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1.What are they used for? 相關用途 " Q9 `2 T/ _1 v" S' `
3 ?$ r+ ?. w$ r- X5 u% u2 YAlkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They
' c2 O% ]" [0 n0 [5 N' [! W5 ware good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems
. y9 A9 j! P! c) Rsuch as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are
" S( S1 M, [% t: o- z2 halso used as domestic cleaning agents and co-formulants in pesticides and biocides.
7 D/ U: s- B) I! }9 S! FIn particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent # c) G2 W" d( |- i0 x3 r
auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in " @, J$ x3 _' n. P& s
textile wet processing.
. V, D* P4 h( F, V8 K( L! A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
% U4 {! i' J+ h- T S" s5 ~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 . x, j9 q0 p5 w F6 f8 R7 X
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 O* C2 }3 O7 @3 [0 T滌劑中,以及殺蟲劑和除生物劑的處方。
6 r. q- Z# r- q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 ; u& O0 M) G- `: U* D
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 W- ~% s) ?- G4 g( [6 z" ~6 Z5 y+ i, i ^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。 ( D: \% C; {6 Z" w' i2 c: L
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2.What are the problems? 相關問題 $ V7 R& ?8 }( V/ d* I( p# u! M% W, Y
2 }7 A, J2 |! p3 {Since APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released
0 x0 c9 @4 w7 j. `to the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment ; l2 j1 Y' \: p2 W0 T) u7 J ^7 t. {
and can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced
! V. {6 r' K! L8 t6 f4 f7 Jand populations are in danger of shrinking.
6 q) c- u! e, n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 ) T/ m+ C4 t( O. ^8 H
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 * U4 _/ J. P* _4 a" ]& ` z0 d6 l
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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% t/ e0 Z& [3 p, E9 J3.What are the measures? 相關措施
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9 @. ?7 O5 D: r; {2 Y7 Y0 wWithin the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC + L2 |+ n# Y6 \
restrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as
3 |3 u* N# K+ kbelow: 8 J) }* ~2 f; R# `8 x& d+ a7 G- O
By 17 January 2005, except for pesticides or biocides which have been granted by existing national
4 i& e* I: e7 A! N0 H5 M c" R% \authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in 9 t: Y5 v7 T5 @- K+ H
concentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes:
$ n$ u7 c2 a" |# d. H$ a' ]) {! d• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated;
% i5 V& O6 v5 C0 E• domestic cleaning; ' l4 M* D5 V' g) J
• textiles and leather processing except those without release into waste water or those with special treatments
2 V5 l3 l! K' W6 R' M. tto remove the organic fraction completely prior to the release;
, U; G& G% N$ P; X" b7 }! Q• emulsifier in agricultural teat dips;
+ S9 C( _" V0 F, m" f* I+ B• metal working except those systems where the washing liquid isrecycled or incinerated;
D+ s O! \' O: f• manufacturing of pulp and paper;
3 X, Y7 N' }8 c2 ~8 S5 |• cosmetic products; - b7 j, r( k; |7 D& t6 Y' J" A/ e
• other personal care products except spermicides; 9 k" P. z' _4 D' g5 J
• co-formulants in pesticides and biocides.
& u$ t5 \9 j. X7 R3 Q/ t1 q2003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 d4 t4 H/ Q6 J$ _; s
(NP)和壬基酚乙氧基化物(NPEOs),概述如下:
. f* v& O4 h7 O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
; z, T/ @) n# Y& A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 ):
( Q) h# @2 G% S m1 R• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外; 9 y% s/ s. A- n- p
• 家庭清潔; & I z# x) u# J- S) {. J
• 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 d$ ?% I$ o( a5 L
• 農用乳頭消毒液的乳化劑;
9 w, d5 E* P8 ^# q7 @• 金工, 備有洗滌液再循環或焚化的系統除外; 1 I7 X0 V2 W$ w, l9 B: a
• 紙漿和造紙加工;
" p& g/ ?8 H9 i8 m• 化妝品;
1 J* m( b8 k8 K0 n6 O• 其他個人護理用品,殺精劑除外; ! l9 H1 a0 n" {: N6 {
• 殺蟲劑和除生物劑的處方。 ( [7 S+ m% |' [ }
来源:STC 李昊鹏 |
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