WASTEWATER TREATMENT APPARATUS CAPABLE OF PERFORMING BOTH INITIAL RAINWATER OVERFLOW TREATMENT AND PRIMARY TREATMENT, AND WASTEWATER TREATMENT METHOD ACCORDING TO SAID APPARATUS

摘要

The present invention relates to a wastewater treatment apparatus capable of performing both an initial rainwater overflow treatment and a primary treatment, as well as to a wastewater treatment method according to the apparatus, wherein the apparatus is capable of performing both a primary treatment and an initial rainwater treatment by modifying an existing primary depositing reservoir to an up-flow high-speed filtration facility, wherein the apparatus may use a floating filter and biological filter paper applied to an existing depositing reservoir so as to perform an initial rainwater treatment, thus consistently obtaining treated water even when flow rate and load change, wherein the apparatus is capable of being applied to an existing wastewater treatment facility to thereby eliminate the necessity of installing an additional facility for introducing an initial rainwater treatment facility, the apparatus further being capable of adjusting the flow rate into a biological treatment facility to thus achieve a target water quality. The apparatus comprises: an up-flow high-speed filtration facility for filtering the floating matter contained in wastewater using a floating filter; a sludge reservoir; a biological treatment facility for removing dissolved organic matter contained in the water discharged from the up-flow high-speed filtration facility; and a concentrator.