Effect of dissolved organic matter in urban wastewater on heavy metal speciation and trophic transfer

城市废水中溶解有机物对重金属形态和营养转移的影响

• 批准号: 20360239
• 负责人: NAKAJIMA Fumiyuki
• 金额: $ 11.32万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360239/
• 关键词: 亜鉛; 錯形成; スペシエーション; 生物移行性; 下水処理; 水; 溶存有機物; 緑藻; 光分解; 下水処理水; 水環境; 銅

Dissolved organic matter in municipal wastewater treatment plant effluent had higher conditional stability constant of zinc and copper complexation than natural humic substance. Addition of the organic matter to culture media induced lower zinc uptake by green algae as well as less trophically available zinc in algal cells. Consequently, it is suggested that zinc toxicity to the predator in the environment is reduced by the organic matter. Result of biodegradation and photodegradation tests showed the stability of the organic matter under river water environment in terms of complexation characteristics.

城市污水处理厂出水中溶解性有机物与锌、铜络合的条件稳定常数比天然腐殖酸高。培养基中添加有机物会导致绿色藻类对锌的吸收降低，同时藻类细胞中可利用的锌也会减少。因此，有机质可以降低锌对捕食性天敌的毒性。生物降解和光降解试验结果表明，有机物在河水环境中的络合特性具有稳定性。

项目成果

Heavy metal uptake and trophically-available fraction in green algae Scenedesmus acutus under various growth conditions

不同生长条件下绿藻尖栅藻的重金属吸收和营养有效成分

• 发表时间: 2009
• 作者: Hiroki Iyooka;Akihito Nakao;Tetsuya Kusuda;Yukihiro Shimatani;G.G Tushara Chaminda;Rina Resnawati
• 通讯作者: Rina Resnawati

Comparison of metal (Zn and Cu) complexation characteristics of DOM in urban runoff, domestic wastewater and secondary effluent

• DOI: 10.2166/wst.2010.517
• 发表时间: 2010-01-01
• 期刊: WATER SCIENCE AND TECHNOLOGY
• 影响因子: 2.7
• 作者: Chaminda, G. G. Tushara;Nakajima, Fumiyuki;Kurisu, Futoshi
• 通讯作者: Kurisu, Futoshi

Biological alteration of zinc complexation characteristics of dissolved organic matter in domestic wastewater treatment plant effluent under river water environment

河水环境下生活污水处理厂出水溶解性有机物锌络合特性的生物变化

• 发表时间: 2010
• 期刊: Journal of Water and Environment Technology Vol.8
• 作者: Tushara Chaminda G.G;Fumiyuki Nakajima;Ikuro Kasuga
• 通讯作者: Ikuro Kasuga

Comparison of Metal(Zn and Cu)Complexation Characteristics of DOM in Different Urban Wastewater

不同城市废水中DOM金属(Zn、Cu)络合特性比较

• 发表时间: 2009
• 作者: Hiroki Iyooka;Akihito Nakao;Tetsuya Kusuda;Yukihiro Shimatani;G.G Tushara Chaminda
• 通讯作者: G.G Tushara Chaminda

Zn and Cu complexation with DOM in wastewater treatment plant effluent

废水处理厂废水中 Zn 和 Cu 与 DOM 络合

• 发表时间: 2009
• 作者: Hiroki Iyooka;Akihito Nakao;Tetsuya Kusuda;Yukihiro Shimatani;G.G Tushara Chaminda;Rina Resnawati;G.G Tushara Chaminda
• 通讯作者: G.G Tushara Chaminda