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# OAR Box 1313 Prepped by LaTeia Shed

Document

Number: 

# 33 ) ll-B- 7
Docket Number: 

# A-88-0 2

Printed 6/12/20089:03:28AM

Sheet 33 of 99

# 1 $ A-88-0 2
MIDWES TRESEARC H INSTIT l

450 5 Creedmoo rR Raleigh

. N.C

. 2

7 Telephon e (919 ) 781- 5 

# FINA L

Date : Apri l 27 , 198 6

(Finalize dNovembe r 5 , 1986 ) Subject : Sit e Visit— C & RChrome Services , Incorporate d

Chromiu m Electroplatin g NESHA P EPA Contrac t 68-02-3817 ; ESE D Projec t 85/02 a MR I Projec t 7717- K From : Randy

Strai t 

# fitTo : Al Vervaer t

ESED/ISB/SS S (MD-13 ) U . S . Environmenta l Protectio nAgenc y Researc hTriangl e Park , N.C . 2771 1 I . Purpos e Th e purpos e o f thi s sit e visi t wa s t o gathe r backgroun dInformatio n abou t th e chromiu

m electroplatin g operatio na t thi s plan t an dt o determin e th e suitabilit y

o f thi s plan t fo r chromiu m emission s testing . II . Plac e an

dDat e C & RChrome Services , Incorporate d 94 0 Hanove r Stree t Gastonia , Nort hCarolin a 2805 4 (704 ) 861-883 1 Marc h27 , 198 6 III . Attendee s C & RChrome Services , Incorporate d Willia m A . Cottingham , Sr. , Presiden t Charle s M . Reynolds , Vic e Presiden t U . S . Environmenta l Protectio nAqenc y Al Vervaert , IS B Midwes t Researc hInstitut e Randy Strai t

/ *P. 3



### IV . Discussio n We arrive da t th e plan t a t 1:0 0 p.m . Th e visi t consiste do f discussion s abou t th e hardchromiu m platin g operatio nan dchromiu

m emission s captur e an

dcontro l equipmen t durin g a tou r o f th e plant . A . Genera l C & RChrome Service s 1 s a smal l jo bsho ptha t perform s har d chromiu m electroplatin g an

delectroles s nicke l platin g o f too l an ddi e molds ; hydroll c shafts , bearings , an dplungers ; an

dseal s fo r automobil e parts . Th e plan t specialize s 1 nth e fabricatio no f conformin g anode s whic har e designe dt o conform t o th e shap e o f th e part s t o ensur e aneve n an dhigh-qualit y

plate dsurface . Th e plan t operate s 1 2 hour s pe r day , 5 day s pe r week , an

d5 0 week s pe r year . B . Proces s Ther e ar e fou r har dchromiu m platin g tank s use da t thi s plant . Th e dimension s an

doperatin g specification s fo r eac htank ar e liste d1 n Tabl e 1 . Tank s 2 an d3 contai nth e conventiona l chromi c ad d(Cr0 3 

### ) platin g solutio nwit ha sulfuri c aci d(HjSO^ ) catalyst , an dTank s 1 an

d4 contai na proprietar y Cr0 3 

### platin g solutio nwit ha fluorid e (F ) catalyst . Th e part s ar e loade dint o an dremove dfro

m th e platin g tank s manually . Afte r bein g plated , the y ar e rinse dwit hwate r ove r th e platin g tank s t o reduc e th e dragou t o f chromi c acid . C . Emission s Contro l A schemati c o f th e emission s contro l system fo r th e hardchromiu m platin g operatio ni s presente d1 nFigur e 1 . Double-side ddraf t hood s ar e installe do nTank s 1 , 2 , an d3 , an da triple-side ddraf t hood1 s Installe d o nTan k 4 t o captur e chromiu m emissions . Emission s fro m Tank s 1 an

d2 an d fro m Tank s 3 an

d4 ar e ducte dt o separat e packed-be dwe t scrubber s locate d i na roo m behindth e platin g facility . Bot hscrubber s (serie s 33 , siz e 6,000 ) ar e manufacture db y Hartzel l Propelle r Fa nCompany o f P1qua , Ohio . On e scrubbe r wa s Installe d1 n1981 , an don e scrubbe r wa s Installe d in1985 . Desig noperatin g specification s fo r th e Hartzel l scrubbe r ar e presente di nth e attachmen t t o thi s report . Th e ga s flo

w rat e o f eac hscrubbe r i s abou t 3,60 0 actua l cubi c fee t pe r minut e (acfm) . Eac hscrubbe r i s mad e o f fiberglas s an dcontain s a bed fille dwit hpolypropylen e packin g materia l tha t i s designe dt o achiev e a larg e wette dsurfac e an dlo w frictio nloss . Th e scrubbe r bedi s continuousl y

spraye dwit hwate r throug hnozzle s locate da t th e to po f th e bed . Th e wate r flow s b y gravit y

downwar dthroug hth e packin g materia l crosscurren t t o th e ga s flow . Th e waterflow rat e fo r bot hunit s 1 s approximatel y

1. 5 gallon s pe r minut e pe r 1,00 0 acfm . Th e firs t two-third s o f th e scrubbe r bedi s washe dwit hwater , an dth e remainin g one-thir do f th e bedact s a s a mis t eliminator . Wate r fro m bot hscrubber s i s draine d int o a commo nholdin g tank an drecirculate dt o eac hscrubbe r o na continuou s basis . ^

### TABL E 1 . SPECIFICATION S O F HAR D CHROMIU M PLATINGTANK S A T C & RCHROME SERVICE S

Tan k No 

## 1 2 3 4 Dimension s

(1 . w , h) , f t 6 , 3 , 5 , 4 6 , 3.5 , 4 6 , 3.5 , 6 8 , 2 , 5 Proprietary . Capacity , ga l 

## 630 630 940 600 Voltage ,

volt s 

## 2. 8 3. 5 3. 8 6. 0 Current ,

ampere s 

## 15 0 15 0 1,10 0 2,00 0 Temp. , ° F



## 120 130 130 120 Metho do f

cooling
Wate r Wate r Wate r Wate r Constituents ,

Cr0 3 

### H 2 

### S0 4 

## 2 0 3 3 3 3 20 — 

### 0.2 8 0.2 8

— 

### oz/ga l

F


## a

—

— 

## a



# u
J* .

### HARTZEL L SCRUBBE R

WAL L 

# til t HARTZEL L SCRUBBE R LEGEN D

AIRFLO W

• * UATE R FLO

W

WAL L

TAN K 4 TAN K 3 

### Ui t RECIRCULATION

TAN K

J
TAN K 

### 2 i i
TAN K 

### 1



### Figur e 1 . Schemati c o f the chromiu m plating operatio na t C & RChrom e Services .

T l inP. 6



### D . Conclusion s Th e fou r chromiu

m platin g tank s a t thi s facilit y appea r t o hav e effectiv e emissio ncaptur e systems , an dchromiu

m emission s ar e controlle d b y packed-be dwe t scrubbers . Althoug hemission s testin g 1 s possible , 1 t i s no t recommende da t thi s time becaus e th e desig no f th e scrubber s i s no t typica l o f th e packed-be dscrubber s currentl y bein g purchase db

y owner s an doperator s o f chromiu m platin g operation s fo r controllin g chromiu m emissions . Attachmen t



# 6P. 7



### Attachmen t 

# Fiberglas s Fum e Scrubbe r

Hartzel l Propelle r Fa n Company , Piqua , Ohio/Divisio n o fCastl e Hill s Corporatio i

»-»......:

_* .n c r

C TP. 8 

# Specificaiian s Fiberglas s Fum e Scrubbe r

Series 33 

# O Duc t connection—plastic , fiberglas s o rmeta l coate d wit h corrosio n resistan t material

. Supplie d b ycustomer

. (^•VtUtttel l Fiberglas s Fum e Scrubber

.

•t iJilfiiWteel l Fiberglas s B«tt-Qr"**ji*4h*c t Axia l Fa n 'vitt l •$.Ewf 9lbtf; glass Stac k

Cjp

. ' V • - ' • **? « M S com p le wwtt h pataMfjpl&fstand

. H^UJStandconfiguratio n varie * wit h «I M o f icrubber

.

HARTZEL L BEL

TDRIV E FIBERGLAS S OUC

TAXIA L

FIBtRGLAS S ELBO W Prir.oi p ,i l Oimorsion* "

SIZ E | A 3000 ' 18y 8 6000 1 24'/ , 12000 ; 3 3 SIZ E , E j_oqo ! 753 4 60G0J9 9 12000IT2 1 SIZ E 300 0 600 0 1200 0 J

1 1 % 13'/ j i9y 4 B 21 

### .'5 2 8 3 6 >' s F 3 6 4 8 48'/ a K
2 ~2K 

### ^ c T0 20V i |4!j-'. i -,..- . . 26 %

. r. o 34(' H <#Q d .7.9. 96 ' 10 9 V-, L I t 3 3 43'/.
- I 1 M 1 5 j :•' ) 1 7 i 1 4 

### "ii'Z ] 52'/ , Not* : Specification s ar e suo|ec t t o chang*

. Certifie d print s ar e avalluol e 

# 7P. 9 

# Performanc e

Hartzel l Fiberglas s Fum e Scrubbe r Siz e 300 0 wit h 18 " Serie s 3 5 F.i n

CF M

IOO O 150 0 200 0 250 0 300 0 

### 5 BP H .3 2
" .5 3 .7 7 1.15 " 1.5 9 FA

N RP M 127 0 1538 " 179 7 206 5 232 3 BPH

.5 0 .7 5 1.0 7 7.4 3 1.95 FA' N

" RP M 143 6 170 3 197 2 222 6 248 7 EXTERNAL STATI C PRESSURE *

1 BP H .6 9
" .9 5 1.3 5 1.7 9 2.38 " FA

N RP M 157 1
" 184 6 "2108 " 2374 ' 264 0 FA

N ' BP H RP M .b 9 1.25 1.62 2.1 6 2.8 0 169 1 "197 3 223 5 2497 " 276 0 "FA N

BP H RP M 1.1 0 1.49 "
" 1.9 1 2.53 ' 3.1 8 180 9 208 0 "2343 " 2605 " 286 0 BP H 1.3 3 1.7 2 2.27 " "2.90 "
— FA

N RP M 1192 2 216 2 245 2 271 0 Hartzel l Fiberglas s Fum e Scrubbe rSiz e 600 0 wit h 24 " Serie s 35 Fa n
CF M
200 0 "300 0 400 0 506b " 600 0 EXTERNA L STATI C PRESSURE *

Vi * BP H .6 3 1.0 4 ~'l.72 ~ 2.66 " 3.9 6 FA

N RP M IOO O 123 8 1470 ~ 170 2 193 4 % ' BP H .9 2 1.5 0 2.2 6 3.2 6 4.6 9 FA

N RP M 111 8 136 6 160 7 183 0 205 5 1 " BP H 1.2 9 1.9 3 2.7 8 "3.9 0 5.4 3 FA

N RP M 121 9 146 3 170 2 193 4 216 6 I V BP H 1.6 6 2.3 2 3.3 1 4.5 2 6.2 4 FA

N RP M 131 2 "l545 ' 1782 " 202 3 227 0 IVi ' BP H 2.0 4 2.8 0 3.9 0 5.1 5
— F A N RP M 139 2 162 2 186 0 210 0

— ftk' BP H 2.4 7 3.3 0 4.5 0 5.8 0

— FA N RP M 147 2 170 0 193 4 216 6

—
Hartzel l Fiberglas s Fum e Scrubbe r Siz e 1200 0 wit h32 "

CF M
500 0 600 0 700 0 800 0 900 0 1000 0 1100 0 1200 0 

### v.-

BH P 1.2 8 1.6 7 2.1 4 2.7 2 3.4 9 4.3 5 5.44 6.7 0 FA

N RP M 85 5 93 7 101 9 110 4 119 7 128 8 139 0 148 9 »/.>

- BH P 1.8 1 2.2 8 2.8 6 3.5 2 4.3 7 5.1 7 6.2 0 7.6 5 FA

N RP M 95 3 103 8 112 0 120 0 128 8 136 4 145 8 155 7 Serie s 3 5 Fa n

EXTERNA L STATI C PRESSURE * l.O " BH P 2.4 8 2.9 8 3.5 8 4.4 1 5.0 5 6.0 6 7.2 7 8.7 0 FA

N RP M 103 9 112 0 120 2 128 4 135 2 143 8 153 0 162 3 l'A

" •H P 3.0 8 3.6 8 4.2 8 5.1 5 5.9 6 7.0 5 8.3 6

- FA

N RP M 111 0 119 4 127 0 135 8 143 0 151 3 160 0 1V4 " BH P 3.6 5 4.3 0 5.0 3 6.0 5 7.0 3 8.l6 " 9.3 6

- FA

N RP M 117 1 125 0 133 0 142 8 151 2 T"58 3 166 2

~ IK " BHP 4.4 0 5.0 6 6.0 3 7.0 0 8.0 1 9.2 5
—
— FA

N RP M 123 9 131 3 140 5 149 1 157 6 165 5
—
— "These units haw ben tested with washer, elbow a net external and can be applied

to ductwork

and Water Flou- = 1.5Gal..'Min./1000C.F.M. nd fan in place hood losses. Thc static pressure shown is

Performanc

e shown I s fo r belt-driv e fan s wit h Inle

t an d outle

t ducts . RP M shown I s nomina l an d performanc e I s based o n actua l spee d o f test . Al l belt-driv

e fa n rating s Includ e bel t losses .
Stati cPressur e Los s Throug h Scrubbe rInche s W.G

.

fr FLO W 10 0 7 5 5 0 300 0 .7 0 .4 0 .1 7 s:Z E

600 0 .7 0 .4 0 .1 7 12.00 0

1.2 5 .6 0 .2 8
Scrubbe r Be d Capacit y
SIZ E 300 ( 60C ( 120C ! 5 Cu . F» .

9 2 0 3 3 5 SURFAC E ARE A

PACKIN G 3 8 7 Sq . Ft . 8 6 0 Sq . Ft . 144 0 Sq . Kt . Th e Packin g Unit s ar e 2 " Din

. Ther e ar e

3fi 8 pieces/Cu

. Ft

. Th e packin g weigh t i s 5. 5 Lbs./Cu

. Ft

. Surfac e are ai s 4 3 Sq

. Ft. / Cu

. Ft

. 9(K r

voi darea . I t

ha s lo w pressur e dro p an dhig hmas s transfe r coefficients

. Ver y goo dredistributio npropertie s an dre sist s settling

. Resistan t t o mos t

chemicals

. Nu t suitable , however , fo r aromatic , ar. d chlorinate dhydrocarbons

.

# Constructio n Feature s P.1 0

Th e Hartzel l Fiberglas s Fum e Scrubbe r i s precisel y engineere dt o remov e practicall y al l type s o f contaminatin g industria l fumes , es peciall y acid , fro mth e ai r bein g exhauste d fro man y localit y i naplant

. Th e uni t operate s a* , follows

. Fum e lade n ai r come s u p throug hth e duc t connectio nan d passe s horizontall y throug htu e Hartzel l Fum e Scrubber

. Wate r

flows verticall y down

ward

. Thi s permit s gravit y t o ai di nth e wash

in g action

. Wate r

i s introduce dt o th e first 2/ 3 o f apacke dbe do f

polypropylen e whic hi s slante dt o tak e car e o f

th e slop e o f

th e water

fall

. Th e las t

1/ 3 o f th e be dact s a s amis t

an d drople t eliminator

. Clea nai r

i s discharge da s saturate dvapo r

withou t

droplets

. Wate r usag e i s lo w an dwate r

ca nb e recirculated

. Th e uni t i s availabl e i n thre e sizes

. Siz e 300 0 wit haHartzel l Fiberglas s 18 " Duc t Axia l Belt-Drive nFan

. Siz e 600 0 wit haHartzel l Fiberglas s 24 " Duc t

Axia l Belt-Drive nFan

. Siz e 12,00 0 wit haHartzel l Fiberglas s 32 " Duc t Axia l Belt-Drive nFan

. Fiberglas s van e sectio n(optiona l extra ) o ndischarg e in

crease s S.P

. 15-20%

. Air Flow Th e flow o f

ai r throug hth e scrubbe r

i s hori

zontal

. Housin g i s designe dfo r eas y flow. 40 0 FP M maximu mvelocit y throug hth e be dsec tio nresult s i nefficient

washin g action

. En

tranc e an dexi t

losse s ar e low

. S Plos s i s ver y low

. Water Flow N o nozzle s ar e use dt o introduc e water
. Wate r enter s throug hhole s i nI'V C pip e ring

. Wate r flow i s vertica l downwar dwhic hlet s gravit y ai di nth e washing

. Wate r usag e i s low—IV i t o V/i g.p.m . pe r

100 0 CFM

. Wate r

ca nb e recirculated

. (Pum p t o b e furnishe db y cus tomer. ) Scrubber Bed Scrubbe r be di s compose do f

polypropylen e packin g designe dfo r

hig hwette dsurfac e wit h lo w frictio nloss

. Wate r i s introduce dt o th e first 2/ 3 of th e packe dbed

. Th e las t 1/ 3 o f th e be dact s a s amis t an ddrople t

eliminator

. Be d i s slante dtu tak e car e o f th e slop e o f

th e waterfall

. Slotte dscreen s hol dbe di nperma nen t position

. Construction Cas e an delbo w ar e Hartzel l Fiberglas s an d corrosio nresistan t

po'.yeste r

resin

. Pipin g an dperforate dscreen s tha t hol d polypropylen e packin g ar e PVC

. Externa l bolt s an dnut s ar e 31 6 stainles s steel

. Fan s an dstac k

cap s ar e Hartzel l Fiberglass

. Stan di s painte dsteel

. Ratings Unit s hav e bee nteste dwit hFiberglas s Duc t Fan s i nplac e unde r

AMC A Bulleti n21 0 con dition s an dhav e ver y accurat e ratings

. I f guid e van e sectio ni s use do nfa ndischarge , 15 % t o 207 c mor e S Pexterna l ca nb e secured

. Curve s ar e availabl e fro mfactory

. Caution Th e Hartzel l Fiberglas s Fum e Scrubbe r i s designe dfo r

fum e remova l onl y an dshoul d neve r b e use da s adus t

collector—i t

wil l plug

. Th e uni t i s chemicall y resi.stan t t o mos t industria l acids , bu t

shoul dno t

b e use dwit h ove r 3 % t o 5%hydrofluoric

. Eve nthi s lo w concentratio nof

hydrofluori c require s a nex tr acoa t o f resi ninsid e o nbot h.scrubbe r an d fan

. No t suitabl e fo r

us e wit htemperature s ove r 15 0 F

. Analysi s of

fum e condition s mus t b e sup plie dHartzel l fo r

evaluatio nan dapplication

. Notes Uni t ca nb e u.se

dwithou t

fiberglass elbo w if horizonta l discharg e i s desired

. Fu nwil l bol t direc t t o unit

. Scrubbe r

bod y an dai r

flow mus t b e horizontal

. Scrubbe r canno t b e arrange d fo r vertica l ai r

flow.

Hartzel l '"•-'-•'-•eHer Fa n Comoanv . Piqua , Ohi o 4535 6 •Plant s i n Piqua , Ohio ; Portlrnd , Indiana ; an d Aberdeen . Mississippi . 

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