Browsing Earth and Environmental Sciences by Author "Liu, Peng"
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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 ... -
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 ... -
Stabilization of Mercury in River Water and Sediment Using Biochars
Liu, Peng (University of Waterloo, 2016-11-29)Mercury (Hg) is a common contaminant in air, oceans, lakes, rivers, soils, and sediments as elemental, inorganic and organic forms. Organic Hg (e.g., methylmercury (MeHg)), which is much more toxic than other forms and can ...