Phosphorus Removal From Greywater In An
Experimental Hybrid Compact Filter System
Author(s)
K. Kasak, K. Karabelnik, M. Kõiv, P. D. Jenssen
& Ü. Mander
Abstract
The aim of this paper is to analyse phosphorus (P) removal from greywater in an
experimental hybrid compact filter system. The potential of a large number of
substrates for the removal of phosphorus in greywater has been reviewed. These
substrates mainly consist of natural materials, industrial by-products and manmade
products. In this study we analyzed the potential effectiveness of P
removal in different filter materials such as industrial by-products (hydrated
calcareous oil-shale ash from Estonian thermal power plants) and man-made
products (Filtralite® and Filtralite-P®). Household greywater consists of
wastewater from kitchens, showers and laundry facilities. The reduction of total
P in the ash filter system was up to 95%, achieving a median effluent
concentration of 0.56 mg L-1 (median concentration in inflow was 5.1 mg L-1),
compared to the respective figures of 40–44% and 2.8–3.3 mg P L-1 for
Filtralite® systems.
Keywords: constructed wetland, Filtralite, oil-shale ash, phosphorus sorption,
subsurface flow filters.
1 Introduction
Greywater is defined as water that is slightly contaminated by human activities
and may possibly be reused after suitable treatment [1]. Greywater usually
Keywords
constructed wetland, Filtralite, oil-shale ash, phosphorus sorption,
subsurface flow filters
Related Book
Other papers in this volume
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