Dr. Vladimir Novotny is an internationally recognized scholar and educator. In 2011, he became Professor Emeritus at Northeastern University where he was a CDM Endowed Chair Professor of Environmental and Water Resources Engineering and Director of the Center for Urban Environmental Studies. He continues to be active in AquaNova, LLC (formerly AquaNova International, Ltd). From 1973 through 2002, he taught and conducted research at Marquette University in Milwaukee, WI, and became Emeritus Professor in 2002. He received his undergraduate and part of his graduate education from the Brno University of Technology and his doctoral degree from Vanderbilt University (Nashville, TN) in 1971.
In 1991, Dr. Novotny founded the Specialist Group on Diffuse Pollution and Eutrophication of International Water Association (IWA) for which he received IWA's Sam Jenkins Medal award in 2002. Diffuse (nonpoint) pollution and water quality have been cornerstones of his research and publishing for forty years, and he published in this field ten books and more than 150 peer-reviewed journal and conference proceedings articles and book chapters. His book WATER QUALITY: Diffuse Pollution and Watershed Management (2nd edition, Wiley 2003) is a leading text on the topic.
In 2006, he prepared a successful proposal and subsequently organized the NSF, IWA, CDM, and Johnson Foundation sponsored workshop on Cities of the Future, attended by leading experts from several countries and held at the F.L. Wright built Wingspread Conference Center. Cities of the Future is now an acronym for a worldwide movement of water specialists, landscape architects, urban planners, and NGOs towards a paradigm change, resulting in planning, building and retrofitting urban areas that would reduce water use, restore and protect water resources, and use energy without adversely contributing to the global climatic changes. This was a natural change of the paradigm of environmental engineering from fixing the pollution problems caused by humans to developing urban societies living in harmony with nature where waste becomes a resource and water, energy, and nutrients are recovered and reused. This also necessitates a better management of water resources, eliminating pollution and preventing harmful algal blooms. He published three books and made numerous keynote presentations on this 21st century defining topic in China, Japan, Democratic Korea, Europe, Canada, Brazil, and the US. In 2009, he was appointed to the IWA's Steering Committee for The Cities of the Future.
Since the end of the last millennium, it has become evident that the current paradigm of water management in urban areas, in both developed and developing countries, is becoming exceedingly unsustainable, exerting large demands on water, energy and other resources that in the near future, cannot be met by the resources the earth possesses. This imbalance is exasperated by increasing population, people movement from rural area into cities, and contributing to the global climatic change. In the context of a city system, the flow, use and transformations of input water, energy, and materials result in polluted effluents and overflows, air pollution, excessive amounts of solid waste and greenhouse gas (GHG) emissions. The entire flow, use and transformation of resources and energy through the city constitutes urban metabolism. Current urban metabolism is linear, characterized by long distance underground transfers of water to the communities, underground conveyance of used water and stormwater, high energy use for transport, treatment and disposal of used water and solids. The metabolism concept and its footprints will be introduced, which will document the unsustainability problems with the current linear paradigm of urban water infrastructure design and management.
Introducing the worldwide Cities of the Future initiative, the presentation will highlight current developments and concepts of the new (fifth) paradigm leading towards water centric sustainable communities whereby stormwater conveyance is mostly on surface and rehabilitated and restored urban surface and ground water bodies are the integral parts of the entire water cycle system. Water use cannot be separated from energy. The backbone of the new paradigm approach to building new cities and retrofitting the old to become sustainable is distributed water and energy reclamation from used water and stormwater and reusing them in a partially or fully closed urban metabolic cycle based on the concept of the four R's: reduce (conserve), reclaim, reuse and restore. Implicit in these designs is a significant reduction of energy use from nonrenewable sources, and water conservation is the most efficient measure to reduce GHGs. In addition, nutrients (struvite), biofuel, hydrogen, heat, electricity, and organic solids can be reclaimed for reuse. A switch from traditional activated sludge energy demanding wastewater treatment to anaerobic co-digestion of concentrated used water with organic solids (sludge, solid food and yard waste and algae produced from waste nutrients) to produce energy is being investigated. This change will bring the GHG emissions from water systems to net zero or positive (energy producing) and significantly cut down the water and energy use by the entire urban conglomeration. Current and near future developments of sustainable water centric "ecocities" in Canada, China, Singapore, Sweden, Australia and other countries will be presented, analyzed and research needs as well as barriers to implementation will be outlined.
As a result of the intensification of agriculture in the last fifty years and building massive underground sewerage systems in growing communities in the last century, nutrient loads to surface and ground waters have dramatically increased throughout the world, creating eutrophic and hypertrophic water quality in lakes and reservoirs exemplified by harmful algal blooms (HABs) and hypoxic dead zones. The problem is magnified by global warming because the specific bloom causing genera, the cyanobacteria (blue-green algae), prefer warmer water where they can outcompete the other phytoplankton species. Cyano-HABs are exhibited by scrums and pea-soup appearance of the water body. This problem is especially troublesome in impoundments providing water supply to large communities. The problem of the hyper-eutrophic status exhibited by harmful algal blooms of cyanobacteria (Cyano-HAB) is becoming endemic to many impoundments in Europe and Asia including The Netherlands, Germany, China, and in the US (Florida and Texas). In Czech Republic, 70% of reservoirs have been classified as hypertrophic, which during algal blooms impairs their beneficial uses for water supply, recreation, and aquatic life propagation (fishing). Remedies are very costly, drastic and sometimes unsuccessful or transient. The phenomenon of eutrophication has been studied for decades but recently new findings contradict the previous theories such as the role of a limiting nutrient, linearity of the eutrophication progression being related to the input of the limiting nutrient, effect and causes of internal loads, two sided effects of high nitrate loads and even carbon sequestering or greenhouse gases release. Cyanobacteria growth, occurrence and behavior in impoundments defy the traditional mass balance lake models by Vollenweider and others and new modeling methodologies are being developed. Several cases will illustrate the dilemma, including the stratified Svihov, Orlik and Brno Reservoirs in the Czech Republic, and shallow Lakes Taihu and Donghu in China and Okeechobee in Florida. These impoundments are receiving excessive nutrient loads from nonpoint agricultural and point municipal and industrial sources. However, not all water bodies overloaded by nutrients have developed a full hypertrophic status. The barriers attenuating excessive nutrient loads include agricultural and urban best management practices, buffer zones, restoration and creation of wetlands in conjunction with better agronomy of crops and fertilizer application in agriculture and integrated water, stormwater and used water management in urban areas. Simultaneous anaerobic decomposition of organic matter and nitrate denitrification in restored alluvial riparian buffer wetlands reduce also greenhouse gas emissions of methane and nitrous oxide. Surprisingly, high nitrate content in some impoundments appears to retard or even prevent hyper-eutrophication, which may be the case of the Svihov Reservoir providing water to Prague. The needs for coordinated interdisciplinary research and implementation of remedial plans will be outlined, discussed and developed into a concept of an ecoregion for multiple purpose water bodies and watersheds providing water supply to communities.
2011 Kappe Lecturer: James W. Patterson, Ph.D., BCEEM
2010 Kappe Lecturer: Morton A. Barlaz, Ph.D., P.E., BCEE
2009 Kappe Lecturer: Rao Y. Surampalli, Ph.D., P.E., BCEE, F.AAAS
2008 Kappe Lecturer: Jeanette A. Brown, P.E., BCEE
2007 Kappe Lecturer: Rudy J. Tekippe, Ph.D., P.E., BCEE
2006 Kappe Lecturer: Jerome B. Gilbert, P.E., DEE
2005 Kappe Lecturer: N.C. Vasuki, P.E., DEE


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