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Browse Past Research Projects -- Illinois Sustainable Technology Center by Title

  • (Champaign, IL : Illinois Sustainable Technology Center, 2015-11)
    Describes an ISTC project that evaluated the use of anaerobic digestate from dairy farms as a replacement for peat moss as a plant fertilizer for the horticulture industry.

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  • Rajagopalan, Nandakishore; Wentz, J.E.; Kapoor, S.G.; DeVor, R.E. (Champaign, IL : Illinois Sustainable Technology Center, 2006)
    Microfiltration can increase the service life of metalworking fluid by removing contaminants. However, membranes quickly become clogged, a process known as fouling. Anti-fouling methods in practice in the mid-2000s involved ...

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  • Eppert, Joseph J.; DeVor, Richard E.; Kapoor, Shiv G.; Rajagopalan, Nandakishore (Champaign, IL : Illinois Sustainable Technology Center, 2003)
    Some metalworking fluids are designed to coat the surfaces of newly machined metal with rust inhibitors. At some point, these inhibitors are expected to become depleted in the metalworking fluid. How quickly does this ...

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  • Rajagopalan, Nandakishore; Lindsey, Tim; Skerlos, Steven J. (Champaign, IL : Illinois Sustainable Technology Center, 2001)
    The use of ultrafiltration (UF) applications with alkaline cleaners was a common practice as of 2001, but at the time UF was still susceptible to fouling and stripping out active agents from the cleaners. ISTC’s Kishore ...

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  • Rajagopalan, Nandakishore; Menniti, Adrienne; Kramer, Timothy A.; Clark, Mark M. (Champaign, IL : Illinois Sustainable Technology Center, 2005)
    Metalworking fluids are used for cooling, lubrication, and corrosion control in the metal products industry. As of the mid-2000s, many manufacturers were using filtration or centrifugal systems to remove impurities from ...

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  • Wentz, John E.; Kapoor, Shiv G.; DeVor, Richard E.; Rajagopalan, Nandakishore; Gilmer, Jessica; Eppert, J.J. (Champaign, IL : Illinois Sustainable Technology Center, 2007)
    It was initially thought that no metalworking fluid could be developed to meet industry specifications and be compatible with membranes to use microfiltration to remove contaminants. However, Rajagopalan’s team developed ...

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  • Rajagopalan, Nandakishore; Greeley, M. (Champaign, IL : Illinois Sustainable Technology Center, 2003)
    Kishore Rajagopalan and his colleague explored how contaminants like tramp oils and salts impact the productivity of recycled metalworking fluids. They found that metalworking fluids had no losses in cooling and lubricating ...

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  • Rajagopalan, Nandakishore; Skerlos, Steven J.; DeVor, Richard E.; Kapoor, Shiv G.; Angspatt, V. Don (Champaign, IL : Illinois Sustainable Technology Center, 1999)
    A ceramic membrane filtration system can be an effective tool to increase the lifespan of medalworking fluids and reduce biological hazards. However, the usefulness of the membranes may be reduced by different additives ...

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  • Eppert, Joseph J.; Rajagopalan, Nandakishore; DeVor, Richard E.; Kapoor, Shiv G. (Champaign, IL : Illinois Sustainable Technology Center, 2003)
    Metalworking fluids are designed to perform specified tasks in the factory. However, these fluids can become contaminated during the manufacturing process by other factory components such as tramp oil. As more and more ...

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  • Wentz, John E.; Kapoor, Shiv G.; DeVor, Richard E.; Rajagopalan, Nandakishore (Champaign, IL : Illinois Sustainable Technology Center, 2008)
    ISTC’s Kishore Rajagopalan and colleagues from the University of Illinois discovered that partial blocking of pore spaces from microemulsion aggregation was a new fouling mechanism leading to total pore space blocking and ...

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  • Rajagopalan, Nandakishore; Rusk, Todd; Dianovsky, Michael (Champaign, IL : Illinois Sustainable Technology Center, 2004)
    Since the early 2000s, industries have faced rising costs to acquire, manage, and dispose of metalworking fluids, as well as increased concern about pathogenic bacteria growing in metalworking processes. The need to reduce ...

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  • Rajagopalan, Nandakishore; Deluhery, Jennifer (Champaign, IL : Illinois Sustainable Technology Center, 2005)
    Metalworking fluids are an emulsion of oil in water. The emulsion stability goes down with increased harness ions such as calcium and magnesium. Typical tests for emulsion stability involve the determination of oil losses ...

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  • Zheng, Wei; Sharma, B.K.; Rajagopalan, Nandakishore (2010-12)
    Biochar is a charred carbon-enriched material intended to be used as a soil amendment to sequester carbon and enhance soil quality. Sustainable biochar is produced from waste biomass using modern thermochemcial technologies. ...

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  • Rajagopalan, Nandakishore; Chandrasekaran, Sriraam R. (Champaign, IL : Illinois Sustainable Technology Center, 2016)
    The U.S. Forestry Service (USFS) engaged sustainability experts at the University of Illinois, Western Illinois University (WIU), and the Metropolitan Mayors Caucus to investigate the use of wood waste by businesses as a ...

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