Premium
Sorption Media for Stormwater Treatment—A Laboratory Evaluation of Five Low‐Cost Media for Their Ability to Remove Metals and Phosphorus from Artificial Stormwater
Author(s) -
WiumAndersen Tove,
Nielsen Asbjørn H.,
HvitvedJacobsen Thorkild,
Kristensen Niels Krogh,
Brix Hans,
Arias Carlos,
Vollertsen Jes
Publication year - 2012
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143012x13373550426832
Subject(s) - sorption , sorbent , stormwater , cadmium , adsorption , phosphorus , chemistry , environmental chemistry , waste management , environmental engineering , materials science , environmental science , surface runoff , metallurgy , ecology , organic chemistry , engineering , biology
Five sorption materials were studied with a 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 for 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 1 hour. The study indicated that sorption filters can be designed for long life expectancy at comparatively low cost by applying the materials tested.