TREATMENT METHOD OF ORGANIC WASTE LIQUID OF HIGH CONCENTRATION, CIRCULATION TREATMENT METHOD OF ORGANIC WASTE LIQUID AND CIRCULATING TREATMENT APPARATUS THEREFOR

摘要

PPROBLEM TO BE SOLVED: To provide a treatment method of an organic waste liquid of high concentration for effectively subjecting an organic waste liquid of high concentration such as various domestic wastewaters, agricultural wastewater, livestock wastewater and the like to biological treatment, capable of recycling the organic waste liquid of high concentration as resources to effectively utilize the same in order to realize resource circulating society and also excellent in economical efficiency, a circulation treatment method of the organic waste liquid of high concentration and a circulation treatment apparatus therefor. PSOLUTION: The circulation treatment apparatus of the organic waste liquid of high concentration is provided with at least a dilution tank 4 for diluting the organic waste liquid of high concentration, a culture tank 5 for culturing autotrophs such as bonded algae or the like and the flow speed adjusting tank 6 communicating with the culture tank 5 and constituted as a circulation type which supplies the organic waste liquid diluted up to the optimum culture concentration by the dilution tank 4 to the culture tank 5, a low and stable flow speed environment is formed in the vertical direction in the culture tank 5 by adjusting the flow speed of the water level in the flow speed adjusting tank 6 and treated water biologically treated with efficiently propagated autotrophs is supplied to the previous process. PCOPYRIGHT: (C)2005,JPO&NCIPI