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1.What are they used for? 相關用途 1 B: [' F7 N- P C/ Q
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Alkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They , S) V0 s( d+ W4 [
are good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems ) i+ U |, ], y3 A% A
such as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are
) |6 D) j8 C3 a, @% `also used as domestic cleaning agents and co-formulants in pesticides and biocides. - S' H+ Z9 p/ F4 @
In particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent * i$ e( x: N& }9 [- y) M& m& V
auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in
9 F0 w% f) @7 l. B6 ttextile wet processing.
5 l: o6 r8 ]/ ^, g0 k0 w s7 i. u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 $ o1 U: P6 n" d3 W
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 ; Z7 W% C6 ?7 ?) }
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 8 ~4 z! \1 l/ B& e
滌劑中,以及殺蟲劑和除生物劑的處方。
; D" D: w$ u) O/ f: J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
8 w. {; ?0 R* @. S8 h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 6 M* Y$ m) c8 n4 V, D- 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。
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1 \ t$ F6 K2 j% D& _! |2.What are the problems? 相關問題
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$ {$ x2 F7 p6 h/ Q) R/ n' }Since APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released . k. m8 H7 ^- _/ j7 \1 b" p
to the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment
; N, m2 b+ t0 `1 @and can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced ; U! ^$ Y/ f6 Z# r2 ^" k
and populations are in danger of shrinking. ( v% Z4 y3 o8 @% B# a7 e
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
3 |2 a2 z% H: h$ ]5 I x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 # _9 {" G7 c% I; u! v7 Y( s1 N
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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3.What are the measures? 相關措施
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+ c% O5 K4 _ v* JWithin the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC
/ n6 [: o- F* J+ F u2 Nrestrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as 2 B+ `- {: v3 b
below:
$ ~& |' n* n0 I% EBy 17 January 2005, except for pesticides or biocides which have been granted by existing national
! [! T o g8 b9 \* lauthorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in 6 H: H+ w8 A8 S f9 w7 M4 g0 v
concentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes: : q; M/ u$ P( I
• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated;
7 P4 o F1 v" _! \/ J3 P' A• domestic cleaning;
0 f" ]$ `- L$ x+ ?" a/ ]• textiles and leather processing except those without release into waste water or those with special treatments
& M! j9 n9 C+ M" L7 ~to remove the organic fraction completely prior to the release; 3 P8 i8 t O, \) [+ I+ m' E
• emulsifier in agricultural teat dips;
3 ~, ~3 |# p7 k# _1 u- } Y• metal working except those systems where the washing liquid isrecycled or incinerated;
" P( N; c+ s( W$ m& u% ^• manufacturing of pulp and paper; / s! {5 R7 Q# ^% G
• cosmetic products;
* F, D" J; M( U/ q2 s( b- v• other personal care products except spermicides; ) p# c& i, Q! R4 l
• co-formulants in pesticides and biocides.
/ H4 E: u# F# E! a2003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 $ c* N# d9 q* H3 |: X$ t
(NP)和壬基酚乙氧基化物(NPEOs),概述如下: * V5 X* h! y# E+ R/ e0 M
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
; [+ p# u4 c# W/ k3 B* u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 ): & q1 G. t g1 B* i
• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外;
3 ^, u! V" A3 T+ @' W1 U• 家庭清潔;
/ v6 U) o0 @5 q6 r• 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; 7 Q/ _9 [* [- {6 G5 o
• 農用乳頭消毒液的乳化劑; 5 N% B0 g$ L. S' N- B0 Y
• 金工, 備有洗滌液再循環或焚化的系統除外;
0 d2 K* g+ w) A9 i• 紙漿和造紙加工; & i1 ~2 p. j6 D9 e9 l. m4 J
• 化妝品; " b. M5 u6 O) k4 f: I
• 其他個人護理用品,殺精劑除外; ! r5 I, l/ j/ ^1 V6 j' H
• 殺蟲劑和除生物劑的處方。
8 w; V% c2 e; P; N来源:STC 李昊鹏 |
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