Centro de Ingeniería en Medio Ambiente, Departamento de Ingeniería Química, Instituto Tecnológico de Buenos Aires, Buenos Aires 1106, Argentina.
Water Res. 2010 Nov;44(19):5702-12. doi: 10.1016/j.watres.2010.05.059. Epub 2010 Jun 10.
Nanoscale iron oxide particles were synthesized and deposited on porous alumina tubes to develop tubular ceramic adsorbers for the removal of arsenic, which is an extremely toxic contaminant even in very low concentrations. Its natural presence affects rural and low-income populations in developing countries in Latin America and around the world, which makes it essential to develop a user-friendly, low energy demanding and low cost treatment technology. The fabricated ceramic membranes can be operated with minimal trans-membrane pressure difference and do not require pumping. The support tubes and final membrane have been characterized by surface area and porosity measurements, permeability tests and scanning electron microscopy (SEM) imaging. Arsenic concentrations were determined by inductively coupled plasma-optical emission spectroscopy (ICP-OES). Due to its low cost and simple operation, the system can be applied as a point of use device for the treatment of arsenic contaminated groundwaters in developing countries.
纳米氧化铁颗粒被合成并沉积在多孔氧化铝管上，以开发管状陶瓷吸附剂，用于去除砷，即使在非常低的浓度下，砷也是一种极其有毒的污染物。它的自然存在影响着拉丁美洲和世界各地发展中国家的农村和低收入人群，因此开发一种用户友好、低能耗和低成本的处理技术至关重要。所制备的陶瓷膜可以在最小的跨膜压差下运行，并且不需要泵送。支撑管和最终的膜已经通过表面积和孔隙率测量、渗透测试和扫描电子显微镜 (SEM) 成像进行了表征。砷浓度通过电感耦合等离子体-光学发射光谱法 (ICP-OES) 确定。由于其低成本和简单的操作，该系统可以作为一种现场使用的设备，用于处理发展中国家受砷污染的地下水。
