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1.What are they used for? 相關用途 7 Z. T! v* i* d1 M) h2 S1 o
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Alkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They # }+ i* G6 `! b8 M
are good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems
# b7 A) h" E8 ~0 N& C8 O7 b. j4 Dsuch as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are O( ^- F+ U$ V. [
also used as domestic cleaning agents and co-formulants in pesticides and biocides. + V! Q. M* |5 Q- M2 O! [ X1 N. O
In particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent $ Z& y- l5 w( z B
auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in
* P1 U( N% B, c9 Mtextile wet processing. " d E' Z, J, K' B" H1 @
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
: G; i6 m" L6 b& _8 a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 6 G& d- p( h" Y4 [4 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 3 P$ {$ x: n, c9 Y
滌劑中,以及殺蟲劑和除生物劑的處方。
: v9 Z' _1 h/ b9 B8 r9 R% P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
7 }7 u! n7 f% j" A" [" 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 . |" C \& Y3 m0 l e
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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2.What are the problems? 相關問題 % S! v5 ?4 I( [
2 _( Z' d" g& m" J- YSince APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released
) r8 X' {# n% `( n6 g9 {- u( vto the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment
+ [9 Q# U$ G3 l+ }' T% e& U0 l7 pand can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced
- M5 e- V- x1 Z4 M5 v/ ~9 wand populations are in danger of shrinking.
; a0 ~/ Z9 g3 i0 ?; \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
8 c# O* \( F3 C; d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 " R3 ^& u* X( _. g4 Z5 S
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 _9 x2 I; r4 }9 M8 H4 m6 T$ T3.What are the measures? 相關措施
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: q+ {+ V7 r" E1 gWithin the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC / u' S# G. u: u7 |8 V
restrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as ! s- L6 u) \/ W; `0 X
below: * _+ h; p' R; _! r( \( t* Z
By 17 January 2005, except for pesticides or biocides which have been granted by existing national $ x$ T. s7 K" ]+ G6 y
authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in
: p' @3 T, S4 ]( ^9 A7 Oconcentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes: ' _, @" i# ^+ D. G7 K
• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated; , C S& l3 s! t) F1 o- {9 l
• domestic cleaning; 1 C# H( k6 `; C' P: H( ~
• textiles and leather processing except those without release into waste water or those with special treatments 7 c9 z9 G9 ]0 K. o* M
to remove the organic fraction completely prior to the release; B5 o3 E' t1 C4 g$ `
• emulsifier in agricultural teat dips;
) A* r# R. @$ {8 J1 x7 q• metal working except those systems where the washing liquid isrecycled or incinerated;
; k: g% _9 F% a$ l% N. \6 l4 f• manufacturing of pulp and paper;
# u6 l+ Z' J$ R& }6 J5 V• cosmetic products; ( N! v# a1 ]0 ?& T" X
• other personal care products except spermicides; 4 \- L. G! @0 a# e
• co-formulants in pesticides and biocides.
+ Q4 L' F- |4 f" l9 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
, z* X) c* f3 A(NP)和壬基酚乙氧基化物(NPEOs),概述如下:
, R+ A8 w( O1 E$ V0 G) q* ]" k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
& Q u+ i" x' x* {5 z$ ^. }- {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 ):
a P3 d% c+ ~7 u• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外; 2 m* B L7 X9 G- K
• 家庭清潔; ( R0 S! Q! I! V: [+ M( h! \
• 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 O5 o, Z8 ^, ^, L" S• 農用乳頭消毒液的乳化劑; ' y5 u5 h: l, g2 ]
• 金工, 備有洗滌液再循環或焚化的系統除外;
8 s: @ C: q! w' T- W- C, D• 紙漿和造紙加工;
! h! T3 u& f3 s: F• 化妝品;
: U5 H# j. Y4 X2 y% N& @. R# S9 i• 其他個人護理用品,殺精劑除外;
, P/ \$ t& t1 @6 `1 `& b$ {: b9 a• 殺蟲劑和除生物劑的處方。
4 q; _3 Y+ d) K% w& J# Z- Q来源:STC 李昊鹏 |
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