??è3 £hy £?± 3trT¥43
龚泰石于祚斌张伟尹静
( + YDD SDy? 3DìaDDù? ?,??,300050)
K1"¥:观察酸性电解水(AEW)对水中微生物的杀灭效果。ZE:在AEW中或稀释
后的AEW中加入一定浓度的E.Coli、f2噬菌体和芽胞,作用一定时间后取样、培养、计算。2T:
TOxC为0.4mg·L-1的AEW稀释液作用10min可有效杀灭E.Coli;TOxC为21mg·L-1的AEW作
用2min可有效杀灭f2噬菌体;TOxC为65mg·L-1的AEW作用10min可有效杀灭枯草芽孢黑色
变种。2 ?:AEW对水中微生物有高效、速效杀灭效果。贮存AEW最好用玻璃瓶或塑料瓶,密
封避光保存。
1oM: ??è3 £,hy, ? )
?ms ?|:Q93-334óDS M ?:AócI|:1001-5248(2000)02-0086-03
訥? £hy4 o?4 3á、 {# P¨
?ì??iBt?@-),? 3á H31h{B
?¥?ye ,^ê?ìa?。y7?D?m
? ì ?÷eL、úr、íê?¥??hy4。í
M ??°''?¥B? ??è3 £(AEW) 7 S?
| ì¥?i。μ'' V ü,AEW?? 3áeL,7
OT1hy4 P¨, μúr、 ?r、 ¨〔1~3〕。°'',X<W¨?D ?、:C、1 ?、
|¥??、 g8、It、 J?Fy?、 v ?、 £T#
? ?hy〔4〕。''ó?o
á ìù?¥AEW
¥hyrT。
1? DZE
1.1hy4= oseU ?)(RCl2),0??yì
3á。AEWhyA?á ìù?¥AEW 3? 3
á。AEW 3??1? V? T 71è÷#° @è
3¢F?。° @è3¢?ê?K?§¥ va?
e、ê? va?e-W¥?μèe、sY¨
?%??μèe¥??e、#ê???e-
W¥??? ?0?DF?。a?e、 ?0?D
??e¥?? (μé £ d,??μ ?Y¥ ??
è3 £? d? ?Y|¥a?è3 £? d〔5〕。
3á H,o?|1 ? £??Y £Y? 3?¥é £
d,¤Yè÷,?? {?èaé £ @ ?? ? e?
èf,'' V @?]i¥AEWhyA。
1.2 )?#_ZEv?? )(E.Coli):ATCC
8099é,¨ rEé?_; ` )8f2:7? )E.
Coli285é,¨ `êE_; j¤è1??M?:
ATCC9372é,¨?Yüe`?E_。
1.3??4 k?SE? 3?1988.9《hy/
??S》?ê。
1.4? ê ) k50mlAEW?F?B?
¥± 3t,T¨B? HWaF???4,|1.0ml
T± 3t_,] HTB?ü?"?, ?B k×ˉ
5Q。
1.5?i k|j eT、 ? T# +¨ £ˉ??
vl??''M]¥?,è?/ á?E;、
á7i ü、í g7E;、í g7i üHq/?i1
? £è3a¥]é] ¥è3 £,43ò? ?′ ?
ib HW¥M?。
1.6 £éspH′:¨pHS-3? ?3 T ?9
??;9?ti(TOxC):? E??([μr o
i9);è? q:¨ ??á3 TtDShmmeter??。
22TD) ?
2.1??4¥ê4YVê ?E.Coli kV ü:
¨1.0ml0.32mol·L-1Na2S2O3·AT¨?500ml
cTOxC121.0mg·L-1¥AEW,?r??? k ?
??¥1p(V1)。
·86·3b +?]D?2000M2?18 ?2ùJPrevMedChinPLAApril2000Vol18No.2
2.2E.Coli¥ê ?rT|1 ? £Y? L¨
é?è3,V|、 sY¤??]pH′¥è
3 £,E.ColiT¨10min,hyrTnV2。V
V2 V?,AEWμhyrT,<a?è3 £íhy
rT,?pH′¥¥? £íhyrT。
2.3 ` )8f2¥ê ?rT|1 ? £è3a, ?
¤AEW¥pH′12.67,TOxC121.0mg·L-1。
AEW?F? ) 1220pfu·ml-1¥f2,T¨2mina
|"_?,?_f2。
2.4èê ?rT¨1 ? £Tè3e £ ?¤
AEW¥pH′12.43,TOxC165.0mg·L-1。 6?
?¨μr oi165.0mg·L-1¥RCl2¥? £T
1,2TnV3。V3V ü,10minaAEW??_
è,?RCl2¥? £??_。
V1òF??4 k2T
sF? =E.Coli ?(cfu·ml-1)
è3 £+ )A0
(è3 £+??4)+ )A337
(è3 £+ )A)+??40
(1 ? £+??4)+ )A345
?è )v306
?¤? )?!v0
V2?]pH′AEWê )rT
AEW
pH′
? =E.Coli ?*(cfu·ml-1)
è3 £¥? £■
2.63…92
3.27…104
5.80…99
8.00…△85
10.2290△84
*v1116cfu·ml-1;
■1?? < £¥?¥HCl·ANaOH·A;
△1| £。
V3AEWDRCl2?]T¨ HW·A?
? =è ?(cfu·ml-1)
hyA
T¨ HW(min)
0103060120
AEW340…………
RCl2¥? £3405………
2.5?] d¥AEW¥ê )rT1 h ?
?,¨ g r? < £¥?2mmol·L-1¥NaCl·ATè
3eA,¤AEW¥pH′2.70,TOxC39.8mg·L-1。
|??]1 è d,F?E.ColiT¨10minaF
?Na2S2O3??hy, 6?¨TOxCM?¥RCl2T
1 k,2TnV4。?AEW¥i d?TOxC
0.4mg·L-1 H,T¨10minˉ?_E.Coli,hy
rT<?RCl2。
V4?] d ?/ ?hy £?? =
E.Coli ?*(cfu·ml-1)
d ?RCl2AEW
0……
5……
10……
50……
10048…
200280168
*v325cfu·ml-1
2.6hy ??sV2V ü,??? ^
AEW?¥ ?? ? )T¨。VV3,V4 V?,
TOxCM] H,AEWhyrTz?RCl2, a üAEW
¥hy ?DRCl2???M]。1 éB? 3
hy ?,á ì?¨ g r? < £F?]è3é¥
?¥ £·Aé? è3,43 è3a¥AEW¥μ
1? ?#hyrT。VV5 V?,e £??cCl-
H,]"μ?ú¥TOxC? z¥ê )rT, a üè
3 Há 3 "HOCl[?¥ ??té,?s
B§ V?i/ Q?:
20H--2e※〔O〕+H2O※H2O2
4OH--4e※2H2O+02
〔O〕+O2※O3
yN V?μH2O2、O3、〔O〕?<??hy4á 3,
7 ? ì?HOCl]T¨,V7 P1 ? £è3a
μ÷z¥ê )rT。 6?,VV5 V?è3 g r?
< £9μê )T¨, a üe £?o1cμ
¥
è3é,? V[è3 μê )T¨¥AEW。 6?
F??] ?0,5 ?0a,á 3¥TOxC
ú。
2.7?i k2T +¨ £ˉ?i¥è3 £, ??
ò? ? (μ üAM?:pH′ 6ú,TOxC??,7O
? ?M?? y。 ? ??¥AEW ?ib?
·87·3b +?]D?2000M4?18 ?2ùJPrevMedChinPLAApril2000Vol.18No.2
V5?]| ?0¥¥? £è3??¥AEW¥? ?#ê )rT*
¥? £? ?è? q(μs·cm-1)
AEW
TOxC
(mg·L-1)
pH′
? = ) ? ?
(cfu·ml-1)
? < £+NaCl14020.612.81…
? < £+NaNO313410.492.84…
? < £+Na2SO41388.502.98…
? < £+Na2CO31384.347.63…
? < £+Na3PO4·12H2O1708.324.83…
? < £60.364.37…
?:òè3é? i (11mmol·L-1, £ @ (1360ml·min-1。
*vE.Coli1105cfu·ml-1
?¥9F,pH′、è? qM? (? üA,·TOxCμ
?/?,? á?E;?i H,/?K ¤。?
TOxC130.0mg·L-1¥eA á?E;¥j eT
? T?ib5da,TOxCü/?110.0mg·
L-1,?ib60da,TOxCˉμ5.1mg·L-1,ˉμh
yrT, ??i HW¥üé,TOxC¥/? ? ?
¤。
8
? ?,AEW ^B???¥úrhy4,
E.Coli、f2?è μ z¥ê ?rT,hy ?
V? ^HOCl、H2O2、O3〔O〕??hy4¥]T
¨。AEW?iKz¨j eT ? T, áE;,
?R¨á ??。
? IóD
1b £l?. ??èê £のêhy、ê )r?. S?,
1994,40(1):55
2l? z.è3 £の???. J?と 7?,1998,33
(3):8
3ItoK,NishidaT,MuraiS.Inhibitoryeffectsofacidwater
preparedbyanelectrolysisapparatusonearlyplaqueforma-
tiononspecimensofdentine.JClinperiodontol,1996,23
(5):471
4óBSí.< ??è3 £のê )と?¨. J?と
7?,1998,33(3):5
5 ü F,??\,f??.??è3 £? 3.?S
?99200540.X,1999
EXPERIMENTALOBSERVATIONONEFFICACYOFACIDELECTROLYZED
WATERINKILLINGMICROORGANISMSINWATER
GongTaishiYuZuobinZhangWeiYinJing
(InstituteofHygieneandEnvironmentalMedicine,AcademyofMilitaryMedicalSciences,Tianjin,300050)
ABSTRACTObjective:Toobservetheefficacyofacidelectrolyzedwater(AEW)inkillingmicroorganismsin
water.Methods:E.coli,bacteriophagef2orsporesofBacillussubtilisvariatuswereaddedintoAEWordilutedAEW
andkilledforacertaintouchtime.Watersamplesweredrawnandthemicroorganismswereculturedandcounted.Re-
sults:DilutedAEWcontainingTOxC0.4mg·L-1couldefficientlykillEscherichiacoliin10min;AEWcontaining
TOxC21.0mg·L-1couldefficientlykillbacteriophagef2in2min;AEWcontainingTOxC65.0mg·L-1couldefficient-
lykillsporesofBacillussubtilisvariatusnigerin10min.Conclusion:AEWhadhigherandfasterefficacyinkilling
somemicroorganismsinwater.AEWhadbetterbestoredinglassorplasticbottleswithairtightandlight-free.
KEYWORDS:acidelectrolyzedwater,disinfection,sterilization
( là:1999-05-24?í:2000-02-24)
·88·3b +?]D?2000M2?18 ?2ùJPrevMedChinPLAApril2000Vol18No.2
|
|