Binh hung đã được công ty duyệt

8/2/2019 Binh hung c cng ty duyt

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LI CM N

Thc tp l mt qu trnh gip chng em hiu r v nm vng hn nhng kin thc

hc trong thi gian 3 nm hc ti trng Cao ng Ti Nguyn v Mi Trng.Con lun bit n b m lun to iu kin gip con hon thnh tt hn vic hc,

gip con rt nhiu trong vic hc.

Em xin chn thnh cm n Ban gim hiu trng cao ng ti nguyn v mi trng

Tp.HCM v cc thy c trong khoa mi trng truyn t kin thc chuyn mn cng

nh nhng kin thc v cuc sng thc t.

Em xin chn thnh cm n cc thnh vin trong cng ty x l nc thi Bnh Hng

trc thuc cng ty Cp Thot Nc Th thnh ph H Ch Minh, v hn na l Ch Hu

- ngi trc tip hng dn chng em, ch Trang gip chng em quan st v tip cn hn

vi cng vic thc tp.

C Hong Th T N l gio vin hng dn ,ng vin gip Em nh hng v

b sung kin thc cn thiu trong qu trnh thc hin ti ny.

Em c gng thc hin qu trnh hon thnh bo co thc tp c tt nht,

nhng cng khng th no trnh nhng sai st nn mong c s gp v chnh sa caThy C v Anh Ch em hon thnh tt vic thc tp.

Trn trng cm n!

Tp.HCM, Ngy.Thng......Nm..

Sinh vin thc hin

SVTT: L TH THY Trang 1


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MC LC

CHNG I: TNG QUAN V NH MY X L NC THI BNH HNG

1.1 GII THIU V NH MY X L NC THI BNH HNG1.2 LCH S THNH LP V PHT TRIN CA NH MY

1.3 A IM XY DNG, NGUN TIP NHN V CC QUY CHUN

1.4 S B TR MT BNG NH MY

CHNG II: QUY TRNH CNG NGH

2.1 S CNG NGH

2.2 THUYT MINH S CNG NGH2.3 M T CHI TIT TNG HNG MC X L

CHNG III: AN TON

CHNG IV: KT LUN V KIN NGH

NHN XT CA CNG TY

NHN XT CA CN B HNG DN

NHN XT CA GIO VIN HNG DNNHN XT CA GIO VIN PHN BIN



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CHNG I: TNG QUAN V NH MY X L NC THI

BNH HNG

1.1. Gii thiu v nh my x l nc thi Bnh Hng

- Nh my x l nc thi Bnh Hng l n v qun l vn hnh thuc cng ty thot

nc th.Nh my c xy dng ti p 5, x Bnh Hng, huyn Bnh Chnh, TPHCM, xung quanh c bao bc bi kinh Tc Bn R.

- Nh my x l nc thi Bnh Hng thuc gi thu E, c gi tr u t ln hn

1.400 t ng. Thuc giai on I ca d n ci thin mi trng nc lu vc knh

Tu H-Bn Ngh, s dng ngun vn vin tr pht trin (ODA) ca chnh ph Nht

Bn. y l d n do ban qun l ng-Ty v mi trng nc TPHCM l ch u

t, vi tng mc u t ln hn 4.163 t ng, trong vn (ODA) l hn 3.213 t

ng, vn i ng l 950 t ng.

- Nh my c khi cng t thng 11/2004 v hon thnh vo thng 12/2008 do nh

thu l Lin Danh NES(Nishimatsu construction Co, Ltd, Ebara corporation v

shimizu construction ca Nht Bn)thi cng.



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- Nc thi ban u c thu gom t h thng cng bao ca cc ca x dc theo sng

Si Gn-Bn Ngh-Tu H. Sau , trm bm ng Diu chuyn tip nc thi v

nh my bng ng ng c t di hm(di 3 km)

- Cht lng nc sau x l thi ra knh rch t gii hn Loi B(TCVN-5945-2005

BTNMT)

*Cng Sut ca nh my :gm 3 giai on.

+ Giai on I: 141.000 m3/ngy (giai on hin nay) x l ton b nc thi ca dn

c thuc phm vi gn 1000 hecta, c th l cc Qun 1, 3, 5, v 10.

+ Giai on II: 469.000 m3/ngy.Nh my s x l ton b nc thi th ca lu

vc rng hn gn 3000 ha thuc 11 qun, Huyn, trong ti cc qun trung tm nh1, 3, 5, 6, 7, 8, 10, 11s khng cn x trc tip xung knh rch nh hin nay m

c thu gom bng h thng cng bao,a v nh my x l thnh nc sch trc

khi ra knh.

+ Giai on III: 512.000 m3/ngy. Ci tin cht lng nc thi u ra t tiu chun

x thi Loi A TCVN 5945-2005.

1.2. Lch s thnh lp v pht trin nh my x l nc Bnh Hng .

Nh my x l nc thi Bnh Hng l mt trong nm gi thu trong d n ci thin

mi trng nc thnh ph. c bit y mi l giai on mt xy dng nh my

giai on hai nh thu s lm cc tuyn cc cng bao pha qun 4, 8 chy dc knh

i-knh t. Theo k hoch n nm 2020 c tt c chn nh my x l mi trng

nc c xy dng. Nh my x l nc thi Bnh Chnh l nh my u tin

trong chn nh my, hin c 4 nh my x l nc thi khc cng ang trong giaion mi thu



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D kin nm 2020-2025 Tp.HCM s xin chnh ph xy dng thm tm nh my x l

nc thi tng t lc ny ton thnh ph c 17 nh my x l nc thi v i i l

mi trng nc b nhim s c ci thin tt hn.

Nh my ny khi cng xy dng t thng 11-2004 do ban qun l i l ng ty v

mi trng nc TP lm ch u t v do nh thu l lin doanh N.E.S (Nishimatsu

Construction Co.,Ltd,Ebara corporation v Shimizu Corporation ca nht bn)thi

cng. y l nh my x l c quy m ln nht nc hin nay, nc thi sau x l s

t loi B trc khi thi ra mi trng.

Trong tng vn u t xy dng 100triu USD. Nh my cng l mt trong nhng

hng mc chnh thuc d n ci thin mi trng nc Tp.HCM lu vc knh TuH-Bn ngh-knh i-knh t c s ti tr ca c quan hp tc quc t Nht

Bn(JICA) do PMU LT & MTN lm ch u t vi tng mc u t 4.163 t

ng.

Trong , vn vay ODA ca nht bn l 23.994 triu yn (3.213 t ng),cn li l

vn i ng ca Nh nc

1.3.a im xy dng, ngun tip nhn, v cc quy chun:

a im: X Bnh Hng-Bnh Chnh- Tp.HCM

Khi nhn nc thi t trm bm ng Diu(qun 8) nc s i qua b lng,b sc

kh, b lng th cp sau qua b kh trng trc khi thi ra song rch

Mc tiu chnh ca d n l ci thin mi trng nc v cht lng nc song ngi

lu vc pha Bc knh Tu H-B Ngh thuc a bn qun 1,3,5,10.

S THU GOM NC THI:



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*

Hnh 1.1 : S tuyn cng thu gom nc thi

- Hng ngy nh my tin hnh 2 t kim tra,o nhanh cht lng nc ti b sc

kh pht hin v khc phc s c kp thi.

- Cc thit b ti nh my hu ht l vn hnh theo c ch t ng.Do nhn vin

vn hnh lun quan st kp thi khc phc s c xy ra.

- Mt tun,nhn vin phng qun l mi trng thuc cng ty thot nc th s c

2 ln xung nh my ly mu mang v phn tch cc ch tiu cht lng nc.Mu

c ly ti cc v tr nc u vo ti b phn phi, u ra ti b lng s cp, u ra

b sc kh, u ra b lng cui, u ra b kh trng,u vo v u ra b c c bn

trng lc.

- Kt qu phn tch ca nh my s so vi QCVN 24-2009 BTNMT. Tuy x l nc

thi sinh hot nhng Nh My Nc Thi Bnh Hng c xem nh l mt n v

sn xut, nn nc thi u ra s so vi quy chun v nc thi cng nghip ch



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khng so vi quy chun QCVN 14-2009/BTNMT-Quy chun k thut quc gia v

nc thi sinh hot.

Tnh cht nc thi u vo v u ra nh sau:

Thng s u vo (mg/l) u ra (mg/l)

BOD5 165 50

SS 165 100

Bng 1.2:Ttnh cht ca nc thi

1.4. S b tr mt bng nh my(h thng x l)

Vi din tch xy dng l 14 ha s b tr nh my nh sau:

Hnh 1.2: s b tr nh my


Nh tch nc

Nh kh trng

Trm bm nng

Nh iu hnh chnh

Nh thi kh

Nh kho

Nh phn

B lng

B sc kh


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CHNG II: QUY TRNH CNG NGH X L NC THI

2.1 S CNG NGH

Bn ti

Bn d


B lng s cp

B sc kh

Rc

Nc tch bn

B bn dB lng th cp

B kh trng

Knh tc BnR

My thikh

Chmgiaven

Bb b hnhp

Grrtthit b tchnc lytm

Phphncompost

Ncthi

Scr

Trm bmnng

B phn phinc

X l ring

B nc tiquay vng

B c ctrng lc

Thit b cc bn ly

tm


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CH THCH:

ng nc

ng bn2.2 THUYT MINH S CNG NGH:

Nc thi thu gom t cc qun v trm bm ng Diu. c dn n trm bm

nng ca nh my qua song chn rc th rc c mang x l ring nc a h thng

phn phi u nc n b lng s cp. Ti b lng s cp cn bn c th lng v mt

phn ca BOD khng tan c loi b trong b, bn lng trong b ny gi l bn ti

v c a n b c c trng lc. Nc t b lng s cp a qua b sc kh x

l sinh hc. Ti b sc kh cc cht nhim s c loi b bi bn hot tnh trong

iu kin hiu kh. Nc thi c trn vi bn tun hon t b lng th cp. Nc

tip tc qua b lng th cp(b lng cui) thu sinh khi, sinh kh, vi sinh vt v bn

hot tnh. Mt phn bn hot tnh t b lng th cp c tun hon tr li b sc kh

mc ch gi nng bn hot tnh(MLSS). Phn bn cn li trong b lng th cp

gi l bn hot tnh d(bn d) a ti thit b c c bn ly tm. Sau khi ra khi b

lng th cp c a qua b kh trng, nc c kh trng bng ha cht giaven.

Thi gian lu nuoc1 trong b ti thiu khong 30 pht. Nc sau khi nh gi t tiu

chun nc tha theo QCVN 24:2009/BTNMT ct B. Cui cng nc thi ra ngoi

knh Tc Bn R theo ca x.

Phn x l bn: Bn ti t b lng s cp ti b c c trng lc, ti b bn c

phn tch bng trng lc to ra bn v nc, bn c c tip tc c a ti b bn

hn hp, cn nc a v trm bm nng. Bn hot tnh d t b lng th cp an b bn d. Bn t b bn d a qua thit b c c bn ly tm bn a tip n

b bn hn hp. Ti b bn hn hp bn c c c trn ln vi bn ti c c v

c a qua thit b tch nc bn ly tm. Ti thit b tch nc bn ly tm hn hp

bn to bng cn chm polime, bn tch nc to ra bnh bn v a ti hng mc



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lm phm compost cn nc a qua b nc ti quay vng sau bm v trm bm

nng.

2.3 CC HNG MC CNG TRNH CHNH

2.3.1: TRM BM NNG

Trong nh my x l nc thi, nc thi sau khi loi b Cht rn l lng ( SS)

v BOD bng qu trnh vt l hoc sinh hc s c x thi ra ngoi nh my. Bn to

ra trong qu trnh x l sau khi c c ng v tch nc s c lm phn. Sn

phm phn compost s c a ra khi nh my.

Trm bm nng :

Trong cng tc x l nc thi, nc thi c x l s b ti Trm bm nng.

1) Ngn tch ct

Cc thnh phn ht v c nh ct v ht nng khc c th chm trong nc s lng

y v c loi b ra ngoi. Nu khng c loi b phn x l s b, cc

ht ct trong b lng s b hoc b phn pha sau c th gy mi mn bt thng

cc thit b c kh hoc bm bn v c th gy tc ng do lng ng trong .2) Ging bm

Nc thi sau khi c loi b ct cng vi nc thi ra lc s c bm ti hng

mc x l nc thi.

2.3.2: H NG MC X L NC THI

Cc cht rn c th lng d dng c loi b b lng. Thng qua qu trnh oxi

ha sinh hc cht ha tan v qu trnh phn gii bng x l sinh hc trong b hiu

kh, BOD v SS c loi b. Sau nc thi c kh trng bng clo v nc

thi sau khi x l c thi ra ngoi.


Loi b BODv SS Loi b BOD

Loi b BODv SS

Kh trng


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B lng s b B sc kh B lng cui B kh trng

Hnh 2-1: Loi b BOD v SS trong hng mc x l nc thi

Bng A-1: cc cht nhim quan trng trong nc thi v cng ngh x l c s dng

loi b cht nhim:

Cht nhim L do quan trng Cng ngh

Cht rn l lng

( SS)

Cht rn l lng c th dn n tch ng

bn v hnh thnh iu kin k kh khi

nc thi khng x l c thi ra mi

trng nc.

Lng

Song chn

Lc

Cc cht hu c

c th phn

hy sinhhc

Bao gm ch yu l protein, cacbonhydrat v

cht bo, cc cht hu c c th phn

hy sinh hc c nh lng ph binnht bng ch s BOD (nhu cu oxi sinh

hc) v COD (nhu cu oxi ha hc).

Nu thi b nc thi cha x l ra mi

trng, qu trnh n nh sinh hc s

dn n suy kit ngun oxi t nhin v

to ra s pht trin ca iu kin phn

hy k kh.

Cc dng ca cng ngh

bn hot tnh

B LNG S CP



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-Th tch b : 10V= 10(13x5x3) = 2250 m3

-Thi gian lu trong 1h: 2250/5870=0,38h

-Thi gian lu trong 1 ngy : 0,38 x 24 = 9,12 h

a. Nhim v:

B lng tip nhn nc thi th trc khi i vo x l sinh hc (b sc kh) c gi

l b lng s cp. Cc cht rn c th lng v mt phn ca BOD khng tan s c

loi b trong b ny. Cht rn c loi b trong b ny gi l bn ti v c a

n b c c bn trng lc. Nhn chung ti thy lc y t c hiu qu loi

b 30 n 40% BOD v SS trong nc thi th.

b. Nguyn l hot ng:

-Nc thi i vo vng phn phi nc u b, phn phi u nc trn ton

b din tch ngang ca vng lng.-Cc ht cn tch ra khi nc bng trng lc xy ra vng lng.

-Nc sau khi lng c thu v cc mng t cui b.



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-Cn lng tch ly trong vng cha cn c tm gt cn chy bng dy xch t

ngp trong b, gt dn v mng thu t u b.

-Bm ht cn t gn mng u b ht cn v b c c trng lc.

c. u v nhc im:

-u im:

+D thit k xy dng v vn hnh

+p dng cho lu lng ln

-Nhc im:

+Chim mt bng v din tch xy dng kh cao.

B SC KH

Phng php sinh hc x l nc thi l phng php c bit quan trng trong cng

ngh x l nc thi:

.

Phng php sc ci tin c p dng trong nh my ny. Cng ngh ny mt

trong nhng cng ngh bn hot tnh, n rt ngn thi gian sc kh, gim nng



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MLSS. Cc cht nhim c loi b bi bn hot tnh trong iu kin hiu kh.

Kh cn thit cho qu trnh x l c cp t my thi kh thng qua cc ng khuch

tn.

Cng ngh bn hot tnh, nc thi c ha trn vi bn tun hon. Hn hp ny

i vo b sc kh, ti y vi sinh vt v nc thi c trn cng vi lng ln kh.

Di iu kin , vi sinh vt oxi ha mt phn cht hu c trong cht thi thnh

cacbonic (CO2) v nc tng hp thnh cc t bo vi sinh mi

Hiu qu x l t c trong cng ngh sc kh ph thuc trc tip vo kh nng

lng ca bng bn sinh hc, bng bn ny kt t v lng xung bng trng lc trong

b lng cui .Cng ngh bn hot tnh c iu chnh bng lng kh cung cp, thi gian sc

kh, t l bn tun hon, kim sot MLSS (hn hp cht rn l lng, ti trng BOD

trn mt n v th tch, t l BOD v vi sinh vt, (thc n vi sinh vt ), tui bn .

T l bn tun hon =2

1

210

Q

Q

Q1: lu lng nc tnh bng m3/ngy

Q2: lng bn tun hon m3/ngy

T l MLSS

=( ) ( )

21

21

QQ

RQSSQ ss

+

+

SS: nng cht rn trong nc thi

Rss : nng cht rn ca bn tun hon

Thi gian sc kh bng thi gian lu thy lc

= ngyhQ

V/24



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V: l th tch ca b sc kh

Ti trng BOD trn mt n v th tch

= VBODQ

BOD: trong nc thi (mg/l)

T l BOD v vi sinh vt

=MLSSV

BODQ

MLSS: hn hp cht l lng v nc trong b sc kh (mg/l)

Tui bn

=QSS

VMLSS

B LNG CUI



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a.Nhim v:

B lng tip sau b lng sinh hc (b sc kh) c gi l b lng cui. Mc ch

ca lng trng lc l thu sinh khi vi sinh vt, bn hot tnh. Mt phn bn hot

tnh c tun hon tr li v trn li vi nc thi. Bn tun hon c a tr li

b sc kh gi nng bn hot tnh (MLSS) cn thit cho x l nc thi.

Bn hot tnh mi tip tc c to ra trong b sc kh, v lng bn d c to rahng ngy c gi l bn hot tnh d (bn d) c a ti thit b c c bn ly

tm.

b.Nguyn l hot ng:

-Nc thi i vo vng phn phi nc u b, phn phi u nc trn ton

din tch ngang ca vng lng.

-Cc ht cn tch ra khi nc bng trng lc xy ra vng lng.

-Nc sau khi lng c thu v cc mng thu t cui b.

-Cn lng tch ly trong vng cha cn c cc tm gt cn chy bng dy xch t

ngp trong b, gt dn v mng thu t u b.



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-Bn hot tnh trong b c tun hon tr li b sc kh v lng bn d hng ngy

a v thit b c c ly tm.

c. u nhc im:

-u:

+D thit k xy dng v vn hnh

+p dng cho lu lng ln.

-Nhc:

+Chim mt bng v din tch xy dng kh cao.

+Hu qu x l thp hn b lng trn.

B KH TRNG

a.Nhim v:

Nc chy trn t b lng cui c kh trng bng cch chm nc giaven trong

b kh trng. Mc ch ca kh trng nc x l u ra l bo v sc khe

cng ng khi cc vi sinh vt cha hot ha bao gm vi khun thng hn,



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colifom, vi rt v ng vt nguyn sinh. Cui cng nc thi x l c x ra

ngoi qua cng x.

b.Nguyn l:

- Nc ra khi b th cp a qua b kh trng bi ng ng dn nc vo. Nc

phn b u cho cc ngn ca b theo dng chy zic zc. Ha cht Javen 12% c

chm vo to iu kin thun li cho qu trnh tip xc gia nc thi v ha cht

kh trng. Nc lu trong b ri cui cng a ra ngoi knh Tc Bn R qua cng

x.

c.u nhc im:

-u im:

+Thun li cho qu trnh tip xc gia nc thi v ha cht.

+p dng cho lu lng ln.

+D thit k.

-Nhc im: chim mt bng v din tch xy dng cao.

2.3.3 Hng mc cp nc

Mt phn nc thi kh trng c s dng trong nh my x l nc thi.

1)Dng ra th cp

Mt phn nc thi kh trng i vo b dng ra th cp, mt phn trong

c lc ct, phn cn li c a ti hng mc x l nc thi v hng mc

x l bn v c quay vng li.

2)B lc ct

Phng php lc ct bao gm phng php lc trng lc v lc p lc. y sdng phng php lc p lc. Nng cht rn l lng trong nc x l u

ra c gim xung di 20 mg/l. Khi chnh p tng trong qu trnh lc, b lc

s ra lc nh k. Nc trong b nc lc c s dng ra lc b lc ct

nh k.



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1)B nc lc

ra lc b lc ct hoc a ti thit b c c bn trng lc, tch nc bn li

tm, my thi kh v b ha cht.

2)B nuc thi ra lc

Nc thi ra lc t b lc ct c a ti b nc thi ra lc, lu gi ti y

v sau c bm ti ging bm (ti trm bm nng) x l.

2.3.4 Hng mc x l bn

X l v thi b cht rn v bn pht sinh t x l nc thi l mt trong nhng

cng ngh quan trng nht. Cng ngh c c c s dng gim th tch bn.

Cng ngh tch nc cng c s dng gim th tch bn.

Bn lng Bn c c Bnh bn

NHIM V:

Bn ti c a ra t b lng s cp ti b c c bn trng lc. Ti b ny bn

c tch bng trng lc. Bn c c c a ti b bn hn hp.

1)B c c bn trng lc

Bn ti c a t b lng s cp ti b c c bn trng lc. Ti b ny bn

c phn tch bng trng lc. Bn c c c a ti b bn hn hp.


Hm lng m 99%

Hm lng bn 1%

Hm lng m 97%

Hm lng bn 3%

Hm lng m 80%

Hm lng bn 20%


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2)Thit b c c bn li tm

Bi v bn hot tnh d c bn sinh hc nn n khng d dng c c bi trng

lc. Thit b c c bn li tm to ra bn c c (bn d) trong di hm lng

bn khong 4%.

3)B bn hn hp

Bn ti c c v bn hot tnh d c c c trn ln vi nhau trong b bn

hn hp. N to ra bn c th tch nc n nh nh ha trn u. Hn hp bn

c a ti thit b tch nc.

4)Thit b tch nc bn li tm

Hn hp bn sau khi to bng nh chm polime s c quay li tm trong thit

b tch nc bn li tm v c tch nc. Polime tt nht cho tch nc rt

khc nhau ty thuc vo tnh cht ca bn. Qa trnh ny to ra bnh bn vi

hm lng bn 20% hoc hn, ty thuc vo tnh cht ca bn. Bn tch

nc c a ti hng mc lm phn compost.

5)B tch nc quay vng

Nc tch ra t thit b c c bn v tch nc bn li tm c da ti b nc

ti quay vng sau bm ti ging bm (ti trm bm nng).

2.3.5 Hng mc lm phn compost

Qa trnh lm phn compost c s dng to ra vt liu ging mn c th

s dng nh cht ci to t. phn compost l qu trnh n nh ca cht rn hu

c m bi qu trnh sinh hc t nhin khi cht hu c c to ng v to iu

kin thng kh. Bn cnh vic phn hy cht hu c c th b thi ra, mc tiu ca

phn compost cn l tiu dit vi sinh vt gy bnh v gim khi lng, th tchcht thi.

1)Nh ln men s cp:



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Phn compost tun hon c trn vi bn tch nc to ging cho vi

sinh vt ln men. Thm na tru cng c trn vo iu chnh m v tng

rng kh. Ln men din ra trong iu kin hiu kh to thun li cho s

phn gii ca vi sinh vt. Qa trnh din ra trong nh nhm tiu dit vi sinh vt

nh khun hnh que v gim m.

2)Nh ln men th cp:

Ln men din ra trong iu kin hiu kh, s phn hy ca vi sinh vt c

tng cng y, vt liu mn c to ra v hiu chnh c hm lng

m. Qa trnh ln men dn n nh v t ti ngu.

3)B lc kh mi qua t:Kh gy mi t nh ln men c ht bng qut v dc cp vo t pha

di b lc kh mi qua t. Kh gy mi i qua b v thnh phn gy mi c

loi b nh hot ng ca vi sinh vt trong t. Sau khi kh mi, kh thot ra

ngoi kh quyn.



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BO CO N

- Bn ni ln mt.

- Bn rt ra rt long .

- Bn thnh thong

c, thnh thong

long.

- ng ng x bn ti b

tc.

- Van bn ti khng m

hon ton.

- Bn bt u phn hy.

- C th bn c rt ra qu

nhanh hoc bm bn ti

vn hnh trong thi gian qu

di.

- B lng s cp qu ti thy

lc.

- Chy tt trong b lng s

cp.

- Tch t bn trong b lng

s cp khng n nh do

thay i lng cht rn l

lng trong nc u vo.

- cnh gt bn b mn hoc

h hng cn tr gt c

bn xung h thot. Do

dn n thi gian lu bn

qu di..

- Thi gian lu bn qu di.

- ng ng x bn ti b

nu cn

- Thng ng ng bng kh

hoc phun nc p lc cao.

- Kim tra v hiu chnh van.

- Tng s lng chu k rt

bn ra

- Gim s lng chu k rt

bn ra

- o lu lng nc vo b

- Kim tra mc ca tng ca

trn u vo lu lng

nc vo b lng s cp u

nhau.

- Cn thay i chu k rtbn ra.Bi vy chu k cn

c thit lp cho tng ngy

trong tun. Cn kim tra

thng xuyn xem chu k

thit lp ph hp cha.

- Lm cn b v kim tra

h hoc thay th cnh gt

nu cn thit.



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BO CO N

- Bn hoc nc thien v c mi ( bn

ln men ).

- Vng bt tch t trn

b mt b.

- C cu co bn b

ngt ra

tc.

- Thi gian quay ca co bnqu chm

- Tn xut loi b vng c

thit b thu vng cha

- M men xon vt qu gi

tr thit k tc ng ti c

cu co bn

- Bnh xe khng c cn

chnh thng

- ng chy b bn.

- ng c c th b li..

- Khp ni b v.

- ng ht b tc.

- ng ng x b tc.

- Tng s lng chu k rt

bn.

- Thng ng bawngd cch x

dng kh nn hoc vi phn

nc p lc.

- Tng tc quay.

- Tng tn xut loi b vng

ca thit b thu vng.

- Kim tra t trng bn v

gim n nu yu cu.

- Kim tra ng c.

- Kim tra ci t thit b

bo v.

- Lm cn b lng s cp vkim tra tc co bn trong

b.

- Cn chnh thng bnh xe.

- Lm sch b mt trn

bnh xe chy.

- Kim tra ng c.

- Thay th khp ni.

- Thng tc s dng kh nn



25/35

BO CO N

- Mi mn qu mc

bnh xe co bn

- Bm bn khng

bm bn

- Vi rch tc bnh cng

tc hoc bnh cng tc b

mn.

- Van mt chiu trn ng

ng x tc ng .

- Van cch ly ng.

hoc vi phun p lc cao.

- Thng ng ng bng kh

nn hoc vi phun nc p

lc.

-Lm sch bnh cng tc v

thay th nu cn.

-Lm sch van.

- Kim tra tt c van u m

3.1.1.3.B sc kh.

- Tnh trng xu ca

bn hot tnh.

- pH qu thp.

- ng t khng tt

- Bng bn nh hoc nh

- X ra nitorat ha.

- Kim tra nng oxy ha

tan trong b sc kh.

- Hiu chnh lu lng kh.

- Nng oxy ha tan thp.

- Tng lu lng kh.

- Nng oxy ha tan cao.

- Gim lu lng kh.

- Lu lng kh c kim

sot ( gim gi tr nng



26/35

BO CO N

- Bn mu nu en

hoc en.

- Vng trng hoc bt

trn b sc kh.

- Thi gian lu bn hot tnh

trong b sc kh qu lu.

- Mc nng oxy ha tan

thp.

- Tui bn qu ngn di

iu kin MLSS thp.

oxy ha tan ).

- Gim nng MLSS bng

cch tng nc thi cho n

khi tnh trng c ci thin.

- Tng cng sc kh.

- Tng tui bn.

3.1.1.4.B lng th

cp.

- Ch s SVI cao dn

n cht rn i theo

nc.

- Nng cht rn

cao trong nc ra.

- Bn tun hon qu

- Tui bn c th qu ngn

hoc qu di .

- Nng oxy ha tan thp

trong b sc kh.

- B lng cui b qu ti thy

lc.

- T l quay vng bn tun

hon qu thp.

- Ti cht rn trong b lng

cui qu ln.

- Nng MLSS qu cao.- Bn d tch t trong b

lng cui

- Cnh gt bn b h hng

- Thay i tui bn bng

cch thay i nng

MLSS.

- Tng cng sc kh.

- Kim tra lu lng ti b

lng cui v gim n nu cth.

- Tng t l quay vng bn

tun hon.

- Gim nn MLSS trong

b sc kh.

- Gim nng MLSS.

- Tng t l bn tun hon.

- Lm cn b v kim tra tay



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BO CO N

c dn n ng b

tc.

- Bn rt long c

rt ra.

- Vng tch t trn b

mt.

ngn cn gt bn c

xung h thot.

- Bn c rt ra qu nhanh

ti b lng cui.

- Tn sut loi b vng ca

thit b thu vng khng .

gt.

- Gim t l quay vng bntun hon.

- Tng tn sut loi b vng

bi thit b thu vng.

3.1.1.5.X l bn.

B c c bn

trng lc

- Nc tch ra c

nhiu cht rn.

- Mi.

- C c khng .

- Vch trn khng bng.

- Ti qu mc ln b c c.

- Bn phn hy..

- T l chy trn cao.

- T l rt bn cao.

- Chy tt ca dng chy

trn.

- Tc ng rt bn.

- Giong khng ng.

- Vt l trong bm.

- Bn qu c.

- Chnh bng vch trn.

- Gim thi gian cp bn

trong ngy ti b c c.

- Tng t l rt bn ra.

- Gim t l chy trn.

- Gim tye l rt bn ra.

Chnh bng vch trn dng

ra.

- Thng tc.- Hiu chnh giong.

- Lm sch bm..

- Tng t l rt bn ra.



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BO CO N

- Bm ngt qu ti.

- Tch nc bn

khng tt.

- La chn polyme khng

ng.

- T l cp ha cht khng

ng.

- Hiu chnh polyme b gim

sau thi gian lu gi li.

- Polyme c ha trn t

l khng nh trc.

- La chn polyme ng

theo tiu chun bn.

- Hiu chnh t l cp ha

cht theo tnh cht bn.

- Kim tra tnh trng lu tr

polyme.

- Kim tra nng polyme.

3.1.1.6.Hng mc

kh trng.

- R r ha cht

NaclO.

- Lu lng x khng

( Thp hn thit k ).

- Kim tra giong v mng

ca bm nc javen.

- Tc kh hoc kh ha ca

nc javen.

-Thay th giong hoc

mng.

- X kh.

3.1.1.7.Hng mc

cp nc.

- Ra lc b lc ctkhi ng thng

xuyn.

- Tc ct bi cht rn l

lng.

- Kim tra lu lng ra lc

v ra kh ng.



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BO CO N

BO DNG:

-Kim tra hng ngy v nh k cc thit b x l nc, x l bn, nh phn compost, trm

bm ng Diu. Nm c cc du hiu x c kp thi khc phc, lp k hoch sacha lm tng tui th nh my. Theo di cht lng bn khi tch nc v phn , diu

chnh lng polime cho ph hp.

-Cng tc bo dng: thay du v cht bi trn, thay vt liu tiu dng, ph tng, chnh

cng ca xch ti, iu chnh pht lam kn, trao i vn hnh thit b, vn hnh nh k

my pht in, sn bo dng

-Cng tc sa cha nh: sa cha phng nga s c, thc hin cng tc sa cha, ghi lai l

lch sa cha, kim sot an ton trong khi sa cha

-Cng tc v sinh: v sinh ng nc thi, cc b lng. V sinh cc in cc, cc thit b

c in v phn xung quanh, v sinh hoc thay th b lc thit b v dng c, v sinh c s

vt cht v cnh quan.



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BO CO N

CHNG VI :KT LUN V KIN NGH

4.1 Kt lun :Sau hn hai thng thc tp ti x nghip x l nc thi Bnh Hng, em c mt s kt lun

nh sau:

- Mi trng lm vic tt, an ton lao ng v phng chng chy n lun c ch trng.

- Mi trng xung quanh nh my thong mt c nhiu cy xanh.

- H thng iu hnh c i ng cn b iu khin v tun th theo cc quy nh nghim

ngt.

- X l c mt lng ln nc thi sinh hot ca thnh ph nhm gii quyt vn

nhim hin nay.

- Nhiu thit b hin i s dng vn hnh cng vic x l nc thi.

- B tr ng thu vng trn mi b c s cp v th cp nhm gim lng vng bt.

- Nh my c my pht in nhng khi mt in vn khng cng sut phc v cng

tc lm vic.

- Vic t ng ha cc thit b my mc gip qu trnh vn hnh c chuyn mn ha v

d dng, chnh xc.

- i ng cn b nhn vin c h tr hc nhng phng php, cch thc vn hnh

my mc thng qua cc chuyn gia t nc ngoi.

- Bn cnh nhng thun li, thnh cng m nh my x l nc Bnh Hng t c v

nhng li ch mang li cho ngi dn thnh ph cng nh ngha to ln v vic bo v

mi trng th nh my cng gp khng t kh khn trong cng ngh, thit b, qun l.- Chi ph x l cao: in nng thi kh nhiu.

- Nh my XLNT Bnh Hng c xy dng lm gim bt gnh nng v nhim ngun

nc m cc sng phi gnh chu. ng thi gp phn khng nh trong vic ci thin cht



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BO CO N

lng mi trng nc ti Tp.hcm,vi cng ngh bn sinh hc ci tin,hiu qu x l

cao.Cht lng nc u ra ca nh my m bo theo quy chun mi trng.mc d cng

sut thit k ca giai on hin nay l 141.000m3 /ngy ,nhng cng sut thc t ca nh

my cn ln hn na. Mong nh my s nhn thm c nhiu s quan tm ca cc c

quan chc nng m rng thm quy m x l, tip nhn nc thi t nhiu qun khc,

gp phn quan trng trong vic m bo x l c hiu qu vi lng nc thi sinh hot

ngy cng tng.

- An ton lao ng v cng tc phng chy cha chy c quan tm hng u

4.2 Kin ngh :

Sau 2 thng thc tp ti nh my vi s hiu bit cn hn ch Em xin a ra mt vi kin :

- Vi din tch ca d n xy dng l 40 ha nhng mi ch quy hoch xy dng v i vo

hot ng l 14 ha. Nh my nn m rng c th x l c nhiu nc thi hn .

- Nh my x l nc thi Bnh Hng c thit k v vn hnh n nh,bn cnh

do dn s ngy cng tng v nhu cu sinh hot ca ngi dn cng tng nn tnh cht v

lu lng nc thi ngy cng c nhiu bin ng theo s thay i ca cc hot ng sinh

hot v sn xut trong thnh ph. Do nn thng xuyn lm cng tc theo di tnh cht

v lu lng nc thi m bo vic hot ng n nh ca nh my.



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BO CO N

NHN XT CA QU CNG TY

TP.HCM Ngy Thng Nm 2011

QU CNG TY

NHN XT CA CN B HNG DN THC TP



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BO CO N

..


MINH HU

NHN XT CA GIO VIN HNG DN



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BO CO N

...


HONG TH T N

NHN XT CA GIO VIN PHN BIN



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BO CO N


Binh hung đã được công ty duyệt

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