System and method for batch treatment of petrochemical sewage by using aerobic granular sludge

According to the system and method for batch treatment of petrochemical sewage through aerobic granular sludge, the shear stress generator, the selective pressure generator and the sludge screener are adopted, the structure of the aerobic granular sludge is optimized in a multi-dimensional mode, the aerobic granular sludge in the system is large in particle size, high in impact resistance and rapid in system recovery, meanwhile, the system is designed in a modular and device mode, and the system is convenient to use and popularize. Compared with a traditional process, the method has the advantages that the sludge age is long, the treated sludge concentration is increased, the residual sludge amount is reduced, the sedimentation time is shortened, a sedimentation tank is not needed, backflow is avoided, and the occupied area and the energy consumption are greatly reduced. 本发明提供了一种好氧颗粒污泥批处理石化污水的系统及方法，采用剪切应力发生器、选择压产生器及污泥筛分器，多维度优化好氧颗粒污泥的结构，系统中好氧颗粒污泥粒径大，抗冲击能力强，系统恢复快，同时系统采用模块化、装置化设计，控制精准、工艺操作灵活，较传统工艺相比污泥泥龄长、提升了处理污泥