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[化学分析] Restriction on Nonylphenol & NPEOs in Textiles

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发表于 2009-3-6 14:13:00 | 显示全部楼层 |阅读模式
1.What are they used for? 相關用途 , o" X- Z; h5 H: M3 V
; J7 K0 \7 L& g7 S% E% D  d2 @- w4 W
Alkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They 4 q+ o  R; D1 A) f
are good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems   P* i$ H9 C- y% U  q4 ~% h
such as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are * S; ]" b& N, j
also used as domestic cleaning agents and co-formulants in pesticides and biocides.
3 u% P+ U9 w$ r; s" pIn particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent
% N* d& L3 L5 ?+ ~  g! C& E! Iauxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in
( m) ^. F' ^  z3 E- d3 Qtextile wet processing.
: `0 G: J. ?: ], ~2 d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 # n$ f/ m. F  R+ g
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 2 H" H* X; \1 z8 m+ _
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 * [1 l) p, J& ?
滌劑中,以及殺蟲劑和除生物劑的處方。 2 }/ N) `( }( q- P+ s
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 : L. N0 h) _* O$ ^5 C2 a
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 5 S9 a( K" s7 p
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。 5 Y, G1 X7 @4 W. q% I& t. f: `
3 u3 p2 S, v2 q
2.What are the problems? 相關問題
. z) F) x* @0 U( N+ d+ e9 r  A  R$ b$ |$ a" y1 E: i; c7 v6 a
Since APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released
/ J2 Z! u% c9 k# [, s: @to the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment : r3 }$ s. Z, L* P
and can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced - I( w8 u$ }" k1 s6 {/ m
and populations are in danger of shrinking. 9 D( N) q1 Z( M
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
; c+ O0 v( F2 \% C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
) H* F* U7 a$ d魚的生產力或繁殖率下降,從而使魚的種群有減少的危機。 2 S: v5 L- L5 [/ s
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3.What are the measures? 相關措施
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+ Q  T- W  A% O0 V  nWithin the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC / D# Q6 e  ^5 h
restrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as ! v2 e$ G6 P" O7 ^! G( H2 \9 K
below: 7 i; p1 F! X+ S- p# X; W
By 17 January 2005, except for pesticides or biocides which have been granted by existing national 6 S! O; f( T7 U6 q- y7 q
authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in
: G* S' q" a8 i. @+ Oconcentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes: 8 ?0 X" j( g" N4 E" ?
• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated;
" A8 r* L& o% u• domestic cleaning;
# }! G, y, L; {• textiles and leather processing except those without release into waste water or those with special treatments " A7 Y1 q  \, r. J
to remove the organic fraction completely prior to the release; ; l( p4 s7 S8 C  q
• emulsifier in agricultural teat dips; / D9 K5 F, g* X6 w, b' d  ^
• metal working except those systems where the washing liquid isrecycled or incinerated;
- o4 c! S# b; s  `3 }* n5 h: ]• manufacturing of pulp and paper;
4 ^6 }  I/ A5 F# \+ h# Z8 I9 b• cosmetic products; 7 b' F3 P* h/ y# P/ F( p' ]
• other personal care products except spermicides;
( O$ Z8 [7 _! |4 Q6 Y& N5 Y% H# L/ W• co-formulants in pesticides and biocides. 9 [/ G( o% G' D& }
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" I4 `4 f8 V0 M: V
(NP)和壬基酚乙氧基化物(NPEOs),概述如下: 0 @, X/ i' v, J) h9 {' Y7 Q
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 4 ~4 E/ e" M! Y" ^+ R4 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 ): $ D2 z2 }  g2 r  B$ v" _' M
• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外; * I- ^$ O2 i$ h
• 家庭清潔; & m# m# t; a2 O
• 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; $ D9 C+ z. \7 h$ h
• 農用乳頭消毒液的乳化劑;
+ n2 F* N( e+ E  O• 金工, 備有洗滌液再循環或焚化的系統除外; 7 k+ v9 l/ d* [, B
• 紙漿和造紙加工;
+ f; p, D  U+ B0 |- h• 化妝品;
( w8 e% P3 C- T" m& S4 Q! n0 I• 其他個人護理用品,殺精劑除外;
# o7 r* U& c0 i" `! J8 N6 N• 殺蟲劑和除生物劑的處方。
, Q0 x1 v$ ?) f3 C- ], |% e来源:STC 李昊鹏
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