CAJ | 학술논문

研究膨润土对水溶液中铅的吸附特性以及铝对铅吸附的影响。通过各组吸附实验，建立膨润土对水溶液中铅离子的吸附最佳条件，天然膨润土对铅的吸附平衡时间约为60 min,其吸附符合一级动力学方程；铅吸附最适pH=9；天然膨润土对水溶液中铅离子的吸附规律符合Freundlich等温方程和Langmuir等温方程，呈显著相关性；加入少量铝离子时，吸附除铅能力增强，但继续增加铝浓度，去除能力降低，该现象主要通过铝盐水解所致的pH变化起调节作用，电中和作用不明显。
연구팽윤토대수용액중연적흡부특성이급려대연흡부적영향。통과각조흡부실험，건립팽윤토대수용액중연리자적흡부최가조건，천연팽윤토대연적흡부평형시간약위60 min,기흡부부합일급동역학방정；연흡부최괄pH=9；천연팽윤토대수용액중연리자적흡부규률부합Freundlich등온방정화Langmuir등온방정，정현저상관성；가입소량려리자시，흡부제연능력증강，단계속증가려농도，거제능력강저，해현상주요통과려염수해소치적pH변화기조절작용，전중화작용불명현。
The adsorption characteristics of lead on natural bentonite and effect of aluminum ions were studied. The results show that the adsorption completes in 60 min, conforms to first-order reaction, optimum pH is 9;the adsorption of lead ions on bentonite conforms to both Langmuir isotherm equation and Freundlich isotherm equation with significant correlation. When adding a small amount of aluminum ions in the reaction system, the ability of lead removing enhances, and then decreases with further increase of aluminum ion content, which is resulted from the adjusting of pH, but is not caused by the charge neutralization.