摘要
介绍了腐殖质对土壤中有机污染物的吸附行为。归纳了腐殖质对有机污染物的吸附机理,即共价吸附、―空穴‖吸附、氢键作用、疏水性吸附等;分析了土壤pH值、阳离子交换量(CEC)以及温度对腐殖质吸附有机污染物的影响,着重讨论了主要的吸附模型:线性吸附模型、Langmuir吸附模型、Fruendlich吸附模型、双模式吸附模型、分布式反应模型等以及适用条件;最后提出了今后研究的热点和方向:腐殖质(胡敏酸、富里酸以及胡敏素)吸附行为的全面研究,多种污染物共存体系复合研究,腐殖质对有机污染物的工程应用研究。
The adsorption behaviorofsoilorganic pollutantsonhumuswasreviewed.The adsorption mechanismsof theorganic pollutantsonhumusweresummarized,such asthe covalent adsorption, ＂hole＂ adsorption, hydrogen bonding, hydrophobic adsorptionand so on. The impacts of soil pH,cation exchange capacityandtemperatureon the organic pollution adsorptiononhumuswereanalyzed. The main adsorption models, namely theLinear adsorption model,the Langmuir adsorption model,Fruendlich adsorption model,Dual-mode sorption model,distribution reactivitymodel, andthe range of conditionswerediscussedemphatically.Finally the research hot spotsand directions inthe futurewereproposed： thecomprehensive study of humus（humic acid, fulvic acid and humin） adsorption behaviors, thecomposite researchof avariety of pollutants coexist system, theengineering application study of organic pollutantsadsorptiononhumus.
出处
《当代化工》
CAS
2014年第10期2068-2071,共4页
Contemporary Chemical Industry
基金
总后勤部基建营房部科研项目
项目号:CY112C017
浙江省固体废物处理与资源化重点实验室开放课题
项目号:SWTR-2012-04
关键词
腐殖质
有机污染物
吸附
土壤化学修复
Humus
Organic pollutant
Adsorption
Soil chemical remediation
