Minergy specializes in the vitrification, or melting, of waste materials. Minergy has successfully commercialized technologies for recycling high-volume wastes, including auto shredder residue, mine tailings, municipal sludge, paper mill sludge, and contaminated sediment and soils, into reusable, inert glass. Minergy’s approach to treating fly ash/bottom ash, contaminated soils, sediments and sludges is to focus on the glass formation process, recognizing that an ancillary benefit of the process’s high temperature and residence time effectively destroys organic contaminants and produces an inert, usable product. Converting wastes into glass aggregate through the process of vitrification provides a permanent disposal solution while eliminating future liabilities. Minergy’s vitrification technologies meet today’s challenge of implementing innovative waste treatment by providing acceptable levels of treatment in a cost-effective manner. Minergy’s award winning process enhances our air and land quality. Minergy enhances our earth’s potential by conserving precious resources. Every year, the Fox Valley Aggregate Plant in Neenah, Wis., U.S.A., saves more than 10 acres of land that would otherwise be used for disposal of paper mill sludge. Minergy offers industry and the public a superior solution to the disposal of paper mill sludge. We also pledge our commitment to conserving precious resources for everyone to enjoy … today and tomorrow. Minergy’s alternative provides a sucessful recycling technology that turns paper mill sludge into viable construction products while creating renewable energy. Minergy offers a way to recycle materials that have never been recycled before into inert products that do not negatively impact the environment. Minergy Corp. has developed and commercialized several vitrification technologies for the recycling of such high volume wastes as municipal biosolids, industrial sludges, and contaminated sediment and soils. These technologies perform mineral recovery from the waste material, converting them into construction material and industrial feed stocks which are inert, marketable products. With a continuously operating processing system installed at the waste source, vitrification provides a sustainable management alternative by reducing handling, eliminating downstream liabilities, reducing or eliminating disposal costs, and, in the right situations, can offset other energy demands. The Glass Aggregate Technology is a mineral recovery process that melts the mineral content of sludge, using a high temperature furnace. Glass Aggregate Technology is Minergy’s initial vitrification technology and has been in commercial operation since 1998 at the Fox Valley Energy Center, previously Minergy’s Fox Valley Glass Aggregate Plant (FVGAP). At the heart of the technology are two (2) 7-foot-diameter cyclone furnaces in which sludge is co-fired with auxiliary fuel (coal or natural gas) and ambient air. The technology features two significant modifications to the standard cyclone furnace design:

Over the past 11 years, Minergy have successful processed 50 different waste streams including coal and municipal solid waste incineration fly ash, municipal solid waste incineration bottom ash, municipal biosolids, auto shredder residuals, manufactured gas plant remediation waste, biomass fuel waste, contaminated river sediment, paper mill sludge, chemical plant wastewater sludge and paint sludge. Minergy plants typically have a capacity to process 100 – 2,000 tonnes of waste per day. This could be satisfied by a single type of waste from multiple customers, or it could be provided by mixing 2 – 3 different waste streams which have some similarity in their composition, such as fly ash and auto shredder residuals. The amount of energy produced by a Minergy plant is dependent on the energy potential of the feedstock supplied to the plant. High energy feedstocks, such as paint sludge, can produce significant amounts of energy. Low energy feedstocks, such as contaminated river sediment, produce almost no excess energy. Glass aggregate production is dependent on the amount of inorganic materials contained in the feedstock.