Abstract
The three kinds of experiments using garbage disposer wastewater were performed to measure their physical and chemical characteristics for wastewater treatment: (1) settling test of suspended solids; (2) characterization of organic matters; and (3) thickening test of sludge. Settling test showed that the about 65-75% of suspended solids could be treated in the primary settler. Characterization of organic matters indicated that about 85% of organic matters in garbage disposer wastewater was slowly biodegradable, and that non-bio-degradable portion was little. Thickening test showed that settling velocity was controlled mainly by the concentration of primary sludge.