Multifunctional mesostructured adsorbents for agricultural wastewater treatment

申请人的研究计划旨在通过化学转化，吸附和升级开发专用于农业和农业食品废水的有效处理方法。在这一框架内，申请人的第二笔发现赠款侧重于开发一种吸附技术，以减少农业液体流出物中的磷酸盐、硝酸盐和铵态氮这三种主要污染物。在这方面，氮和磷是特别重要的污染物，因为两者都涉及水生富营养化。此外，饮用水中存在的亚硝酸盐和硝酸盐离子是潜在的公共卫生危害，而天然沃茨中存在的铵态氮即使浓度低至0.2毫克/升也会对鱼类和其他形式的水生生物产生急性毒性。申请人打算开发一种技术方法，以便从农业液体流出物中综合去除和回收硝酸盐和磷酸盐，并将这种方法扩展到铵阳离子。

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.