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8/14/2019 Xu Ly Nuoc Cap Cho Cac Nganh Cong Nghiep
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LOGO
ti: X l nc cp cho cc ngnhcng nghip
GVHD: Nguyn Trung DngSVTH: V Duy Khng
Trn Quang Ti
L Vn Dng
Nguyn Quc t
TRNG : I HC BCH KHOA H NI
KHOA CNG NGH HA HC
LP : MY HA K50
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Ni Dung
Cc phng php x l c bn2
Cc cng ngh x l nc3
Quy trnh x l nc b mt4
Gii thiu chung1
Quy trnh x l nc ngm5
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I. Gii Thiu Chung
vLm thay i thnh phn, tnh cht nc tnhin theo yu cu s dng ca tng ngnhtrong cng nghip.
Mc ch x l nc
Cng dng:vLm nguyn liu sn xut (H2SO4 ,HNO3 ..)vLm dung mi ha tanv
Lm cht ti nhit,cht lm lnhvLm sch nguyn liuv
v
v
8/14/2019 Xu Ly Nuoc Cap Cho Cac Nganh Cong Nghiep
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Lm mt: cng thp, [Mg2+,Ca2+]
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Ncngm
-Nc ngm c lng oxy ha tan thp vhu nh khng c tp cht hu c.-Nc ngm tng i sch, tp cht l ccmui tan,kh tan (CH4, CO2)
Nc
mt
-Ngun nc mt nh : sng, ao, h, bin -Thnh phn phc tp gm nhiu nhm tnh
cht khc nhau
Ccngunnccp
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II. Cc phng php x l c bn
Cc cng trnh:Song chn rc,li chn rc, blng, b lc.
S dng c hc gi li cnkhng tan trong
nc.
Phngphp c hc
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Phng php keo t
Kh trng bng Clo, Ozone
Phng
phpha hc
Kh trng bng Clo, Ozone
Dng ha cht dit to
Kim ha nc bng vi
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Kh trngnc bng tiat ngoi, sngsiu m
Hp th bngthan hot tnh
Phng phpSodis
Chng ct
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B cha nc sch
S quy trnh x l nc mt tng qut
Lc tip xc
Nc th Song chn rc Keo t,to bng
Lng s bLc chm
Khuy trn
Lc nhanh
2
3
4
1
(1).Co2500mg/l(3).Co
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B cha nc sch
S quy trnh x l nc ngm tng qut
Lng tip xc
Nc th
Lm thong t nhin hoc cng bc
Keo t
Lc nhanh
3
(1).Fe>9 mg/l
(2).Fe
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III.Quy trnh x l nc b mt(Co
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Li lcv Lm trong s b nc mt cha cc mng thy sinh rt,c bit l
vi nc h.v Li kim loi khng r hay bng ni lng c sn thp hnh tr.Mt
li rt nh khong 0,020,06mm.v Cng lc li t ti 1025 /sm2 ,tc 0,3m/s.Dng li lc
c th gi li c 2530% hm lng cn trong nc v4590% ph du rong to.
v Dng li lc s lm tng chu k lm vic trong b lc, gim lngphn cho vo nc n 2,5 ln.
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Qu trnh lng s dng cht keo t
vB trn dung dch trc phn ng.v
vB phn ng.v
vB lng.
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Chun b dung dch phn cng tc:
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Thit b trn cht keo t
v
Mc ch:trn u nc v ha cht vo nhau cc phn ngd xy ra. Nc ra khi b trn c a sang b phnng.
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B phn ngv Nguyn l: S dng nng lng ca dng nc, kt hp vi cc
gii php v cu to, to ra cc iu kin thun li cho qutrnh tip xc v kt dnh gia cc ht keo v cn bn trongnc.
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B lng
vLng ng cc bng cn sinh ra trong cc phn ng trong ch yu lFe(OH)3
vTng thi gian cc phn ng oxy ha din ra hon ton.
vLoi b t 90-99% lng cht bn cha trong nc.
v
Cc loi b lng: B lng ng. B lng ngang.
B lng lp mng.
B lng li tm.
B lng trong c tng lp cn l lng.
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B lng ngv Nc chy vo ng trung tm gia b (ngn phn ng) i xung
di vo b lng.Nc chuyn ng theo chiu t di lntrn,cn ri t trn xung y b. Nc lng trong c thuvo mng vng b tr xung quanh thnh b v a sang b lc.
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B lng ngang
v * Cu to b lng ngang gm 4 b phn chnh :- B phn phn phi nc vo b - H thng thu nc lng- H thng thu x cn - Vng lng cn
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B lng lp mng
v Do cu to thm cc bn vch ngn nghing bng thp khng rhoc bng nha nn b lng lp mng c hiu sut lng caohn b lng ngang.
v
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B lng li tmv Nc cn x l theo ng trung tm vo ngn phn phi, phn phi
u vo vng lng. Nc t vng lng chuyn ng t trong rangoi v t di ln trn. Cn c lng xung y. Nc trongth c thu vo mng vng vo mng tp trung theo ng
ng sang b lc.
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B lng trong c tng cn l lng
v Nc t b trn theo ng ng dn nc vo, qua h thng phnphi vi tc thch hp vo ngn lng s hnh thnh lp cn llng.Cc ht cn t nhin c trong nc s va chm v kt dnhvi cc ht cn l lng v c gia li.
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B lc nhanhv Nc chuyn ng theo chiu t trn xung, qua lp vt liu lc,
si vo h thng thu nc v c a v b cha ncschv Ht vt liu lc ln nn khe h gia cc ht vt liu lc ln do
cc ht cn c gi li trong lng vt liu lc theo c ch lcnhanh.
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B lc tip xc(Co
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B lc chm (Co
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My lc tng p
v Dng khi hm lng cn ca nc ngun n 50mg/l, mu n80o vi cng sut trm x l n 3000m3.Do b lm vic dip lc, nn nc cn x l c a trc tip t trm bm cpI vo b, ri a trc tip vo mng li khng cn trm bmcp II.
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IV.Quy trnh x l nc ngm
v
Mc ch:Loi b trit cc cn cha lng v khng lngc b lng Kh Fe,Mn nh lp oxit mangan trn b mt ct lc.
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v Gin ma - lng tip xc - lc: s dng gin ma c kh nng thuc lng xi ha tan bng 5% lng xi bo ha v c khnng kh c 75-80% lng CO2 trong nc.
S 2
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S 3
v
Thng qut gi - lng tip xc - lc :B lng tip xc: Chcnng chnh ca b lngtip xc l choFe2+tip xc vi xi cakhng kh to iu kincho qu trnh oxi ha vthy phn st din rahon ton, ng thi gili 1 phn bng cn nngtrc khi a sang blc.
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PHNG PHP:Lm mm nc
v
Lm mm nc hay kh cng trong nc lkh cc loi mui Ca v Mg c trong nc.Thng nc cp cho mt s lnh vc cngnghip cn lm mm l: cng nghip dt, si
nhn to, ho cht, cht do, giy...v nccp cho cc loi ni hi.vCc phng php lm mm nc:vPhng php nhit
vPhng php ho hc :vi,xa,pht pht,vPhng php trao i ion
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Phng php lm mm nc bngnatricationit
v
Dng lm mm nc ngm v nc mt chm lng cht l lng khng vt qu58mg/ v mu khng qu 30o
vKhi dng phng php ny, kim ca nc
khng thay i.v cng ca nc c th gim xung n
0,030,05 mg/ khi dng mt bc.Hon nguyn b lc cationt bng mui n.
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Phng php lm mm nc bnghyrnatri - Cationit
vPhng php hyrnatri - cationt dng khcc cation Ca v Mg c trong nc, ng thilm gim kim ca nc. Dng phng
php ny x l nc ngm v nc mt chm lng cht l lng khng qu 58 mg/ .
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Lm mm nc bng thit b SOFTENER
SOFTENER - Thit b dng ho cht lm mm nc cng
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Qu trnh kh ion: -Trao i ion Ca v Mg trong nc
vi Na trong cht x l cng(LibbGuard)
- Sau qua lp mui lc ta thu
c nc c cng thp
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Nguyn l hot ng
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IV:H thng tun hon nc
I. Qu trnh tun hon nc trong nh my tuyn than:
Cng tyTuyn thanCa ng.
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IV:H thng tun hon nc
1. S khi h thng x l bn nc ca nh my tuyn than
Nc lc
Bn ncthan sau khituyn
ThngKhuy
My lctng p
Nc lc
BnW20%
My phn lync vkhng kh
Bn tng i khSp thancm bn
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IV:H thng tun hon ncII. Qu trnh tun hon nc trong nh my giy:
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Tun hon nc thi
v
S sn xut
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Tun hon nc thi
v S hthng xl ncthi cngon xeo
bngphngphptuyn ni
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Tun hon nc thi
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H thng cng ngh phng php tuynni p lc
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Ending Style
Thank You !Thank You !