The research on pursuing of estrogens in the coast urban area and development of its reduction technique.

沿海城市雌激素追踪研究及降低技术开发[J].

• 批准号: 16510062
• 负责人: SUZUKI Yoshihiro
• 金额: $ 2.43万
• 依托单位: University of Miyazaki
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16510062/
• 关键词: coast urban area; estrogens; urban river water; seawater mixing; 17β-estradiol; remove; wastewater treatment; 高度下水処理; 河口域; 底質; エストロン; 下水; 活性汚泥; 吸着; 分解

The conservation of the coastal environment is a duty for us, so that it is necessary to carry out understanding of the actual impact of estrogens such as 17β-estradiol (E2) and estrone (El) to coastal environment with human activity. On the assumption of the process for coagulation and coprecipitation in the estuary mixing river water contained estrogens, the behavior of E2 was examined by mixing experiments using urban river water and seawater. E2 in river water will diffuse into the coastal area by mixing and diffusion effects of seawater.Since natural estrogens such as E2 and El are excreted daily by humans, E2 and El are always present in sewage wastewater. In this study, the fate of E2 and El as a result of adsorption and decomposition in batch mixing experiments using municipal wastewater and activated sludge collected from an actual municipal sewage treatment plant was investigated. E2 and El in sewage were removed from the liquid phase in contact with activated sludge, and E2 and El adsorbed on the sludge were decomposed in 4 hours. Natural estrogens adsorb onto the activated sludge, and are therefore easy to biodegrade. In addition, the behavior of the highly potential endocrine disrupters E2 and El was investigated in an air-fluidized-bed biofilm reactor system for advanced sewage treatment. The removal of nitrogen as advanced sewage treatment was achieved by the system. However, the removal efficiencies of E2 and El in the biological process were less than 70% and 40%, respectively. Although the system successfully achieved advanced treatment, the removal efficiency of natural estrogens was lower than that for a conventional activated sludge plant. The advanced treatment of municipal sewage must be promoted to improve the aquatic environment, while it is necessary to take into account the fate of estrogens in the process.

保护海岸环境是我们的责任，因此有必要了解17-雌二醇(17β-estadiol，E_2)和雌酮(Estrone，E_1)等雌激素在人类活动中对海岸环境的实际影响。在假定河口混合含雌激素河水的混凝和共沉淀过程的基础上，通过城市河水和海水的混合实验考察了E2的行为。河水中的雌二醇会通过海水的混合和扩散作用扩散到沿海地区，由于人类每天都会排泄雌二醇类和雌二醇类的天然雌激素，污水中总是存在雌二醇类和雌二醇类的化合物。本研究以实际生活污水处理厂收集的城市污水和活性污泥为研究对象，通过间歇混合实验研究了E2和EL在吸附和分解过程中的去向。将污水中的E2和EL从与活性污泥接触的液相中去除，吸附在污泥上的E2EL在4h内被分解。天然雌激素吸附在活性污泥上，因此很容易被生物降解。此外，还研究了高潜力内分泌干扰物E_2和E_1在生物膜反应器系统中的行为。该系统实现了污水深度处理的脱氮。然而，生物法对E2和EL的去除效率分别低于70%和40%。虽然该系统成功地实现了深度处理，但对天然雌激素的去除效率低于常规活性污泥法。必须推进城市污水深度处理，改善水环境，同时要考虑到过程中雌激素的去向。

项目成果

浄化槽におけるエストロゲンの実態調査

化粪池雌激素状况调查

• 发表时间: 2005
• 期刊: 用水と廃水 47(3)
• 作者: 鈴木祥広;平良浩保;満山宗人;下津義博;丸山俊朗
• 通讯作者: 丸山俊朗

畜産排水処理施設におけるエストロゲンの実態調査

畜禽废水处理设施雌激素状况调查

• 发表时间: 2006
• 期刊: 水処理技術 47 (1)
• 作者: 鈴木祥広;中村孝洋;小山久男(他3名)
• 通讯作者: 小山久男(他3名)

Determination of sediment COD for the coastal environment investigation.

沿海环境调查中沉积物 COD 的测定。

• 发表时间: 2005
• 期刊: Journal of water and waste 47(12)
• 作者: Y.Suzuki;Y.Haramura;T.Nakamura;T.Maruyama
• 通讯作者: T.Maruyama

Removal od di-2-ethylhexyl phthalate (DEHP) from river water using dispersed bubbles.

使用分散气泡从河水中去除邻苯二甲酸二-2-乙基己酯 (DEHP)。

• 发表时间: 2006
• 期刊: Journal of Japan Society of Water environment 29(1)
• 作者: Y.Suzuki;Y.Ando;T;Maruyama;M.Mitsuyama;Y.Simotsu;K.Gomi;H.Mori;S.Kunikane
• 通讯作者: S.Kunikane

Behavior of natural estrogens in high-rate advanced treatment system.

天然雌激素在高速率先进治疗系统中的表现。

• 发表时间: 2005
• 期刊: Environmental Engineering Research 42
• 作者: Y.Suzuki;H.Taira;M.;T.Maruyama
• 通讯作者: T.Maruyama