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Composting using the Lime Stabilization of Dewatering Sludge from Centralized Swine Wastewater Treatment Facility  

Hwang, In-Su (Office of livestock Wastewater Treatment PIant, Sanju city)
Min, Kyung-Sok (Department of Environmental Engineering, Kyungpook National University)
Publication Information
Journal of Korean Society on Water Environment / v.22, no.4, 2006 , pp. 687-694 More about this Journal
Abstract
Dewatering sludge using inorganic chemicals with polymer has been evaded for reuse on account of the risks of high heavy metals contained and soil acidification. Composting feasibility of coagulation & dewatering sludges produced from livestock waste treatment plant was investigated. The results of analysis prove that dewatering sludge is valuable matter with suitable elements for composting if high quality ferric chloride ($FeCl_3$) is used for coagulation & dewatering process. In pot-cultivation of harvestes, using effects of dewatering sludge improved with lime treatment was very effective. The results of pot-cultivation proved that harms of crops according to different acid tolerances were not detected. But it was not applied to crops with weak acid tolerance or greenhouse for free from gas damage. Also, Further studies and monitorings are necessary to use sludges because results of pot-cultivation were generated differently by characteristics of soil, nutrient demand of plants, mature degree of sludge, consecutive cultivation and etc.
Keywords
Composting; Dewatering sludge; Ferric chloride; Lime treatment; Pot-cultivation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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