Method for treating industrial wastewater by using MBBR (Moving Bed Biofilm Reactor) process

• Main Authors: DING BAOQIANG, ZHANG JUNNAN, ZHANG ZHIJIE, ZHAO HUANRAN, LI SHUYAN, MA LIN, WU WENMING
• Format: Patent
• Language: Chinese; English
• Published: 25.03.2022
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to a method for treating industrial wastewater by using an MBBR (Moving Bed Biofilm Reactor) process, which comprises the following steps: filler biofilm formation: adding a filler into a reactor, then adding a mixed solution of activated sludge and a nutrient solution to the position of a water outlet, and aerating until the filler is completely fluidized; carrying out stuffy aeration, adding the activated sludge again, then continuing stuffy aeration, and repeating for 5-7 times until pores of the filler are covered by the yellowish-brown biological membrane, so as to finish biofilm culturing; sludge acclimatization: after biofilm formation, adding an amphoteric flocculant, then debugging and finishing treatment, the dosage of the amphoteric flocculant is 15-20% of the weight of the filler, sludge acclimatization is performed after the filler biofilm formation stage, and finally parameter debugging is performed according to actual conditions, so that the maximum treatment capacity for