WebMay 11, 2016 · Gravity drainage — Stormwater simply drains off the roof and other areas to the ground. Stormwater flows away from the building naturally to storm drains or, in some cases, to the street. For most single … WebDec 15, 2013 · Bioswales constructed from native soils may retain water for days at a time if the underlying soils are clay or if drainage is limited by impermeable layers underneath. Newer biofiltration areas engineered for …

Biofiltration / Bioretention Solutions FocalPoint

WebDrainage Area Typically, filter strips treat very small drainage areas such as roads, sidewalks and small parking lots. Although some guidelines include area-based … WebDuring day hours, when greenhouse drainage rate exceeds the biofilter flow rate, the drained solution must be stored in an auxiliary container for later (e.g. night time) … signature smith

Native Plant Selection for Biofilters and Rain Gardens

http://njcat.org/uploads/newDocs/NJCATEcoPure3CellFinal.pdf WebThe biofilters of the series DRBF have been specially designed for the odour elimination and corrosion reduction in roof drain pipes. Especially where rain water and waste water are lead to the same dewatering pipes … http://biofilter-systems.com/ the promotion factory calgary