摘要
利用自然水体培养的生物膜进行了微量矿物盐溶液、ddH2O体系的Mn2+的吸附实验,并用无Mn2+的微量矿物盐溶液、ddH2O作对比,研究自然水体生物膜吸附Mn2+过程中吸附液pH值的变化.结果表明,在吸附过程中,4种吸附液的pH值都是先升后降至稳定,微量矿物盐体系的pH值高于相应的ddH2O体系的pH值,无Mn2+吸附液的pH值高于有Mn2+的吸附液的pH值,且可用氧化物表面吸附的配合模式描述自然水体生物膜吸附Mn2+过程中吸附液pH值的变化.
Adsorption of Mn2+ to natural surface coatings developed in the South Lake was carried out for the purpose of investigating pH changes of different systematic solutions, which were prepared by minimal mineral salts (MMS) and distilleddeionized water (dd water) with Mn2+ present and absent, respectively. The results show that the pH values of the four solutions employed increased remarkably during the initial adsorption period first, subsequently decreased to a stationary value gradually. In addition, the pH values of MMS solutions were higher than those of dd water solutions without MMS accordingly, and solutions without Mn2+ higher than those of solutions with Mn2+ present. The variety of pH in the study could be described by an oxide surface adsorption conjugate model.
出处
《吉林大学学报（理学版）》
CAS
CSCD
北大核心
2003年第2期234-237,共4页
Journal of Jilin University:Science Edition
基金
国家自然科学基金(批准号:20077011)
国家教育部博士学科点专项基金(批准号:20020183056)
高等学校骨干教师资助计划基金(批准号:教技司[2000]65号).
