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1.What are they used for? 相關用途
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Alkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They 4 o$ L* g/ Z8 d' [% k6 S2 k
are good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems 5 S4 u- X0 G p$ ?
such as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are
! l' n4 c: U7 `also used as domestic cleaning agents and co-formulants in pesticides and biocides.
, {% R/ t8 h4 Y# ^8 \; U' K0 o3 oIn particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent
j4 E. Z. `3 Y% l, B: zauxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in " T( D& n- q* Z& p3 v
textile wet processing. ! u; H. v/ ]$ ^0 w
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 9 I; W1 ^, Q# g' P
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 / h( y: S0 H( {, Z
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
- o" Q( t( `( q' I/ G) N2 a0 J滌劑中,以及殺蟲劑和除生物劑的處方。 3 n+ Z" a; d0 p! T$ u+ a+ |
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
* M3 S9 U( B: M4 A0 P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 " A( X8 g0 s& B' W
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。 - a: V0 O6 w& k7 |5 I% w- H: f
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2.What are the problems? 相關問題 8 [. _ s) `' C6 I# V4 \4 Q3 k
( ?2 z; L: J+ V9 ^5 Y2 CSince APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released
9 D B, [2 e! E( R4 Y8 v8 \to the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment
/ k, G" E" I% d; U7 G# d1 G vand can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced
( @8 E6 x3 D7 b" L# ]+ X5 qand populations are in danger of shrinking. 3 w3 F, q* V5 a4 P. J2 l
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 : k: D6 h: Q! S) e4 m' \
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
) W, t; G* c& c" C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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8 c* g" I2 H' P5 e5 ?9 j8 M3.What are the measures? 相關措施
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Within the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC A/ O1 W) D4 i# J" d4 G
restrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as 7 f# _7 j8 [( ~! g# m* b
below: , z" n& E3 U! G! Y b" W2 U* |, Z
By 17 January 2005, except for pesticides or biocides which have been granted by existing national 1 m4 M! M4 g: U& B$ F3 O. B7 F
authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in : S8 O' ^" Q m- n: [ }' W* }# }
concentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes: 2 Q! G& ^# @( h4 O! X7 R% q3 n
• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated;
* V- o! X! S. ]0 O2 ~2 D4 M) Y, ]• domestic cleaning; % n9 c4 P. k+ X8 W
• textiles and leather processing except those without release into waste water or those with special treatments
. o& U2 j3 {, Ato remove the organic fraction completely prior to the release;
8 Z- m2 m7 k, g5 f& Y! o• emulsifier in agricultural teat dips; $ j7 f) \& }# I$ {1 j4 ~' R# i
• metal working except those systems where the washing liquid isrecycled or incinerated;
) d2 Y0 Q6 p# F. v; D6 b+ L5 H• manufacturing of pulp and paper; 7 ~6 Z! d8 c2 I% T8 P+ ~% O; O6 }
• cosmetic products;
7 d5 {! k I4 R6 i• other personal care products except spermicides; ; {. K) N, [) a
• co-formulants in pesticides and biocides. : Z6 {" M2 K. d; R: \1 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
( R8 {# n( D, T i0 t(NP)和壬基酚乙氧基化物(NPEOs),概述如下: 9 U* s- ?" b3 T/ [; M: y+ `
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 R3 W/ ?: z9 M. `1 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 ): - z( j1 v( |2 z8 W( Y
• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外;
5 o& `2 \* @, Y B# B$ I• 家庭清潔; 6 r( ?# [# i& }( m* [! i4 H8 }
• 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;
5 U) `- K8 Z- I* d! r• 農用乳頭消毒液的乳化劑;
. W8 l- q. R3 v3 s9 {7 l• 金工, 備有洗滌液再循環或焚化的系統除外;
7 K+ E) @" w @9 }; O# v1 o• 紙漿和造紙加工; - O! P* v2 S- y' L; c# @8 B$ b
• 化妝品; ; ?! g2 G8 T% r- E9 q' F% E
• 其他個人護理用品,殺精劑除外; 5 m% A1 i: e. G* W+ k# F5 ]
• 殺蟲劑和除生物劑的處方。
& M s$ D+ q+ r, W来源:STC 李昊鹏 |
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