p. 1


# OAR Box 1313 Prepped by LaTeia Shed



### Document

Number: 

# 42 ) ll-B-1 6 Docket Number: 

# A-88-0 2

Printed 6/12/20089:03:29AM

Sheet 42 of 99$
.-<•'''
-



### Date : Decembe r 9 , 198 6

(Finalize dFebruar y

19 , 1987 ) pj>
_ 

## A-88-0 2 MIDWES TRESEARC H INSTIT U

450 5 Creedmoo r R

c •\ Raleigh , N. C 27 6 \ Telephon e (919

) 781-5 '

.-< • \ V*\ ^ \ \

Subject : Sit e V1s1t~KC H Services , Inc .

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 : Robi nBarke r To : 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 mis t eliminator s manufacture db y KC H Services , Inc. , fo r controllin g emission s o f chromi c aci dmis t fro m chromiu m electroplatin g baths . II . Plac e an

d Dat e KC H Services , Inc . Pos t Offic e Box128 7 Fores t City, Nort hCarolin a 2804 3 (704 ) 245-983 6 Novembe r 10 , 198 6 III . Attendee s KC H Services , Inc . Ke nHankinson , President/Genera l Manage r U . S . Environmenta l Protectio nAgenc y Al Vervaert , IS B Midwes t Researc hInstitut e Robi nBarke r Randy Strai t

/ •P. 3

IV . Discussio n Th e visi t bega na t 9:3 0 a.m . wit ha discussio nabou t th e basi c desig no f KCH' s mis t eliminators . Thi s wa s followe db y a tou r o f th e plant . A . Genera l KC H Services , Inc. , (KCH ) manufacture s Industria l ventilatio nan d ai r pollutio ncontro l systems . Th e system s typicall y ar e mad e o f polyviny l chlorid e (PVC) , polypropylene , o r othe r corrosion-resistan t materials . KC H manufacture s bot hpacked-be dscrubber s an dmis t eliminator s fo r controllin g chromi c ad dmist . KC H recommend s th e us e o f packed-be d scrubber s rathe r tha nmis t eliminator s fo r controllin g chromi c aci dmis t fro m electroplatin g tank s becaus e scrubber s achiev e highe r remova l efficiencie s an

dar e easie r t o maintain . However , mis t eliminator s ar e purchase db

y smal l har dchromiu

m platin g jo bshop s becaus e the y ca nb e purchase dfo r abou t one-thir dth e cos t o f scrubbers . Informatio n brochure s fo r KC H mis t eliminator s an dscrubber s ar e presente d1nth e attachmen t t o thi s report . B . Contro l Devic e Informatio n 1 . Chevron-blad e mis t eliminators . Chevron-blad e mis t eliminator s rel y o nimpingemen t a s th e principa l mechanis m fo r th e contro l o f chromi c aci dmist . Th e mis t eliminato r i s installe di na horizonta l sectio no f duct , an dth e contaminate dexhaus t ga s i s draw nthroug hth e blade s b y an Induced-draf t fan . Thes e blade s caus e th e directio no f th e ga s flow t o chang e fou r time s a t 30-degre e angles , whic hcause s chromi c ad dmis t t o imping e o nth e blades . Ther e ar e tw

o type s o f chevron-blad e designs : wave-typ e an dangula r o r overlapping-type . A schemati c o f th e wave-typ e an doverlapping-typ e design s i s presente dinFigure s 1 an d2 , respectively . Wave-typ e blade s typicall y

ar e 30.4 8 centimeter s (cm ) (1 2 Inche s [in.] ) indepth , an d overlapping-typ e blade s typicall y ar e 20.3 2 c

m ( 8 in. ) i ndepth . Th e cente r spacin g betwee nbot htype s o f blade s i s abou t 3.1 8 c m (1.2 5 in. ) fo r bot hblad e designs . A t KC H desig nga s velocities , th e wave-typ e desig noperate s a t a pressur e dro po f abou t 0.0 6 kP a (0.2 5 1n . w.c. ) o f wate r les s tha nth e overlappin g typ e design . KC H currentl y

use s th e wave-typ e design . Mr . Hankinso nstate dtha t ga s velocitie s above desig ncoul dresul t i nreentrainmen t o f th e chromi c aci di nth e ai r stream , an dga s velocitie s belo w desig ncoul dreduc e th e impingemen t o f the chromi c aci do nth e blades . M1s t eliminator s ca nbe equippe dwit heithe r a singl e o r a doubl e se t o f blades . KCH typicall y supplie s mis t eliminator s wit honl y on e se t o f blade s bu t wil l Instal l a nadditiona l se t 1 f chromi c ad dmis t break s throughth e singl e set . Al l KC H mis t eliminato r housing s ar e manufacture d

5LFigur e 1
. Wave-typ e blad e design
.

( * T l J* .Figur e 2
. Overlapping-typ e blad e design ,

^ T l inP. 6

s o tha t a secondse t o f blade s ca nb e installe di f necessary . Mr . Hankinso nestimate s tha t th e additio no f a secondse t o f blade s add s fro m 2 0 t o 3 0 percen t t o th e purchas e pric e o f th e unit . Th e mis t eliminator s manufacture db y KC H ar e equippe dwit ha spra y washdow nsystem

t o clea nth e blades . KC H recommend s washin g dow nth e mis t eliminato r onc e pe r da y t o preven t buildu po f chromi c ad ddroplet s o nth e blades . Chromi c ad ddroplet s wil l brea k throug hth e mis t eliminato r 1 f th e blade s ar e no t washe ddow nfrequently . 2 . Packed-be dscrubbers . KC H manufacture s singl e an ddoubl e packed-be dscrubber s fo r controllin g chromi c ad dmist . Th e packed-bed s ar e 30. 5 cm

(1 2 1n ) 1 ndept han dcontai nloos e propropylen e ballas t saddles . C . Tes t Dat a an

dCandidat e Plant s Th e dat a fro

m th e EPA

tes t program

show tha t a mis t eliminato r wit h a doubl e se t o f overlapping-typ e blade s outperform s a mis t eliminato r wit h a singl e se t o f wave-typ e blades . Mr . Hankinso nstate dtha t h e believe s th e differenc e 1 nperformanc e wa s du e t o th e redundanc y o f two set s o f blade s rathe r tha nth e blad e design . KC H recentl y

Installe da mis t eliminato r wit ha singl e se t o f wave typ e blade s o na hardchromiu m electroplatin g operatio na t Unite dMeta l Finisher s 1 nGreensboro , Nort hCarolina . KC H ha s agree dt o contac t Unite d Meta l Finisher s abou t possibl e EPA testing . KC H i s willin g t o retrofi t thi s uni t wit ha doubl e se t o f wave-typ e blade s an dals o wit ha singl e se t o f overlapping-typ e blade s t o obtai ndat a tha t coul db e use dt o evaluat e whethe r th e performanc e o f mis t eliminator s 1 s affecte db y th e blad e desig no r th e redundanc y provide db

y a nadditiona l se t o f blades .



### S

### Attachmen t P. 7

(



## Innovators o f corrosio n resistan tventi latio n equipmen tan

d relate d item s to compl y wit

h you rpollutio n control needs . Specia l design , spac e efficiency , an d greatflexibilit

y i n yourpollutio n contro l system : W

e provid e it .

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. USER

PURC H

- JOftNO . 

## KC HMIS T ELIMIPIATO R

KC H Services . In c —F-ores tCity , N. C

. DATE CF M * .



# fc.im-mu i IIAI 1 

# i minim :

UIMOTI , Th

e KC H Chemica

l Mis tEUmiiuto

rwa s developed fo

rus e o n moisture-Ude

n fames containing dissolved chemicals . Contamtnan tremova l take s place whe

n th e fames pass throug

h th e PV C eliminatorMattes

. These blades change th e ai rdirection re

sulting bf entrapmen

tofth e contaminant

s o n th e blades . A spra

y was h dow n syste m allow s cleaning of

th e Modes. These unit

s ar e designed forinstaUatio

n f n horizonta

l m n o f duc t

mat

( T

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MMUM U I N NI U MO

* 

## KC H MIS TELIMINATO R MKHIHWNKI B e m mr * HU E A •nt v mtiT i
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i t i t « M I M 1 Vt 1 3 •:•»• • 1 4 I T 28 M I M I w i s 8 1 n a ai % I M i Vt i i i 2 4 2 7 UVt I 1 % n 4 2 1 1 1 3t M 2 1 M 2 2 3 3 2 S f 43M 2 . 2 Vt 2 4 • 3 8 U 43M 2 2 Vr nvt • 4 9 4 3 91 M 2 2 Vt 2 1 I t 4 t 4 t ft M 3 2 % 3t M 1 2 M 9 3 M M 3 3 Vt 3 3 1 4 M 5 7 M M 3 t tt N I f 5 7 M M M 3 3 tt 3ft t I t M M 71 M 3 3 tt U 2 t M
• 7 75V , 3 4 tt 4 t 2 2 9 7 7 9 7IV r 3 4 tt 41 M 2 4 7 1 7 3 t m 4 4 tt 4 3 2 t 7 3 7 t M M 4 4 tt 44 M 2 t 7 1 7 9 t7 M 4 8 tt 4 9 M 7 1 f l M M 4 9 tt 4 7 M M 1 7 N M 4 9 tt M 4 9 M N M M 4 t tt U a M
• 7 M M 4 f tt M M I M I M HI M 4 f tt M

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### v 55^5^5^5?55-^,-55<5<Y. '-.•••'•'. '



# H200 D

• DESCRIPTION / •• .,./../.. , ; 7 

### H-20Q-Horizontal

Flom Fume: Scrubber. ThisYfourstage scrubberis one of the most

populardesigns available^ This versatile; crossflow scrubberis used

to remove corrosive ornoxious fumes'with high efficiency. It

may be installed

with a remote recirculation system for'sub^\ zero climates* Hr2QQB*HYorizonial* Flow Fume. SCrUbber. This six stage unit can be utilized tx> ensure maximum scrubbing efficiency on low soluble . fumes. Hard

to remove fumes such as Nitric.,- Hydrofluoric, andHydrochloric acids are more efficiently scrubbed with this unit.. 

# 1

• SCRUBBER OPERA TION The removal

of contaminants is accompUshed by first slowing-the fumes to a velocity below BOO fpm and then passing tne fumes through either fourorsix stagesof

scrubbing. The fumes pass first througha water spray during: which some of the largercontaminant particles drop out

and the remaining fumes are saturated.'The secondstage conaiata of a 12" deeppackofpolypropylene, nonclogging, sphericaltypemasa packing which ia kept

constantly wet

by a continuous spray. The saturated fumea ore impinged

upon the pachingond

the contaminants are absorbed and carried away in the wash water. Thia scrubbing action is repeated ih the six-stage unit. Afterpassing through the scrubbing stages the airis mist laden and

must then pass through the two atage gravity mist

eliminatoraection. Thia conaiat*ofa drop out area that

removes all

but the finest

mist, then, a series of vertically mounted

PVC eliminatorblades provide four$9° changes in direction ahd efficiently eliminates entrained

water. 8-'• •• Single pack scrubbers have a static pressure drop of 2" and double pitch models-have a static pressure drop of3".. • )•.. . •* . \

/ •P.1 0



### tOMNWdn Scrubber/combination. frThe true economizerin both space tund price, and

available in both i single and

double pack units* The \ outlet can be rotated

360° during installation before being bolted in a fixed position. This vertical

flow unit also offers an excellent efficiency equal to the H-200. PT-5aO~Packed 5TowerFume Scrubber. One of

the first designs in fume scrubbers, this efficient;^ unit allows the use of

a stach fan ora centrifuged

design fan. If

restricted[. floorspace is the problem* thePt?600 often solves it.

; . These scrubbers may be supplied with watereither

directly from yoursupply orfrom an integral orremote 'recirculation system supplied with the scrubber. It

is generally recommended that a recirculation system be used to conserve waterexcept on very low cfm units. The actual fresh waterconsumption varies from. j2 n f y .10 to .30 gpm/1000 cfm depending on the contaminant involved. This represents 6% of the water weing recirculated. Jfcoldconditions exist a remote recirculation syatemshould be specified

forplacement fn a heated

area. KCH

Scrubbers come complete with fittings forthe additidn of chemicat neutralizers if required. A complete metering and pumping system is also available upon request. Q> er y KCH Scrubberis shipped

complete with an integral coated steel base. No special

mounting is fequired. Simply connect the duct, the waterand poweraupply, and

the unit

is ready foroperation. alete instaUation and

operating inatructiona are supplied with all KCH Scrubbers. \

• a• | l ' . . . " . . . ' | . . i « with till

otherKCH

Products, low maintenance ia a majorfactorin burscrubbers. Low maintenance ^mponents are used

throughout

and the unit

is complete with quick opening access doors foreasy 'apection, •"•••}.••-".'••. .p.1 1 

### APPLICATIONS H200 Acid Fumes Plating Fumes Cleaning Fumes Lab Fumes Anodizing Fumes H200D OMNI OMNI D PT500 PT500D

Pickling Fumes Rust-Proofing Fumes Die-Casting Fumes Stripping Fumes Etching Fumes Bright Dip Fumes

•ADVANTAGES

Low cost. High efficiency on soluble fumes. High efficiency on low soluble fumes with addition of

chemical neutralizers. Low maintenance. Low water

consumption. Low static pressure drop. 100%corrosion resistant •ADVANTAGES Lowest overall purchase and

installation cost. High efficiency on soluble fumes. High efficiency on low soluble fumes with addition of

chemical

neutralizers. Low maintenance: Low waterconsumption. Low static pressure drop. 100% corrosion resistant.

•ADVANTAGES Highest efficiency on all

fumes. Moderately priced. Low maintenance. Low water

consumption. Low static pressure drop. 100%corrosion resistant. •ADVANTAGES Low cost. High efficiency on soluble fumes. High efficiency on low soluble fumes with addition of

chemical neutralizers. Low maintenance. Low water

consumption. Low static pressure drop. 100%corrosion resistant.

spra y boot hshield s

P. O BO X 128 7 •FORES

TCITY . N C 2804 3 •PHON E (704 ) 245-983 6 © KCH , 198 2 

## /o

### KC H FUM E SCRUBBER S Averag e Remova l Efficiencie s P.1 2



### MODE L •
CONTAMINANT

S Aceti c Aci d CH^COO H Alkalin e Cleaner s Aluminu m Brigh t Dip * Amine s Anodizin g Aqu a Regi a Bori c Aci d Causti c Cleaner s Causti c Sod a Chlorin e Chromi c Aci d Platin g Coppe r Chlorid e Cyanid e Platin g Solution s Ferri c Chlorid e Ferri c Nitrat e Ferrou s Chlorid e Ferrou s Sulfat e Fluosilici c Aci d Hydrochlori c Aci d Hydrocyani c Aci d Hydrofluori c Aci d Hydrofluosilici c Hydroge n Peroxid e Hydroge n Sulfid e Mercaptan s Nicke l Chlorid e Nicke l Sulfat e Nitri c Aci d Nitroge n Dioxid e Nitric-Hydrofluori c Aci d Perchlori c Aci d Phosphat e Sal t Bat h Phosphori c Aci d Potassiu m Dichromat e Selenui m Sulfid e Sodiu m Chlorid e Sodiu m Fluorid e Sodiu m Glutenat e Sodiu m Hydroxid e Sulfu r Dioxid e Sulfuri c Aci d Pickl e Ti n Chloride s Zin c Chlorid e Zin c Nitrat e Zin c Sulfat e 

### Fou r STAG E H-20 0 PT-50 0 OMN I % 95-9 9 95-9 9 80-8 5 90-9 7 96-9 9 75-8 0 85-9 5 98-9 9 98-9 9 80-8 5 98-9 9 75-8 0 97-9 9 80-8 5 95-9 8 90-9 5 94-9 7 95-9 8 80-8 5 85-9 5 85-9 5 94-9 8 85-9 5 70-7 5 80-8 5 80-8 5 80-8 5 75-8 5 45-5 0 72-8 0 85-9 5 96-9 9 96-9 9 95-9 8 95-9 8 95-9 8 90-9 5 95-9 8 98-9 9 70-7 5 96-9 8 75-8 0 75-8 0 95-9 8 95-9 8 

### Si x

STAG E H-200 D PT-500 D OMNI- D % 98-9 9 98-9 9 85-9 0 97-9 9 98-9 9 80-8 5 97-9 9 9 9 9 9 85-9 0 9 9 80-8 5 9 9 85-8 8 98-9 9 95-9 8 96-9 8 98-9 9 85-9 0 98-9 9 97-9 9 98-9 9 97-9 9 75-8 0 85-9 0 85-9 0 85-9 0 85-9 0 50-6 0 85-9 0 97-9 9 98-9 9 98-9 9 98-9 9 98-9 9 95-9 9 95-9 8 95-9 9 9 9 75-8 0 9 9 81-8 5 80-8 5 98-9 9 98-9 9 

### Fou r

STAG E Si x

STAG E Wit h Chemica l Neutralize r (p H Control ) %

80-8 5
85-9 0 85-9 0

90-9 5

85-9 0 90-9 5 90-9 5 90-9 5 65-7 0

80-8 5 85-9 0 %

85-9 0
90-9 5 90-9 5

95-9 9

95-9 8 95-9 8 95-9 8 95-9 8 70-7 5

85-9 0 90-9 5

"Thaa a afftciancia a ar a fo r th a combina d nHr k an d phoaphort c fuma . Th a afficianc y fo r th a NO 2 portio n o f th a fum a ont y wtl l b a liata d abova . •Th a abov a afftciancia a ar a intando d a a rapraaantin g avarao a vatuaa . Spacifl c combtnation a an d concantratton a o f fuma a ma y raautt t n a atgtnWcan t -atrtatto n fro m tn a Th«rafor a n o guarantaa a ar a tmptiad . / /P.1 3 

# FUME , SCRUBBE R MAINTENANC E

PI.mtn ? • Fflitnem.icMM J . TM-MS-M U 

### SCRUBBERS , INSTALLATION , OPERATION , AN D MAINTENANC E INSTRUCTION S 1 . AI R FLO

W Unit s ar e normall ydesigne d t o b e o n the suctio n sid e o f th e fan . Ai r flow through unit s mus t be i n the directio n indicated . To o larg e a de

viatio n fro

mthe designe d CFM wil l affec t the efficienc yo f the scrubbe r 2 . SUPPORTIN

G TH E UNI T Th e scrubbe r rest s o n a stee l channe l bas e making the uni t self-support

ing . Thi s stee l bas e ma yb e suspende d fro

moverhea d structur e o r res t on an ymedi a suitabl e t o suppor t th e unit s weight . 3 . CONNECTIO

NTO VENTILATIO

NDUC T T o eliminat e the possibilit yo f wate r running dow n the duct , ther e - shoul d be a minimu

m Aft . o f horizonta l duc t befor e the scrubbe r tran
sition . Thi s shoul d be slope d slightl ytoward s th e botto mo f the scrub

ber . Th e flange s shoul d b e fiel d drille d on approximatel yV-5 " center s Asof t foa

mtyp e chemicall ycompatibl e gaske t materia l i s recommende d betwee n the scrubbe r flang e an d th e duc t flange . 4 . ELECTRICA

L CONNECTIO

N Prope r electrica l connectio n complying wit h loca l code s shoul d b e mad e t o the pum

p motor . 5 . UNIT S WIT H INTERNA L RECIRCULATIO

NSYSTE M Thes e unit s shoul d b e installe d in heate d area s o r protecte d fro mfreez

ing . Fres h wate r suppl ylin e i s connecte d directl yt o the stree t elbow o f the flowmeter , i f on e i s provided . I t shoul d b e vaive d t o continu

ousl yprovid e a maximu mo f 5 % o f th

e recirculatio n rat e a s show n on the sid e o f the scrubber . Th e scrubbe r drai n i s connecte d t o customer' s wast e drai n line . I f thi s lin e mus t g o t o a sump , i t mus t b e submerge d 6"-8 " belo w the lowes t expecte d liqui d level , o r a plumber' s "P " tra p shoul d b

e installed . Thi s wil l preven t ai r fro minterfering wit h th e operatio n o f the scrubbe r an d it s overflow . Befor e Start-up , shu t th e wast e drai n an

d fil l t o the overflo w thru the flowmeter , i f supplied . Additiona l wate r ca n b e introduce d thru'th e inspectio n doors . Whe n wa te r leve l reache s overflo w level , operatio n o f pum p an d fa n ma ybegin . 6 . UNIT S DESIGNE D WIT H REMOT E RECIRCULATIO NTAN K AN D PUMP Arecirculatio n tan k i s require d an

d shoul d hav e a

n adequatel ysized overflo w an

d wast e drain . Thi s tan k wil l allo w a self-drainin g scrub

be r t o be place d outside . Th e scrubbe r mus t b e elevate d fo r eas ydrai n retur n t o th e recirculatio n tank . Th e scrubbe r drai n pip e mus t b e sub

merge d 6"-8 " belo w the lowes t expecte d liqui d leve l i n the tan k an d o n th e opposit e sid e fro mthe pump . Th e pip e en d shoul d be cu t on a 60 ° angl e wit h the lon

g opening facin

g the tank s side . Fo r informatio n on start-u p an d make-u

p water , pleas e se e Sectio n 5 above .

Form SI- 1 198 1 O copy-rlghU d

- Continue d O n Nex tPag e - / 2P. M

*«£.:•••••' ' ij^pr:.-^^--. - ; .-^. K Ki f • r5 H aaiit '



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# INSTALLATION AND SERVIC E NATIONWID E Afte rth e syste m has been designe d an

d manufac tured , ou rexpert s wil

l guid e ever

y par tinto place . KC H provide s engineering , installation , an d technica l service nationwide . Onc e th e nature , of th e proble m ha s bee n outlined , ou r engineer s begi n o n th e physica l problems : space , locations , an d energ y demands . Final l y th e KC H syste m ideal foryou rsituatio n wil l b e designed , manufactured , shipped , assembled , an d installe d b y KCH' s ow n peo ple . TECHNICA L SERVIC E AFTE RSTART-CI P IF YO Q NEE D CONTINUIN G TECHNICA L AN D MECHANICA L ASSISTANCE , PREVENTIV E MAINTENANC E INSPECTIONS ,

SPAR E PART S .. . W E PROVID E IT. Centrifuga l fan s Fum e washer s Hood s Duct Fitting s Mis t eliminator s Moistur e extractor s Stac k cap s Tank s an dtan k liner s an dal l type s of

specia l fabrication s suc ha s . . . material s handlin g duc t platin g rack s an dbasket s electrica l insulator s protectiv e wal l covering s curren t block s tan k guard s grille s cleaning/platin g console s semi-enclose dla b ventilatio n console s abrasion-resistan t

shield s spra y boot hshield s Machine dpart s stoc k items : PV C sheet , rod
. pipe
. nuts , bolt s an dfitting s Polypropylen e Polyethylen e Odo r contro l system s

P.O . BO X 128 7 • FORES

T CITT . M.C. 2M4 3 • 704/245-M M KCH , 198 2 

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