Hấp phụ than hoạt tính trong xử lý nước cấp

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Hp ph than hot tnh trong x l nc cp. Mc lc:. I. Gii thiu v than hot tnh. II. ng dng than hot tnh trong nc cp. III. Kt lun. I. Than hot tnh. 1.Than hot tnh l mt cht gm ch yu l nguyn t cacbon. Nguyn liu: cht hu c: than ci, v u, v da,. - PowerPoint PPT Presentation

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  • Hp ph than hot tnh trong x l nc cp.

  • Mc lc:I. Gii thiu v than hot tnh.II. ng dng than hot tnh trong nc cp.III. Kt lun.

  • I. Than hot tnh1.Than hot tnh l mt cht gm ch yu l nguyn t cacbon.Nguyn liu: cht hu c: than ci, v u, v da,

  • 2. c im.Cu to: thnh phn ca than hot tnh bao gm cc nguyn t: 88%C, 6-7%O, 0.5%H, 0.5%N, 1.0%S.Hnh dng: thng dng ht v dng bt.

  • Din tch b mt ca than hot tnh: c 1 gram s c b mt khong 500-2500 m2.

    Cu trc tinh th. Cu trc xp.Cu trc ha hc ca cacbon b mt. chua b mt ca cacbon. Tnh k nc.

  • II. ng dng than hot tnh trong nc cp.S hp thu ca than hot tnh i vi cc kim loai nng nh As,Hg.Cd,Pb..Cc kim loi nng trong nc gy nh hng ln n sc khe ca con ngi khi s dng nc.

  • Cc yu t nh hng n s hp thu Hg(II) ca than hoat tnh.a. Thy ngn.

  • S nh hng ca pH n s hp thu ca than hot tnh i vi Hg(II)

  • nh hng ca pH ti s hp thu As ca than hot tnhb. Arsen

  • nh hng ca pH ti s hp thu Pb ca than hot tnh.c. Ch

  • Loi b cadmium ra khi nc bng phng php hp ph- Cadmium l mt kim loi c hi c tm thy cc nh my nu v tinh ch qung km hoc sn xut pin.

    - S lng ht bm cd(II) rt nh ti gi tr PH8.

    - Bng cch tng liu lng carbon,vic tng liu lng cadmium c th tng ln 3 ln .

  • nng thp th cadmium c hp ph ti a

    Hp ph tng mnh trong khong PH 3-5 v t gi tr khng i PH cao hn.

  • Than hot tnh hp ph cc hp cht phenolPhenol v dn xut ca n nh phenolmethyl.ethylphenol v dimethylphenol v to thnh mt nhm cc cht gy nhim.chng lun hin din trong nc thi.

    Kh nng hp th ca than hot tnh ph thuc vo din tch b mt v l rng kh ca cacbon

  • S hin din ca phenol trong nc ung s sinh ra chlorophenol c mi hi trong qu trnh kh trng nc S hin din ca nhm b mt c tnh acid s c ch kh nng hp ph ca phenol

  • THAN HOT TNH HP PH HP CHT HU C CA HALOGENNm 1947, ln u tin pht hin ra hydrocarbon halogen v trihalogenmetan-THM trong nc. T THM c quan st thy trong tt c cc ngun nc s dng Clo lm cht kh trngCc hydrocarbon halogen v cc THM c hnh thnh trong qu trnh kh trng nc bng Cl, trong Cl phn ng vi mt s cht hu c t nhin nh humic, acid fulvic c sinh ra t qu trnh phn hyCc THM gy nhim nht: CHCl3, CHCl2Br, CHClBr2, CHBr3

  • THM cng phn cc th cng t b THT hp ph. ln hp ph CHBr3 > CHClBr2 > CHCl2Br >CHCl31ct GAC su 3 feet c th loi hn 90%cloroform ca dng thi trong 9 tun lin tcTHT c nhiu l xp mn hn th hp ph tt hn THT cn c ti to thng xuyn do kh nng hp ph gim dn ca n

  • THAN HOT TNH HP PH NITRO V CC HP CHT AMINCc hp cht nitro c hi thng c trong nc thi t qu trnh sn xut thuc n v cc ngnh cng nghip v khng hp ph ng nhit ca nitrobenzene trn cc loi than hot tnh khc nhau vi din tch b mt khc nhau

  • Mt hp cht ca amin l nitrosoamines c th gy ung th c thi ra t mt s ngnh cng nghip ha cht. 1L nc c lc qua 23g THT 40-50L/h/kg loi c 99% dimethyl, diethyl v nitrosoamine diphenylTHT hp th amin l mt phn ng trung ha gia nhm acid trn b mt C v nhm NH2 ca amin

  • THAN HOT TNH HP PH THUC BO V THC VT Ha cht BVTV gm:thuc tr su, thuc dit to, thuc dit nm v cc ha cht nng nghip khc.c tnh c hn 1500 loi thuc tr su sn xut v hn 8000 loi thuc do ngi dn t ch binTTS cng c kh nng ha tan trong nc cao (tc l cht b ht bm yu) th cng kh b hp phPAC c th x l nc nhiu hn 6 ln so vi lng GAC tng ng

  • loi b cc loi TTS t nc bng cch s dng cc phng php khc nhau bao gm kt lun rng hp ph THT c tim nng ln nht.

  • Mu_Mu thng do cc cht bn trong nc to nn: axit hu c, cht to mu, axit humic..._ Hp cht st ha tan nc c mu nu _ Cc loi thy sinh nc mu xanh l cy_ Nc thi sinh hot, cng nghip nc mu xm en_ Cc cht humic nc mu nu vng

  • Mi_ Cc cht kh v cc cht ha tan trong nc nc c mi v v

    _ Nc c mi: mi t, mi tanh, mi thi hoc mi c trng ca ha cht ha tan: Clo, amoniac, Sulfur Hydro

    _ Nc c v: mn, ngt, cht,...ty thnh phn cht lng v hm lng cht ha tan.

  • Kh mi bng phng php dng than hat tnhCc loi than hot tnh thng dng l: than awngtraxit, than cc, than bch dng hay than bn dng bt cho vo nc.Than hot tnh dng trong cc b lc c kch thc d= 13mm, chiu dy lp than l = 1,5 4m, tc lc t 50m/h

  • _ Khi nc c mi khng thng xuyn m ch xy ra vo tng thi k nht nh, th phng php dng b lc than s khng kinh t. Khi c th kh mi bng bt than vi liu lng khng vt qu 12mg/l. C th dng 5 7mg cho vo b trn, cn li khng qu 5mg/l cho vo trc b lc trnh rt ngn chu k lc do nh hng ca bt than.

    Khi lng than hot tnh ly bng 0,06 0,12m3 cho 1m3 nc tnh trong 1h

  • 4 ) ng dng trong quy trnh x l nc cpa ) V tr ca b lc than hot tnh:Thng ng sau b lc ct (Sand Filter)

    Thng ng trc cc h thng mng lc(MicroFiltration, UltraFiltration, NanoFiltration, RO_Reserve Osmosis, Ion Exchange, HSRO_High speed Reserve Osmosis, HSUF_High speed UltraFiltration...)

  • 4 ) ng dng trong quy trnh x l nc cp

  • 4 ) ng dng trong quy trnh x l nc cp

  • 4 ) ng dng trong quy trnh x l nc cp

  • 4 ) ng dng trong quy trnh x l nc cp

    *+Cc yu t nh hng:Tng th tch l xp trn mt n v th tch hay khi lng than hot tnhCnssg khuy trnc tnh ca cht hp phpH, nhit , p sut Nng dung cht nht ca dung dch B dy ca lp than hot tnh

  • 4 ) ng dng trong quy trnh x l nc cp

    Kch thc cc b lc than hot tnh - 4 thng s.Kch thc ht Tc lc chn t 5 11 mss/h Thi gian tip xc ca nc v vt liu lc Chiu dy lp lc Ra lc theo tn tht p lcThi gian ra t 9- 15 pht, cng ra ph thuc vo c ht, nhit , chiu dy lp lc 8 12L/sm2.Kim tra hin tng sinh hc

  • 4 ) ng dng trong quy trnh x l nc cp

    Hiu qu hp ph: Thng thng t khong 80 - 95%.Chu k gii hp: 6-12 thng Cc phng php ti sinh than hot tnh hiu qu:Ti sinh bng hi Ti sinh bng nhit Ti sinh ha hcTi sinh sinh hc

  • Ti liu tham khoS tay x l nc tp 1 Nxb Xy dng H Ni 1999Cng ngh mi trng tp 1 x l nc PGS.TS Hong Vn Hu - Trng i hc kin trc H Ni Nxb Xy Dng H Ni 2004Gio trnh x l nc cp Ths Nguyn Cng Nguyn Lt 2010Gio trnh k thut x l nc v nc thi Ths L Quang Huy Lt 2010Gio trnh k thut x l cht thi cng nghip PGS.TS Nguyn Vn Phc (ch bin)Tnh ton cc cng trnh x l v phn phi nc cp Trnh Xun Lai - Nxb Xy dng H Ni 2008H thng x l nc cp ca n

  • Cm n s theo di ca THY v cc BN

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