摘要
磷矿的大量开采和磷几乎不存在自然循环途径导致磷资源短缺现象日益严重,污水磷回收能在防治水体富营养化基础上缓解磷资源短缺问题。介绍了当前污水生物强化磷回收技术包括强化生物除磷、聚磷丝状菌除磷、膜强化生物除磷、生物铁工艺除磷、生物浸取及富集除磷的发展现状。分析了鸟粪石和磷酸钙作为生物法磷回收主要产物的生产利用效果,并提出未来能结合新型物理技术研制开发高效节能的磷回收工艺。
The growing shortage of phosphorus resources due to the extensive mining of phosphate mines and the almost non-existence of natural recycling pathways for phosphorus,and sewage phosphorus recovery can alleviate the shortage of phosphorus resources based on combating eutrophication of water bodies.The current development of bioreinforced phosphorus recovery technologies for wastewater,including bioreinforced phosphorus removal,phosphorus removal by polyphosphorus filamentous bacteria,phosphorus removal by membrane reinforcement,phosphorus removal by bioiron process,phosphorus removal by bioleaching and phosphorus removal by enrichment,is introduced.The effect of the production and utilization of bird droppings and calcium phosphate as the main products of biomass phosphate recovery is analyzed,and it is proposed that an energy efficient phosphate recovery process can be developed in the future in combination with new physical technologies.
作者
陈仁杰
荆肇乾
谢禹
陶梦妮
左思敏
CHEN Ren-jie;JING Zhao-qian;XIE Yu;TAO Meng-ni;ZUO Si-min(School of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China)
出处
《应用化工》
CAS
CSCD
北大核心
2021年第5期1377-1381,共5页
Applied Chemical Industry
基金
国家科技支撑计划项目(2015BAL02B04)
住房和城乡建设部科学技术项目(2015-K7-012)。
关键词
污水处理
磷回收
生物法
磷酸盐
sewage treatment
phosphorus recovery
biological method
phosphate
