1 B - C - - PDF document

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• O

Oeg Heah Ahi Dikig Wae Seice

.heaheg.g/d

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Pa 1

• 1. Backgd f Sface Wae Teae Re
• 2. Fiai
• 3. Diifeci
• 4. Oeai

Pa 2

• 1. Reig Reiee
• 2. Eegig Ie
• 3. Rece f Oea

B R

1989: SWTR eied SW ad GWUDI (Gdae Ude Diec Ifece) e fie. Sae eied ideif GWUDI ce. Reied 3-g (99.9%) Giadia ad 4-g (99.99%) i ea. CF/DF: 95% f bidi eadig 0.5 NTU; a < 5 NTU S ad/DE/a: 95% f bidi eadig 1 NTU; a < 5 NTU Reied deecabe diifeca eida. Did adde Cidi.

B ()

1998 Iei Ehaced Sface Wae Teae Re (IESWTR) Addeed cce ab C (eied 2-g ea) CF/DF: Leed bidi adad 95% f eadig 0.3 NTU, a eadig <1 NTU f e ih ai 10,000. Reied Idiida Fie Effe (IFE) bidiee

B ()

2002 Lg-Te 1 Ehaced Sface Wae Teae Re (LT1)

• Eeded 0.3 NTU eiee e

ih <10,000 ai. 2006: LT2 eie addiia C eae f e ih 0.075 c/L i hei ce ae.

S fa e ae e i eied ia addiia eae i Oeg.

B - C

Waehed c Iake ce cfigai Pig faciiie Fac affecig ae ai

1 2 3 4 5 6

2

B - C

Oed aaged b he ae e?

M e hae ie c e hei aehed.

Dikig ae eci a Eegec ee a Pa, gae, ec. Ie-agec ageee (USFS, BLM, ODF, COE)

B - I P

• Scee: e cee, aeig cee, ef-ceaig aig

d cee.

• Cea ih ai ae ba
• Veica bie i e e c i age e.
• Sbeibe i ed efaed ie aid iebed.
• Ifiai gaeie: Sed ie e cee deeah

iebed, ide gh fiai.

R Q F

• Lggig, ee iceae bidi
• Receai (gaie egie, i)
• Deee (iceaed ae daiage ih aciaed

a)

• Seaa ad/ dai fcai i e H
• Agae becig a iceaig be
• Seage eae a ea, ccaia ef

O D O

(, , )

15 6 3 2 2 4 6 8 10 12 14 16 1970 ( A) 1980 (S A, P) 1990 ( ) 2000 ( EPA ) N O D

T C, 26 O-7,000 (CDC)

50% drop 50% drop

D O C

Caiaed ae Diibi Miceae, Uk Teae Iadeacie, F A 2006 A AA Most of these outbreaks involve microbiological agents that would respond to proper disinfection (US ) Milwaukie, WI (Crpto)

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• 10

11 12

3

P:

Pa Paaie

Giadia Labia, Cidi Pa

Baceia

Cabace, Shigea, Legiea

Vie

Heaii A, Nak Age

.. O Cidii

L

• T S

E N C B C, N M 1986 U 78 C C, G 1987 T 13,000 J C, O 1992 M - T - 15,000 M C, 1993 T 403,000 C C, M 1993 T 27 C C, N 1994 T 78 Five of the outbreaks were associated with filtered drinking waters. Three sstems (Carroll, Jackson - Talent, and Milwaukee) were eperiencing operational deficiencies and high finished water turbidities at the time of the outbreaks. All three plants utilied conventional treatment processes that included rapid mi, flocculation, sedimentation, and filtration. The Clark Count outbreak was the onl outbreak associated with a filtered drinking water for which no treatment deficiencies were noted. All five sstems were in compliance with the federal regulations in effect at that time.

FILRAION M ?

Ree ahge ad ec bic heah. Tbidi ea ha bee h be diec eaed ea f Giadia ad C. Tbidi ai caia ee (MCL) ae baed he echg ed:

0.3 NTU (95% f he ie) f ceia diec fiai; aa < 1 NTU. 1 NTU (95% f he ie) f ad, caidge, ad ebae; aa < 5 NTU.

F

Ceia aid ad Diec ( edieai ce) Diaace eah (DE, a fe i Oeg) S Sad Aeaie (ebae, caidge)

C R F

Reie cagai f chage eaiai (aic ie) ad e degee f fccai (age adde hee fcca). Sedieai a eig f cagaed aice, eiee bde fie. Fiai ce ie adi ad hica aiig f cagaed aice.

13 14 15 16 17 1

4

• Paig he ae hgh a fie i hich he

e ae ae ha he aice be eed

A

The gaheig f ga, iid, died id he face f ahe aeia

Rapid sand filter Backwash of filter Cross-section through a dual media

• filter. Tpicall, the laers (starting at the

bottom of the filter and advancing upward) are sand and anthracite coal, or garnet, sand, and anthracite coal. The media in a dual or multi-media filter are arranged so that the water moves through media with progressivel larger pores.

C

Ai fae (a): e c, effecie i a H age. Feic chide: Me eeie, b k i ide H age. P ai chide (PAC): affeced b H, de chage H, k e ih akaii, eae e dge becae dage i . Ai Chhdae (ACH): iia PAC.

1 20 21 22 23 24

5

F A C

• Dage: deeied b ja e f i aiie f fc: (ie,

eig ae).

• Miig: Mechaica aic. Need aid i cheica.
• Akaii: 50 g/ e ca hif H dad.
• Teeae: Cde ae cagai.
• C: Pe-idai a be eied.
• Tbidi: Chagig cdii eie e fee ja e.

Floc basin with baffling

Jar Test showing floc formation

• Sadad bai:

Ua ecaga, ga i d he ae id ee b b gai. Seed (caified) ae e fie .

Tbe ee:

Add caaci Sid eed ee a fe iche Wae f hgh be, id cec he ide ad ide f he b Se adad ed bai ca be efied ih be ee

Pae See (Laea Pae)

Pef ae fci a be ee N a c i Oeg a be ee

Standard settling basin w/ floc

25 26 27 2 2 30

6

Tube settlers in a package plant

A () C

Cagaed ae f hgh caifie. Caifie edia eihe gae aic bead. Caifie i eidica ied f id. Caified ae f fie. Cfiged a a ackage a, a fi, ea iceae he caaci.

Upflow clarifier. Note screens (upper portion) holding clarifier gravel or plastic beads in place.

R F

Ie adi ad hica aiig f fccaed aice. Fiai ae 2-4 g/f2 Reie cabe backah ih ae ad eha ai c. Mied edia fie: ae f gae, ad, ahacie.

The filter is contained within a b, usuall made of concrete. Inside the filter bo are laers of a (sand, anthracite, etc.) and gravel. Below the gravel, a network of pipes makes up the a which collects the filtered water and evenl distributes the backwash water. Baa help distribute the influent water and are also used in backwashing (which will be discussed in a later section.)

D F

N edieai ce. OK f a e ih cie a ae ai. Ma be gai ee fiai. Ua ca bee backah ce if ee fiai.

31 32 33 34 35 36

7

Pressure filters

D E (DE)

C i iig , a aed f dikig ae. Fie, , aga edia ceed f fi kee f iccic dia. Reie a ci bd feed ijeci f DE, hich cec a fie cee (e). O a fe DE e i Oeg. DE filter stack DE cake (pink laer) Sediment thats been filtered

• ut (brown

laer) DE cake Sediment removed

DE

37 3 3 40 41 42

8

F

Fiai ae < 0.1 g/f2 Need a ae < 5 NTU N caga ed Pahge ea cc de bicheica cee ad adi. Ceaed b akig, ad eea eig, 1/8 f ad. Cedied ih 2.0-g Giadia/C ea

In the slow sand filter, water passes first through about 36 inches of sand, then through a laer of gravel, before entering the underdrain. The sand removes particles from the water through adsorption and straining. A laer of dirt, debris, and microorganisms builds up on the top of the sand. This laer is known as , which is German for "dirt skin." The schmutdecke breaks down organic particles in the water biologicall, and is also ver effective in straining out even ver small inorganic particles from water. Birds ee view of 4 large slow sand filter cells Large slow sand filter bed slow sand filter - drained Slow sand filters 3 bas

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Slow sand: left filter in service, right filter out of service Self-contained slow sand filters at a school

A F

Caidge / Bag Fie Mebae Need aed de ha hae e chaege die (hid a eificai f eface)

• ie i daa.

C F

Gd f a e ih f ae (5-20 g). Se caidge eie a ecific e-fie. N backah, caidge ae eaced he ee diffeeia eache ecified ii. M a a chaege d i de be aed.

O

• ( ,

) / &

Cartridge housings in sequence

4 50 51 52 53 54

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Cartridge housings in parallel Another stle of cartridge housings Filter cartridges that go in the housings Bag filter

M F

Ve a e ie, 1 ic e Theefe eed e-fie (abe ih caga) Reie diec iegi e dai (a ai- hd, e-gaed i c). Mebae eidica ceaed ih acid ad/ chie. Faied ebae fibe ca be ied (gged).

M F

Sae-f-he-a echg Ve a e ie, 1 ic e Theefe eed e-fie (abe ih caga) Reie diec iegi e dai (a ai- hd, e-gaed i c). Mebae eidica ceaed ih acid ad/ chie Sa he i ebae ca be eaied

55 56 57 5 5 60

11

• A
• ( ,

)

Membrane skid Control panel showing MIT (pressure deca test) info: MIT=membrane integrit test LRV=log removal value Large membrane plant. Membranes (pressure) Plant with submerged membranes

61 62 63 64 65 66

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Submerged membrane racks Membrane backwash, submerged membranes More membranes (pressure) Membrane clean-in-place chemicals

D :

CF/DF

Backahig Reacig/addig edia eea

S ad

Scaig/ieig Reacig/addig ad eea

Mebae

Backah Cheica ceaig

Caidge/bag

Dicad/eace ed fie

15 M B

67 6 6 70 71 72

13

F hi eci diifeci i eed Eecie Had #1 - #3 fd i he dce ab he ef.

D O

Wha i diifeci? Te f diifeca F f chie NSF/ANSI Sadad 60 Diifeci eiee f face ae CT Tace Sdie ad Cac Tie Iac f diifeca gaic

?

Pce f kiig icgai i ae ha igh cae dieae (ahge) Shd be cfed ih eiiai hich i he deci f a icgai T e:

Radiai (UV) Cheica (chie, chaie, chie diide, e)

Wk b bjecig ae aie (UV) igh a a ae ae hgh a be Daback:

Iefeig age ch a bidi ca cee ahge f he UV igh Effecie agai Giadia ad Cidi b ie a a de N eida i ee i he ae cie diifecig hgh he diibi e F hi ea, chiai f eida aieace i eied he UV i ed

NF 55 ( aed f GW TC+ ih a diibi)

UV reactors at a large water sstem

73 74 75 76 77 7

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Quart UV bulb sleeve

C D

Chie Chaie Chie diide Oe

C

The ide ed f f diifeci A ed a a idiig age f i, agaee ad hdge fide ad f cig ae ad d Effeciee a a diifecig age deed fac ch a H, eeae, fee chie eida, cac ie ad he iefeig age

F C

Sdi Hchie Oie geeaed di hchie Caci Hchie Chie Ga The iid f f chie Cea ad ha a igh e c Odia hehd beach (5% chie b i) i he c f Idia egh: 12% ad 15% i

()

Ca e 4% f i aaiabe chie ce e h; hd be ed f e ha 60 90 da Ve cie; hd be ed ad ied aa f eie ha ca be daaged b ci

7 1 2 3 4

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D P/ C O-

• 0.8% di hchie i dced dead

b cbiig a, ae & eecici Eeci f bie i dce di hdide ad chie ga, hich he i f di hchie Hdge ga bdc; eed ahee Aeiae afe cce aciaed / haig ad ig bk chie Highe iiia c, high e c Mied ida (iea)

Electrodes for onsite chlorine generation

C

The id f f chie Ua abe de f Cai 65% chie b eigh Whie eih-hie gaa aeia ad i fai be i ae Ia kee i a d, c ace Me abe ha iid Ued b a e / f e

Calcium hpochlorite erosion feeder

C

5 6 7

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C (C2)

99.5% e chie e-gee c 2.5 heaie ha ai Liified a eeae a 107 i hece he eied cide aca cai iified chie ga. Liified C2 i eeaed f ak a chie ga, hich i he ijeced i he ae ea. a ed b age ae e Sae e a fid iiia c f eai hibiie

1-ton chlorine gas clinders 1-ton chlorine gas clinders Note: scales used to weigh clinders (to tell when the are empt) 150-lbs chlorine gas clinders Chain to secure tank in place Spare tank

• n hand

Tanks clearl marked

C

Chie + aia = chaiai T adaage ega chiai:

dce a ge aig chie eida (hef e ih eeie diibi e) a dce fee b-dc deedig he aicai

Diadaage:

Need a f cac ie achiee CT caed fee chie (300 ie e) hich i h ed f ia diifeci Reie ecific ai f chie aia ee eia ae ai be

Ammonia for making chloramines

1 2 3 4 5 6

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O

Ce ga (O3) Sge f he c diifecig age A ed f c f ae ad d Eee Uabe; M be geeaed -ie Mafaced b aig ai ge hgh eecde ih high, aeaig eia diffeece

Large water sstem oone Large water sstem oone Oone contactors Oone is to reactive to store, so liquid ogen is used for making

• one

O

Sh eaci ie eabe icbe (icdig ie) be kied ihi a fe ecd Ree c, ae, ad d caig cd Oidie i ad agaee De e aga i De dce hageaed DBP

7

• 100

101 102

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O

Oefeed eak ca be dage C i high caed ih chiai Iaai ca be cicaed Oe-deig deice i eeded a he eha f he e-eac ee g- dcig ga f eeig he ahee ad fie haad

O ()

Ma dce deiabe biaed bdc i ce ae caiig bide N eida effec i ee i he diibi e, h chiai i eied Mch e be i ae ha chie; h ecia iig deice ae ecea

C

A

Me effecie ha chie ad chaie f iaciai f ie, Cidi, ad Giadia Oidie i, agaee, ad fide Ma ehace he caificai ce C T&O eig f agae ad decaig egeai, a e a heic cd Ude e geeai cdii hage-bied DBP ae fed Ea geeae Pide eida

C ()

D F he DBP chie C aciaed ih aiig, aig, ad aba eig f chie ad chae ae high Eie i ica eed, ad he c f he di chie i high Eie, i be geeaed -ie Dece i igh Ca ead dci i d i e e.

NF/ANI 60

Addee he heah effec iicai f eae cheica ad eaed iiie. The icia ei addeed ae:

I he cheica afe a he ai de, ad Ae iiie be he ai acceabe ee?

NSF approved sodium hpochlorite

103 104 105 106 107 10

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D R

Sface Wae Teae Re (SWTR) eie 3-g edci f Giadia ig a cbiai f ad 2.0 2.5-g ea i achieed hgh

• 0.5 1.0-g iaciai i achieed hgh
• Deeie hich c f EPA abe ed

cacae CT (0.5 1.0-g)

C?

I a a deeie if diifeci i adeae

C = Chie Cceai Cac ie

D cfe CT ad Cac Tie

H C?

We e he EPA abe deeie he CT eeded iaciae Giadia (CTeied)

We eed k H, eeae, ad fee chie eida a he fi e i de e he EPA abe.

The e cae ha ih he CT achieed i ae e (CTaca)

• CTaca be ea geae ha

CTeied

C :

Ued deeie cac ie (T) hich i ed i cacaig CT Deeie he ie ha chie i i cac ih he ae f he i f ijeci he i hee i i eaed (eie efeed a he CT ege) Ma be a befe he 1 e Ma be e ha e CT ege Eiae f cac ie ae aed f cacaig CT f face ae!

The degee f h-ciciig i l aimael k il a ace d i cdced.

Wa -? 1) F a 2) F a

10 110 111 112 113 114

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Beiebh Rie Macke Ceek (gai f a)

36,000 g a ae ak 4,000 g a ae ak

S ad fie Ce #1 S ad fie Ce #2 210,000 g ceae/eei Diibi e C eida, H, e, f Ra NTU Sdi hchie F, NTU

Iake/ ai 25h be

• The CT segment is

from where chlorine is added here:

Beiebh Rie Macke Ceek (gai f a)

36,000 g a ae ak 4,000 g a ae ak

S ad fie Ce #1 S ad fie Ce #2 210,000 g ceae/eei Diibi e C eida, H, e, f Ra NTU Sdi hchie F, NTU

Iake/ ai 25h be

• Thru the clearwell,

to where chlorine residual is measured here:

Beiebh Rie Macke Ceek (gai f a)

36,000 g a ae ak 4,000 g a ae ak

S ad fie Ce #1 S ad fie Ce #2 210,000 g ceae/eei Diibi e C eida, H, e, f Ra NTU Sdi hchie F, NTU

Iake/ ai 25h be

• So if we were conducting a tracer

stud, this is the segment we would be looking at and determining the contact time T for.

():

Diffee ehd:

• 1. If ae i ed f he ceae a diffee ae

deedig ie f ea, d ace d a each f he f ae

• 2. D a ica ie/e eak h dead f
• 3. Oheie e -cae ceai aaee:
• Highe f ae f ceae (cdc dig

eak h cdii ha iae e.g. e a hda)

• Kee f ae ca
• Kee ceae ae ee ce a

ii eaig ee

():

M ed if eak h dead f iceae e ha 10% f he ai f ed dig he ace d Ci ae e ih ai <10,000 ad -fi -ci e ca e he cici ide ef a ace d M bi a a DWS f aa i cdcig he ace d (ee if ig he cici ide).

115 116 117 11 11 120

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E #1

E #1: Ta

D: Look at the diagram and answer the questions. F 1: Wa Ta Pa Sih Ceek S ad fie #1 S ad fie #2 Reei 75,000 ga. Ceae 220,000 ga Chie ijeci T diibi NTU, f NTU NTU F 16.1 a e 10.5 i e F c ae: 270 g a T he Q: If this was our treatment plant, highlight the part of the plant where ou might conduct a tracer stud. In a worst-case scenario tracer stud, what would the flow rate be? In a worst-case scenario tracer stud, what would the clearwell level be?

E #1: Ta

D: Look at the diagram and answer the questions. F 1: Wa Ta Pa Sih Ceek S ad fie #1 S ad fie #2 Reei 75,000 ga. Ceae 220,000 ga Chie ijeci T diibi NTU, f NTU NTU F 16.1 a e 10.5 i e F c ae: 270 g a T he Q: If this was our treatment plant, highlight the part of the plant where ou might conduct a tracer stud. In a worst-case scenario tracer stud, what would the flow rate be? In a worst-case scenario tracer stud, what would the clearwell level be?

E #1: Ta

D: Look at the diagram and answer the questions. F 1: Wa Ta Pa Sih Ceek S ad fie #1 S ad fie #2 Reei 75,000 ga. Ceae 220,000 ga Chie ijeci T diibi NTU, f NTU NTU F 16.1 a e 10.5 i e F c ae: 270 g a T he Q: If this was our treatment plant, highlight the part of the plant where ou might conduct a tracer stud. In a worst-case scenario tracer stud, what would the flow rate be?

270

In a worst-case scenario tracer stud, what would the clearwell level be?

10.5

H C

Ue he ie T f he ace d he h eig f i he Cac ie (i) c

Ue he ae T (highe f) if he ace d a de a ie f ae

Thi a be eac ie, b i eee cae (a g a he eak f i e ad ceae e i e ha he ee a he ie f he ace d)

H C (.)

O, ce k he ie T f he ace d, ca back-cacae deeie he baffig fac f he ceae

Baffig fac (%) = Tie (i) F Dig Tace Sd (g) Ceae Ve Dig Tace Sd (ga)

T ca be adjed baed f (a <110%) ih he fig eai:

T = Ce ceae Ve (ga) Baffig Fac (%) Peak H Dead F (g)

If ace d icde ieie ege ie ak, cac he ae f gidace ig baffig fac

121 122 123 124 125 126

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I

• Diifeca ca eac ih gaic f

diifeci bdc

Chie: TTHM & HAA5 Oe: Bae

Pe-chiai TOC

OPERAION O

Pe ie aig cai Pe eae a aig cai

Tbidi Chie eida TOC

Ie caibai

Tbidiee Chie aae Cheica feed

Oeai & Maieace Maa

P

Daa ided b ie ide he bai f aeig ae ai ia ge i igh! C be

Saig cai Meaee echie Caibai feec ad aach

Pibe i

Ma eie ieigai (ecia die) Mdificai ae ie Eabih gideie ae ie ceaig Eabih caibai cede

P :

Ra bidi

Aie a SW e Lcai: e-eae Feec: ega eiee b eed k f e eae a eai

Idiida fie effe (IFE) bidi

CF, DF & ebae Lcai: afe each idiida fie Feec: ci (ee 15 ie) K ha he igge ae!

IFE (C/D)

Re he fig ee iediae ad cdc a fie fie ihi 7 da (if bi ea ei) if he IFE bidi i:

> 1.0 NTU i 2 cecie 15-i eadig > 0.5 NTU i 2 cecie 15-i eadig ihi 4 h f beig backahed ake ff-ie

Re he fig ee ad cdc a fie ef aee ihi 14 da if he IFE bidi i:

> 1.0 NTU i 2 cecie 15-i eadig a a ie i each f 2 cecie h.

A CPE be de ihi 30 da if he IFE bidi i:

> 2.0 NTU i 2 cecie 15-i eadig a a ie i each f 2 cecie h.

127 12 12 130 131 132

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P : (.)

Cbied fie effe (CFE) bidi

Aie a SW e Lcai: a fiai i cheica addii ad a age Feec: CF/DF > 3,300 . ci CF/DF 3,300 . ee 4 h Aeaie - dai

P : C

Lcai: e i (EP) he e

EP = ceae, a befe 1 e

Feec

Ci > 3,300 ai 1-4/da f 3,300 ai

M aiai ii 0.2 a a ie

P : (OC)

Aicabii

CF (2.5-g a): eied a TOC & akaii ad fieed TOC A he: a TOC eied aif f DBP iig edci (>500 ai)

Feec

Mh; a be edced Qae if fieed TOC i <2.0 f 2 ea, <1.0 f 1 ea Qae if DBP edci i gaed

P : (OC) (.)

Lcai

Ra TOC & akaii: e-eae Fieed TOC: CFE i cheica addii/diifeci

<2.0 f 2 ea, <1.0 f 1 ea

Coagulant Chlorine

E #2

Pe aig cai f bidi, chie eida, ad TOC

Wk i g deeie e aig cai WTP diaga

E #2: P , , TOC S F B S B R S A P F T ( ) F S P A R

• #1

R

• #2

5 MG C S B

• T

133 134 135 136 137 13

24

E #2: P , , TOC S F B S B R S A P F T ( ) F S P A R

• #1

R

• #2

5 MG C S B

• T

R , TOC & IFE IFE CFE , TOC C Sdi hchie Sda ah

1400 ga bffe ak (e e f be ) (2) 15 h aiabe eed VT be

• (2) 5 h VT

be ead/ag, 250 g each Bake aie / a backah 12 ie f ie e e 72 150 Fie kid 1: 125 g a Fie kid 2: 125 g a F F T diibi e Sdi hchie Sda ah 1400 ga bffe ak (e e f be ) (2) 15 h aiabe eed VT be

• (2) 5 h VT

be ead/ag, 250 g each Bake aie / a backah 12 ie f ie e e 72 150 Fie kid 1: 125 g a Fie kid 2: 125 g a F F T diibi e R , TOC &

• IFE

IFE CFE , TOC C

I

Tbidiee (ie, abe bech)

M be caibaed e aface a ea ae ih a ia adad

Fai i Sabca (abiied fai)

Secda adad ed f da--da check Check i ed deeie if caibai ih a ia adad i ecea

Gee Maface ided (e.g. Hach ICE-PIC)

Portable turbidimeter

I

Chie aae

Hadhed

F aface ici

Iie

Check caibai agai a hadhed ha ha bee caibaed A ea eek F aface ici if f caibai

13 140 141 142 143 144

25

Portable colorimeter

I

Cheica feed

Caibai eae bh he eed ad he ke (a f cheica ed) accae dage ca be cacaed Ceae a ce; Se he ke a haf a i O a gah, eed f 10% 100% X ai P cheica a Y ai (/i) Recd dad i gadaed cide f 1 ie

I (.)

Cheica feed (c.)

P ce i a ia ideif he a a be i eed f aieace eacee A h ce i gd (hd fi ce a aigh ie) M cae ifai a aig eed be a f caibai ce Sggeed feec: e ha aa

Chemical feed pumps

E #3

Ceae a ce ig ade- daa i D: Ue he daa ided i Eecie #3 ceae a ce. P ce hd be h ad fai iea. A bcig jagged ce idicae he eed

• aieace. Maieace eeded a icde

ceaig, diahag eacee ad/ ea eacee.

145 146 147 14 14 150

26

E #3: Ca a a

D: Use the data provided in the eamples below to create a pump curve. Pump curves should be smooth and fairl linear. A bouncing or jagged pump curve indicates the pump needs maintenance. Maintenance needed ma include cleaning, diaphragm replacement and/or seal replacement. F #1 aa: Plot the data points on the graph. Does the pump need maintenance? S T V F R % S M

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10% 3 60 20 20% 3 360 120 30% 3 420 140 40% 3 810 270 50% 3 900 300 60% 1 450 450 70% 1 400 400 80% 1 525 525 90% 1 530 530 100% 1 575 575

E #3: Ca a a

D: Use the data provided in the eamples below to create a pump curve. Pump curves should be smooth and fairl linear. A bouncing or jagged pump curve indicates the pump needs maintenance. Maintenance needed ma include cleaning, diaphragm replacement and/or seal replacement. F #1 aa: Plot the data points on the graph. Does the pump need maintenance? Y (a ) S T V F R % S M

• /

10% 3 60 20 20% 3 360 120 30% 3 420 140 40% 3 810 270 50% 3 900 300 60% 1 450 450 70% 1 400 400 80% 1 525 525 90% 1 530 530 100% 1 575 575 F #2 aa: Plot the data points on the graph. Does the pump need maintenance? N (a-, ) S T V F R % S M

• /

10% 3 120 40 20% 3 270 90 30% 3 480 160 40% 3 690 230 50% 3 960 320 60% 1 400 400 70% 1 460 460 80% 1 500 500 90% 1 540 540 100% 1 560 560 B : Referring to feed pump #2 data above, if ou normall have our speed set at 50% in order to maintain 1 ppm of chemical, what speed do ou need to change it to if ou do a new pump curve and get the following results: F #2 NEW aa Answer: 60% S T V F R % S M

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10% 3 60 20 20% 3 120 40 30% 3 270 90 40% 3 480 160 50% 3 690 230 60% 1 320 320 70% 1 400 400 80% 1 460 460 90% 1 500 500 100% 1 540 540

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