Supercritical Water Oxidation Update City Council Workshop April 25, 2011 17.4 MGD (40) 13.1 MGD (25) 5.1 MGD (7.5) Iron Bridge Rulemaking Updates “The management of residuals, both nationally and in Florida, has grown increasingly controversial as development has brought people and residuals sites closer together. Indeed, several local governments have recently adopted or are considering restrictive residuals ordinances. Concerns with the beneficial use of residuals are clearly a statewide issue and the Department wants to review and address these concerns.” Long Term Planning Considerations • After excessive rain in 2004, we had difficulty finding suitable land application sites • Recognized that proposed rule changes would make land application difficult if not impossible • Tasked staff with finding a long term solution that would eliminate our dependence on land application Long Term Planning Considerations • In 2005, team of Boyle Engineering and Black & Veatch evaluated options that provided an all weather solution and didn’t rely on landspreading • Team reviewed available technology and developed a short list consisting of: – Pelletization – Incineration – SCWO Incineration Pelletization SCWO What is SCWO? • Supercritical Water Oxidation uses high pressure and temperature water to treat sludge • Organic material dissolves in supercritical water. In the presence of oxygen, organic material will chemically combust (burn without flame) at SCWO temperatures and pressures. • End result is inert ash, metal salts, water, carbon dioxide and heat • The heat energy is captured through heat exchangers and will be used to power a steam turbine SCWO upsides •Technology results in complete destruction of organic material in sludge •Provides the highest level of treatment recognized by regulatory agencies •Produces excess energy and usable byproducts (CO2, phosphorus and hot water) •Provides all weather solution and is not dependent on land application SCWO downsides •Technology had only been demonstrated on a small, pilot scale basis •Had not been tested extensively on wastewater sludge •Process would require significant R&D investment before it could be adapted to wastewater application Path forward •On May 21, 2007, Council approved entering into an agreement with SuperWater Systems to develop a full size pilot unit •City provided operating expertise and R&D funding and agreed to turn over new IP to SuperWater •SuperWater provided access to patented technology elements •City to receive development royalty of $2.50 per ton of sludge processed worldwide and SuperWater would purchase pilot unit at end of testing History of innovation •It’s not normal for a municipality to take on R&D of new technology •What makes Orlando different? •Orlando has a history of developing successful, innovative wastewater projects •Water Conserv II •Iron Bridge Wetlands •Iron Bridge plant rerate •ERRWDS Water Conserv II City Investment Engineering Design Fees - $8.4 million Construction cost - $76.3 Million Return on Investment •Project has proven to be a significant component of Central Florida water supply plan •RIBs flows were key part of OUC’s consumptive use permit •Received numerous awards, from prestigious Grand Conceptor by American Consulting Engineers Council to Outstanding Project of the Year Award by the WateReuse Association. Iron Bridge Wetlands City Investment Engineering Design Fees - $2.1 million Construction cost - $19.4 Million Return on Investment •Has received numerous awards such as Governor’s Environmental Award and WEF Outstanding Achievement Award •Provides great park amenity visited by 15,000 people annually •Has been rerated from 20 mgd to 32 mgd at no additional cost to City (savings of $10 million if new capacity had to be constructed) •Provides high level of treatment – sufficient to meet new NNC established by EPA Iron Bridge rerating City Investment Engineering Design Fees - $7.1 million Construction cost - $32.7 Million Return on Investment •Consulting engineer estimates the cost of constructing equivalent new capacity at $80 million •Capital cost savings to City of over $40 million •May be rerated to a higher capacity, increasing the ROI even further ERRWDS City Investment Engineering Design Fees - $6.4 million Construction Cost - $45.6 Million Return on Investment •Key part of Central Florida’s alternative water supply plan – Seminole County, Orange County, UCF, Oviedo, and OUC •Instrumental in OUC’s consumptive use permit negotiations •Minimizes/eliminates surface water discharge to Little Econ (tough rules ahead!) •Results in annual revenues of $550,000 from reclaimed water sales SCWO Project Status SCWO Project Status • Initiated design work in 2006 and completed design concept in late 2007 • Construction initiated early 2008 using combination of city forces and contractors for fabrication and installation; completed base unit in early 2009 • Began pilot testing on Jan. 2009 and over the next 18 months, debugged and modified the process • Conducted sub-critical runs with sludge in late 2010 • Conducted super critical runs of sludge in February 2011 City Investment Engineering Design Fees - $3.0 million Construction Cost - $5.5 Million Return on Investment • Long term compliance with any possible regulatory changes •Provides all-weather solution and eliminates reliance on land application •Based on SuperWater business projections, has the ability to return royalty payments of $60 million over the next 20 years Long Term Financial Considerations Capital Cost at 35 dry tons per day Operating cost/ D.T. Annual operating cost Land Application $32,850,000 (2190 acres at $15,000) $257 $3,283,175 SCWO $33,698,000 $268 $3,423,700 Gasification $38,682,000 $286 $3,653,650 Pelletization $30,381,000 $429 $5,480,475 Incinerator $53,496,000 $647 $8,265,425 Transition plan Transition plan •On today’s agenda is an agreement for SuperWater to lease space at Iron Bridge to continue process development and testing •Also working on Amendment 3 to the original agreement spelling out the transition terms •Plan to bring Amendment 3 to Council for approval by May 23 Don Morgan, Chief Executive Officer SuperWater Solutions, Inc. Copper Yaw, Chairman Waterway Finance Limited Transition plan Business model options: •Outright sale •Lease to own •Contract operations •Build/own/operate for tipping fee with customer option to purchase at any time in future Transition plan Production schedule assuming order by end of May: •Enter into design agreement with an engineering firm– June 2011 •90% Design completion - Dec 2011 •QA/QC review with City and development of final drawings – Jan 2012 •Start production of first unit – Feb 2012 •Construction completion - Dec 2012 Transition plan Production schedule: •Factory Testing - June through Nov 2012 •Construct site modifications – Summer 2012 •Delivery to City Conserv II plant - Dec 2012 •Start up and testing - Jan 2013 •Fab / Delivery of remaining units - June 2013 Financing Plan Questions?