Browsing Earth and Environmental Sciences by Author "Ptacek, Carol J."
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Control of mercury and methylmercury in contaminated sediments using biochars: A long-term microcosm study
Liu, Peng; Ptacek, Carol J.; Blowes, David W.; Gould, W. Douglas (Elsevier, 2018-05-01)The effectiveness of activated carbon and four types of biochar, switchgrass (300 °C and 600 °C), poultry manure (600 °C), and oak (∼700 °C) with respect to mercury (Hg) and methylmercury (MeHg) control was assessed in ... -
Data on removal kinetics of pharmaceutical compounds, artificial sweeteners, and perfluoroalkyl substances from water using a passive treatment system containing zero-valent iron and biochar
Liu, YingYing; Blowes, David W.; Ptacek, Carol J. (Elsevier, 2019-12)The data presented in this paper relate to the research paper “Removal of pharmaceutical compounds, artificial sweeteners, and perfluoroalkyl substances from water using a passive treatment system containing zero-valent ... -
Effect of composting and amendment with biochar and woodchips on the fate and leachability of pharmaceuticals in biosolids destined for land application
Liu, YingYing; Ptacek, Carol J.; Beauchemin, Suzanne; MacKinnon, Ted; Blowes, David W. (Elsevier, 2022-03)Land application of biosolids can improve soil fertility and enhance crop production. However, the occurrence and persistence of pharmaceutical compounds in the biosolids may result in leaching of these contaminants to ... -
Evaluation of mercury stabilization mechanisms by sulfurized biochars determined using X-ray absorption spectroscopy
Liu, Peng; Ptacek, Carol J.; Elena, Krista M. A.; Blowes, David W.; Gould, W. Douglas; Finfrock, Y. Zou; Wang, Alana O.; Landis, Richard C. (Elsevier, 2018-04-05)The application of biochar to treat mercury (Hg) in the environment is being proposed on an increasing basis due to its widespread availability and cost effectiveness. However, the efficiency of Hg removal by biochars is ... -
Mercury distribution and speciation in biochar particles reacted with contaminated sediment up to 1030days: A synchrotron- based study
Liu, Peng; Ptacek, Carol J; Blowes, David W; Finfrock, Y. Zou (Elsevier, 2019-04-20)A previous long-term microcosm experiment showed mercury (Hg) in the aqueous phase of contaminated sediment was effectively stabilized through the addition of biochar. The present study focuses on the application of ... -
Removal of pharmaceutical compounds, artificial sweeteners, and perfluoroalkyl substances from water using a passive treatment system containing zero-valent iron and biochar
Liu, YingYing; Blowes, David W.; Ptacek, Carol J.; Groza, Laura G. (Elsevier, 2019-11-15)Emerging contaminants are widely detected and persistent in environmental waters. Advanced oxidation processes are among the most effective methods for removing emerging contaminants from water; however, high energy ...