introduction to envirotech electrocoagulation. electro-what?!?
TRANSCRIPT
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Introduction toEnviroTech Electrocoagulation
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Electro-what?!?
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Environmental Protection Agency (EPA) Environmental Technology Verification Program (ETV)
• Research on ETIG (through KASELCO partner) Electro-coagulation technology is peer reviewed by ETV
• Here are research papers from ETV http://www.epa.gov/etv/pdfs/vrvs/06_vr_kaselco_vs.pdf http://www.epa.gov/etvprgrm/pdfs/testplan/06_tp_kaselco.pdf
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Introduction toEnviroTech International
ELECTROCOAGULATION
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Electrocoagulation HistoryElectrocoagulation History
• 1906 - Dieterich Patent• Bilge Water Treatment• 1980’s - Revival• 1988 - Article in Products Finishing
Magazine• 1999 - First Kaselco Patent• 2001 - Second Kaselco Patent• 2003 - Third Kaselco Patent
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First Prototype CellFirst Prototype Cell
Early prototypeconfiguration
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Interior Reactor Design
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Present ApplicationsPresent Applications
• Metal Finishing - Plating• Remediation• Tannery (South Africa)• Emulsified Oils• Bilge Water• Die Casting• Truck Wash
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EnviroTech Plating ApplicationEnviroTech Plating Application
Rectifiers and Controllers for
ElectrocoagulationReactors at EnviroTech
Electroplating
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EnviroTech Electroplating Application
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EnviroTech 2.27 tons/hour SystemEnviroTech 2.27 tons/hour System
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EnviroTech Plating LaboratoryEnviroTech Plating Laboratory
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EnviroTech Plating LaboratoryEnviroTech Plating Laboratory
• Spectroscope
• Distiller
• Digester
• AA (not shown)
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EnviroTech LAB Atomic Absorption Spectrophotometer
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Electrocoagulation Concepts
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Chemical Reactions
• Metals + Oxygen + Iron• Hexavalent Chromium + Hydrogen Ion• pH• Oils + Oxygen• Bacteria + Oxygen or Hydroxyl Ion• Dyes + Hydrogen or Oxygen
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Operating Costs – 12.5 tons/hour Unit
• Bilge Water with Refinery Water
Costs Reduced 50%
Productivity Doubled
Added 13 Ships
Eliminated One Shift
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Operating Costs - Plumbing Plater
• Decorative Nickel/Chromium Process
Reduced sodium metabisulfite 90%
Eliminated Plant Odor
Eliminated Health Hazard
Reduced Sludge 40%
Reduced Treatment Cost 70%
Met Discharge Standards
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EnviroTech Installation
• Nickel, Chromium, Zinc, others
Reduced Sludge 40%
Reduced Chemicals >90%
Eliminated 15,000 Kg Salts in River
Assured Compliance with Standards
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EnviroTech Electroplating Application
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General Benefits
• Reduced Treatment Cost• Reduced Chemical Usage• Reduced Sludge Generation• Simple Operation• Broad Spectrum of Treatment• Cleaner Effluent
Less Salt in DischargeLower Concentration of Contaminants
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Typical Results• CONTAMINANT INFLUENT mg/l EFFLUENT mg/l• Oil Pipeline:• TPH 2,900 31.7• Oil and Grease 2,180 <5.0
• Bilge Water:• Turbidity (FAU) 455 12
• Steel Coating:• Chromium 36.63 <0.005
• Cooling Tower:• Copper 1.96 <0.005• Zinc 6.921 <0.005
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Typical Results• CONTAMINANT INFLUENT mg/l EFFLUENT mg/l• Die Caster:• Iron 1,520 1.5• Nickel >25 0.12• Zinc 12 <LDL• Manganese 200 <LDL
• Plater:• Phosphate 135 25• Copper 14.1 0.2• Lead 377.6 0.8• Clarity (FAU) 2,737 57
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EnviroTech PILOT TEST 3-22-04
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Die-casting Waste
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California Electroplating Plant
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California Electroplating Plant
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California Electroplating Plant
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Reactor Sizes & CapacitiesReactor Sizes & Capacities• 2.5 GPM or 0.57 tons/hour• 10 GPM or 2.27 tons/hour• 25 GPM or 5.7 tons/hour• 75-150GPM or 17.1
tons/hour-34.1 tons/hour• UP TO 1500 GPM or 342
tons/hour
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2.5 gpm (0.57 tons/hour) Reactor
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Inside Reactor
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10gpm (2.27 tons/hour) Reactor
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25gpm (5.7 tons/hour) Reactor
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Pilot Systems
• 0.57 tons/hour Sur-Flo Reactor Package• 0.57 tons/hour Sur-Flo W/Solids Separation• 0.57 tons/hour DAF• 2.28 tons/hour Sur-Flo Reactor Package• 2.28 tons/hour Hi-Flo Reactor Package• 0.028 cubic meter Filter Press
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0.57 tons/hour Dissolved Air Flotation
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2.28 tons/hour Sur-Flo Reactor Package
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2.27 tons/hour Hi-Flo Reactor
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2.27 tons/hour Hi-Flo Reactor
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Candidate Wastes Candidate Wastes
• Low Organics (“Aqueous”)• Metals < 450 ppm for one-pass treatment• Batch Treatment higher levels• Conductivity > 350 microSiemens• pH one point less than permit• Polluted lake, river, or well water as a
drinking water source
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Possible Applications Possible Applications
• Textile Dyes• Mixed Metals and Organics• Oil & Grease