【作者】 黄鹏； 孙永利； 郑兴灿；

【Author】 HUANG Peng SUN Yongli ZHENG Xingcan (National Engineering Research Center for Water & Wastewater,Tianjin 300074)

【机构】 国家城市给水排水工程技术研究中心；

【摘要】 沿海污水处理厂具有盐度高、水温低及贫营养特点。某沿海污水处理厂的活性污泥系统受环境因素影响显著,污泥膨胀现象频繁发生。通过对该污水厂污泥絮体微现形态观察,确定污泥膨胀已达到++级,对该污水处理长全流程工艺运行参数监测,确定温度低与营养负荷低是引发目标污水厂污泥膨胀的主要诱困,并针对诱困制定了确定了相应的对策,为沿海污水处理厂的运行提供借鉴。更多还原

【Abstract】 High salinity,low influent temperature and nutrients are the main characters of coast wastewater treatment plant.The activity sludge system of a coast wastewater treatment plant was impacted by environmental factors,which frequently caused sludge bulking.The micro morphology of activity sludge floes illustrated the bulking reached to ++ level.Through monitoring the operating parameters of the whole wastewater treatment process,the low seasonal temperature and nutrient loading were determined to be the main cause of sludge bulking.The controlling methods were decided to provide evaluable operating experience to other coast wastewater treatment plant.更多还原