Oguz Ensar
Environmental Problems Research Center, Atatürk University, 25240 Erzurum, Türkiye.
J Hazard Mater. 2004 Oct 18;114(1-3):131-7. doi: 10.1016/j.jhazmat.2004.07.010.
Blast furnace slag was used to remove phosphate from aqueous solutions. The influence of pH, temperature, agitation rate, and blast furnace slag dosage on phosphate removal was investigated by conducting a series of batch adsorption experiments. In addition, the yield and mechanisms of phosphate removal were explained on the basis of the results of X-ray spectroscopy, measurements of zeta potential of particles, specific surface area, and images of scanning electron microscopy (SEM) of the particles before and after adsorption. The specific surface area of the blast furnace slag was 0.4m(2)g(-1). The removal of phosphate predominantly has taken place by a precipitation mechanism and weak physical interactions between the surface of adsorbent and the metallic salts of phosphate. In this study, phosphate removal in excess of 99% was obtained, and it was concluded that blast furnace slag is an efficient adsorbent for the removal of phosphate from solution.
采用高炉矿渣去除水溶液中的磷酸盐。通过进行一系列批量吸附实验，研究了pH值、温度、搅拌速率和高炉矿渣用量对磷酸盐去除效果的影响。此外，根据X射线光谱分析结果、颗粒ζ电位测量、比表面积以及吸附前后颗粒的扫描电子显微镜（SEM）图像，解释了磷酸盐的去除率和去除机制。高炉矿渣的比表面积为0.4m²g⁻¹。磷酸盐的去除主要通过沉淀机制以及吸附剂表面与磷酸盐金属盐之间的弱物理相互作用实现。在本研究中，磷酸盐去除率超过99%，得出结论：高炉矿渣是从溶液中去除磷酸盐的高效吸附剂。
