Characterization of iron-phosphorus minerals during phosphorus removal by onsite wastewater treatment systems

现场废水处理系统除磷过程中铁磷矿物的表征

• 批准号: 462878-2014
• 负责人: Wu, Lingling
• 金额: $ 1.82万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=558127
• 关键词: Characterization; iron; phosphorus; minerals; during

The low-energy Waterloo EC-P technology developed by Waterloo Biofilter Systems Inc. removes phosphorus in septic systems by dissolving iron into the sewage. The company has shown that high removal rate of phosphorus is achieved through precipitating iron-phosphorus minerals in a variety of in-line biological filtration units. Although no leaching out of phosphorus has been observed to date, the identities as well as physical and chemical properties of the precipitated minerals remain unknown, which hinders the long-term assessment of the efficiency of the technology. The company will be able to better evaluate and achieve high long-term phosphorus removal rate and potentially reduce energy input by investigating compositions and stability of the iron-phosphorus minerals under various geochemical conditions.

滑铁卢生物滤池系统公司开发的低能耗滑铁卢EC-P技术通过将铁溶解到污水中来去除化粪池系统中的磷。该公司已经证明，通过在各种在线生物过滤单元中沉淀铁磷矿物，可以实现高除磷率。尽管到目前为止还没有观察到磷的浸出，但沉淀矿物的身份以及物理和化学性质仍然未知，这阻碍了对该技术效率的长期评估。通过研究铁磷矿物在各种地球化学条件下的组成和稳定性，该公司将能够更好地评估和实现较高的长期除磷效率，并有可能减少能源投入。