BIOELECTROCHEMICAL TREATMENT OF DYEING WASTEWATER

摘要

PURPOSE: To environmental-friendly treating nonbiodegradable chemicals such as polyvinyl alcohols in dyeing wastewater, PVA-MX (KFCC-1151) that is isolated from soil is injected into an electrochemical reactor where electric current flows from anode to cathode between two carbon electrodes and its hydrogen-ion concentration is adjusted to pH 6.5-7. CONSTITUTION: For bioelectrochemical treatment of dyeing wastewater, a reactor is provided with two carbon electrodes one of which is cathode and the other of which is anode. Electric current ranging from 2 to 3V flows from a positive electrode to a negative electrode so the hydrogen-ion concentration of the reactor is controlled to pH 6.5-7. Herein, PVA-MX (KFCC-1151) that is isolated from soil is injected to eliminate nonbiodegradable chemicals. The PVA-MX (KFCC-1151) is preferably injected into the reactor being blended with polyvinyl alcohols, enzyme extracts, trace mineral stock solution and phosphate buffer solution.