摘要
聚乙烯醇(PVA)是一种水溶性的高分子聚合物,具有稳定性和粘附性。PVA属于难降解物质,含PVA的废水生化性能差,COD含量高。目前较好的处理方法是物化法与生化法的联用。根据多年处理同类型废水的经验以及现有污水处理厂实际运行效果,选择目前国内较成熟的"气浮-水解-好氧-二沉-气浮"的提标改造工艺处理含PVA印染废水,处理后的废水达到《纺织染整工业水污染物排放标准》(GB 4287-2012)间接排放指标,可以在同类型污水厂示范推广。
Dyeing wastewater containing polyvinyl alcohol（ PVA） has the difficult to treatment and reaches the standard.According to many years of dealing with wastewater of experience and the actual operating results of currently existing sewage treatment plant,we select the currently more mature treatment process which＂air flotation-hydrolysis-aerobic-precipitation-air flotation＂,to achieve the expected treatment effect. This process can be used generalization in the same type of sewage treatment plant.
出处
《环境科学与管理》
CAS
2016年第3期85-88,169,共5页
Environmental Science and Management
基金
国家"十二五"水专项课题(2012ZX07101)
浙江省环保科研计划项目资助(2013B003)
关键词
PVA废水
水解-射流曝气好氧工艺
气浮
PVA wastewater
hydrolysis-jet aerationaerobic process
air flotation
