CAJ | 학술논문

为解决水库型水源水中季节性藻致嗅味物质的应急处理问题，研究了不同水质条件下粉末活性炭( PAC)对水中嗅味物质二甲基异崁醇(2-MIB)的吸附动力学模型和吸附热力学模型，考察了2类水库型水源水中有机物对吸附作用的影响。结果表明：在试验浓度范围内，纯水、原水A和原水B中PAC对2-MIB的吸附过程符合准二级反应动力学模型，吸附等温线符合修正的Freundlich方程，且吸附速率和吸附容量依次降低；原水A、B中PAC对2-MIB的吸附能力显著降低，但原水B中2-MIB在活性炭表面的吸附势能比原水A中的强，这可能主要是由原水中分子质量<500 u的小分子有机物引起的微孔吸附竞争及其极性造成的。
위해결수고형수원수중계절성조치후미물질적응급처리문제，연구료불동수질조건하분말활성탄( PAC)대수중후미물질이갑기이감순(2-MIB)적흡부동역학모형화흡부열역학모형，고찰료2류수고형수원수중유궤물대흡부작용적영향。결과표명：재시험농도범위내，순수、원수A화원수B중PAC대2-MIB적흡부과정부합준이급반응동역학모형，흡부등온선부합수정적Freundlich방정，차흡부속솔화흡부용량의차강저；원수A、B중PAC대2-MIB적흡부능력현저강저，단원수B중2-MIB재활성탄표면적흡부세능비원수A중적강，저가능주요시유원수중분자질량<500 u적소분자유궤물인기적미공흡부경쟁급기겁성조성적。
In order to solve the problem of seasonal pollution of reservoir water by taste and odor caused by algae, the adsorption kinetics and isothermal adsorption modeling of 2-methylisoborneol (2-MIB) by powdered activated carbons ( PAC) in different water quality were studied, and the adsorption effects of organic matter in two kinds of reservoir water were investigated. Results showed that, in the range of test concentration, the adsorption processes followed pseudo-second-order kinetics equation and the modified Freundlich equation in pure water, raw water A and B, and the adsorption rate and adsorption capacity reduced in turn. The adsorption capacity decreased significantly in raw water A and B, but the adsorption potential energies of 2-MIB on activated carbon in raw water B was stronger than that of raw water A, due to the micropore competitive adsorption and polarity caused by the reservoir water of small organic molecules with relative molecular weight of <500 u.