| Water quality characteristics of rivers and ponds in Japan |
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| 作者姓名： | 幸彦 杜茂安 玄正 |
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| 作者单位： | [1]SchoolofMunicipalandEnvinomnentalEngineering,HarbinInstituteofTechnology,Harbin150001,China [2]Dept.ofCivilEngineering,CollegeofEngineering,NihonUniversity,Fukushima-ken963-8642,Japan |
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| 摘 要： | In Japan, various countermeasures have been taken to improve the water quality of public waters such as rivers and lakes. Though water quality has improved, it is still insufficient. In summer, eutrophication is seen in lakes and inner bays, as well as rivers. As a countermeasure to prevent eutrophication, the removal treatment of nutrient salts such as nitrogen and phosphorus is done, in addition to organic substance elimination in the domestic sewerage system. This report will show the water quality characteristics of rivers and ponds in Japan It is considered that these investigative results are effective when the water quality improvement of the stabilization ponds where eutrophication occurs are examined in China.
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| 关 键 词： | 水质特征 河流 池塘 富养化 氮 磷 水污染 环境保护 |
Water quality characteristics of rivers and ponds in Japan |
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| Yukihiko TAKAHASHI,DU Mao-an,Michimasa NAKAMURA.Water quality characteristics of rivers and ponds in Japan[J].Journal of Harbin Institute of Technology,2004,11(5):501-505. |
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| Authors: | Yukihiko TAKAHASHI DU Mao-an Michimasa NAKAMURA |
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| Affiliation: | 1. School of Municipal and Environmental Engineering,Harbin Institute of Technology, Harbin 150001 , China
2. Dept. of Civil Engineering, College of Engineering, Nihon University, Fukushima-ken 963-8642, Japan |
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| Abstract: | In Japan, various countermeasures have been taken to improve the water quality of public waters such as rivers and lakes. Though water quality has improved, it is still insufficient. In summer, eutrophication is seen in lakes and inner bays, as well as rivers. As a countermeasure to prevent eutrophication, the removal treatment of nutrient salts such as nitrogen and phosphorus is done, in addition to organic substance elimination in the domestic sewerage system. This report will show the water quality characteristics of rivers and ponds in Japan. It is considered that these investigative results are effective when the water quality improvement of the stabilization ponds where eutrophication occurs are examined in China. |
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| Keywords: | water quality characteristics eutrophication nitrogen and phosphorus stabilization ponds |
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