CAJ | 학술논문

利用粉煤灰合成Linde type F(K)沸石吸附重金属Ni2+,探讨吸附剂用量、初始pH、反应温度以及反应时间对Ni2+吸附效果的影响,同时进行吸附等温线和吸附动力学的数据模拟。结果表明,沸石投加量、初始pH以及反应温度均对Ni2+的去除效果影响明显。随着沸石投加量的不断增大,Ni2+去除率不断提高,饱和吸附量逐渐减小。初始pH 7是沸石吸附Ni2+的最适pH。反应温度越高,沸石吸附Ni2+达到平衡的时间越短。沸石对Ni2+的吸附过程符合Langmuir吸附等温式；准一级动力学方程能较好地描述沸石对Ni2+的吸附行为。
이용분매회합성Linde type F(K)비석흡부중금속Ni2+,탐토흡부제용량、초시pH、반응온도이급반응시간대Ni2+흡부효과적영향,동시진행흡부등온선화흡부동역학적수거모의。결과표명,비석투가량、초시pH이급반응온도균대Ni2+적거제효과영향명현。수착비석투가량적불단증대,Ni2+거제솔불단제고,포화흡부량축점감소。초시pH 7시비석흡부Ni2+적최괄pH。반응온도월고,비석흡부Ni2+체도평형적시간월단。비석대Ni2+적흡부과정부합Langmuir흡부등온식；준일급동역학방정능교호지묘술비석대Ni2+적흡부행위。
To examine the adsorption of Ni2+ through synthesizing Linde type F (K) zeolite from coal fly ash, the adsorbent dosage, initial pH, the reaction temperature and reaction time were investigated. The adsorption isotherm and kinetics equation was simulated. The results showed that the adsorbent dosage, initial pH and the reaction time had significant effect on the removal of Ni2+. With the increase of the adsorbent dosage, the removal rate of Ni2+ was improved and the saturated adsorption capacity was decreased gradually. The optimal pH was 7. The equilibration time of adsorption was shorter with the increase of reaction temperature. The adsorption process of Ni2+ was fitted with Langmuir adsorption isotherm. The reaction of adsorbing Ni2+ on Linde type F(K) zeolite was matched with the model of pseudo-first class reaction kinetics.