TY - JOUR
T1 - Sorption media for stormwater treatment
T2 - A laboratory evaluation of five low-cost media for their ability to remove metals and phosphorous from artificial stormwater
AU - Wium-Andersen, Tove
AU - Nielsen, Asbjørn Haaning
AU - Hvitved-Jacobsen, Thorkild
AU - Kristensen, Niels Krogh
AU - Brix, Hans
AU - Arias, Carlos Alberto
AU - Vollertsen, Jes
PY - 2012/7
Y1 - 2012/7
N2 - Five sorption materials were studied with focus on polishing pretreated stormwater: crushed limestone, shell-sand, zeolite and two granulates of olivine. These materials are commercially available at comparatively low cost and have been subjected to a minimum of modification from their natural states. The sorbents were tested towards phosphorus, arsenic, cadmium, chromium, copper, nickel, lead and zinc at concentration and conditions relevant for typical stormwater. The materials were tested for sorption capacity and kinetics. Desorption was tested under neutral and alkaline conditions and in the presence of chloride. For most sorbent/sorbate combinations, significant sorption occurred within the first minutes of contact between sorbent and sorbate. Treatment to the low microgram per liter range could be achieved by contact times of less than an hour. The study indicated that sorption filters can be designed for long life expectancy at comparatively low cost by applying the materials tested.
AB - Five sorption materials were studied with focus on polishing pretreated stormwater: crushed limestone, shell-sand, zeolite and two granulates of olivine. These materials are commercially available at comparatively low cost and have been subjected to a minimum of modification from their natural states. The sorbents were tested towards phosphorus, arsenic, cadmium, chromium, copper, nickel, lead and zinc at concentration and conditions relevant for typical stormwater. The materials were tested for sorption capacity and kinetics. Desorption was tested under neutral and alkaline conditions and in the presence of chloride. For most sorbent/sorbate combinations, significant sorption occurred within the first minutes of contact between sorbent and sorbate. Treatment to the low microgram per liter range could be achieved by contact times of less than an hour. The study indicated that sorption filters can be designed for long life expectancy at comparatively low cost by applying the materials tested.
KW - Sorption filter
KW - stormwater treatment
KW - sorption kinetics
KW - sorption capacity
KW - sorption isotherm
KW - olivine
KW - shell-sand
KW - zeolite
KW - limestone
UR - http://www.scopus.com/inward/record.url?scp=84864105896&partnerID=8YFLogxK
U2 - 10.2175/106143012X13373550426832
DO - 10.2175/106143012X13373550426832
M3 - Journal article
SN - 1061-4303
VL - 84
SP - 605
EP - 616
JO - Water Environment Research
JF - Water Environment Research
IS - 7
ER -