FOUNDED IN 1928 – 87 YEARS OLD

EMPLOYEE-OWNED

CORPORATE OFFICES – BARTLETT, ILLINOISSALES

ENGINEERING

SERVICE

PARTS

FABRICATION – CHARITON, IOWAJOHNSON MACHINE WORKS – 1940

AISC CATEGORY 1 CERTIFIED – HIGHEST RATING

CONTROLS – ELGIN, ILLINOISCONTROLLINK

UL & cUL CERTIFIED SHOP

REPRESENTATIVE – PROMAG ENVIRO SYSTEMS, LTD.

KEN MAGAW

SCREENING

GRIT REMOVAL

SPIRAFLO CLARIFIERS

CLOSED LOOP REACTOR (CLR) PROCESS

LESS PIPING BLOCKAGES

REDUCED PUMP MAINTENANCE

IMPROVED CLARIFIER SETTLING

REDUCED CLARIFIER SCUM FORMATION

LESS CLARIFIER FEEDWELL CLEANING

LESS CLEANING OF CLARIFIER WEIRS

REDUCED AIR DIFFUSER MAINTENANCE

LESS FREQUENT DIGESTER CLEANING

IMPROVED DIGESTER OPERATION

REDUCED SLUDGE DEWATERING MAINTENANCE

CLEANER WASTE SLUDGE – NO IDENTIFIABLES

DESIGN BASED UPON PEAK FLOWCOMBINES THREE (3) UNIT PROCESSES:

SCREEN OPENINGS – 13 mm AND SMALLER MATERIAL6 mm STANDARD OPENING

WASHES SCREENINGS TO REMOVE FECAL MATERIAL2-STAGE WASHING SYSTEMNO VISIBLE FECAL MATERIAL

COMPACTS AND DEWATERS SCREENINGS40 TO 50% DRY SOLIDSREDUCES VOLUME BY 50%REDUCES WEIGHT BY 67%SAVES CONSIDERABLE DISPOSAL COSTSMORE ENVIRONMENTALLY FRIENDLY

FECAL MATERIAL

NO FECAL MATERIAL

ALL STAINLESS STEEL CONSTRUCTION

LOW POWER – 1.5, 2.2, OR 3.7 kW DRIVE

SIMPLE MECHANICAL DESIGN

ONE MOTORIZED MOVING PART

ENCLOSED DESIGN FOR ODOR CONTROL

PIVOTS OUT OF CHANNEL FOR SERVICE

SCREEN TYPICALLY OPERATES 400-600 HR/YR

LOW MAINTENANCE COSTS

SCREEN BASKET

SEAL PLATERAKE & COMB

TRANSPORT

SCREW

1.5, 2.2, OR

3.7 kW DRIVE

COMPACTION

ZONE

WASH SYSTEM

MANIFOLD

COMPACTION FLUSH

SCREENINGS

WASHLOWER

WASH

BAR SPACINGS – 6 mm, 10 mm, and 13 mm6 mm – STANDARDNINE (9) SCREEN SIZES:

24 INCH – 610 mm31 INCH – 787 mm35 INCH – 889 mm40 INCH – 1,016 mm47 INCH – 1,194 mm55 INCH – 1,397 mm63 INCH – 1,600 mm71 INCH – 1,803 mm79 INCH – 2,007 mm

8.3 MLD TO 103.8 MLD PEAK FLOWS

3-PLANE

BAR RACK

RAKESCREENINGS

STORAGE

3-PLANE

BAR RACK

RAKE

SCREW

COMB

LOWER WASH

CYCLOIDAL DRIVE DEVELOPED IN GERMANY

FOR TANKS AND U-BOATS DURING WWII

DRIVE TYPESCYCLOIDAL-HELICAL – IN-LINE

CYCLOIDAL-BEVEL – RIGHT-ANGLE SAVES HEIGHT/LENGTH

ALWAYS HAS 40% OF GEARS-ROLLERS

ENGAGED FOR 500% SHOCK LOADING

CAPABILITY

MEMBER OF AMERICAN GEAR

MANUFACTURERS ASSOCIATION (AGMA)

TORQUE RATINGS OF 1,774 TO 7,228 N-m

THRUST RATINGS OF 25,800 TO 75,520 N

TAPER GRIP BUSHING TO CONNECT REDUCER

TO SCREW CONVEYOR DRIVE SHAFT

STANDARD NEMA C-FACE STANDARD MOTOR

CAN USE ANY OTHER NEMA C-FACE MOTOR

MANUFACTURER

CYCLOIDAL-HELICAL

SPEED REDUCER

CAN TAKE 500%

SHOCK LOAD

WITHOUT DAMAGE

1.5, 2.2, OR 3.7 kW

NEMA

C-FACE

MOTOR

GAR-MAX®

CHARACTERISTICS APPLICATIONS GAR-MAX®

High Load Capacity

Excellent shock

resistance

Excellent

contamination

resistance

Excellent misalignment

resistance

Very Good friction and

wear properties

Good chemical

resistance

Steering linkages,

hydraulic cylinder

pivots, king pin

bearings, boom

lifts, scissor lifts,

cranes, hoists, lift

gates, backhoes,

trenchers, skid

steer loaders, front

end loaders, etc.

SLIDING LAYER

Continuous wound

PTFE and high-

strength fibers

encapsulated in an

internally

lubricated, high

temperature filled

epoxy resin.

BACKING

Continuous wound

fiberglass

encapsulated in a

high temperature

epoxy resin.

GARMAX MATERIALSELF-LUBRICATEDNON-METALLICNO CORROSION5K TO 10K HOUR LIFELOW COST – 145 $CDUAL SEALSSS WEAR SLEEVEWATER PRESSURIZEDFIELD REPLACEABLE BEARING HOUSING

PIVOTING

SUPPORT

INDIVIDUAL

BAGGER

113 LITER

CONTINUOUS

HOSE

BAGGER

80 METERS

SECONDARY

CONVEYOR

WEATHER PROTECTION SYSTEMINDOOR OR OUTDOOR APPLICATIONSHEAT TRACINGREMOVABLE FRP COVER ALLOWS ACCESS TO HEAT TRACING AND WASH SYSTEM

ENCAPSULATED INSULATIONSTAINLESS STEEL HARDWAREEASY ASSEMBLY AND DISASSEMBLY

TEFLON BLANKETINSULATION BETWEEN INNER/OUTER LAYERVELCRO CONNECTIONS

SS BAND CLAMPS

6 THUMB SCREWS

REMOVABLE

FRP COVERS

REMOVABLE

TEFLON

BLANKET

ROLLING

COVERS

AVAILABLE IN A TANK

FORCEMAIN APPLICATIONS

DESIGN STANDARDSIEC – STANDARD

NEMA – OPTIONAL

cUL LABELED – STANDARD

MAIN CONTROL PANEL (MCP) ENCLOSURE OPTIONSNEMA 4/12 PAINTED STEEL – INDOORS NON EX-PROOF

NEMA 4X STAINLESS STEEL – OUTDOORS

NEMA 4X FRP – OUTDOORS

CONTROL LOGICMOELLER EASY RELAY 819 – STANDARD

ALLEN-BRADLEY MICROLOGIX 1100 OR 1400 PLC – OPTIONAL

RELAYS AND TIMERS – OPTIONAL

VFD WITH LINE REACTOR FOR SCREEN BENEFITSSOFT START

TRUE POWER OVERLOAD PROTECTION

DC INJECTION BRAKING FOR START-STOP OPERATION

STATUS INDICATION

TRANSIENT VOLTAGE SURGE SUPPRESSOR (TVSS)

DOOR-MOUNTED RUN TIMER FOR SCREEN DRIVE

MAIN CONTROL PANEL OPTIONS:WHITE FUSED EPOXY COATING FOR OUTDOOR APPLICATIONS

TO MINIMIZE HEAT BUILD-UP

DEADFRONT WITH WINDOW FOR SECURITY

UNINTERRUPIBLE POWER SUPPLY (UPS)

FLASHING ALARM LIGHT AND HORN

FLASHING ALARM LIGHT

LIGHTNING ARRESTOR

30-INCH SUPPORT STAND

INTERIOR LIGHT

CONVENIENCE OUTLET

WINDOW KIT FOR VFD

cUL LABEL FOR APPLICATION

OPERATOR LOCAL CONTROL STATION (LCS)

FOR EXPLOSION-PROOF ENVIRONMENTSHAND-OFF-AUTO SWITCHES FOR:

SCREEN

COMMON WASH SYSTEM SOLENOID VALVES (3)

FORWARD-OFF-REVERSE SWITCH FOR SCREEN

EMERGENCY-STOP PUSHBUTTON (RED)

CYCLE/RE-SET PUSHBUTTON (BLACK)

NEMA 4/7/9 CAST ALUMINUM ENCLOSURE

HOLD E-STOP PUSHBUTTON IN FOR 3

SECONDS TO RUN SCREEN THROUGH A

FULL CLEANING CYCLE

CLEANING CYCLE INITIATEDFLOAT SWITCHES – STANDARD

ULTRASONIC LEVEL SENSOR – OPTIONAL

MORE THAN 700 INSTALLATIONS

MOST COMPETING SCREENS ARE FABRICATED IN

EUROPE

RAPTOR® FINE SCREEN MADE IN NORTH AMERICA:CHARITON, IOWA – U.S.A.

PARTS AVAILABILITY

SERVICE AND REPAIR

ALL STAINLESS STEEL DESIGN – NO CORROSION

HEAVY-DUTY DESIGN WITH GREATER MATERIAL

THICKNESSES – MORE DURABLE

MACHINING OF ALL MATING SURFACES – LESS WEAR

HEAVY-DUTY DRIVE DESIGN

REPLACEABLE LOWER BEARING DESIGN WITHOUT

SCREEN DISASSEMBLY

2-STAGE SCREENINGS WASHING – CLEANER AND

DRIER SOLIDS

FACTORY PRE-PLUMBED AND PRE-WIRED WASH

SYSTEMS – LESS INSTALLATION COST

PREMIER WEATHER PROTECTION

TANK-MOUNTED OPTIONS

MULTIPLE CONTROL PANEL OPTIONS

DESIGN BASED ON PEAK FLOWOFFERED IN TEN (10) STANDARD MODELS

SG-6-1.0 – 3.79 MLDSG-7-2.5 – 9.46 MLDSG-8-4.0 – 15.14 MLDSG-10-7.0 – 26.50 MLDSG-11-9.5 – 35.96 MLDSG-12-12.0 – 45.42 MLDSG-14-16.0 – 60.57 MLDSG-18-30.0 – 113.56 MLDSG-20-50.0 – 189.27 MLDSG-24-70.0 – 264.98 MLD

DIAMETERS FROM 1.83 TO 7.32 METERS270-DEGREE OR 360-DEGREE CONFIGURATIONCARBON STEEL OR AISI TYPE 304 AND 316 STAINLESS STEEL CONSTRUCTION

ROTATING PADDLE/PROPELLERKEEPS ORGANICS IN SUSPENSION

ALLOWS HEAVIER GRIT TO BE CAPTURED AND SETTLE

PADDLE BLADE PITCH AND HEIGHT ARE ADJUSTABLE

0.56 TO 1.5 kW DRIVE ASSEMBLY

CAN BE PROVIDED WITH A VARIABLE FREQUENCY DRIVE FOR

ROTATIONAL SPEED ADJUSTMENT

RAPTOR® SPIRAGRIT REMOVES95% OF GRIT GREATER THAN 50-MESH (297 MICRON) IN SIZE

85% OF GRIT GREATER THAN 70-MESH (210 MICRON) IN SIZE

65% OF GRIT GREATER THAN 100-MESH (149 MICRON) IN SIZE

2.65 AND GREATER SPECIFIC GRAVITY PARTICLES

HEADLOSS IS GENERALLY LESS THAN 6 mm

GRIT FLUIDIZATION PRIOR TO PUMPINGGRIT STORAGE HOPPERSOLENOID VALVE OPENS PRIOR TO PUMPING

AIRWATER

GRIT PUMP TYPESAIRLIFT PUMP WITH BLOWER TO SUPPLY THE AIRDRY-PIT VORTEX PUMPSELF-PRIMING PUMP – RECOMMENDED

GORMAN-RUPP SUPER T SERIESHARD IRON CONSTRUCTIONBELT DRIVE FOR CONSTANT SPEED DESIGNDIRECT DRIVE FOR VARIABLE SPEED DESIGN10.7 TO 15.8 LITERS/SECOND TYPICAL RANGE2.2 TO 11.2 kW DRIVE ASSEMBLY DEPENDING UPON FLOW AND TOTAL DYNAMIC HEAD (TDH)

GRIT CLASSIFIERSTYPE “L” CLASSIFIERTYPE “W” CYCLONE-CLASSIFIER – RECOMMENDED

KREBS CYCLONEGRIT SEPARATION AND CONCENTRATIONREMOVES 90% OF THE WATER PRIOR TO CLASSIFIERREPLACEABLE NEOPRENE LINERS

CLASSIFIERDEWATERS THE GRIT CONCENTRATECARBON STEEL AND AISI TYPE 304 OR 316 STAINLESS STEEL CONSTRUCTIONSAME DIRECT DRIVE AS RAPTOR® FINE SCREENLINCORE 60-G HARD WELD ON THE SCREW FLIGHTS FOR WEAR RESISTANCE – 615 BRINELLSILICA SAND IS 570 BRINELLREMOVES 95% OF 150 MESH (100 MICRON) GRIT

SPIRAGRIT

SELF-PRIMING

PUMPGRIT CYCLONE-

CLASSIFIER

DRIVE

ASSEMBLY

SELF-PRIMING

PUMP

GRIT CYCLONE-

CLASSIFIER

SELF-PRIMING

PUMP

GRIT CYCLONE-

CLASSIFIER

SPIRAGRITRAPTOR ®

FINE SCREEN

HIGH GRIT REMOVAL EFFICIENCY

FLEXIBLE ORIENTATION OF THE SPIRAGRIT

FLEXIBLE GRIT PUMPING OPTIONS

SIMPLE GRIT CLASSIFICATION

DRY GRIT

LOW ORGANICS

SIMPLE MAINTENANCE

FLEXIBLE MATERIALS OF CONSTRUCTION

CONTROLS – SIMILAR TO RAPTOR® FINE SCREEN

FIRST UNIT INSTALLED IN 1934

FLORA, IL – STILL IN SERVICE

3,000+ SPIRAFLO CLARIFIER INSTALLATIONS

PROVEN HYDRAULICS – FULL SCALE TESTING

2 TO 4 TIMES MORE HYDRAULICALLY

EFFICIENT THAN CENTER-FEED CLARIFIERS

LOWER OVERALL INSTALLED COSTS

DESIGN BASED UPON LARGER OF:

PEAK HOUR FLOW

PEAK DAYS SOLIDS LOADING

INDEPENDENT TESTING

GIL-6 IOWA STATE FULL-SCALE TESTING

SCI-70 IOWA STATE PROTOTYPE STUDY

SCI-69 VERMONT STUDY

SCI-255 SOUTH KINGSTON, RI, STUDY

GIL-39 IOWA STATE SOLIDS CAPTURE

SCI-70 EWING-LAWRENCE, NJ STUDY

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

DY

E C

ON

CE

NT

RA

TIO

N,

mg/L

TIME, minutes

Center-Feed Clarifier Spiraflo Clarifier

Tm = 5.4 minTm = 24.0 min

Ta = 37.2 min

T = 48.7 min

Ta = 30.4 min

T = 48.7 min

T = Theoretical Detention Time, minutes

Ta = Time to Half-Area Ordinate, minutes

Tm = Time to Mode, minutes

NOTE: Curves are at a hydraulic loading rate of 33 m3/m2-day

PARAMETER RATIO

Diameter, meters

Sidewater Depth, m

Surface Area, m2

Volume, m3

Hyd. Loading, m3/m2-day

1.33

1.40

1.78

2.49

1.00

24.4

4.27

18.3

3.05

467 263

1,993 801

15.58 15.58

CENTER

FEED

SPIRAFLO

Theoretical Detention, min 394 285 1.38

0

20

40

60

80

100

120

140

160

0 5 10 15 20 25 35 40 45 50 55 60 65 70 75 80 85 90 100 110 120 135 150 165 180 195 210 240 270

TIME, minutes

DY

E C

ON

CE

NT

RA

TIO

N,

mg

/l

SPIRAFLO CENTERFEED

TIME TO PEAK

40 MINUTES

TIME TO PEAK

70 MINUTES

CENTER-FEED ACTUAL DETENTION TIME

90.4 MINUTES

SPIRAFLO ACTUAL DETENTION TIME

113 MINUTES

0

10

20

30

40

50

60

0 10 20 30 40 50 60 70

TS

S R

emoval,

%

Hydraulic Loading Rate, m3/m2-day

Center-Feed Clarifier Spiraflo Clarifier

EWING-LAWRENCE TOWNSHIP WWTF

MERCER COUNTY, NEW JERSEY

9 MONTH TSS REMOVAL STUDY

PRIMARY CLARIFIER PERFORMANCE

21.3 m CENTER-FEED CLARIFIERS

15.2 m SPIRAFLO CLARIFIERS

TESTING AT SAME HYDRAULIC LOADING RATE

SPIRAFLO CLARIFIERS REMOVED AN AVERAGE OF 21.6% MORE TSS

EFFLUENT

INFLUENT

RAS - SCUM

INFLUENT TROUGHSKIRT

RACE

EFFLUENT LAUNDERSCUM PIPE

TANK

INFLUENT

RACE

TANK

SLUDGE SCRAPER

SKIRT

EFFLUENT

EFFLUENT LAUNDER

RAS OR SLUDGE

INFLUENT TROUGHSCUM SKIMMER

SKIRT IS NOT ROUND

TAPERS FROM WIDEST POINT AT THE INLET

TO THE NARROWEST POINT AT THE SCUM

DRAW-OFF PIPE

TAPER IS BASED UPON INFLUENT FLOW AND

RAS FLOW FOR SECONDARY CLARIFIERS

EFFLUENT LAUNDER WEIR LENGTH IS

BASED UPON SKIRT DESIGN

INLET TROUGH

SKIRT

SKIRTRACE

SCUM

RACE SKIMMER

SCUM DRAW-OFF

FOUR (4) MECHANISM TYPES

SLUDGE SCRAPER – RECOMMENDED

STRAIGHT BLADED – MOST COMMON

SPIRAL SCRAPER – RAPID SLUDGE REMOVAL

ROTATE THE SAME DIRECTION AS THE FLOW

SOLIDS AND FLOW MOVE IN THE SAME DIRECTION

MOVES SOLIDS TO SLUDGE PIT IN TANK CENTER

COVERS THE FLOOR AREA 2 TIMES PER REVOLUTION

HYDRAULIC REMOVAL – SIPHON

SUCTION HEADER WITH ORIFICES

MULTIPLE SUCTION PIPES WITH CONTROL VALVES

SLUDGE PIT

SPIRAL BLADE

SLUDGE PIT

HYDRAULIC SLUDGE REMOVAL

HYDRAULIC HEAD DIFFERENTIAL – SIPHON

RAPID RETURN OF ACTIVE SOLIDS

MINIMIZES FLOATING SLUDGE

TWO (2) TYPES

DIRECT REMOVAL

SUCTION HEADER(S) WITH ORIFICES

CONTROLLED REMOVAL

INDIVIDUAL RISERS PIPES

FLOW CONTROL VALVES FOR EACH PIPE

COMMON SLUDGE WELL

SLUDGE PLOW BLADES

DIRECT SLUDGE FOR REMOVAL

SUCTION REMOVAL ARM

ORIFICE OPENINGS

SUCTION

REMOVAL

ARMS ORIFICESCOLLECTION

MANIFOLD

SLUDGE PLOW BLADES

DIRECT SLUDGE FOR REMOVALSLUDGE

COLLECTION

WELL

SLUDGE VALVES SUCTION REMOVAL PIPES

SLUDGE

COLLECTION

WELL

SLUDGE REMOVAL PIPES

SLUDGE VALVE

SLUDGE COLLECTION WELL

SLUDGE

REMOVAL

PIPES

SLUDGE PIPES

95 TO 100% OF SCUM IS TRAPPED AND SKIMMED IN RACE

OPTIONAL SECONDARY SKIMMER DESIGNS

MOTORIZED FULL-SURFACE SKIMMER0.56 kW DRIVE

OPERATED MANUALLY OR ON A TIMED BASIS

DUCKING FULL-SURFACE SKIMMEROPERATES CONTINUOUSLY

CONNECTED TO SLUDGE SPRAPER OR HEADER

BOTH DESIGNS DISCHARGE INTO A SCUM PIPEMANUALLY ACTUATED

MOTORIZED WITH RAISE / LOWER LIMIT SWITCHES

0.56 kW DRIVE

SKIMMER SCUM PIPESCUM

BOX SCUM PIPE

SKIMMER

SCUM PIPE

SCUM PIPE

DUCKING SKIMMER

SCUM PIPE

DUCKING SKIMMER

RACE SKIMMER

CROSBY

STAMFORD

BAFFLE

610 mm

MC KINNEY

BAFFLE

MID-RADIUS

BAFFLE

FLOC WELLENERGY

DISSIPATION

FEEDWELL

HIGHER EQUIPMENT COST FOR SPIRAFLOINCLUDES EFFLUENT LAUNDERS

INCLUDES EFFLUENT WEIRS

TOTAL INSTALLED COST ≤ CENTER-FEED

CLARIFIER

CENTER-FEED COST CONSIDERATIONSCLARIFIER EQUIPMENT

EFFLUENT LAUNDER CONSTRUCTION

WEIRS AND SCUM BAFFLES

HYDRAULIC BAFFLING

ENERGY DISSIPATION FEEDWELL OR FLOCWELL

ADDITIONAL BURIED PIPING

CIRCULAR TANK ONLY:

NO CONCRETE WEIR

TROUGHS

NO DEEP BURIED

INFLUENT PIPE

INCLUDES BYPASS

STRUCTURE

NO SPECIAL BAFFLES

INCLUDES EFFLUENT

TROUGH AND WEIRS

MOTOR

REDUCER

PINION GEAR

PINION BEARING

MAIN BEARING

MAIN GEAR

3,000+ INSTALLATIONS SINCE 1934

HANDLES PEAK FLOWS MORE EFFICIENTLY

PRODUCES THE HIGHEST QUALITY EFFLUENT

MULTIPLE SLUDGE WITHDRAWAL OPTIONS

PROVIDES POSITIVE SCUM REMOVAL

DOES NOT REQUIRE SPECIAL BAFFLES

DOES NOT REQUIRE SPECIAL FEED WELLS

DOES NOT REQUIRE FLOCCULATION WELLS

LOWER TOTAL INSTALLATION COST

10-YEAR DRIVE WARRANTY

COMMONLY CALLED THE “OXIDATION DITCH”

LAKESIDE INTRODUCED TO NORTH AMERICA

2,000+ INSTALLATIONS SINCE 1964

PRESENTED DESIGNS FOR 5 AND 10 MLD ONLY

KENNEDY-JENKS ENGINEERS STUDY COMPARED

FOUR (4) COMMON TREATMENT PROCESSES IN

THE STATE OF WASHINGTON:

OXIDATION DITCHES

STABILIZATION PONDS

SEQUENCING BATCH REACTORS (SBR)

CONVENTIONAL ACTIVATED SLUDGE

STUDY CONCLUDED THAT OXIDATION DITCHES:

REQUIRED LESS LAND AREA DUE TO LESS SOLIDS

TREATMENT REQUIRED

ROUTINELY PRODUCED A BETTER EFFLUENT QUALITY

REQUIRED LESS ELECTRICAL ENERGY

REQUIRED LESS LABOR AND OPERATING BUDGET COST

PRODUCED LESS WASTE SLUDGE (SOLIDS)

HAVE A LOWER CAPITAL (CONSTRUCTION) COST

STANDARD DESIGN - PROPOSAL

DUAL REACTORS

MAGNA ROTOR AERATORS

OXYGEN DELIVERY

MIXING

MEET OXYGEN AND MIXING WITH ONE UNIT OUT OF SERVICE

LEVEL CONTROL WEIRS

PROVIDE MAGNA ROTOR BLADE IMMERSION VARIATION

VARIABLE OXYGEN TRANSFER TO MEET PROCESS REQUIREMENTS

VELOCITY CONTROL BAFFLES

ROTOR COVERS

MINIMIZE HEAT LOSS DURING THE WINTER

PROVIDE SPRAY AND SPLASH CONTROL

0

2

4

6

8

10

EFFLUENT PARAMETER

10 10

1

EF

FL

UE

NT

, m

g/l

BOD5 TSS NH3-N

TOTAL NITROGEN REMOVAL - OPTIONAL

CYCLIC AEROBIC AND ANOXIC PHASES

AEROBIC – DISSOLVED OXYGEN RANGE OF 0.5 TO 2.0 mg/l

ANOXIC – DISSOLVED OXYGEN RANGE LESS THAN 0.5 mg/l

MAGNA ROTORS PROVIDE OXYGEN/MIXING DURING

AEROBIC PHASE

ADD SUBMERSIBLE MIXERS FOR MIXING DURING ANOXIC

PHASE

REACTORS ARE CYCLED BETWEEN

AEROBIC CONDITIONS – BOD5 AND NH3-N REMOVAL

ANOXIC PHASE - NO3-N IS CONVERTED TO N2 GAS

N2 GAS IS RELEASED TO THE ATMOSPHERE

OXYGEN IS RECOVERED – UP TO 25% POWER SAVINGS

0

2

4

6

8

10

EFFLUENT PARAMETER

10 10

53

1

EF

FL

UE

NT

, m

g/l

BOD5 TSS TOTAL N TKN NH3-N

TOTAL PHOSPHORUS REMOVAL

ADD ANAEROBIC SELECTOR(S) PRIOR TO CLR

TANKS

ANAEROBIC – NO OXYGEN AND NO NITRATES (NO3)

ADD SUBMERSIBLE MIXERS FOR MIXING

SOLUBLE PHOSPHORUS IS RELEASED IN THE

ANAEROBIC TANKS

SOLUBLE PHOSPHORUS ABSORBED DURING

AEROBIC CONDITIONS IN THE CLR TANKS

PHOSPHORUS IS REMOVED IN THE WASTE SLUDGE

0

2

4

6

8

10

EFFLUENT PARAMETER

10 10

53

1 1EF

FL

UE

NT

, m

g/l

BOD5 TSS TOTAL N TKN NH3-N TOTAL P

BOD5 - 3 mg/l

TSS - 4 mg/l

NH3-N - 0.12 mg/L

TOTAL P - 0.38 mg/l

BOD5 - 4 mg/l

TSS - 7 mg/l

NH3-N - 0.22 mg/L

BOD5 - 1.1 mg/l

TSS - 4 mg/l

NH3-N - 0.14 mg/L

PO4-P - 0.30 mg/l

BOD5 - 1.6 mg/l

TSS - 3.5 mg/l

NH3-N - 0.13 mg/L

MAGNA ROTORS

LENGTH – 1.5 TO 9.1 m (5 TO 30 FEET)

ROTATIONAL SPEED – 37 TO 72 REV/MIN

ACHIEVED WITH VARIABLE SPEED DRIVES (VFDs)

CONSTANT SPEED DRIVES ARE OPTIONAL

IMMERSION – 127 TO 381 mm (5 TO 15 INCHES)

ADJUSTMENT PROVIDED BY LEVEL CONTROL WEIR

OXYGEN TRANSFER

1.01 kg O2/meter AT 37 REV/MIN AND 127 mm IMMERSION

9.82 kg O2/meter AT 72 REV/MIN AND 381 mm IMMERSION

9.7-TO-1 OXYGEN DELIVERY RATIO

BULK LIQUID VELOCITY OF 0.3 TO 0.6 m/sec (1 TO 2 ft/sec)

MAGNA ROTORS

BLADES

AISI TYPE 304 STAINLESS STEEL

10 GAUGE THICKNESS

1,067 mm (42-inch) DIAMETER

76 mm (3 inch) WIDE

CAN TAKE A 113 kg (250 lb) SHOCK LOAD WITHOUT

DEFORMATION

TWELVE (12) BLADES PER STAR ASSEMBLY

TWO (2) STAR ASSEMBLIES PER 0.3 m (1 ft) OF LENGTH

TWO (2) AISI TYPE 304 STAINLESS STEEL BOLTS WITH

SILICON BRONZE LOCKNUTS PER BLADE

COMPRESSION FIT ON THE TORQUE TUBE

MAGNA ROTORS

TORQUE TUBE

UP TO 9.1 m (30 ft) IN LENGTH

356 mm (14-in.) DIAMETER

9.5 mm (3/8-in.) MINIMUM WALL THICKNESS

DRIVE AND TAIL END FLANGED STUB SHAFTS

BEARINGS

RELIANCE-DODGE – DESIGNED BY LEC – STOCK

TAIL END BEARING – EXPANSION-TYPE

DRIVE END BEARING – FIXED TYPE

AFBMA L10 THEORETICAL LIFE > 100,000 HOURS

LUBRICATE EVERY TWO (2) MONTHS

ALUMINUM SPLASH PLATES AND FRAMES

MAGNA ROTORS

DRIVE ASSEMBLY

SPEED REDUCER

RELIANCE DODGE – TORQUE ARM II DESIGN

AGMA CLASS II SERVICE FACTOR – 1.4 S.F.

CHANGE OIL 3 TIMES PER YEAR OR USE SYNTHETIC

V-BELT AND SHEAVE DRIVE

ALUMINUM OR STAINLESS STEEL BELT GUARD

MOTORS

MOUNTED ON AN ADJUSTABLE BASE

1.15 SERVICE FACTOR

TEFC – INVERTER-DUTY RATED

VELOCITY CONTROL BAFFLES

ARE USED TO ADJUST MIXING VELOCITY

INFINITELY ADJUSTABLE FROM 15 TO 60 DEGREES

ROTOR COVERS

FIBERGLASS CONSTRUCTION

0.91, 1.22, AND 1.52 m (3,4, OR 5 ft) WIDTHS

EACH SECTION OPENS TO ALLOW ROTOR ACCESS

FROM THE BRIDGE

ROTOR COVER

ROTOR ASSEMBLY

TAIL BEARING

DRIVE BEARING

SPEED REDUCER

MOTOR

V-BELTS/SHEAVES

EASY OPERATOR ACCESS

DRY AND CLEAN AREA

CAN USE PORTABLE CRANE TO:

CHANGE MOTOR

CHANGE REDUCER

CHANGE BEARING

CHANGE STUB SHAFT

PROVEN PERFORMANCE

MORE THAN 2,000 INSTALLATIONS

SIMPLE PROCESS OPERATION

ADVANCED TREATMENT AT A BUDGET PRICE

ENERGY EFFICIENT MAGNA ROTORS

LOW MAINTENANCE

EASILY UPGRADABLE IN THE FUTURE

PROCESS CONTROLS AND INSTRUMENTATION