CAJ | 학술논문

在苦土粉、苦土粉与MgCl2联用分别为镁源的条件下，研究二者对模拟废水中氮、磷去除的影响。结果表明，单独使用苦土粉时，苦土粉最佳投加质量为1.0 g，此时，Mg投加浓度为18.75 mmol/L，平衡时间为60 min，氮、磷去除率分别为79.9%，84.0%；然而，苦土粉与MgCl2联用时，苦土粉最佳投加质量为0.8 g和MgCl2最佳投加浓度为3 mmol/L，此时，Mg投加浓度为18 mmol/L，平衡时间为40 min，氮、磷去除率分别为87.7%，92.1%。对比分析可知，苦土粉与MgCl2联用时，所用镁较少，反应速率较快，水中氮、磷的去除率显著提高。
재고토분、고토분여MgCl2련용분별위미원적조건하，연구이자대모의폐수중담、린거제적영향。결과표명，단독사용고토분시，고토분최가투가질량위1.0 g，차시，Mg투가농도위18.75 mmol/L，평형시간위60 min，담、린거제솔분별위79.9%，84.0%；연이，고토분여MgCl2련용시，고토분최가투가질량위0.8 g화MgCl2최가투가농도위3 mmol/L，차시，Mg투가농도위18 mmol/L，평형시간위40 min，담、린거제솔분별위87.7%，92.1%。대비분석가지，고토분여MgCl2련용시，소용미교소，반응속솔교쾌，수중담、린적거제솔현저제고。
The effect on the removal of nitrogen and phosphorus from simulated wastewater was investigated when the magnesia or magnesia and the MgCl2 are existing respectively. Results indicated that opimal dose of magnesia was 1.0 g, in this case, the amount of magnesium was 18.75 mmol, the reaction equilibrium time was 60 min,and the removal efficiency of nitrogen and phosphorus were 79.9% and 84.0% respectively when magnesia was used individually. However, the opimal dose of magnesia and the MgCl2 was 0.8 g and 3 mmol respectively on the condition that the magnesia and the MgCl2 are used simultaneously. At this time, the total dose of magnesia was 18 mmol, the reaction equilibrium time was 40 min, and the removal effciency of nitrogen and phosphorus were 87.7% and 92.1% respectively. The above result suggest that, less magnesium was used and the reaction rate was improved, more importantly the removal efficiency of nitrogen and phosphorus increases significantly considering the combined use of magnesia and MgCl2.