O9 ^& I1 \2 b) f• co-formulants in pesticides and biocides.
. v7 u# R3 Y$ a- R0 K( y$ z; f0 ?, I2003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
* ?$ k1 Y, i4 G. V7 e) [(NP)和壬基酚乙氧基化物(NPEOs),概述如下: % W8 S, N" I& e% q4 Z" H
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
* ^3 K' |, {4 H8 d2 v! h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 ):
; `: ?. u5 n0 ~- u4 f4 U2 x• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外;
0 O4 Y2 r6 b( g9 S# s {• 家庭清潔; 6 r' o2 d$ c9 I& G
• 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; : W x3 G% z, P$ a, N! G/ A( H) m2 ]
• 農用乳頭消毒液的乳化劑;
( z5 e: X4 T7 s1 H• 金工, 備有洗滌液再循環或焚化的系統除外;
6 U+ R# ?/ ]* Q• 紙漿和造紙加工; - z8 Y# u# G% i% z8 E4 s
• 化妝品;
% g2 E& s* \ ?' n% T. c4 J• 其他個人護理用品,殺精劑除外; ( ] Z9 R. L$ l
• 殺蟲劑和除生物劑的處方。
. ]# y8 }8 S2 L来源:STC 李昊鹏 |
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