10.4122/1.1000001137
Seelsaen, N.
N.
Seelsaen
McLaughlan, R.
R.
McLaughlan
Moore, S.
S.
Moore
Ball, J.E.
J.E.
Ball
Stuetz, R. M.
R. M.
Stuetz
Pollutant removal efficiency of alternative filtration media in stormwater treatment
DTU Library, Technical University of Denmark (DTU)
2005
Conference presentation
Stormwater
sorption
compost
recycled material
sand filtration
The University Of New South Wales, Centre For Water
Centre For Water
The University Of New South Wales
The University Of Technology, Infrastructure
Infrastructure
The University Of Technology
The University Of New South Wales, School Of Civil
School Of Civil
The University Of New South Wales
The University Of New South Wales, Water Research Laboratory
Water Research Laboratory
The University Of New South Wales
2005
en
10.4122/1.1000001138
text/xml
ABSTRACT Sorption experiments were used to assess the ability of various materials (sand, compost, packing wood, ash, zeolite, recycled glass and Enviro-media) to remove heavy metal contaminants typically found in stormwater. Compost was found to have the best physicochemical properties for sorption of metal ions (Cu, Zn and Pb) compared to sand, packing wood, ash, zeolite and Enviro-media. The compost sorption of these metal ions conformed to the linear form of the Langmuir adsorption equation with the Langmuir constants (qm) for Zn(II) being 11.2 mg/g at pH 5. However, compost was also found to leach a high concentration of dissolved organic carbon (DOC, 4.31 mg/g), compared to the other tested materials. Various combinations of sand, compost and other materials were observed to have excellent heavy metal removal (75-96% of Zn and 90-93% of Cu), with minimal DOC leaching (0.0013-2.43 mg/g). The sorption efficiency of the different Enviro-media mixes showed that a combination of traditional (sand) and alternative materials can be used as an effective medium for the treatment of dissolved metal contaminants commonly found in stormwater. The application of using recycled organic materials and other waste materials (such as recycled glass) also provides added value to the products life cycle.