Chief Technology Officer Fluid Tech LLC · Sweetwater, Tennessee

Dr. Mark S. Denton

Fifty years of published research on separating what matters from water: from a 1976 chromatography detector to the media used to dewater and decommission the Hanford 105-K West fuel basin. The same scientist, the same problem, one continuous record.

1976 – 2026years publishing
49publications on record
12patents as inventor or co-inventor
24papers summarized in this library
Ph.D. Nuclear chemistry, University of Cincinnati Credentials CHMM · CET · REP
ResearchGate profile (49 publications) Patent portfolio Leadership team
Dr. Mark S. Denton

Chief Technology Officer

01 Timeline

Read it top to bottom. Each stop is a published paper, a patent, or a project documented elsewhere in this library.

1976 – 1992

Early career · analytical and separation chemistry

Instrument design, chromatography, and ion exchange. The separation science that everything after is built on.

  1. 1976First journal paper in Analytical Chemistry: a rapid-scanning UV-visible spectrometer as a liquid-chromatography detector.
  2. 1977Ph.D. in nuclear chemistry, University of Cincinnati. Computer-controlled data acquisition for rapid-scanning chromatography.
  3. 1978 – 1982On-line monitoring of clinical isoenzymes and continuously referenced chemical analysis, published in Clinical Chemistry and patented (1981, 1982).
  4. 1978 – 1982Wastewater disinfection chemistry: effects of chlorine, ozone, and UV on organics in municipal effluents; UV irradiation study in Environment International.
  5. 1983Field instruments for PCBs: a portable PCB monitor and direct infrared determination of PCB in transformer oil.
  6. 1985 – 1987Continuous countercurrent ion exchange (CCIX) with Irwin R. Higgins: uranium extraction from copper leach, and the CCIX chapter in Separation Science and Technology.
  7. 1992U.S. Patent 5,082,570 with Higgins: regenerable inorganic media for selective removal of contaminants from water. The earliest of his patents in this library.
2005 – 2009

Commercial nuclear and Hanford · RWE NUKEM, then EnergySolutions

Volume reduction, outage wastewater, and the first ion-specific media papers.

  1. 2005Hanford scale-dryer verification tests supporting the Demonstration Bulk Vitrification process, with DMJM Technology (WM2005).
  2. 2006 – 2007First ion-specific media papers: media for recalcitrant outage radioisotopes (WM2006), and at ICEM2007 a downselect process for upset conditions and electrocoagulation for BWR colloidal iron.
  3. 2008Dresden demineralizer vault cleanup with Exelon: six years of poorly characterized sludge, 30 feet below the operating floor (WM2008).
  4. 2009SOGIN EUREX spent-fuel-pool cleanup in Italy and a liquid-nitrogen decontamination demonstration, both at WM2009 as EnergySolutions.
2009 – 2015

Fukushima and the isotope-specific platform · Kurion

Characterized inorganic media, modular vitrification, and the seven-week Fukushima deployment.

  1. 2009With Northwestern University chemists Mercouri Kanatzidis and Manolis Manos: a new inorganic media class for selective cesium and strontium removal (WM2009, ICEM2009).
  2. 2010Extensive characterization of inorganic ISM for Co, Cs, Sr, Ni and Tc; pilot-scale Advanced Microwave and Modular Vitrification Systems.
  3. 2011Two vitrification-compatible ISM classes for the Hanford Waste Treatment Plant (WM2011 Paper 11001). After the 11 March accident, bench testing on contaminated seawater and a modular water-treatment system running at Fukushima Daiichi within seven weeks.
  4. 2012 – 2013Fukushima recovery papers: the seven-week deployment, isotope-specific remediation media and systems, and a two-year processing update.
  5. 2014Three peer-reviewed articles in the Journal of Nuclear Science and Technology, including work with CRIEPI; a reactive transport model for media optimization (WM2014); Magnox pond trials in the UK, presented at the EPRI low-level waste conference.
  6. 2009 – 2021The patent portfolio: isotope-specific separation and vitrification, submersible and sluiceable filters, selective media regeneration, multi-vessel systems, and tritium separation (US 10,940,437, 2021).
2022 – today

Fluid Tech · Chief Technology Officer

WTZ® and FHA media on live decommissioning and outage work.

  1. 2022Oak Ridge's independent zeolite evaluation names Fluid Tech's WTZ® 100 as a durable Cs-137 / Sr-90 medium (WM2022 Paper 22292).
  2. 2023Salem Nuclear Station: in a column test on outage water, FHA drives activated cobalt below the plant's discharge limit.
  3. 2024Hanford 105-K West Fuel Basin dewatering and decommissioning completed, with WTZ® 100/200 and FHA capturing Cs, Sr and TRU into shielded modules.
  4. 2026The Hanford 105-KW paper (WM2026 Paper 26259) with James Duncan, Greg Broda and Pete Sauer. Fifty years after the first one.

02 Fluid Tech era · 2022 – 2026

Published work on the media Fluid Tech sells today. Independent evaluations of those media (Oak Ridge 2022, Salem 2023) are in the research section of the library.

  1. 2026Hanford 105K West Fuel Basin Cleanup and DecommissioningMark S. Denton, James Duncan, Greg Broda, Pete Sauer · WM2026 · Paper 26259

03 Fukushima and the isotope-specific platform · 2009 – 2015

Fluid Tech's CTO led media technology at Kurion, Inc. through the Fukushima Daiichi response, the affiliation printed on these papers. They document the isotope-specific media science and the emergency deployment record that Fluid Tech's WTZ® and FHA products are built on. The media in these papers were Kurion's; Fluid Tech's current media are under Ion Exchange Media.

  1. 2014Novel Modular Isotope-Specific Removal Systems Applied to Magnox Pond TrialsM. S. Denton et al. · EPRI International Low Level Waste Conference 2014
  2. 2011Development and Testing of Two Novel and Vitrification-Compatible Classes of Ion-Specific Media for the Hanford Waste Treatment PlantM. S. Denton, W. D. Bostick · WM2011 · Paper 11001
  3. 2014Early Construction and Operation of the Highly Contaminated Water Treatment System in Fukushima Daiichi Nuclear Power Station (II) — Dynamic Characteristics of KURION Media for Cs Removal in Simulated Contaminated WaterTakatoshi Hijikata, Koichi Uozumi, Takeshi Tsukada, Tadafumi Koyama, Ishikawa, Ono, Suzuki, Mark S. Denton, John Raymont · Journal of Nuclear Science and Technology 51(7–8) · June 2014
  4. 2014Characterization and Storage of Radioactive Zeolite WasteIsao Yamagishi, Ryuji Nagaishi, Chiaki Kato, et al. (18 authors; Mark S. Denton is the final author) · Journal of Nuclear Science and Technology 51(7–8) · June 2014
  5. 2014Early Construction and Operation of Highly Contaminated Water Treatment System in Fukushima Daiichi Nuclear Power Station (I) — Ion Exchange Properties of KURION Herschelite in Simulating Contaminated WaterTakeshi Tsukada, Koichi Uozumi, Takatoshi Hijikata, Tadafumi Koyama, Ishikawa, Ono, Suzuki, Mark S. Denton, Rich Keenan, Gaëtan Bonhomme · Journal of Nuclear Science and Technology 51(7–8) · June 2014
  6. 2014Development of a Reactive Transport Model for the Optimization of Ion Specific Media Used at the Fukushima Dai-ichi Nuclear Power PlantJoshua L. Mertz, Mark S. Denton, Brian Powell, Lawrence C. Murdoch · WM2014 · Paper 14579
  7. 2013Fukushima Two Year Processing UpdateMark S. Denton, Joshua L. Mertz · ASME ICEM2013 · Paper 96341
  8. 2013Isotope Specific Remediation Media and SystemsMark S. Denton, Joshua L. Mertz (Kurion, Inc.), Keisuke Morita (JAEA) · WM2013 · Paper 13614
  9. 2012Fukushima Nuclear Crisis Recovery: A Modular Water Treatment System Deployed in Seven WeeksMark S. Denton, Joshua L. Mertz, William D. Bostick · WM2012 · Paper 12489
  10. 2011R&D Back-ups for Design and Operation of the Kurion Media System for Early Construction of the Contaminated Water Treatment System in Fukushima Daiichi Nuclear Power StationTadafumi Koyama, Takeshi Tsukada, Takatoshi Hijikata, Koichi Uozumi, Kenta Inagaki, Yasushi Nauchi, Keiji Ishikawa, Shoichi Ono, Shunichi Suzuki, Mark S. Denton, John Raymont, Richard Keenan, Gaetan Bonhomme · GLOBAL 2011 · December 2011
  11. 2011Readily Available Experience, Technologies, Media, Modular Equipment and Rapid Deployment During a Nuclear CrisisMark S. Denton, Joshua L. Mertz, William D. Bostick · Conference presentation · December 2011
  12. 2011Recent Developments in a Transformative Technology for the Treatment of Nuclear Waste: Modular Vitrification SystemMark S. Denton, Gaetan Bonhomme · WM2011 · Paper 11396
  13. 2011Bench-Scale Treatability Testing in Support of Fukushima Accident Stabilization and Recovery ActivitiesWilliam D. Bostick, Mark S. Denton, Joshua L. Mertz · Conference presentation · 2011
  14. 2010Extensive Characterization of Novel Classes of Inorganic Ion Specific Media Designed for Highly Selective Removal of Salient Liquid Waste Radionuclides: Co, Cs, Sr, Ni and TcGaetan Bonhomme, William D. Bostick, Mark S. Denton · WM2010 · Paper 10251
  15. 2010New Developments in Advanced Stabilization Technologies Including the Advanced Microwave System and Modular Vitrification SystemMark S. Denton · WM2010 · Paper 10279
  16. 2009Innovative Highly Selective Removal of Cesium and Strontium Utilizing a Newly Developed Class of Inorganic Ion Specific MediaMark S. Denton (Kurion, Inc.); Mercouri G. Kanatzidis, Manolis Manos (Northwestern University) · WM2009 · Paper 9267 and ASME ICEM2009 · Paper 16221

04 Commercial nuclear and Hanford · 2005 – 2009

Outage wastewater, volume reduction, fuel-pool decommissioning, and the first ion-specific media papers. The papers list Dr. Denton with RWE NUKEM Corporation (2005 to 2007) and EnergySolutions (2008 to 2009).

  1. 2009Innovative D&D Technology Utilizing High Pressure Liquid Nitrogen for Scabbling, Cutting & DecontaminationRon Warnecke, Mark S. Denton · WM2009 · Paper 9045
  2. 2009SOGIN Enriched Uranium Extraction (EUREX) Plant Spent Fuel Pool Cleaning and Decontamination Utilizing the SMART™ SAFE™ SolutionMark S. Denton (EnergySolutions); Michele Gili, Marco Nasta, Romina Quintiliani, Giuseppe Caccia (Sogin SpA); Werner Botzem (NUKEM Technologies); Kent Forrester (EnergySolutions) · WM2009 · Paper 9317
  3. 2008New Generation Dresden NPP Demineralizer Vault Cleanup ProjectMark S. Denton, Kent Forrester (EnergySolutions); Miguel Azar, Tom Britt (Exelon Nuclear) · WM2008 · Paper 8377
  4. 2007Downselect Ion Specific Media (ISM) Utilization in Upset and Outage ConditionsMark S. Denton, William D. Bostick · ASME ICEM2007 · Paper 7187
  5. 2007New Innovative Electrocoagulation (EC) Treatment Technology for BWR Colloidal Iron Utilizing the Seeding and Filtration Electronically (SAFET™) SystemMark S. Denton, William D. Bostick · ASME ICEM2007 · Paper 7186
  6. 2006New Innovations in Highly Ion Specific Media for Recalcitrant Wastestream RadioisotopesMark S. Denton, James Wilson, Matthew Ahrendt (RWE NUKEM); William D. Bostick (MCL); Frank DeSilva, Peter Meyers (ResinTech) · WM2006 · Session 10
  7. 2005Scale Dryer Verification Test Results Used to Select a Processing Approach Supporting Hanford Site Demonstration Bulk Vitrification System Low-Activity Waste Supplemental TreatmentKaryn D. Wiemers (DMJM Technology), Mark S. Denton (RWE NUKEM), Kurt McCracken, Chrysoula M. Nigl (DMJM Technology) · WM2005 · Session 47

05 Early career · 1976 – 1992

Analytical instrumentation, chromatography, wastewater disinfection chemistry, PCB field monitoring, and continuous countercurrent ion exchange. Listed for the record; these are the separation-science roots of everything above.

  1. 1992Regenerable Inorganic Media for the Selective Removal of Contaminants from Water SourcesU.S. Patent 5,082,570 (Higgins & Denton)
  2. 1987CSA Continuous Countercurrent Ion Exchange (CCIX) TechnologyM. S. Denton, I. R. Higgins · Book chapter, Separation Science and Technology
  3. 1985Extraction of Uranium from Cu Leach by CCIXM. S. Denton, I. R. Higgins · Conference paper
  4. 1983Development of a Portable Field Monitor for PCBsW. D. Bostick, M. S. Denton, S. R. Dinsmore · Article
  5. 1983Direct Infrared Determination of PCB in Transformer OilW. D. Bostick, W. H. McCulla, S. R. Dinsmore, M. S. Denton · Article (undated in source)
  6. 1982Ultraviolet Irradiation of Municipal Wastewater: Evaluation of Effects on Organic ConstituentsN. E. Lee, R. L. Jolley, M. S. Denton, J. E. Thompson · Environment International
  7. 1982Continuous Monitoring, Automated Analysis, and Sampling Procedures (Nature and Analysis of Chemical Species in Water Systems)W. W. Pitt Jr., M. S. Denton · Literature review
  8. 1980Liquid-Chromatographic Separation and On-Line Bioluminescence Detection of Creatine Kinase IsoenzymesW. D. Bostick, M. S. Denton, S. R. Dinsmore · Clinical Chemistry (two companion articles, May and June 1980)
  9. 1980Open-Pore Polyurethane as a Medium for Coal Conversion Process Aqueous Effluent CleanupM. S. Denton, S. R. Dinsmore, J. I. Brand, F. L. Ball, et al. · Separation Science and Technology
  10. 1980Bioluminescence Methods for Enzymatic DeterminationsW. D. Bostick, M. S. Denton, S. R. Dinsmore · Article (undated in source)
  11. 1981Method and Apparatus for Continuously Referenced Analysis of Reactive Components in SolutionW. D. Bostick, M. S. Denton, S. R. Dinsmore · U.S. Patent 4,263,406 · April 21, 1981
  12. 1982Bioluminescence Monitor and Method for Enzymatic DeterminationsW. D. Bostick, M. S. Denton, S. R. Dinsmore · U.S. Patent 4,357,420 · November 2, 1982
  13. 1979New Developments in On-Line Isoenzyme Monitoring for Use in Clinical DiagnosticsW. D. Bostick, M. S. Denton, S. R. Dinsmore · Conference paper
  14. 1978Effects of Chlorine, Ozone, and Ultraviolet Light on Nonvolatile Organics in Wastewater EffluentsR. L. Jolley, W. L. Lee, W. W. Pitt, M. S. Denton, et al. · Conference paper (also published as an article)
  15. 1978Chromatographic Separation and Continuously Referenced, On-Line Monitoring of Creatine Kinase Isoenzymes by Use of an Immobilized-Enzyme MicroreactorM. S. Denton, W. D. Bostick, S. R. Dinsmore, J. E. Mrochek · Clinical Chemistry
  16. 1978Characterization of the Ion-Exchange Membrane Detector for Liquid Chromatography and Its Application to the Separation of Quaternary Ammonium CompoundsJ. G. Dorsey, M. S. Denton, T. W. Gilbert · Analytical Chemistry
  17. 1977Computer Control of Data Acquisition, Reduction, and Display in Rapid Scanning Liquid ChromatographyM. S. Denton, B. A. Jezl, W. R. Heineman, H. B. Mark Jr. · Journal of Chemical Information and Computer Sciences
  18. 1977Ph.D. Dissertation, University of CincinnatiM. S. Denton · Doctoral dissertation (nuclear chemistry)
  19. 1976Oscillating Mirror Rapid Scanning Ultraviolet-Visible Spectrometer as a Detector for Liquid ChromatographyM. S. Denton, T. P. DeAngelis, A. M. Yacynych, T. W. Gilbert, et al. · Analytical Chemistry

06 Patents

Dr. Denton is the inventor or co-inventor of twelve patents, covering isotope-specific separation and vitrification, submersible and sluiceable filtration, selective media regeneration, multi-vessel systems, microwave vitrification, mobile isotope removal, tritium separation, and the 1992 regenerable-media origin patent. Plain-language summaries of each, linked to the public record, are in the patent section of the Technical Library.

07 Related

Technical Library Hanford 105-KW Case Study Salem Cobalt Removal (2023) Ion Exchange Media Consulting Services

Publication list compiled from Dr. Denton's ResearchGate record (June 2026) and checked against WM Symposia proceedings and journal records. Summaries on linked pages are written from published abstracts and reproduce no proprietary data. Publication, testing, or permitting by a government laboratory, contractor, or agency does not constitute endorsement of any commercial product.