### ,.



### TOTAL FLUORIDE EMISSIONS TESTING

ON THE KILN EXHAUST (S-1)

AT ROCKY RIDGE, MARYLAND



## BORAL BRICKS

P. 0. Box 1178

COLUMBUS, GEORGIA 31902-1178

(334) 480-2487

August 18, 1998

REPORT# 6015 

# /

ANALYTICAL TESTING CONSULTANTS, INC.

30 I Brookdale Street

Kannapolis, N. C. 28083

(704) 932-3193

Distribution:

Mr. David Johnson

(Five copies)

Issue Date:

August 21, 1998

## INTRODUCTION

This report presents the results of total fluoride emissions testing on the kiln 

### exhaust at the Boral

Brick facility in Rocky Ridge, Maryland. Testing was conducted on Wednesday and Thursday,

August 5 and 6, 1998.

Testing was conducted by ANALYTICAL TESTING CONSULT ANTS, INC. of Kannapolis,

NC. Members of the test team were Stewart Meadows, project leader and Michael Hazeltine.



## CERTIFICATION OF RESULTS

"By our signature we certify that the testing and the reponing of the test results contained herein are prepared to the best of our abilities and that, to our knowledge. the data have been calculated and reported

correctly. No data or information has knowingly been omitted."



### Dan McCombs

Test Report Preparation

I 

# S

**~ ~.JGv.=(wr_..,)** 

Stewart Meadows

Test Team Leaderltg'ouolprpdr(19l00din)Bl·I'IO,Ibonllll.odd50001·2(17lDclin)83·MiltopylMadtlSIOI'RSilo81clln)114·MiltopylModel510I'RSI.Io221(144!0din)Bl·MD<r.,ulMadillSIO'IllSIJo144(fnliilooxlwlllml)')B!•Aaoyul..Modtl(rqis!rlli0<1160135)BaghouscExhaust•.,..uorat.Br1c.K.s..<.ocKyR10gec1an..ProcessFlowDiagramandAirEmissionsDiagramPrimaryCrusherlJClayStorageShedIBaghouscExhaustLegend:Bagbouse=-..Clay/BrickProcessLine.........!>OutsideAirEmissionsWasteHeatftomK.iln...1-.·---------···+AirExhaustDuctllntemalExhaust*-tScreenDankslnclaGrinderShale«\I,....AAAAAA.. ....IIII. .••........ .......... ... ..I'fII....Pre--DryerVents.. ..SoftMudPrc-Dzyer••..S3i!+---:SandPreparation1Storage' n.\Tank'tnMansao=Feeders:Hand·JlTC6SIIomissionsPug/Sand:ShapesMoldBrickh!I:'1Machine......................••••••••••••••••••'••••••••••\PugMUINooutside(usedforhandpressedsbopes)S2:••J/'/,....BaghOU$Cllxhaust1PugMill/Extruded/L..__BrickMachine,........-····..........,.../I,/..1-1__.._,1),.....r+-·--·-WasteHeat·-·-..L··-------·-..DrycriKiln:Sl.•••IManufacturingBuildingj1!PackagingUneVD:w.tRxhausrKilnExhaust___,.'•••lc\•l,

## RESULTS, CONCLUSIONS AND COMMENTS

A summary of some pertinent results appear in the preceding RESULTS SUMMARY. For

additional information please consult the CALCULATIONS and DATA SHEETS sections of

this report.

Brick Kiln Stack Exhaust

The mean velocity was detennined to be 43.20 per second (ftfs) through the 29.5" round exhaust

stack. This yielded a mean actual volumetric flowrate of 12,302 cubic feet per minute (ACFM).

The standard flowrate was calculated by applying corrections for: I) barometric pressure- 30.14"

Hg (day 1), 30.19" Hg (day 2), 2) static pressure of the stack (-0.42" Hp), 3) moisture content of

each individual run- AVG.=5.82%, and 4) the corresponding stack temperature- AVG.=324.! 0



### Fahrenheit. The corresponding mean standard volumetric flowrate was 7,916 SCFM.

Total Flouride emissions averaged 0.382 pounds per hour or 12,886 ug!M 3

• 

### Production data

provided by the plant showed the kiln process rate to be 4.54 tons per hour. This yields an

emission rate of 0.084 pounds of Flouride per ton of bricks processed.



## 5