摘要
为解决人类因开发和利用环境资源,增加工农业生产的大规模发展,造成大量的城市污水含有氮、磷营养物质导致湖泊、水库和河流中营养物质的负载。提出城市污水处理工艺活性污泥法,通过单一铁元素施加体系以及混合铁元素施加体系对于活性污泥沉降性能,实现污泥中各价铁元素含量以及除磷的效果。实验结果表明,Fe(Ⅲ)的含量决定了活性污泥的性质,铁的加入能有效减少活性污泥中丝状菌膨胀,使活性污泥絮体更加密实,均能达到城市污水处理中对活性污泥性能的要求。
In order to solve the problem of increasing the large-scale development of industrial and agricultural production due to the development and utilization of environmental resources by humans,a large amount of urban sewage contains nitrogen and phosphorus nutrients,which causes the load of nutrients in lakes,reservoirs and rivers.The activated sludge method of urban sewage treatment process is proposed.Through a single iron element application system and a mixed iron element application system,the settling performance of activated sludge is achieved,and the content of iron elements in the sludge and the effect of phosphorus removal are achieved.The experimental results show that the content of Fe(Ⅲ)determines the properties of activated sludge.The addition of iron can effectively reduce the expansion of filamentous bacteria in the activated sludge and make the activated sludge flocs more dense.Activated sludge performance requirements.
作者
王飞宇
孙凤婷
高俊峰
Wang Feiyu;Sun Fengting;Gao Junfeng(Beijing Research Institute of Uranium Geology, Beijing 100029, China;Tongliao Ecological Environment Bureau Economic and Technological Development Zone Branch, Tongliao 028000, China;Inner Mongolia Diligent Environmental Protection Technology Co., Ltd., Tongliao 028000, China)
出处
《环境科学与管理》
CAS
2021年第2期111-114,共4页
Environmental Science and Management
关键词
城市污水
活性污泥法
零价铁
二价铁
三价铁
urban sewage
activated sludge method
zero-valent iron
bivalent iron
trivalent iron
