|
|
1.What are they used for? 相關用途 1 t# E* |3 s3 h! X6 U$ w+ u! o
& t K5 ~) [: _ x
Alkylphenols (APs) and alkylphenol ethoxylates (APEOs) are auxiliary chemicals used in different industries. They
' {( q8 r7 F B7 X1 `* Jare good emulsifiers and wetting agents and thus have been used widely in different industrial cleaning systems
/ ~% X I( M; o9 w; U9 ?$ O; Z Tsuch as textile and leather processing, pulp and paper manufacturing, metal working, and agriculture. They are 9 O3 o5 u0 B+ h/ Q3 z4 p
also used as domestic cleaning agents and co-formulants in pesticides and biocides. 0 @. R8 x$ i! }0 C+ O) U- W5 N
In particular, NP and NPEO (under the family of APs and APEOs respectively) are extensively used as detergent
5 j, n& r+ u( h$ n. O* _auxiliaries in scouring and bleaching process of fibres for removing the fibres impurities such as wax, seed, etc in
0 W0 Q* v2 W2 K* m9 P o1 ftextile wet processing. * g. I, w" i% s% T
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
: I7 ~0 ~! w/ s) s [2 q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 7 L/ _- d! C0 G8 V
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
! q1 @8 y% L4 s& I6 v滌劑中,以及殺蟲劑和除生物劑的處方。 $ I7 ?, q5 c- o( v6 F8 @4 Y
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 5 Q2 i6 h7 u& d2 }; A
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 " P8 v( j- s0 ]3 a1 X; _$ 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。 ) k' y7 ^6 C( X
- s4 Z+ ^+ Q0 a2.What are the problems? 相關問題
' k+ O1 U# s1 F+ a. W4 y" B6 {3 {9 x) g* ~: C, Z2 E5 d5 ?
Since APs and APEOs are non-biodegradable, they cause severe environmental problems when they are released 5 r/ S0 U4 }7 U n1 U l
to the environment as discharges or emissions. They are potent endocrine disrupters to the aquatic environment % w5 ^# L2 u" i! D. ~! Y
and can cause feminisation in male fish. As a result, the fertility or reproductive capability of the fish is reduced
. |9 }6 N( c8 @5 M# zand populations are in danger of shrinking. 2 _8 x. d2 ?6 b* m5 z9 `1 R, r
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 7 t$ _( W3 E$ O1 ~) Z5 o6 m9 F
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 % e4 c2 i" J6 G6 @' X0 _* h
魚的生產力或繁殖率下降,從而使魚的種群有減少的危機。
" s" O+ W' j. T% _1 b/ b5 \& X0 C& E3 o! t) W& A: J
3.What are the measures? 相關措施 6 p/ i# B8 p* o& q% |1 {
4 F( v' s! ~& U+ ]3 ~2 t e7 N, C+ kWithin the Directive 2003/53/EC published on 18 June 2003, it was added to the Directive 76/769/EEC 6 j6 D, X! ~# w7 p
restrictions on the marketing and use of the nonylphenol (NP) and nonylphenol ethoxylate (NPEOs) summarized as 5 J! A- v" @9 w5 I
below:
, u( I( o( F$ d) m" d( G ^By 17 January 2005, except for pesticides or biocides which have been granted by existing national 5 a# V3 s- V4 }6 }5 H
authorizations the use of NPEOs as a co-formulant, nonylphenol & nonylphenol ethoxylate may not be used in 7 ]6 T2 T* K# E4 f. t
concentrations equal or higher than 0.1% (equivalent to 1,000ppm) by mass for the following purposes:
+ b. ?. Q! R, ^, O0 N% n" h* V8 p• industrial and institutional cleaning except those systems where the washing liquid is recycled or incinerated;
8 _2 x- x. C) x: i" i• domestic cleaning;
. w* R! O. |) f! @ G• textiles and leather processing except those without release into waste water or those with special treatments 6 p# e- `7 G% g# O
to remove the organic fraction completely prior to the release;
P! c- t$ }8 H; h- B/ p• emulsifier in agricultural teat dips; 0 ]7 Z2 I. n5 b; c, t& ?! \
• metal working except those systems where the washing liquid isrecycled or incinerated;
- w$ @9 w5 x1 k \• manufacturing of pulp and paper; - Y( y" t( |! m+ c3 z; B, P) G
• cosmetic products;
* j; W$ L% s; M• other personal care products except spermicides;
! _# Y* o; J' W0 H7 m' D" E• co-formulants in pesticides and biocides.
3 N. [4 T P% @% I5 B2003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 * y' m1 y; N+ i7 u, X! `
(NP)和壬基酚乙氧基化物(NPEOs),概述如下:
/ b a& |. W' p& K5 U) A# W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
2 ^" \4 `7 v. B0 \, G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 ):
5 M% L& g( H! |% ?6 c• 工業和公共清潔,備有洗滌液再循環或焚化的系統除外; 8 Z# x/ P* V6 E) F
• 家庭清潔; " _# w$ i; {; h d3 C
• 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; ' K2 H$ X v E* w$ ^
• 農用乳頭消毒液的乳化劑;
& r& c! s1 Z3 E/ D! N• 金工, 備有洗滌液再循環或焚化的系統除外;
% h4 v8 Z! t( _' [• 紙漿和造紙加工; & y" m* k# \4 D9 S {7 j# [+ T6 k: G* {% E
• 化妝品;
, m8 `6 Q8 j" y3 d! U) @• 其他個人護理用品,殺精劑除外; ( {3 s9 o# x$ E, m2 {; b w
• 殺蟲劑和除生物劑的處方。 1 D7 d1 P1 d* U# j* v: n
来源:STC 李昊鹏 |
|