UMD Theses and Dissertations

Permanent URI for this collectionhttp://hdl.handle.net/1903/3

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a given thesis/dissertation in DRUM.

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Author: search.filters.author.Gleason, David JacobSubject: search.filters.subject.stormwater

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    FIELD-SCALE OPTIMIZATION AND EVALUATION OF A RECYCLED-MATERIALS BASED STORMWATER TREATMENT TECHNIQUE
    (2013) Gleason, David Jacob; Davis, Allen P; Civil Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    This research project evaluates and enhances a novel stormwater control measure for heavy metals called the Biomat. The water quality effects of Biomat treatment on a field scale were examined. Dissolved Pb and Cu were major contaminants, found in roof runoff at mean values of 2.7 mg/L Pb and 0.8 mg/L Cu at the research site. Biomat treatment reduced concentrations to mean values of 30 mcg/L Pb and 13 mcg/L Cu. Results indicate that an approximate steady-state concentration was reached for dissolved metals. This concentration appears to result from equilibrium between native metals on the media and metals dissolved in stormwater. Water quality results from a second site where influent metals concentrations were significantly lower (mean influent Pb at 15 mcg/L, Cu at 9 mcg/L) supported this hypothesis. Further water quality improvement was achieved with an additional aluminum-based water treatment residual and sand media, focusing on phosphorous.