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| From rainwater and sewage interception to separation system combined with low impact development reconstruction in urban built-up area:A water quality constrained scenario stimulation and programming. |
| WANG Shi1, CHEN Li-yuan1, SUN Xiang1, CHEN Liang2, HUANG Zhang-rong3, YAO Huan-mei1 |
1. College of Resources, Environment and Materials, Guangxi University, Nanning 530004, China;
2. College of Mathematics and Information Science, Guangxi University, Nanning 530004, China;
3. School of Computer, Electronics and Information, Guangxi University, Nanning 530004, China |
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Abstract In this study, SWMM model was coupled with scenario analysis approach to simulate urban rainfall-runoff and water quality under the dual constraints of water safety and quality at Guangming District of the Maozhou River Basin. The analysis results showed that there was an exponential relationship between the area of LID reformation and the pollutant reduction rate. In order to address the issue of the negative impacts of surface storm water run-off pollution on local river water quality, 30%, 85% and 20% of the total area were recommended to implement LID reconstruction at Ejing-yutian Unit, Maozhou-dadang Unit and Gongming-dadang Unit, respectively. Compared with building new sewage treatment plant, construction of sewage pipes to direct sewage water into existing sewage treatment plant had more economic benefits if the distance between the existing sewage treatment plant and the research area is less than 27.25km., and vice versa. In this study, the break-even time cost of rainwater and sewage separation reconstruction was between 27 and 64years. The proposed decision-making framework in this research has brought a new methodological perspective to treating waterlogging and black-odor in built-up area. It also can provide supplementary and useful information to the planning of water-environment management in Shenzhen and other similar areas.
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Received: 13 February 2017
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| Cite this article: |
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WANG Shi,CHEN Li-yuan,SUN Xiang等. From rainwater and sewage interception to separation system combined with low impact development reconstruction in urban built-up area:A water quality constrained scenario stimulation and programming.[J]. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(10): 3981-3990.
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| URL: |
| http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2017/V37/I10/3981 |
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