Puritek Research Institute, Puritek Co. Ltd., Nanjing, China.
Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; College of Engineering, City University of Hong Kong, Kowloon, Hong Kong.
Bioresour Technol. 2020 Dec;317:123975. doi: 10.1016/j.biortech.2020.123975. Epub 2020 Aug 8.
High strength inhibitory wastewaters from chemical industries are commonly treated by energy-intensive physicochemical methods. The present work examines the startup and performance of a full-scale anaerobic granular sludge blanket (GSB) plant for treatment of an inhibitory acrylic acid wastewater. From a performance test on chemical oxygen demand (COD) loading up to 9800 mg/L and 3074 kg/d, the GSB plant removed 95% of COD. Coupled with a two-stage aerobic effluent polishing unit, the integrated anaerobic-aerobic plant achieved a remarkable total COD removal of 98-99% at full design load. Final effluent ranging from 173 to 278 mg COD/L conformed to the public sewer limits of 500 mg/L. Acclimated microbes and granulation resulted in efficient degradation of the inhibitory wastewater. Adequate reactor and process designs are crucial for granulation and robust treatment. The anaerobic and aerobic processes complement each other as anaerobic prime degrader and aerobic polisher in the integrated processes.
高浓度抑制性化工废水通常采用能源密集型物理化学方法进行处理。本研究考察了用于处理抑制性丙烯酸废水的全规模厌氧颗粒污泥床（GSB）工厂的启动和运行情况。在 COD 负荷高达 9800mg/L 和 3074kg/d 的性能测试中，GSB 工厂去除了 95%的 COD。与两级好氧出水抛光单元相结合，该集成厌氧-好氧工厂在满负荷设计下实现了高达 98-99%的总 COD 去除率。最终出水 COD 浓度范围为 173 至 278mg/L，符合公共污水管的 500mg/L 限值。驯化的微生物和颗粒化导致抑制性废水的有效降解。适当的反应器和工艺设计对于颗粒化和稳健处理至关重要。厌氧和好氧工艺相互补充，在集成工艺中分别作为厌氧主降解器和好氧抛光器。
