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020-87270252

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ԃԒ:

020-87270252

l(f)ϵ zyԇ̓x Ʒϵ
PSAl(f) ڒC ƄӳC ˮ̎l(f)
cҺl(f) ⶾC yнC ՚C nҚC

oˮ̎жcđ(yng)ñ^

ժҪĽB˶Ⱥͳڽoˮ̎еđ(yng)ãCԼ(jng)ԵȷMһϵеı^ŬF(xin)ˮSˮ̎ˇĸMṩһą

P(gun)I~ ˮ̎

he Comparison Between Chlorine Dioxide and Ozone in Application of Feed Water Treatment
Qiao yong Zhang yuxian
(School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P.R.China

Abstract In this article, we try to do some work for the improvements of the drinking water treatment process. The application of chlorine oxide (ClO2) and ozone (O3) is introduced. And a comprehensive comparasion is made on their mechanism, characteristics ; also, economic analyses are made.
Key words chlorine oxide ; ozone ; disinfect ; drinking water treatment

Ŀǰ҇oˮБ(yng)õҺȞSԴˮȾ׃UˮиNЙCĺ\Һa(chn)ȴЙCеĮa(chn)ͻ׃M˂ˮ|(zh)ҪIJߣȵĸȫ(jng)ɞoˮ̎һl(f)չ^ǰ;ǶȣClO2ͳO3

1.ȣClO2

1.1 ȵđ(yng)
    ʮoƌW(xu)Dary H.l(f)F(xin)ClO2wʮo40_ʼ(yng)ʳƷӹĚ켈Ư׺ˮă̎ڶȲcЙCﷴ(yng)THMsˮ̎Б(yng)ԽԽV1983ҭh(hun)֣EPAˮȼ麬0.1mg/L]ʹClO2 İȫԱl(wi)MWHOОA1Jϵĸ?lin)Qa(chn)ƷĿǰ͚WǧˮSClO2 ҇t켈ИI(y)𲽑(yng)ԁˮS

    ڽoˮ̎ClO2HЧ߀ɿ]ͶԭˮǰVǰMA(y)gԿζȷӻa(chn)ζȣֹ΢Lӏ^VҲȥˮеFiɫ⣬WһЩҌClO2 O3 Cl2Y(ji)ˮ̎ȡ^õЧ

1.2 ȵ|(zh)
    ȣClO2أ20棩һNSGɫĚwcȚ⡢ƵĴ̼Ԛζ67.45ȿ՚c-59棬c11

    ClO2 Oˮcˮ(yng)22rܽȼsȵ5_2.9g/LClO2 ˮеܽSض߶ͬrȷӵӽY(ji)(gu)mDz͠B(ti)ˮЅsԾۺϠB(ti)@ClO2 ˮѸٔUɢʮClO2 ˮҺד]l(f)^ߜضc•ClO2 - cClO3 - (yng)ܹ͜ر

    (j)BClO2 ڳ¿ɉstɫҺwOד]l(f)O(wn)Cеײ|ЙCﶼl(f)ըڿ՚еweȳ^10%ˮНȳ^30%rҲl(f)ը^ClO2 Һ10g/L•r]бըΣU

    ClO2 ضȺ͹⾀У܉sMҺ\ݔֻʹÕrF(xin)RrƂ
1.3 ȵC
鏊ClO2 ԗl¾к܏ԣ
ClO2 + 4H+ + 5e = Cl- + 2H2O
ˮSpH7ԗl
ClO2 + e = ClO2 -
ClO2 - + 2H2O + 4e = Cl- + 4OH -
    ClO2 ܌ˮS2- SO32- NO2 - ߀ԭȥ߀ȥˮеFe2+ Mn2+ ؽxӵˮЙCCl2HȡClO2 ߀ԭ܌ֳȽҽa(chn)ﲻȼʽ

    ClO2 һNVVЧĚCѿߡȾõĚЧP(gun)ClO2 CɶNһJClO2 ΢:^õʹ͸ܝB͸(ni)c-SHø(yng)ʹ֮ѸʧƼ(ni)|(zh)ĺϳɣĶ_΢Ŀ

    ڼdžμĵͼ΢øϵֲڼĤܵClO2 ʧ˺̈́:øϵλڼ|(zh)֮ܵϵy(tng)ıoClO2yԺøֱӽ|䌦˺̈́Σ^С

1.4 ȵ
    ClO2-^ˮЙCx
1 ClO2-ȵ2.5ѸٚˮеIJԭѿxȣ
2 cȲͬClO2-ܲpHֵӰ푡@ҪᚢȄt횢
3 ClO2cȰ(yng)ںߵˮҲ԰l(f)]ܺõĚʹtܴܵӰ
4 ClO2SˮߜӴ󣬏ĶaˮClO2ˮܽȵ½
5 ClO2ĚڹܾW(wng)гm(x)LrgʌĜЧȳȸЧ
6 ClO2^ÓɫȥζFiЧ
7 ClO2ֻxcijЩЙCM(yng)𽵽麬FĮa(chn)a(chn)ȻЙCͶСsͶ40%,ҲˮаӰClO2ʹˮȼp90%

1.5 ȵƂ估(jng)Ա^
    ClO2-Ƃ䷽лW(xu)(yng)늽ʳ}xӽQлW(xu)늽ⷨa(chn)ϑ(yng)^
1.5.1 W(xu)
W(xu)(yng)ȡClO2ķУ
1 }cc(yng)
5NaClO2 + 4HCl = 5NaCl + 4HCl + 2H2O
2 }cc(yng)
2NaClO 3 + 4HCl = 2NaCl + 2ClO2 + 2H2O
3 ҺϷ(yng)
2NaClO2 + Cl2 = 2NaCl + 2ClO2
    (j)3ƵClO2l(f)ʹÕrwcڷ(yng)Կ՚ϡጵȚͨ^(yng)@ӿڷ(yng)^һֱ^ācʹȫȚⶼc(yng)Ķa(chn)лȚNaClO2rF@Nijɱc\M^yˮ̎ƏV

    ĿǰһՄĻW(xu)ȡClO2ָ1@Na(chn)Ҏ(gu)ģ^СO(sh)了ڌF(xin)Ԅӻmˮ̎a(chn)(yng)Ć}ͬNaClO2rFԓClO2Փa(chn)ֻ80%ˣй˾ƳʹNaClO3 H2SO4 (yng)ȡClO2ĶȰl(f)䷴(yng)ԭǣ
2NaClO3 + 2NaCl + 2H2SO4 = 2ClO2 + Cl2 + 2H2O + 2Na2SO4
    (yng)Еa(chn)ȚÑٸ(j)Ҫw
2NaClO2 + Cl2 = 2NaCl + 2ClO2
    (j)QԓNl(f)a(chn)ĻϚwClO2 ռ70%30%Cl2 ʹüClO2ĺ_95%ԓl(f)r񲻵ͬҎ(gu)늽ⷨl(f)1/2ʹNaClO2 İl(f)r߀O(sh)Bm(x)\D(zhun)ҲgЪʹl(f){(dio)ͬrNaClO3rֻNaClO2rʮ֮һ\M^һĸ

1.5.2 늽ⷨ
    늽NaClҺa(chn)ClO2ʳ}ԭϣøĤ늽⹤ˇꖘOעʳ}ˮꎘOҼԁˮͨԴʹxӶwĶꖘOҼ늘O܇a(chn)ClO2 O3 H2O2 Cl2 ȻϚwa(chn)пͨ^늽ض}ˮꖘOClO3-ȷClO2 a(chn)ʡa(chn)ĻϚwClO2Hռ10%O3 H2O2 󲿷Ț@͟oҺȱcͬrClO2ҲyԾ_ӋO(sh)(f)sדpIJrF\оSoyĿǰ(ni)Զô˷

    ҲЈQ늽ⷨa(chn)һNClO2ď(f)ɷClO2ռ37%Cl2ռ27%O3ռ15%H2O2ռ10%ռ11%ٶO3 > ClO2 > Cl2 O(sh)3 ClO2 ȽˮеЙCֽM27%Cl2ɱCˮȡ@͚ˮ΢P(wn)ˮ|(zh)кܺõЧ

    Һw(wn)ClO2w(wn)ClO2о(j)P(gun)YͶ10mg/LҺMˎɱs0.022Ԫ/ˮHClNaClO2ȡClO20.5mg/LͶӣˮɱs0.02ԪҺw(wn)ԶȺ͹w(wn)Զˎɱքeÿˮ0.35Ԫ0.12ԪͶ0.5mg/L@Ȼ(jng)^

1.6 ʹöȴڵĆ}
    ClO2ˮк50%70%D(zhun)׃?yu)ClO2-cClO3-ܶClO2-ClO3-ѪtГpմxиɔ_߀ʹѪҺđ̴EPAhrClO2 ClO2-ClO3-<1.0mg/LʹȺӰH(yng)ClO2Ą0.5mg/L

    ClO2ֽЙC^xԡȥˮеFe2+Mn2+軯ӵٰ尷ˮеIJζsȩͪЙC(do)ȥص

    |(zh)^ױը䱾ҲжԡʹClO2rҪʮעⰲȫһClO2Ƃϵy(tng)Б(yng)ԭϡጝֹ`(yng)(yng)ȫʩClO2Ҫ͜رܹClO2܇gûNO(sh)õͨLQO(sh)

2. O3

2.1 đ(yng)
    1840ʿW(xu)SchnbeinC˳Ĵ1886귨Meritenusl(f)F(xin)К1893mȌ(yng)ˮ̎1906귨NicenjڴҎ(gu)ģˮSˮ̎нvʷ

    ٶȿܽFiγɸ߃rʹ֮ȥɌ軯ӵжк|(zh)o|(zh)ɫ|(zh)ĶpζɫȣɌyֽĴЙCֽСЙCʹ֮オʹóA(y)̎߀΢ã߳ˮˮ|(zh)(yng)ó̎^Юa(chn)к|(zh)

    ĿǰǧˮSʹóM̎ښWҪѰѳȥˮȾһNҪֶˮȃ20o70ԁS߀(yng)ڳˮI(y)Uˮѭh(hun)sˮ̎Mокܶɹӡ70_ʼ҇Ҳ_ʼóˇ̎ȾˮˮԴԇоF(xin)ڇ(ni)Д(sh)ʮˮS(yng)ڌHa(chn)

2.2 |(zh)
    O3һNĴ̼ԚζIJ(wn)wž\{ɫҺB(ti){ɫO3dzģˮе߀ԭλ2.07VȞ1.36VȞ1.50VO3^gԡ

    O3ڿ՚ЕзֽO2ͬrųğȳ^25%rױըһ՚O3ĝȲ^10%l(f)ը

    ژ˜ʉ͜ضܽȱ10ȿ՚250rˮеܽȿ_1.371g/LO3ˮв(wn)ںs|(zh)ˮҺѸٷֽO2a(chn)OĆԭOuOHȾИOõ|(zh)u߀ԭλ2.80V20rO3ԁˮеİ˥ڼs20犡

2.3 C
    O3ˮl(f)ɷN(yng)һNֱ(yng)ٶxԸcӵȷ廯PҴȷ(yng)һNO3ֽa(chn)uɻĶl(f)朷(yng)˷(yng)߀a(chn)ʮֻЏĆԭO˲rֽˮЙC|(zh)΢
O3 O2 +O
O+ H2O 2OH
    uǏ߻Bi(yng)ʹˮЙCֽ⡣

    ҺpHֵ7rO3Էֽӄɻͷ(yng)ռ(do)λ@N(yng)ٶȿ죬xԵ

    C֪O3ˮ̎ˮеĶ(sh)ЙCʹ֮FiȟoC߀ԭ|(zh)O3кܸߵ߀ԭλƉĻֽ⼚ļͨ^΢:ĤѸٔUɢ(ni)еøЙCƉ会ĤMY(ji)(gu)ĵ|(zh)ǺȏĶ(do)¼O3 ܉嚢ѿߵ^΢Ҳ𵽺ܺõĜ

2.4
1 O3ЧğoȾdzģO3 >ClO2 >Cl2 >NH2Clȵ2ȵĔ(sh)ٱ܉ֽˮеЙCȥoC߀ԭ|(zh)ܘOѸٵؚˮеļԭw
2O3pHֵˮؼˮкӰ^СҲһxGùùȌO3пˎ^LrgܚO3ˮrˮĝȡɫȌЧӰஔһO3ڟoCЙCֽ
3O3ȥ΢ˮЙCa(chn)ζЧÓɫCl2ClO2ЧѸ١
4 ͶO3ܸ׃Сw늺ɵ|(zh)ʹСʹ늵СwۼͬrO3ܽЙC^У߀ڡ΢á߻Чһ
5O3ЧãСÿ죬a(chn)ȼк|(zh)ͬr߀ʹˮ^õĸйָˡO3һЩBĜhhˮO3ֽٶȿ죬oSֹܾW(wng)һʣˮƽͨO3ˮͶϵ
6O3܌ˮв׽ĴЙCֽСЙCˮгʹˮܽm(x)̎؄e̎ṩ˸õėlĽ(jng)Ͽ]O 3 Ͷ̫صm(x)ˇ̎Ҳa(chn)uк|(zh)
7 ˮ̎^(yng)MҪµu|(zh)uһγO3Ҳyȥ

2.5 Ƃ估(jng)Է
    a(chn)O3ķПo•늷䷨⾀늽ⷨڌHˮS(yng)жßo•늷
    ʹ⣨O2-D(zhun)׃O3ҪкܴOOIѽԭo•늾øӁZʹֽԭӣ
O2 2O
xԭЩϳɳ
3O O3
ЩºϳɞЩtϳɞO3
O + O2 O3
    (yng)ǿɵO3Ҳֽɞԭӻ⡣ͨ^늅^(q)ֻһ܉׃O3a(chn)O3ָͨһO3Ŀ՚Q՚⣬Ǽ

    ÿa(chn)1ǧO3ՓҪ0.836kWhÿ՚a(chn)O3rֻ46%ЧHÿǧO3 1520kWhüa(chn)O3늺Ĵsɽһҡ

    (j)Ŀǰļg(sh)ˮƽO3a(chn)ԭϷ֞՚⡢ҺN

    ҺһmСҎ(gu)ģ<50kg/h׃ؓF(xin)ȡmڳ>50kg/hҎ(gu)ģø՚ȡO3@õijһ13%üҺa(chn)ijȿ_10%ҿ՚ȡO3늺ļsɷN2

    (j)P(gun)ø՚F(xin)ƼُIҺNȡO3ÿǧO3a(chn)ɱքes16.0Ԫ12.0Ԫ17.3ԪҊF(xin)ȡkɱ͡Ͷ5mg/LӋÿˮO3̎ɱ0.06Ԫ

    HУO 3 ಻Ϊʹcw̿“(lin)ÌˮM̎̿ˮ̎ˇЧáa(chn)ɱMзˮSҎ(gu)ģ540f/ró̿ˇӵˮɱ0.100.15Ԫ/֮g(j)҇ԁˮSĹˮrˮ|(zh)˂ˮƽ]@NˇȫԽܵ

2.6 ʹóڵĆ}
    O3܏Ҳʮȫʮ(yng)O3ҲһЩ}O3a(chn)

    ΢ȾˮԴЙCN࣬O3cЙCﷴ(yng)һϵеga(chn)ҪȫMЙzyǷdzyl(wi)MWHOͼȩO 3a(chn)ָ

    ڽ(jng)ԭO3Ͷܴ󵽌ЙCȫoC⣬ʹ^ͶO3 Ҳ|(zh)F(xin)ҲʹЙCȫVO3(sh)ЙCa(chn)IJȫa(chn)KO3Mһֽ(do)O3܌@Щga(chn)ȫҴͬrO3ЧȥˮЙCȻoЧ

    O3̎rcЙCﷴ(yng)ɲȩh(hun)ж|(zh)wвӰ푡ˮк^xO3ᡣcua(chn)ǰwﷴ(yng)a(chn)º廯a(chn)x߀ܱMһ}xĶ(do)³ˮͻ׃ˮпͬЙC̼AOCܕˮмٶȷֳ˾SֹܾW(wng)ʣڳ̎ټȻȰ̎քeȻ裬ɞµa(chn)䶾ԬF(xin)вijЩr(nng)ˎO3Įa(chn)ܸк

    wfmȻ(yng)O3rиa(chn)ɣһrȲԆ}Ҳ(j)ĿǰоoՓڸa(chn)Ͷ߀ڳˮͻ׃ԷO3Cl2ClO2

Y(ji)Փ

1.ClO2O3ǸЧ, pHֵˮаӰ푾^Сa(chn)ȼҺa(chn)Ʒ
2.ClO2 O3 иߵķ(wn)ԣͬrֱȾиO 3 ór˾SֹܾW(wng)еijm(x)ҪȡȰȵo
3. uyȥԭˮֳ|(zh)ӺߵˮShʹClO2O3MA(y)̎
4. ˮ̎вO3ҪȲClO2ɱԸˮ|(zh)vó̿ˇҪȲClO2ͽ(jng)ˮƽԣ@ɷNMˮ|(zh)ķǿԽܵˮSԸ(j)wr(yng)ĵĴʩ
5. ClO2 O3܏жԺ͸gʹעⰲȫoʩ

īI

1.ȣF(xin)cl(f)չЇoˮˮ1996,12(5)
2.S㣮ȥˮеr(nng)ˎȴЙCˮg(sh)1997,59(1)
3.W(xu)ƣˮˮg(sh)1998,64(2)
4.ԄPˮl(f)չϽoˮ2000,5
5.fȣˮ׃ClO 2 ȡҺȵǰh(hun)oƌW(xu)2000,26(4)
6.SAˮطN̎ͬW(xu)磮
7.M.A xJµAl(f)ˮ̎ˇW(xu)AW(xu)磮
8.ȣl(f)(yng)üg(sh)F(xin)Ϻh(hun)ƌW(xu)1999,18(10)
9.ˮˮ|(zh)̎g(sh)(jng)oˮˮ1998,24(12)
10.Ǖ܊ȣO 3 ˮ̎ϵđ(yng)ãˮ̎g(sh)1997,23(5)
11.ˮ̎O(sh)Ӌ°l(f)չʯͻh(hun)1998,3
12.AϺܼҶˮSԇعеđ(yng)ãϽoˮˮ2001,2
13.κȥˮЙCоc(yng)ìF(xin)Їoˮˮ1996,12(5)
14.Ƃ飮ˇˮ̎g(sh)䑪(yng)ãoˮO(sh)Ӌ1993,2
15.ꐳioˮ̎еija(chn)Pƣˮg(sh)1998,64(2)

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