ALSI Air and Liquid Systems, Inc. CheckMark vs. Centrifuge

Liquid Extraction Chamber’s (LEC) deep pool provides substantial buffer for variable sludge feed rates and adequate residence time for solids coagulation and the wicking away of free water. CheckMark ™ Gravity Dewatering System 1Liquid entry 2Polymer chemistry 3Replaceable media 4Flat wire belt and side seal 5 Level control 6 Drive motor 7 Sludge on drying ramp 8 Doctor blade 9 Optional Media Separator LEC

6Drive motor 7Sludge on drying ramp 8Doctor blade 9Low pressure/high volume vacuum producer 10 Mist Eliminator LEC DDC MRC 1 Liquid entry 2 Polymer chemistry 3 Replaceable media 4 Flat wire belt and side seal  Level control Liquid Extraction Chamber’s (LEC) deep pool provides substantial buffer for variable sludge feed rates and adequate residence time for solids coagulation and the wicking away of free water. Dry Down Chamber (DDC) enhances water removal utilizing warm air flow down and across the sludge cake producing dewatering efficiencies as high as 35-50% by weight. Media Release Chamber (MRC) aerates the filter media from below, drying the sludge and allowing release and separate disposal of sludge and media. CheckMark ™ Single Vacuum Dewatering System

7 Sludge on drying ramp 8 Doctor blade 9 High pressure/low volume vacuum producer 10 Mist eliminator 11 Low pressure/high volume vacuum producer 12 Mist Eliminator 1Liquid entry 2Polymer chemistry 3Replaceable media 4Flat wire belt and side seal  Level control  Drive motor LEC DDC MRC Liquid Extraction Chamber’s (LEC) deep pool provides substantial buffer for variable sludge feed rates and adequate residence time for solids coagulation and the wicking away of free water. Dry Down Chamber (DDC) enhances water removal utilizing warm air flow down and across the sludge cake producing dewatering efficiencies as high as 50-55% by weight. Media Release Chamber (MRC) aerates the filter media from below, drying the sludge and allowing release and separate disposal of sludge and media. CheckMark ™ Dual Vacuum Dewatering Filter

GM Lansing Grand River

CheckMark ™ Heat of Compression Dewatering System 1Liquid entry 2Polymer chemistry 3Replaceable media 4Flat wire belt and side seal  Level control  Drive motor  Sludge on Drying Ramp 8 Doctor blade 9 High pressure/low volume vacuum producer 10 Mist eliminator 11 Low pressure/high volume vacuum producer 12 Heat Exchanger 13 Mist Eliminator Liquid Extraction Chamber’s (LEC) deep pool provides substantial buffer for variable sludge feed rates and adequate residence time for solids coagulation and the wicking away of free water. Dry Down Chamber (DDC) enhances water removal utilizing warm air flow down and across the sludge cake producing dewatering efficiencies as high as 75% by weight. Media Release Chamber (MRC) aerates the filter media from below, drying the sludge and allowing release and separate disposal of sludge and media. LEC DDC MRC

System Flow Diagram Liquid Extraction Chamber’s (LEC) deep pool provides substantial buffer for variable sludge feed rates and adequate residence time for solids coagulation and the wicking away of free water. Dry Down Chamber (DDC) enhances water removal utilizing warm air flow down and across the sludge cake producing dewatering efficiencies as high as 75% by weight. Media Release Chamber (MRC) aerates the filter media from below, drying the sludge and allowing release and separate disposal of sludge and media. LEC DDC MRC

System Cost Comparison 31 – 45 Jobs per Hr. (JPH) Base / Clear Batch Continuous Consolidator/ Equipment Palin/CheckMark TM Centrifuge SS Consolidators w/Platforms$ 104.5$ M3/Hr. (300 GPM) SS Buffer Tank w/Mixer18 LC, Valves and Controls Peristaltic Pump LPM (10 GPM), Controls/Field Piping Chemical Feed for Plant System 1818 ALSI CheckMark Dryer w/Controls KPH (90 lbs. per hr.) Polymer Mix Station5 Centrifuge w/Controls, Sound Enclosure KPH (90 lbs. per hr.) CAPITAL INVESTMENT$ 252.5$ ( US$ in Thousands )

Energy Consumption & Maintenance 250 Days/Year – 20 Hr./Day Batch Continuous Consolidator/ Equipment Palin/CheckMark TM Centrifuge SS Consolidators (2)466 KWY466 KWY.25 HP Intermittent SS Buffer Tank w/Mixer7,452 KWY 2 HP Centrifuge 1 HP Intermittent (15 min./1 hr)931 KWY 25 HP93,212 KWY ALSI CheckMark Dryer w/Controls 10 37,285 KWY 2074,570 KWY.5 Intermittent (10 min./4 hrs) 78 KWY Centrifuge Supply Pump 1.5 HP (90%)5,033 KWY TOTAL KILOWATTS/YEAR 112,399107,094 KWY - Kilowatt Per Year

30 – 45 JPH Sample Footprint Palins and CheckMark TM Dryer 9.1m 8.53m 6.24m 2.43m

30 – 45 JPH Sample Footprint Palins and Mix Tank 8.68m 5.48m 2.43m

Consolidator/Centrifuge Design Complicated Additional Chemical Make Down Small Diameter Pipes – Requires Regular Cleaning Water Flush Dilutes Solids Content High Maintenance Operator Intensive Batch Processing System Continuous Processing System Palin/CheckMark TM Design Simple Design Utilizes Gravity Open Access – Easy Cleaning Buffer Volume Built into CheckMark TM Liquid Pool Reduced Chemistry

Hyundai System Features Comparison 102 Jobs per Hr. (JPH) Base (204 lbs. per hr.) / Prime (209 lbs./hr.) Batch Continuous Consolidator/ Equipment Consolidator/CheckMark TMTank/Centrifuge Consolidators w/PlatformsXX Use Existing Modify ChutesX SS Buffer Tanks w/MixerX Level Controls; Valves and Controls Peristaltic Pump to Feed DryerX Chemical Feed for Plant System XX ALSI CheckMark Dryer w/ControlsX (2) 10HP, (2) 3/4HP (partial) Polymer Mix Station for Drying SystemX Centrifuge Yearly Factory Maintenance Bearing WorkX Media ConsumptionMinimal X Maintenance and Operating CostLowHigh

CheckMark TM Palin/bags Centrifuge Estimated %Solids by Weight *50-60 Maintenance Low LowMin 1-3 times/year Media Consumption $350** $2,000 N/A Yearly Service $1,500 $100 Complete teardown and major component replacement yearly. Minimum 1 chemical upset and 1 to 3 addt’l teardowns req’d (Min $5,000, Max $15,000) Polymer N/A N/A $1,500 * Denotes bag drying for 72 hrs. ** Denotes 6” Thick, 90 lbs/hr, (1) 1,000 yard roll of media per year

Hyundai Site Beijing China CheckMark Heated Dryers

DESIGN SOLIDS 50% by Wt. Solids Loading 20 Hrs./Day 6 Days/Week 102 Jobs per Hr. Prime / Base Per CheckMark Each Checkmark Processed 2,040 Lbs. per Hr. 10 % Solids (925kg per Hr. 10% Solids)

Information Required to Size a CheckMark Dryer Number of Jobs per Hr. Type of Paint Sprayed (Water Base, Solvent Base) Percent Solids by Weight of Paint Gallons Sprayed per Hour Transfer Efficiency Percent Solids by Weight of Sludge Discharge from Existing System Desired Percent Solids Required Drawings; Plan and Elevation Existing System Area Available for New Equipment (Drawing Preferred) Paint Solids and Target Solids Physical Space Available

ALSI Air and Liquid Systems, Inc. Thank You