Attachment 1 

Fort Martin Overall Plant Water Balance Diagram 
 3/31/2009 8:37:24 AM
Attachment 2 

Fort Martin FGD System Process Flow Diagram 
r TOTAL MAKE-UP

(,iS WATER TO FGO SYSTEM

ALLEGHENY ENERGY FORT MARTIN UNIT 1 - 6.77 LB S02/MMBTU DESIGN MASS BALANCE

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MILL PRODUCT M1LL ^Jproduct LIMESTONE SLURRY

FEED TANK

RECLAIM WATER

PUMPS

RECLAIM WATER

TANK

PRIMARY HYDROCLONE

OVERFLOW TO SECONDARY

HYDROCLONE

&_

& PCD SYSTEM

PURGE STREAM

SECONDARY

HYDROCLONE

n*€7 SECONDARY

HYDROCLONE

FEED PUMPS

V

PRIMARY HYDROCLONE

OVERFLOW TO RECLAIM

WATER TANK

<8> SECONDARY

HYDROCLONE

UNDERFLOW

FileName Fort Martin Unit 1with Secondsr* ids 1

ProjectName Allegheny Power• Fort Martin Station -Unit 1

ProjectNumber Base Case- Design Sulfur- 6.67b/mmBtu

Run U Contract Mass Balance RO

Revision 0

Size 552 MW

Status version 6d

EvaluationCoal-See Note 1

Component % of weight

Moisture 7.00

Carbon 69.12

Hydrogen 4.44

Nitrogen 1.29

Sulfur 4.05

Ash 8.59

Oxygen 5.38

Chlorine 0.15

Fluorine 0.00

Higer Heating

Value(Blu/fe) 12,000

Evaluation Limestone

Avail.CaC03 90%

MgC03 3.5%

Inerts 6.5%

BWI 11.5

Size J/."x0"

Note 1- Mass Balance Based onGas Compositions Given in 'Design Basis Fort Martin Unit 12005-07-01 .xls"

Gas Stream ID- A

Absorber

Inlet

B

Absorber

Outlet

C

Oxidation

Air

Item Unite

Total Flow (Wet) acfm 2,000,060 1,707,010 11,383

Total Flow(Wet) scfm 1,249.066 1,393,599 17,874

Temp F 329 131 300

Total Flow(Wet) Ib/hr 6,156,222 6,607,823 85,692

C02 Ib/hr 1,102,982 1.127,010 0

H20 Ib/hr 280,938 667,718 731

S02 Ib/hr 34.924 698 0

N2 Ib/hr 4,368,806 4,434,022 65,216

02 Ib/hr 366,879 378,102 19,745

HCI Ib/hr 656 0 0

HF Ib/hr 0 0 0

S03 Ib/hr 437 219 0

Ash Ib/hr 600 54 0

S02 ppmdv 2,824 56 0

HCI ppmdv 93 0 0

HF ppmdv 0 0 0

S03 ppmdv 28 14 0

Liquid StreamID -» 1

Limestone

Feed

ToFGD

System

2

limestone

Slurry

Feed to

Absorber

3

Absorber

Bleed

Stream

4

Primary

Hydroclone

Overflow

5

Primary

Hydroclone

Underflow

6

Vacuum

Fitter

Gypsum

Cake

7

Vacuum

Beit Filter

Filtrate

8

Reclaim

Water to

Absorber

9

Primary

Hydroclone

Overflow

to Reclaim

804

10

Primary

Hydroclone

Overflow

to Secondary

11

FGD

System

Purge

12

Secondary

Hydroclone

Underflow

13

Total

Make-Up

Water to

FGDSystem

14

Make-Up

Water to

Ball

Mill

15

Vacuum

Filter

WashiLube

Water

60

16

Make-Up

Water

to

Reclaim

121

17

Make-Up

Water

to Ox Air

Humtdrflcatlon

18

Mist

Eliminator

Wash

Water

It

Mist

Eliminator

Wash

Make-Up

179

20

Cooling

Loads

61

21

Vacuum

Pump

Seal

Water

112

Item Unit

Flow gpm 31tph 373 1,161 912 249 55.2tph 315 1321 108 88 20 930 326 7 240

TF Ib/hr 62.501 223,216 660,638 478,150 182.488 110.482 129,384 681,470 421.649 56,501 44.829 11,671 458,720 160.716 500 118.786 3,398 118,462 88,462 30.000 55239

Solids % 100 28 20 6 56 90 3 5 6 6 2 24 0 0 0.0 0.0 0 0 0.0 0.0 0.0

Moisture % 0 72 80 94 44 10 97 95 94 94 98 77 100 100 1000 1000 100 100 100.0 100.0 100.0

TSS Ib/hr 62,501 62,501 132,128 30,664 101,463 99,434 2,029 31813 27,041 3,624 881 2,743 0 0 0 0 0 0 0 0 0

FW Ib/hr 0 160,716 528.510 447,486 81,025 11,048 127,354 649,657 394.609 52,877 43,949 8.929 458,720 160,716 500.0 88.766 3.398 118,462 88462 30.000.0 55.239.0

CaSO4*2H20 Ib/hr 0 0 109,372 16,406 92,966 91,107 1.859 17877 14.467 1,939 368 1,551 0 0 0 0 0 0 0 0 0

CaSO3*(1/2)H20 Ib/hr 0 0 453 249 204 200 4 247 220 29 6 24 0 0 0 0 0 0 0 0 0

CaC03 Ib/hr 56,250 56.250 4.498 1,574 2.924 2,865 59 1.596 1.388 186 37 149 0 0 0 0 0 0 0 0 0

MgS04 fc/hr 0 0 21 12 10 1 0 12 10 1 0 1 0 0 0 0 0 0 0 0 0

MqC03 Ib/hr 2,188 2,188 2,409 1,325 1,084 1,062 22 1315 1,169 157 31 125 0 0 0 0 0 0 0 0 0

Inerts Ib/hr 4,063 4,063 13,082 9,157 3,925 3,846 79 9,020 8,075 1,082 216 866 0 0 0 0 0 0 0 0 0

Ash fc/hr 0 0 2,293 1,941 352 345 7 1,747 1,712 229 202 28 0 0 0 0 0 0 0 0 0

MgF2 Ib/hr 0 0 0 C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

a 0 0 12.000 12,000 12.000 1,000 12,034 8,780 12.000 12,000 12,000 12.000 0 0 0 0 0 0 0 0 0

SG Slurry 2.70 1.20 1.10 1.00 1.50 2.00 1.00 1.00 1.00 1.00 1.00 1.20 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00

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Attachment 3 

Fort Martin FGD Wastewater Treatment System Process Flow Diagram