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Conference on Advanced Treatment For Construction Sites October 21 st , 2004

Conference on Advanced Treatment For Construction Sites October 21 st , 2004 Sacramento, California. Presented by: James Mothersbaugh. Company Information. WT's first commercial project 1 st direct discharge to a public lake- <5ntu

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Conference on Advanced Treatment For Construction Sites October 21 st , 2004

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  1. Conference on Advanced Treatment For Construction Sites October 21st, 2004 Sacramento, California Presented by: James Mothersbaugh

  2. Company Information • WT's first commercial project • 1st direct discharge to a public lake- <5ntu 2001 Conditional approval for continuous treatment Continuous toxicity testing- acute & chronic Automated controls & online testing 2002 Wireless monitoring and performance controls • StartedOperations in California • Expanded operations in Nevada, Texas, Florida

  3. Company Information Scope of Services Certified Toxicity Laboratory Monitoring – Manual and inline automatic Stormwater Treatment – multiple designs Permitting – SWPPP & NPDES Equipment Supplier of Control Systems Fabrication of Specialty Systems

  4. Stormwater Phase II Clients Microsoft New Redmond City Hall Port of San Francisco-Pier 48 New Washington Mutual Headquarters Home Depot Whole Foods Sound Transit Brightwater Design Team I-5 Everett Design Team

  5. Stormwater Phase II We use various types of technologies to process stormwater Trucking Infiltration Filtration Passive Filtration Polymer-chitosan Electro-coagulation

  6. Trucking

  7. Infiltration

  8. Polymer - Chitosan

  9. Filtration - Cartridge, Sand & Bag Backwash to Tank Sand Media Filters PF50 Settling Tank Cartridge Filters Discharge to Storm Site-water Collection Point

  10. Passive Filtration Overflow alarm float w/ light Overflow to holding tank A Fabric B F PressureControl Valve Pressure Gage C D C V Flow meter E • 2” reinforced, perforated suction hose • Pea Gravel • Sand / recycled glass • 5/8” – 7/9” washed rock • 4” reinforced, perforated suction hose Sample Point C V Screen Filter Pump -50gpm @ 70’ head (In riser cone)

  11. Electro-coagulation

  12. MAKE SURE WHEN COMPARISONS ARE MADE EVERYTHING IS EQUAL

  13. WT’s Technologies Electro-Coagulation & Carbon Dioxide Control of Alkalinity

  14. Reactions Comparison Electrical-Coagulation Chemical Coagulation Metal plates are charged & sacrifice a (+) metal ion The metal ion is normally Ferric or Aluminum Ferric chloride positive charge Cationic polymers positive charge • The metal ion cause the destabilization of suspended particles • The destabilization results in several forms of coagulation (compression, adsorption, sweep & bridging) • The consumption of electrical energy is inversely proportional to the conductivity • Colloids normally carry a negative charge • Dosage rate is related to contaminant load

  15. Advanced Treatment Technologies Particle destabilization is essential Particle sweeping is essential Particle agglomeration is essential EC Technology is based on Faraday’s Laws of Electrolysis

  16. Four Main Reaction Principles • Electro-flotation  !!!!!!!! • Production of micro bubbles supporting sweep aggregation of particles • Electro-flocculation • Production of flocculating agents that promote bridging and coalescence to remove colloids  • Electro-coagulation • Production of sacrificial ions to promote destabilization and charge neutralization and the promotion of oxidation • Electro-oxidation • Via the production of hydroxyl radicals

  17. Wave-Ionics: Equipment Profile Control center for performance, power and remote wireless monitoring management 2” Influent Wave Ionic Pro Logic Center W.I. Cell Unit Transformer Wave-Ionics Technology Polarity Rectifier 6” to 2” discharge

  18. Wave-Ionics: In Action

  19. Equipment Special Features Primary System Wireless alarms - notify operator loss of flow loss of electrical power pressure due to blockage NTU performance pH problem

  20. Performance Range pH Performance Turbidity Performance

  21. Performance Results - ZINC 1 mg/l for sanitary ----- > 99 % + reduction

  22. Performance Results - COPPER 1 mg/l for sanitary ……. 99 % + reduction

  23. Performance Results - LEAD .4 mg/l for sanitary …… 96 % + Reduction

  24. Wave-Ionics; Performance Control Specialize Amperage Design Allows for NTU Control

  25. AT Stormwater Phase II Applications for Electro-coagulation Construction Site Stormwater Groundwater Cleanup Emulsified Oils-Produced Waters Metals-Pesticides

  26. Liquid CO2 CO2 + H20  H2CO3 Carbonic Acid Liquid Carbon Dioxide stored Pressure and released as a gas

  27. CO2 GAS CO2 + H20  H2CO3 Carbonic Acid Effluent Recycled Water Weak Acid Simple Inorganic Safe Used for 3 yrs in Washington State Carbon Dioxide Liquid Injection

  28. Secured Web Portal Data Center Client A Client B Internet Network Topography Telemetry Backbone Application Runtime Server Development Station Router/Firewall Data Storage Server Local Station Local Station

  29. “Water Tectonics” Technology Evolution Turbidity pH Metals Reduction in Stormwater Enforcement of Regulations is changing & Technology is getting better

  30. “The 1st Key” Regulators Need To Be Involved

  31. “The 2nd Key” Clear Permit Language

  32. “The new rules” • Temporary Erosion Control Plans • That detail the size, frequency and volume of rainfall events as a baseline to design and size • stormwater treatment systems

  33. “The new rules” Expectations- numeric requirements!!!!!!!!! new digital control systems allow protection for the contractor, the State and the environment Subjective rules put all of us at risk!!

  34. “The new rules” • Water Characteristics – • Require the treatment system designers to address the site water characteristics; • high pH due to lime treatment, • low conductivity, • high colloidal clays • Backup emergency plans • Toxicity management

  35. “The new rules” • Setup reciprocal agreements • with other States • Treatment systems need safeguards to protect the environment & the user • calibration, toxicity controls • operation logs

  36. The new message Where Sediment ends – BMP’s Turbidity begins - AT Sediment is > 0.45 microns Turbidity is < 0.45 microns

  37. Ask yourself the questions Mobilization & Treatment Costs ? The market place will sort out cost of treatment What Performance is required ? The State needs to define the requirements What are the risks? Toxicity and Litigation Safe ?

  38. Summary Stormwater Phase II Compliance Water Tectonics, Inc 22833 Bothell Everett HwySuite 200Bothell, Washington 98021www. watertectonics.comOffice 425-402-1659Fax 425-424-2168 WT Water Tectonics

  39. Thank you for inviting us Presented by: James Mothersbaugh

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