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Investigation Research of Effectiveness of Blue-green Algae Growth Control in Chinese Lakes as a Model Case

以中国湖泊蓝藻生长控制为例的有效性调查研究

基本信息

批准号：
15254003
负责人：
INAMORI Yuhei
金额：
$ 28.87万
依托单位：
National Institute for Environmental Studies
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15254003/
关键词：
Asian countries Eutrophic lake Bio-Eco Engineering Effect in preventing growth of blue-green algae Unpowered anaerobic filter bed Soil-trench treatment facilit Cylindrical intermittent aeration water pumps Toxic blue-green algae 高度処理浄化槽

项目摘要

We obtained the following empirical results for consideration in formulating measures to reduce the load on the aquatic environment in the target lakes of Guizhou Province of China as a case study. It is possible to reduce concentrations of nitrogen and phosphate in treated domestic wastewater to less than 20mg・1^<-1> and less than 1mg・1^<-1>, respectively, in a stable manner by optimizing management and maintenance, which includes eliminating waste sludge from advanced Johkasou systems. It is possible to reduce concentrations of nitrogen and phosphate to less than 10mg・1^<-1> and less than 0.5mg・1^<-1>, respectively, through optimal operation of the unpowered anaerobic filter beds of soil-trench domestic wastewater-treatment facilities (30m^3・d^<-1>, while pursuing energy conservation. It is possible to reduce by 60 percent of the concentration of chlorophyll-a at dam sites by controlling algal growth through the operation of cylindrical intermittent aeration pumps. To reduce existing concentrations of toxic blue-green algae it is possible to keep the population density of Ceriodaphnia dubia, a predator that is present during, filtration, at a high level by increasing the level of aquatic vegetation. With a view to introducing Bio-Eco Engineering, we also conducted a survey of the current situations in the lakes of neighboring countries. We found that the existing amounts of blue-green algae in these lakes have reached 150,000cells・ml^<-1>, and that problems with water utilization are growing obvious because of the increasing amounts of toxic blue-green algae, as in the eutrophic lakes in China. We clarified the fact that eliminating nitrogen and phosphate through the application of Bio-Eco Engineering, which works well to prevent the growth of toxic blue-green algae, is very important to control eutrophication in these aquatic environments. The methods described above are expected to be very useful.

以中国贵州省目标湖泊为例，我们获得了以下实证结果，供制定减轻水环境负荷措施时参考。通过优化管理和维护，包括消除先进净化槽系统的废污泥，可以稳定地将处理后的生活废水中的氮和磷酸盐浓度分别降至20mg·1^<-1>以下和1mg·1^<-1>以下。通过土沟式生活污水处理设施（30m^3·d^<-1>）无动力厌氧滤床的优化运行，在追求节能的同时，可将氮、磷浓度分别降低至10mg·1^<-1>以下、0.5mg·1^<-1>以下。可降低60%的氮、磷浓度。通过运行圆柱形间歇式曝气泵来控制藻类生长，从而控制坝址处的叶绿素-a。为了减少有毒蓝绿藻的现有浓度，可以通过增加水生植被的水平来将过滤过程中存在的捕食者 Ceriodaphnia dubia 的种群密度保持在较高水平。为了介绍生物生态工程，我们还进行了一项调查邻国湖泊现状。我们发现，这些湖泊中蓝藻的现存量已达到15万个细胞·ml^<-1>，与中国的富营养化湖泊一样，有毒蓝藻数量不断增加，水利用问题日益突出。我们澄清了一个事实，即通过施用消除氮和磷生物生态工程可以很好地防止有毒蓝绿藻的生长，对于控制这些水生环境的富营养化非常重要。预计上述方法将非常有用。

项目成果

期刊论文数量（69）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

水環境健全化のための開発途上国の国情に合った処理技術

适合发展中国家国情的改善水环境的处理技术

DOI：
发表时间：
2003
期刊：
用水と廃水 45・10
影响因子：
0
作者：
Shiokawa;K.;K.Yago;K.Yumoto;D.G.Baishev;S.I.Solovyev;F.J.Rich;S.B.Mende;稲盛悠平
通讯作者：
稲盛悠平

Production of hepatotoxin cylindrospermopsin in the batch culture of cyanobacterium Cylindrospermopsis raciborskii

分批培养蓝藻Cylindrospermopsis raciborskii生产肝毒素Cylindrospermopsin

DOI：
发表时间：
2005
期刊：
Japanese Journal of Water Treatment Biology 41(3)
影响因子：
0
作者：
Sorimachi A.;Sakamoto K.;Ishihara H.;Fukuyama T.;Utiyama M.;Liu H.;Wang W.;Tang D.;Dong X.;Quan H.;N.Fujimoto
通讯作者：
N.Fujimoto

林紀男: "フロート式水耕栽培浄化法の開発途上国への展開"用水と廃水. 45・10. 100-107 (2003)

Norio Hayashi：“在发展中国家部署浮动水培净化方法”水和废水45・107（2003）。