| 腐殖质胶结团聚体对苯酚的富集特征 |
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| 引用本文： | 王嗣淇,张伟强,邱素芬.腐殖质胶结团聚体对苯酚的富集特征[J].环境科学研究,2018,31(11):1940-1948. |
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| 作者姓名： | 王嗣淇 张伟强 邱素芬 |
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| 作者单位： | 1.沈阳理工大学环境与化学工程学院, 辽宁 沈阳 110159 |
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| 基金项目： | 沈阳理工大学引进高层次人才科研支撑计划项目（No.50010102） |
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| 摘 要： | 为探讨不同腐殖质组分团聚体对苯酚富集能力的影响，应用国际腐殖酸协会（IHSS）推荐方法提取腐殖质，以Ca2+、Al3+、Fe3+为桥键离子，制备了高岭石、蒙脱石不同腐殖质组分团聚体，采用平衡吸附法研究了不同腐殖质组分团聚体对苯酚的富集特征.结果表明:高岭石不同腐殖质组分团聚体对苯酚的饱和吸附量（Qm）大小依次为FA（富里酸）团聚体（254.11±5.35）mg/kg] > HA（胡敏酸）团聚体（186.14±1.61）mg/kg] > HM（胡敏素）团聚体（120.61±1.67）mg/kg]；蒙脱石不同腐殖质组分团聚体对苯酚的饱和吸附量大小依次为FA团聚体（418.72±19.14）mg/kg）] > HA团聚体（290.00±13.06）mg/kg）] > HM团聚体（160.46±4.92）mg/kg）]；高岭石不同腐殖质组分团聚体对苯酚的富集系数（ER）大小依次为FA团聚体（2.03±0.07）> HA团聚体（1.91±0.04）> HM团聚体（1.85±0.04）；蒙脱石不同腐殖质组分团聚体对苯酚的富集系数大小依次为FA团聚体（2.50±0.10）> HA团聚体（2.45±0.11）> HM团聚体（1.36±0.04）.研究显示，FA团聚体对苯酚的饱和吸附量和富集系数较大，对苯酚的吸附（富集）作用较强，HM团聚体对苯酚的饱和吸附量和富集系数较小，对苯酚的吸附（富集）作用较弱.不同腐殖质组分团聚体对苯酚的富集能力大小表现为FA团聚体> HA团聚体> HM团聚体.因此，FA团聚体可作为控制受苯酚污染场地土壤的首选修复剂.
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| 关 键 词： | 富里酸 胡敏酸 胡敏素 团聚体 苯酚 饱和吸附量 富集系数 |
| 收稿时间： | 2017/12/25 0:00:00 |
| 修稿时间： | 2018/7/18 0:00:00 |
Enrichment Characteristics of Phenol on Humus Cemented Aggregates |
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| WANG Siqi,ZHANG Weiqiang and QIU Sufen.Enrichment Characteristics of Phenol on Humus Cemented Aggregates[J].Research of Environmental Sciences,2018,31(11):1940-1948. |
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| Authors: | WANG Siqi ZHANG Weiqiang and QIU Sufen |
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| Affiliation: | 1.College of Environment and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China2.College of Environmental Science and Engineering, Liaoning Technical University, Fuxin 123000, China |
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| Abstract: | To explore the effects of aggregates with different humus fractions on phenol enrichment capacity aggregates of kaolinite and montmorillonite with different humus compositions were prepared using the method recommended by the International Humic Substances Society (IHSS). The enrichment characteristics of phenol by aggregates with different humus fractions were investigated using batch equilibrium adsorption experiments. The results indicated that the order of sorption capacity (Qm) on kaolinite aggregates with different humus fractions was fulvic acid aggregates ((254.11±5.35)mg/kg) > humic acid aggregates ((186.14±1.61)mg/kg) > humin aggregates ((120.61±1.67)mg/kg);and the order of Qm for montmorillonite aggregates with different humus fractions was fulvic acid aggregates ((418.72±19.14)mg/kg) > humic acid aggregates ((290.00±13.06)mg/kg) > humin aggregates ((160.46±4.92)mg/kg). The order of enrichment ratio (ER) for kaolinite aggregates with different humus fractions was fulvic acid aggregates (2.03±0.07) > humic acid aggregates (1.91±0.04) > humin aggregates (1.85±0.04). And the order of ER for montmorillonite aggregates with different humus fractions was fulvic acid aggregates (2.50±0.10) > humic acid aggregates (2.45±0.11) > humin aggregates (1.36±0.04). In summary, the order of enrichment capacity was fulvic acid aggregates > humic acid aggregates > humin aggregates. This study could provide a basis for soil restoration of phenol contaminated site by humus. |
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| Keywords: | fulvic acids humic acids humin aggregates phenol sorption capacity enrichment ratio |
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