Beijing Water Environment-邓卓智-2010.08.17.pptVIP

Ecological restoration for Yongding River Ecological restorationfor embankment 17.8 Km River Section of Yongding River Pre. Treatment Underflow Wetland =75ha Water purification and maintenance Vegetation revetment Aquatic plants Aquatic animals（20% water surface） Gabion Bed （石笼护底） Drop aeration（落差0.5-1.5m/个） Seepage Filtering （20-30mm/d） …… Stream Surface-flow Wetland =30hm2 Lake Reclaimed Water V=0.05m/s Qinghe Reclaimed Water Plant 15x104/d P.L. of R.W. Irrigation Circulating P.L.（卢三段分3段循环） Storm water Reuse Filtering Seepage Mayu W.L.10ha （Shijingshan D） N.D.H W.L.25ha （Shijingshan D） Hetan W.L.40ha（Fengtai D） Water surface Class III-IV Circulating duration Once every 20~30d Supply P.L.. P.L. of IRR. Underground Water Class III Evaporation Wetland River Process Flow Chart of Water Supply, Circulating , Purification and Maintenance Example： Chao River Waterfront forestry park There are 11 waterfront forestry parks covering more than 600 ha, which is being built in the suburb of Beijing since 2009. Conclusion Intercepting the sewage Cut off the source of the sewage, control the polluted area; Reducing the sewage Reduce the contaminant of the water by taking intensified measures; Making flow Through cyclic water pump station, artificial plug flow and aeration to strengthen the circulation and movement of the water; Transferring water Dispatch and manage the discharge of the rivers and supply the rivers to meet the ecological demands; Treating ecologically Throw aquatic animals into the river as purificant, such as fish or mussel, build up artificial wetland, cultivate plenty of aquatic plants in the river courses, and adopt advanced technology, such as bio-contact oxidation, and active carbon filtering, etc. to purify the water. Thank You * 北京市水利规划设计研究院 BeijingInstituteofWater 北京市水利规划设计研究院 BeijingInstituteofWater Beijing Water Environment北京的水环境 Beijing Institute of Water 地址：北京市海淀区车公庄西路21号 Tel:+86 10 Fax: +86 10 88823261