Process of heavy metal accumulation in Ariake Bay and the assessment of heavy metal retention by sediment mud

有明湾重金属富集过程及沉积泥对重金属的滞留评价

• 批准号: 19380139
• 负责人: OHTSUBO Masami
• 金额: $ 10.23万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19380139/
• 关键词: 有明海; 底泥; 重金属; 吸着; 土質; 物理的性質; 粘土鉱物; 有機物; 炭酸塩

We examined the heavy metal concentrations, physical and chemical properties of sediment mud in Ariake Bay and inflowing rivers, and also conducted batch tests on heavy metal sorption on the mud samples. Based on the data obtained, the factors that affect heavy metal retention for the mud were assessed. The heavy metal concentration in Ariake Bay mud was in the range of 0.04-1.02 mg/kg for Cd, 3.6-24.1 mg/kg for Pb, 10.2-63.0 mg/kg for Cu, and 31-157 mg/kg for Zn. A significant correlation was observed between the heavy metal concentrations and organic carbon in the Ariake Bay mud, which indicates that organic matter in the sediment mud is an important factor for heavy metal retention.

我们检测了有明湾及入流河流沉积物泥的重金属浓度、理化性质，并对泥样进行了批量重金属吸附试验。在此基础上，对影响泥浆重金属滞留的因素进行了评价。有明湾泥中重金属含量分别为Cd 0.04 ~ 1.02 mg/kg、Pb 3.6 ~ 24.1 mg/kg、Cu 10.2 ~ 63.0 mg/kg、Zn 31 ~ 157 mg/kg。有明湾泥沙中重金属含量与有机碳呈显著相关，表明泥沙中的有机质是重金属滞留的重要因素。

项目成果

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有明海北部底質の物理・化学的性質と重金属分布

有明海北部沉积物理化性质及重金属分布

• 发表时间: 2008
• 作者: 岡本雅美;大坪政美;東孝寛;金山素平
• 通讯作者: 金山素平