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  • Y BAN NHN DN THNH PH H CH MINH

    CNG TY TRCH NHIM HU HN MT THNH VIN THOT NC TH TP.HCM

    QUY TRNH VN HNH, BO TR, BO DNG

    NH MY X L NC THI BNH HNG HA

    CH S HU N V LP

    TRUNG TM IU HNH CHNG TRNH CHNG NGP NC

    THNH PH

    CNG TY THHH MT THNH VIN THOT NC TH

    THNH PH

  • I. GII THIU V NH MY X L NC THI BNH HNG HA

    Nh my x l nc thi Bnh Hng Ha nm trn a bn phng Bnh Hng Ha A, Qun Bnh Tn, c xy dng trn c s hp tc gia hai chnh ph Vit Nam v Vng quc B (thuc d n nng cp th v lm sch knh Tn Ha L Gm giai on m rng;

    Ranh gii Nh my XLNT Bnh Hng Ha:

    + Pha Bc gip vi ngha trang Bnh Hng Ha.

    + Pha Ty gip vi khu ti nh c v khu dn c.

    + Pha ng gip vi knh en.

    + Pha Nam gip vi khu dn c.

    V tr trn bn thnh ph

  • Hnh Nh my XLNT Bnh Hng Ha:

    Cng trnh c khi cng t 08/2004 n 30/03/2006 bt u vn hnh th ti v chnh thc i vo vn hnh t thng 06/2006.

    Nh my thu gom v x l 60 80% nc thi ca lu vc thng ngun Knh Nc en (mt phn Qun Bnh Tn v mt phn Qun Tn Ph). Mc d c thit k x l nc thi sinh hot tuy nhin trong khu vc thu gom nc thi v nh my c nhiu c s sn xut tiu th cng nghip c kh, xi m, nhum, thuc da v cc dch v ra xe vi thnh phn nc thi rt phc tp, c bit c cha nhiu cht ty ra b mt.

    Nh my x l nc thi Bnh Hng Ha p dng cng ngh h sc kh v h n nh nc thi vi cng sut thit k l 30.000m3/ngy vi cc thng s thit k nh sau:

    STT Ch tiu n v u vo u ra

    1 Cht rn l lng (SS) mg/l 150 100

    2 Nhu cu oxy ha sinh hc (BOD5)

    mg/l 160 50

    3 Nhu cu oxy ha ha hc mg/l 300 100

  • 1. M T CC HNG MC CHC NNG:

    S mt bng nh my x l nc thi Bnh Hng Ha

    Sn phi bn

  • 1.1. Cm cng trnh ly nc:

    Cm cng trnh ly nc vo nh my bao gm: cng dn dng vo nh my, song chn rc th (ng Knh nc en bn ngoi nh my), trm bm vi 3 bm trc vt c cng sut 177l/s (2 vn hnh, 1 d phng), song chn rc tinh, hai knh lng ct (c h thng ht ct t ng v vt ti ct) v mng chia nc vi thit b o lu lng u vo.

    Chc nng ca cm cng trnh ly nc l dn nc thi t tuyn cng ngoi ng Knh nc en vo nh my, lc rc, bm nc thi ln cao c th t chy vo h thng cc cng trnh x l, loi b ct v cc ht c kch thc ln, chia nc vo 2 h sc kh (quyt nh vic vn hnh h thng song song hoc ni tip) v o lu lng nc thi u vo ca nh my.

    1.2. H sc kh (A1, A2):

    C 2 h sc kh (mi h cho 1 n nguyn), mi h c 8 thit b sc kh b mt. Cao mc nc nh l 3,23m v chiu su mc nc l 4m; din tch mi h sc kh khong 1,485ha; th tch cha nc mi h khong 5.950m3.

    Chc nng ca h sc kh l cung cp Oxy cho cc vi sinh vt Oxy ha cc cht hu c trong nc thi.

    1.3. H lng (S1, S2):

    C 2 h lng (mi h cho 1 n nguyn), cao mc nc nh l 2,98m v chiu su ca lp nc l 4,0m din tch mi h l 0,94ha.

    Chc nng ca h lng l lng cc cht rn l lng (bn hot tnh v cc cht rn l lng khc trong nc thi);

    1.4. H hon thin (M1.1, M1.2, M1.3 v M2.1, M2.2, M2.3)

    C 6 h hon thin (3 h ni tip cho mt n nguyn x l). Cao mc nc nh ln lt l 2,73 - 2,48 - 2,23 tng ng cho mi n nguyn v chiu su ca lp nc trong h hon thin l 1,5m vi din tch khong 2,4 ha cho h th nht, 2,5ha cho h th hai v 3,3ha cho h cui cng.

    1.5. Sn phi bn

    C 1 sn phi bn nm xem gia khu vc h sc kh v h lng c chc nng phi kh bn bm ln t hai h lng S1 v S2 trc khi vn chuyn n bi .

  • 2. QUY TRNH X L NC THI:

  • III. GII THIU V THIET B O

    1. Giao dien :

    2.1. Quy trnh x l nc thi:

    Nc thi t h thng cng ngoi ng Knh nc en c dn vo nh my qua song chc rc th s c bm vo h thng, nc thi chy qua song chn rc tinh trc khi i vo hai knh lng ct. Ti knh lng ct s c h thng cu cng tc thng xuyn ht ct ln v 2 thit b vt ti ct c chc nng loi b ct ra khi nc thi. Rc trn cc song chn rc v ct c loi b s c nhn vin vn hnh v sinh thng xuyn.

    Nc sau khi i qua knh lng ct c th c vn hnh song song hoc ni tip, vic phn chia lu lng, quyt nh phng thc vn hnh ni tip hoc song song ph thuc vo cht lng nc v hiu qu quy trnh x l. i vi vn hnh song song, ca chia nc s phn phi vo hai h sc. i vi vn hnh ni tip th tt c lu lng u vo c phn phi vo h sc kh th nht (A1) sau chy qua h sc kh th hai (A2). S phn chia lu lng s c phn chia sau h sc kh th hai.

    S lng thit b sc kh cho cc h ti bt k thi gian no s ph thuc vo nng xy trong h sc kh. Gi tr DO s c o 2 ln trong ngy ti cc thi im khc nhau trong dy chuyn x l. Gi tr DO trong cc h sc kh thng thng nn duy tr t 2 n 4mg/l, y l thng s c bn nn xem xt trong quy trnh x l, ngoi ra cc thng s khc cng nh hng n quy trnh ny nh, nng kim loi nng do nc thi cng nghip, nhit , pH ca dng vo u nh hng n nhu cu oxy v kt qu nng oxy trong nc. Nhn vin vn hnh cn lu n cc thay i ny khi quyt nh thay i s lng thit b sc kh vn hnh.

  • Sn

    phi

    bn

    Mng Cipolletty

    Nc tch ct, bn

    Vn

    chuyn

    ni

    khc

    Ch thch :

    ng nc

    ng bn, ct

    ng rc thi

    ng kh

    2.1.1. S cng ngh vn hnh song song:

    Knh en

    H thu-Trm bm

    Knh lng ct

    H thng chia dng

    H sc kh A1 H sc kh A2

    H lng S1 H lng S2

    H hon thin M1.2

    H hon thin M2.1 H hon thin M1.1

    H hon thin M2.2

    H hon thin M1.3 H hon thin M2.3

    Ca thu nc, SCR th

    SCR

    Knh en

    Knh lng ct

    Thu gom rc thi

    My

    sc

    kh

    My

    sc

    kh

    Knh tch ct

  • Sn

    phi

    bn

    Mng Cipolletty

    Nc tch ct, bn

    Vn

    chuyn

    ni

    khc

    Ch thch :

    ng nc

    ng bn, ct

    ng rc thi

    ng kh

    2.1.2 S cng ngh vn hnh ni tip:

    Knh en

    H thu-Trm bm

    Knh lng ct

    H thng chia dng

    H sc kh A1

    H sc kh A2

    H lng S1 H lng S2

    H hon thin M1.2

    H hon thin M2.1 H hon thin M1.1

    H hon thin M2.2

    H hon thin M1.3 H hon thin M2.3

    Ca thu nc, SCR th

    SCR

    Knh en

    Knh lng ct

    Thu gom rc thi

    My

    sc

    kh

    My

    sc

    kh

    Knh tch ct

  • 2.2 Qun l bn:

    Bn hot tnh dng l lng trong h sc kh s c lng khi dng chy i vo h lng (S1 v S2). Lng bn c tnh khong 650tn/nm, tng ng 30m3 bn lng/ngy. Khong 6 thng vn hnh lin tc chiu dy lp bn trong h lng tch ly di y khong 30cm.

    Hng thng nhn vin vn hnh phi tin hnh o kim tra mc bi lng bn ti hai h lng.

    Hng nm vo ma kh nu lng bn tch ly trung bnh ln hn 50cm th phi tin hnh ht bn t 2 h lng ln sn phi bn. Bn s c lm kh sn phi bn trong thi gian khong 10 tun sau s c vn chuyn n bi theo quy nh.

    3. VN HNH THIT B:

    3.1. H thng iu khin trung tm:

    a. Khi ng Mn Hnh: Sau khi cp ngun cho h thng, mn hnh s nhn dng usb logging d liu. Qu trnh nhn dng usb mt khong 2 3 pht ty thuc vo dung lng ca usb,sau mn hnh s boot vo mn hnh Trang Ch. Nu cha cm usb th nhn nt Ignore mn hnh s tip tc boot vo mn hnh Trang Ch. Ch :

    Khi nhn nt Ignore mn hnh s khng loggin d liu v cc trang th s khng hin th.

    Mn hnh h tr usb ti a 2GB.

    b. Trang Mn hnh ch: Mn hnh ny cho php gim st trc quan trng thi hot ng ca 24 thit b.

  • Khi thit b dng s hin th mu , khi thit b chy s hin th mu xanh v khi

    thit b b li do qu nhit hay qu ti th hin th mu vng nhp nhy. xem chi tit tng thit b, ngi dng c th nhn vo biu tng ca thit b trn mn hnh.

    ng thi mn hnh cng hin th mc nc u vo hin ti v lu lng tng ca

    tng knh 1 v 2.

  • Dng ch hin th cui mn hnh cho bit thng tin s kin hin ti chy, dng v li ca cc thit b. Dng ch ny s thay i lun phin lt qua tng s kin vi chu k 1s v c hin th tt c cc trang mn hnh. xem chi tit tt c s kin ny ngi dng c th vo trang Bo ng bng cch nhn nt Bo ng nm trong dy nt bo ng trn v bn tri mn hnh.

    Cc nt pha trn v bn tri mn hnh iu hng n tng trang mn hnh vi

    chc nng khc nhau nh sau:

  • Trng thi thit b: n trang mn hnh hin th trng thi ca thit b theo

    dng danh sch. Bm trc vt: n trang mn hnh gim st v ci t ch iu khin t

    ng cho 3 bm trc vt. Gim st in nng: n trang mn hnh gim st dng, p, cng sut tng

    pha v in nng tiu th tng. Mc nc u vo: n trang mn hnh biu mc nc u vo Lu lng u vo: n trang mn hnh hin th lu lng u vo ca

    tng knh theo ngy, thng v tng. Bo ng: n trang mn hnh hin th cc s kin ang din ra hin ti S kin: n trang mn hnh hin th danh sch cc s kin xy ra

    hin ti v qu kh. Ci t: n trang mn hnh ci t cc thng s ca h thng

    c. Mn Hnh Trng Thi Thit B: Trang ny hin th trng thi hot ng ca 24 thit b theo dng danh sch

  • Khi thit b dng s hin th mu ,

    Khi thit b chy s hin th mu xanh Khi thit b b li do qu nhit hay qu ti th hin th mu vng nhp nhy.

    xem chi tit tng thit b, ngi dng c th nhn vo cc nt n tng ng

    thit b trn mn hnh. Bn cnh cc n l s gi v s pht chy tng ng ca thit b tnh cho ln

    chy hin ti.

  • Bn di mn hnh l cc nt chuyn hng n cc trang mn hnh khc. Nhn

    nt Trang Ch tr v mn hnh chnh.

    d. Mn Hnh Bm Trc Vt: Mn hnh ny gim st trng thi v ci t ch chy t ng ca 3 bm trc vt.

  • n hin th trng thi ca bm: mu khi bm

    dng, mu xanh bm ang chy v mu vng khi bm b li khi qu nhit hay qu ti.

    n hin th ch

    hot ng ca bm. Bm chy theo 2 ch :

    ch tay: bm chy v tt theo cc nt nhn ti t iu khin bn ngoi.

    ch t ng: bm chy theo hai mc nc c ci t: mc cao v mc

    thp. Cng vi th t u tin ca 3 bm c ci t nh sau:

    Khi mc nc thp hn so vi mc nc thp c ci t mt khong bng

    tr th bm u tin 1 s chy.

    Khi mc nc ln hn mc nc thp c ci t v nh hn mc nc cao

    c ci t mt khong bng tr th bm u tin 1 v bm u tin 2 s chy.

    Khi mc nc ln hn mc nc cao c ci t mt khong bng tr th 3

    bm cng chy.

  • Ti cc khong tr trn v di cc mc t th trng thi ca cc bm s

    c duy tr.

    V d: mc nc hin ti thp hn so vi mc nc ci t v bm 1 ci t u tin

    1, bm 2 c ci t u tin 2. Ti mc ny bm 1 s c cho chy v bm 2 tt. Bm

    2 ch c cho chy khi bm 2 dng ln cao hn so vi mc nc thp ci t mt