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DOI : ,    Vol.3, No.2, 43 ~ 57, 1995
Title
A Feasibility Study on the Using of W.T.P.'s Alum Sludge with Agricultural Materials
김영한Young Han Kim,장기운Ki Woon Chang
Abstract
Recently, needs for utilization of sludge from water treatment plants(alum sludge) have been increased with shortage of landfill sites and difficulties of the treatment and disposal processes. In this study, the properties of the alum sludge were investigated in the laboratory and field tests, and the feasibility studies for using of W.T.P.`s alum sludge with agricultural materials were also investigated. And composting alum sludge with sewage sludge and saw dust were investigated. The major components of alum sludge were SiO₂(15-55%), Al₂O₃(19-36%), Fe₂O₃(2-6%), and several elements like agricultural soils. The raw alum sludge and composted sludge were good for a growth of tested plants and roots of rice-strouts and for anti-insect effects. The interference in the growth of plants which got a little influence from aluminum ions existed in soil was not shown when 2-3㎏/㎡ of sludge were applied to the farm land, and no change in components was shown in the plants compared to the result of fertilization.
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