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환선진,김상철,장현섭 경희대학교 2004 環境硏究 論文集 Vol.13 No.-
The effective removal of sewage sludge is very wmportant, due to a lot of generation, environmental hai mful effects. This study was carried out to be effective pretreatment of cell rupture. The purpose of sludge pretreatment in this study was that microorganism cell walls of sewage sludge were ruptured by biochemical and mechanical treatment for sewage sludge reduction. the soluble chemical oxygen demand and solubility of sewage sludge gradually were increased with SDS, lysozyme and EDTA dose. Also treatment of combined lysozyme with SDS or EDTA more increase of SCOD concentration than singy' treatment method. The sludge cells and floc were disrupted by homogenizer and biochemical pretreatment resulting in the increase of SCOD concentration and microscopic observation. We have observed that higher solubility of sewage sludge cloud be obtained through pretreatment of combination homogenizer with enzyme.