Substrates for phosphorus removal-potential benefits for on-site wastewater treatment?
A large number of substrates potential for removal of phosphorus (P) in wastewater has been reviewed. The substrates consist of natural materials, industrial by-products and man-made products. Most substrates have been investigated in batch and column studies in the laboratory; others have also been tested in field trials. The results from these investigations vary, but a few substrates, e.g. wollastonite, slag material and, to some extent, light weight aggregate products, have demonstrated promising properties with regard to P-sorption capacity and hydraulics. The problems of normalisation of data are discussed, as well as the substrates potential benefits for on-site wastewater treatment.
Johansson Westholm
Lena
L
Department of Public Technology, Mälardalen University, P.O. Box 883, SE-721 23 Västerås, Sweden. lena.johansson.westholm@mdh.se
D003247:Conservation of Natural Resources; D005374:Filtration; D019015:Geologic Sediments; D008420:Manufactured Materials; D008903:Minerals; D010758:Phosphorus / Q000302:isolation & purification*; D014865:Waste Disposal, Fluid / Q000379:methods*
D008903:Minerals; D010758:Phosphorus