▎ 摘　　要

NOVELTY - Preparing graphene polyaniline modified carbon cloth electrode material involves adding graphene oxide in water, and placing in ultrasonic cleaning machine and ice bath for 2-2 hours to obtain oxide graphene slurry. The hydrophilic carbon cloth is soaked in acetone, washed with distilled water and dried to obtain carbon cloth. The clean carbon cloth is dispersed in an aqueous solution of sodium dodecyl sulfate and sonicated for 2-2.5 hours, obtained oxidized graphene slurry is added into it and subjected to ultrasonic treatment for 0.5-1 hour to obtain treated cloth. USE - Method for preparing graphene polyaniline modified carbon cloth electrode material for accelerating anode (claimed) and used in waste water treatment. DETAILED DESCRIPTION - Preparing graphene polyaniline modified carbon cloth electrode material involves adding graphene oxide in water, and placing in ultrasonic cleaning machine and ice bath for 2-2 hours to obtain oxide graphene slurry. The hydrophilic carbon cloth is soaked in acetone, washed with distilled water and dried to obtain carbon cloth. The clean carbon cloth is dispersed in an aqueous solution of sodium dodecyl sulfate and sonicated for 2-2.5 hours, obtained oxidized graphene slurry is added into it and subjected to ultrasonic treatment for 0.5-1 hour to obtain treated cloth. The carbon cloth is removed from slurry, placed in filter bed and its two surfaces are loaded with graphene oxide in an amount of 0.4-0.5mg per square centimeter of carbon cloth. The cloth surface is washed with deionized water to remove reagent and then air dried. The carbon cloth loaded with graphene oxide is immersed in sodium borohydride solution for soaking, and rinsed with deionized water and dried in vacuum oven to obtain carbon cloth loaded with graphene. The curing agent is prepared by using 2-2.5mol/L ammonium sulfate, 30-35mmol/L aniline and 1-1.2mol/L perchloric acid, and is cooled to 0-5 degrees C. The monomer solution is placed at 0-5 degrees C in ice water bath, and carbon cloth is immersed in the monomer solution, where ethanol is added to prevent solution from freezing and nitrogen gas is passed to it, stirred, pre-cooled curing agent is added dropwise and subjected to polymerization for 7-10 hours. The carbon cloth is removed, washed with deionized water, and subjected to vacuum drying, to obtain final material. An INDEPENDENT CLAIM is included for a method for accelerating anode, which involves: (A) constructing bioelectrochemical system reactor, which comprises groove body, cation exchange membrane, carbon brush electrode and graphene polyaniline modified carbon cloth electrode, dividing bioelectrochemical system reactor into cathode chamber and anode chamber, placing carbon brush electrode on cathode in cathode chamber, placing graphene polyaniline modified carbon cloth electrode at one end of anode chamber, and inserting saturated calomel electrode into anode chamber; (B) connecting carbon brush electrode with graphene polyaniline modified carbon cloth electrode through a resistor to form a closed circuit, providing first voltage test device for monitoring output potential V1 at both ends of resistor, connecting graphene polyaniline modified carbon cloth electrode and the saturated calomel electrode to monitor the potential V2 of the anode, and using data recorder for recording data, and then detecting potential V1 and V2 by the voltage test device; (C) starting bioelectrochemical system reactor, adding 100mM potassium ferricyanide solution to cathode chamber, adding mixture of anaerobic culture medium and sludge to anode chamber according to volume ratio of the sludge to the anaerobic culture medium, mixing mixture with nitrogen for 15-20 minutes, and changing potential of first and second monitoring voltage measuring device and recording data by data logger; and (D) operating bioelectrochemical system reactor by observing two output voltage change in system, and when system output potential V1 is below 0.05V then anode indoor material is replaced, mixing sludge and anaerobic medium in volume ratio of 1:(5-10) and then continuously replacing anode indoor material twice until the observed system output potential V1 and V2 shows a steady change trend and biological anode domestication is completed.