OPERATING METHOD FOR ORGANIC WASTEWATER TREATMENT DEVICE AND ORGANIC WASTEWATER TREATMENT DEVICE

• Main Authors: MORITA, Yukako, OKAJIMA, Yasunobu, OHTSUKA, Yuji
• Format: Patent
• Language: English; French; German
• Published: 03.02.2016
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

A method for operating an organic wastewater treatment apparatus, and an organic wastewater treatment apparatus in which a plurality of membrane separation devices are immersed in a treatment tank are provided. By adjusting an amount of air diffusion or a flow rate of permeated liquid based on an actual state of the water to be treated inside the treatment tank, it is possible to effectively avoid fouling of the entire membrane separation device. The operation method operates an organic wastewater treatment apparatus in which the treatment tank (4b) is provided with a plurality of membrane separation devices (6) immersed therein. The treatment tank (4b) is divided into a plurality of regions (R1~R4) and an amount of air diffusion and/or a flow rate of permeated liquid are/is set for each of the membrane separation devices (6) immersed in a corresponding region, based on a measured value of a sludge characteristics measuring means (S1~S4) disposed in the corresponding region (R1~R4).