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1.What are they used for? 相關用途
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' S e) B2 R! c- O. a2 F- KAlkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They 3 v, {; g* F$ j8 V
are good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems
! C% z7 _1 A* T: k+ Z$ L+ Vsuch as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are
& K4 E- N% V5 i2 G/ {8 l6 A$ A. Ialso used as domestic cleaning agents and co-formulants in pesticides and biocides. ) B5 r6 c$ g" d* o* E
In particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent " Q: l0 c1 v' P1 \! h: _; F1 _2 ?
auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in ) c/ S/ E% @5 p! ?, \* F
textile wet processing.
7 I b5 ~+ M% ~; q5 O! E( [+ ^' b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 ; i# G7 X7 s0 N
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 m. n4 k9 ~1 z6 C5 o
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 + @- r) S; e1 F
滌劑中,以及殺蟲劑和除生物劑的處方。
# J$ J/ S6 A5 R+ w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
5 @/ c2 U" ?0 z/ c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
[8 D3 h4 }& B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。 $ J6 G' I, r8 N; M0 x1 z
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2.What are the problems? 相關問題 ) i& x, @5 r+ ~7 V
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Since APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released . S4 Z9 u4 i0 s! Y3 `4 {! K
to the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment
; }! u: V7 F) v k. c0 aand can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced
2 u7 M y3 S+ | E8 V$ F+ D6 ^and populations are in danger of shrinking.
: y4 B8 N( ?* Q! a, Q0 e2 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
) m ]$ B9 R9 R o9 s L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 ' p! l* {* W4 g" h
魚的生產力或繁殖率下降,從而使魚的種群有減少的危機。 " n/ @+ n* @% f5 s' Z" J6 F
; o! x( w1 n: E# V$ p3.What are the measures? 相關措施 " J. c) Q3 D3 E/ P3 r7 ]
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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 h6 E; f& C, L2 T4 N
restrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as
( s* x+ f. d# U; U7 Ubelow:
: @) s7 `0 ?( b: a0 \. lBy 17 January 2005, except for pesticides or biocides which have been granted by existing national
* t% A- W/ p8 I( S' @authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in
9 [) m7 Z6 p/ C3 `concentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes:
/ s) P4 J7 D5 c' C• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated;
; {2 ^& r% L7 ]- Z7 T) `0 D) W• domestic cleaning; 4 @9 `% H; q% V) R) V
• textiles and leather processing except those without release into waste water or those with special treatments
. \0 d3 s2 I Vto remove the organic fraction completely prior to the release;
/ T4 ]4 G0 k ]9 H9 n( _• emulsifier in agricultural teat dips;
5 e" A( O# w0 o" _• metal working except those systems where the washing liquid isrecycled or incinerated;
6 M: a, L& m) U7 C• manufacturing of pulp and paper;
5 q! s* G) u3 I. [• cosmetic products; * H1 r) `1 V, p% s, k
• other personal care products except spermicides; 8 q! h+ t" O3 C! \. s4 j+ C1 r
• co-formulants in pesticides and biocides. 3 Y/ D3 ]$ _% o8 I' p% @
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
0 m# c( D$ S/ s) q(NP)和壬基酚乙氧基化物(NPEOs),概述如下:
8 ~% n$ R1 B/ @5 a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 . e: k5 p6 q x6 m) ]
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 ): - s7 R1 z2 c0 Z& l$ y% M
• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外;
* Q/ K8 D. o: h6 v• 家庭清潔;
! o% k2 {; {1 m6 z! _• 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;
! V' o+ W1 h+ P! }+ n• 農用乳頭消毒液的乳化劑; + M0 Z4 S! W* n# A! \. p ~
• 金工, 備有洗滌液再循環或焚化的系統除外; " y4 z& t9 F. p" ?8 \: \
• 紙漿和造紙加工; 0 |: U9 V h4 a, q$ m
• 化妝品; 0 c4 i2 g, y" P2 E+ x, _$ s
• 其他個人護理用品,殺精劑除外;
* K9 I+ _' b$ |( `" G) S* t; D• 殺蟲劑和除生物劑的處方。 : W7 f9 ]2 U: n: J5 F
来源:STC 李昊鹏 |
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