对沸石进行高温改性后,与钢渣和脱硫石膏按一定比例混合,研究混合料对废水的氨氮和总磷的同步去除效果。结果表明,原料配比沸石∶钢渣∶脱硫石膏为4∶1∶1(质量比),pH=8,固液比为1∶6、时间为90min条件下,混合料对废水氨氮和总磷的去除效果分别达到29.41%和78.44%。实际工程实施应考虑填料分段使用,可同时实现氨氮和总磷更高效率的去除,以及固体废弃物的资源化利用。
The simultaneous removal efficiency of amminia nitrogen and total phosphorus by high temperature modified zeolite and desulphurization gypsum were studied.The results showed that at the time of 90min,When the raw material ratio of modified zeolite∶steel slag∶desulfurization gypsum was 4∶1∶1,and the pH was 8,The solid-liquid ratio was 1∶6,The removal of amminia nitrogen and phosphorus could reach 29.41% and 78.44% respectively.In order to ensure high removal efficiency and resource utilization of solid waste,adsorptive packing should be used of segment.
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基金资助
国家重点研发计划资助项目(2016YFD0501405)
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