【摘要】 印染废水的水量具有水质变化大、有机污染物含量高、色度深、pH波动大等特点，属难处理的工业废水之一。目前印染废水主要采用生化法、膜分离技术、化学氧化技术等方法进行处理，往往受到可生化性差、成本过高、不能脱色等因素限制。本试验通过培养和驯化微生物处理某大型印染有限公司排放的印染退浆废水，采用好氧、厌氧及絮凝的组合工艺降解污水中PVA类污染物。整个过程针对各单元进水水质进行90 d的持续监测，分析印染废水生化处理的可行性（BOD₅/COD可生化指标）,探索最优的工艺路线，为企业推广应用提供技术依据和参考。更多还原

【Abstract】 The characteristics of dyeing and printing wastewater include large water volume, significant fluctuation of water quality, high content of organic pollutants, deep color, and large pH fluctuations, which makes it one of the most difficult industrial wastewater to treat. Currently, the main methods for treating such wastewater are biological treatment, membrane separation, and chemical oxidation. However, these methods are often limited by poor biodegradability, high cost, and ineffective color removal. This experiment aimed to treat dyeing and printing wastewater discharged from a large dyeing and printing company by culturing and acclimating microorganisms. A combined process consisting of anaerobic, aerobic, and flocculation steps was used to degrade PVA-type pollutants in the wastewater. Throughout the process, the water quality of each treatment unit was continuously monitored to evaluate the biodegradability（BOD₅/COD ratio） of the dyeing wastewater and to determine the optimal process route. This provides a technical basis and reference for the promotion and application of the technology in industrial settings.更多还原