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1.What are they used for? 相關用途
( {$ |1 e( R- U, W2 y( K6 T, M, n: i0 j& e: L
Alkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They
: r# j# w* T5 Hare good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems
7 A4 z; `- w0 t1 Hsuch as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are
3 V- K5 u7 G) t: s: {9 yalso used as domestic cleaning agents and co-formulants in pesticides and biocides. ) J0 Z+ V x7 M! x: I
In particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent - m' l. V4 X: r- h0 j" m
auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in 8 H$ C; \" S* J7 a& |' Q; w: h" h
textile wet processing. ! z. Y I2 d' c1 A
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
~& {. `. E& E q8 @5 O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
. Q6 F1 y$ E! @/ [0 R3 B8 d7 `+ c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 : M. A) H. B3 f; Z" ?( E3 d, G0 a
滌劑中,以及殺蟲劑和除生物劑的處方。 & T) e, |# q o" k' W7 S8 a% E m
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
2 y0 B: Y3 }& i2 ~9 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 ! z& A2 W V& ]- h# `
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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' l" g( ], M/ H2.What are the problems? 相關問題 9 u5 z; E$ M% c* v5 M
& T$ r4 j; f3 D' K) D% f% x6 tSince APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released 2 t: h! F2 n3 r
to the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment ( J, |% _( x* p3 M4 r
and can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced 6 {3 y4 \* d- k5 T
and populations are in danger of shrinking.
0 M) N3 D! U' |6 K7 W% N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 1 p2 {* B: w4 d( m; G# I
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
3 f) K1 T( K- q! l2 r( 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。 5 ?$ g0 ^" e' d6 T8 |
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3.What are the measures? 相關措施 ( q; Y4 s" u% v+ r# Y1 _+ ]
4 ]# |# i! H# M( gWithin the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC % w" v$ |6 C: C( `
restrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as 6 w. [; R2 Z( f. ?+ A( Z! y+ M6 Z. _
below:
4 [1 G+ j/ l4 A% R3 h: d- LBy 17 January 2005, except for pesticides or biocides which have been granted by existing national " Y: ~4 h+ I: P2 t' B7 ]7 V
authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in 8 \) G7 d4 L# i. B2 A
concentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes: % `1 @7 |+ M5 h' b% G
• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated; 8 }( n2 O p2 p$ p
• domestic cleaning;
1 X0 j7 {9 ^4 P% X• textiles and leather processing except those without release into waste water or those with special treatments ) i" w. @+ k* _6 X) M9 o1 R
to remove the organic fraction completely prior to the release;
) u* _6 q0 \% ^! k8 P0 X8 C• emulsifier in agricultural teat dips;
. r% c& ^) ]/ x+ X& K• metal working except those systems where the washing liquid isrecycled or incinerated;
3 f2 [ E* K6 @( y• manufacturing of pulp and paper; ! {4 m: n# \2 r- K1 L1 w
• cosmetic products; 3 a8 m9 e9 k- T! A; |; y+ j
• other personal care products except spermicides; , k( W4 |9 f1 ]$ S* R8 {! I
• co-formulants in pesticides and biocides. 8 w1 M- M% `! E& l# H
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 1 b/ u/ D5 T& x. ? E3 m
(NP)和壬基酚乙氧基化物(NPEOs),概述如下:
$ e( R; ] \1 s0 W' m# [( Y# O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 o) j1 F5 `5 j+ ~
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 ):
' x- S' V. T5 ^• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外; 1 \( L# j. d3 \! @
• 家庭清潔;
( x1 y) F" ?' S* M4 d• 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; 2 j, o6 L( M& X* D9 V) L; H
• 農用乳頭消毒液的乳化劑;
" W/ r9 {* g+ s$ B• 金工, 備有洗滌液再循環或焚化的系統除外; 7 g! w$ P% k. `2 F! G) n% W
• 紙漿和造紙加工;
1 W& y; J4 {# C5 v1 F• 化妝品;
7 }2 h; P/ B' d• 其他個人護理用品,殺精劑除外; 9 |( W2 y) r% Q* q' X9 q
• 殺蟲劑和除生物劑的處方。 : ~7 l! n. P+ W: P4 x
来源:STC 李昊鹏 |
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