Nitrogen removal and nitrifying and denitrifying bacteria quantification in a stormwater bioretention system

Evaluation of three vegetation treatments in bioretention gardens in a semi-arid climate

“…This indicates that microbial activity in the upland cell was not likely water limited in August. These patterns indicate that if microbes were indeed driving NO 3 removal, as suggested by previous studies (Bratieres et al, 2008;Brown & Hunt, 2011;Chen et al, 2013;Lucas & Greenway, 2008, 2010, the availability of carbon to soil microbes was likely the mechanism driving the observed difference in NO 3 removal among the three treatments. While primary productivity was not directly measured, leaf area was observed to be much greater in the Wetland treatment than the Upland treatment (Orr, 2013).…”

“…EPA, 2013). Bioretention was first implemented for stormwater control in mesic climates that receive 750 to 2000 mm of annual precipitation, and has been demonstrated to reduce peak flows of stormwater runoff and nutrient loading to receiving waters (BMPDatabase.org, 2012;Bratieres, Fletcher, Deletic, & Zinger, 2008;Chen, Peltier, Sturm, & Young, 2013;Collins et al, 2010;Davis, 2007;Dietz & Clausen, 2005;Hatt, Fletcher, & Deletic, 2009;Hunt, Jarrett, Smith, & Sharkey, 2006;Hunt, Smith, Jadlocki, Hathaway, & Eubanks, 2008;Kim, Seagren, & Davis, 2003;Li & Davis, 2009;Prince George's County, 2002). These systems utilize various designs of media layering and outlet controls to facilitate ecological immobilization of N and P during storm events by vegetation communities (Bratieres et al, 2008;Brown & Hunt, 2011;Davis et al, 2009;Henderson, Greenway, & Phillips, 2006;Hsieh, Davis, & Needelman, 2007a,b;Lucas & Greenway, 2008, 2010.…”

Application of BMP to urban runoff control using SUSTAIN model: Case study in an industrial area

“…However, a single BMP technology (such as bioretention or green roof) discharge would require further treatment (Chen et al, 2013;Czemiel Berndtsson, 2010;Elizabeth, 2012;Deletic and Fletcher, 2006). Therefore, it was very important in the present study to carefully select and combine BMP to meet water quality standards according to the literature.…”

Phosphorus Retention by Fly Ash Amended Filter Media in Aged Bioretention Cells

“…Previous studies conducted on operating BRC sampled three to six core samples with sampling near inlet, outlet and along the centerline of the cell. Jones [39] collected six core samples, Chen [40] collected five core samples, Muerdter [41] collected six core samples, Komlos [42] collected five core samples and Brown [43] collected three core samples from the BRC for their studies.…”