PROCESS AND APPARATUS FOR METABOLIZING ORGANIC WASTE WATER USING GROWTH LIQUID SLURRY CONTAINING CLAY, SLUDGE, SULFUR BACTERIA, PURPLE SULFUR BACTERIA, AND MIXED STRAIN OF EUGLENA

摘要

PURPOSE:To remove BOD of organic waste water effectively and to metabolize it to feed or fertilizer by treating org. waste water using growth liquid slurry contg. clay, sludge, sulfur bacteria, purple sulfur bacteria, and mixed strain of Euglena as a filter medium and culture base material. CONSTITUTION:1t of swine urine contg. 5,500ppm BOD component is charged to a storage tank 1, and 1t growth liquid comprising sulfur bacteria, purple sulfur bacteria, mixed strain of Euglena is inoculated and cultivation is carried out at 15-32 deg.C for 5 days. A slurry mixture consisting of sludge and waste clay in 2:8 proportion is filled in a transparent vertical cultivation tank 2, 3, 4, 5. Filtration membranes 11, 12, 13, 14 are attached to the tanks; 0.5t filthy water comprising swine urine contg. 2,500ppm BOD component is fed every day from a filthy water feeding port 39, and treated water contg. 15ppm BOD component is obtd. Growth liquid contg. sulfur bacteria, purple sulfur bacteria, and mixed strain of Euglena is fed from the transparent vertical cultivation tank 2 to a fermentation tank 37 using a liquid feeding pump 23 and a valve 36. slime bacteria and yeast are inoculated after adding saccharide and fermentation is performed.