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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 3 O7 X5 b1 Z$ f; X) j2 O. W; _) Z7 g
are good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems
) v2 ~( d" E, Z( E2 X# j4 bsuch as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are * ~: }- w2 m* ~# D7 V
also used as domestic cleaning agents and co-formulants in pesticides and biocides. " ]! {* a) R, H" ?( j8 ?7 X
In particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent ! O$ |5 @" n8 `1 z6 ]5 M- o
auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in ( U9 [4 \0 R/ s9 H! |
textile wet processing. : X, X! Y0 U1 Q& _5 N% }8 L! g N( l
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 ! u5 i& Z7 Y% i
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 & _& r6 g2 Q" M& y9 U) C" K- i/ a
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 4 l- S+ ~4 o* m; u, [, ?8 l& J4 C
滌劑中,以及殺蟲劑和除生物劑的處方。 1 i# D6 r* W" W) Y- a4 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 ! H2 _8 g0 y! E9 t) r
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 A% M( j" n4 w2 c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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4 \# L. w2 d! j' C2.What are the problems? 相關問題
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Since APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released
6 J0 t H( l Z. [* e+ uto the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment
' P' }- D% y5 r" T" F% band can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced ! P4 `5 g% c4 U: L
and populations are in danger of shrinking. 1 Q, j1 U+ m P
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
& G' k$ i* y% Q3 O& J- n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 8 E; x# s' j5 R( x2 i8 i, i
魚的生產力或繁殖率下降,從而使魚的種群有減少的危機。 - Y2 v0 b3 A H$ A, s7 i7 [' P
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3.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 * e% \. q! P; c1 d; B* v7 u# |2 g1 h6 X
restrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as . x+ c* K4 A5 @8 s: _' K: t
below:
9 `/ d: e6 K A, K1 e1 BBy 17 January 2005, except for pesticides or biocides which have been granted by existing national 6 F/ O# @1 f7 o- J8 I$ r$ E
authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in 8 J, A! q0 P5 V" w _
concentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes: 5 _/ l4 O( I6 |+ z: f9 P0 c9 b
• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated;
1 R) F' G* M) m& f( W8 B, c }• domestic cleaning;
% J/ A, p, G3 l; n5 d• textiles and leather processing except those without release into waste water or those with special treatments " Q9 G8 O4 f J! m
to remove the organic fraction completely prior to the release; # j- y, N" h! W Y
• emulsifier in agricultural teat dips;
, A8 @* P0 @# Z* R& Z• metal working except those systems where the washing liquid isrecycled or incinerated; 8 U0 R" R5 B7 x5 u
• manufacturing of pulp and paper;
8 y4 @; U' b4 P5 O& k: m- p• cosmetic products; 4 X+ i3 ~- ]( T8 h' t S) o5 z$ ]
• other personal care products except spermicides;
5 P* F& f" K$ T F& q! N% V o" d4 Z6 o• co-formulants in pesticides and biocides. : I7 s6 v) _: s3 F9 X
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
% ]8 x" W' p$ \ t* Z; W(NP)和壬基酚乙氧基化物(NPEOs),概述如下:
0 S" h9 { W! a$ y& Q( Y3 r- l, H) 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 " x) Y* Z& p8 D- h/ A- G& f
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 ):
/ K5 W y% {( f* x X+ k- s• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外; / r" Q4 m! |( B& E
• 家庭清潔;
7 {$ i" S" ]$ V: H/ v• 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; 6 v3 I+ p0 n- w
• 農用乳頭消毒液的乳化劑; . q& \: h& u) L8 N
• 金工, 備有洗滌液再循環或焚化的系統除外; 6 z" }8 B4 P0 ^5 Y1 T3 g% g' a5 O
• 紙漿和造紙加工;
- x# I" \5 p% k! i) r3 k1 ]1 f• 化妝品;
- N8 Z% |; C& O• 其他個人護理用品,殺精劑除外; 5 H+ n* h9 q+ }) ]9 s
• 殺蟲劑和除生物劑的處方。 % }* w& L$ I3 H" P5 P
来源:STC 李昊鹏 |
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