Multifunctional mesostructured adsorbents for agricultural wastewater treatment

申请人的研究计划旨在通过化学转化，吸附和升级开发有效的处理方法，专门用于农业和农业食品废水。在此框架内，申请人的第二项发现拨款侧重于开发一种吸附技术，用于减少农业液体废水中出现的三种主要污染物磷酸盐、硝酸盐和铵态氮。在这方面，氮和磷是特别重要的污染物，因为两者都与水生富营养化有关。此外，饮用水中亚硝酸盐和硝酸盐离子的存在是一种潜在的公共健康危害，而天然水中铵态氮的存在即使浓度低至0.2毫克/升也会对鱼类和其他形式的水生生物造成急性毒性。申请人打算继续开发一种技术方法，允许从农业液体流出物中联合去除和回收硝酸盐和磷酸盐，并将该方法扩展到铵离子。

The applicant's research program aims at the development of effective treatment approaches dedicated to the agricultural and agri-food effluents via chemical transformation, adsorption and upgrading. Within this framework, the applicant's second discovery grant focuses on the development of an adsorption technology for the abatement of phosphates, nitrate and ammonium nitrogen, three key pollutants occurring in agricultural liquid effluents. In this regard, nitrogen and phosphorus are particularly important pollutants as both are implicated in aquatic eutrophication. Furthermore, the presence of nitrite and nitrate ions in drinking water is a potential public health hazard, while the presence of ammonium nitrogen in natural waters will result in acute toxicity to fish and other forms of aquatic life even at concentrations as low as 0.2 mg/L. The applicant intends to pursue the development of a technological approach allowing for a combined removal and recovery of nitrate and phosphates from agricultural liquid effluents and to extend this approach to ammonium cations as well.