Comparison Study of Integrated Water Quality Restoration Solutions for Eutrophicated Urban Landscaping Lakes
The integrated restoration project in Lichee Lake in Shenzhen,China,is taken as a case study.The restoration project included a filtration unit,a bio - gravel aeration unit,an ozonation unit,and an artificial wetland unit.Based on one and half year field monitoring data,daily removal via filtration unit,bio- gravel aeration unit,and artificial wetland unit,respectively,on COD is 305 ± 159,173 ± 52,and 11 ± 3 kg/d; on ammonia is 4.6 ± 1.2,2.3 ± 1.2,and 0.04 ± 0.03 kg/d; on TP is 2187± 509,630 ± 129,and 43 ± 3 g/d; on TN is 135 ± 3906,216 ± 1194,and 79 ± 42 g/d.Daily removal via filtration unit,bio -gravel aeration unit,ozonation unit,and artificial wetland unit,respectively,on Chl a is 275 ± 171,120 ± 50,52 ± 31,and 25± 2 g/d; on turbidity is (34 ± 21 ) × 104,( 15± 4) × 104, ( - 5 ± 2 ) × 104,and ( 1 ± 0.08 ) × 104 NTU/d.The restoration project improved lake water quality from Grade Ⅴ for surface water to Grade Ⅳ and from hypertrophic status to eutrophic status.The restoration project can effectively control load of TP and TN but insufficient to control algal growth.
Eutrophication Urban Landscaping Lakes Integrated Restoration Solution Chlorophyll a Total Phosphorus Total Nitrogen
Tao yi Xiong J. James Zhang xihui Mao xian
Research Center for Environmental Engineering and Management, Graduate School at Shenzhen, Tsinghua AECOM Asia Co. Ltd. Grand Central Plaza, Tower 2, 11 Floor, Shatin, Hong Kong Research Center for Environmental Engineering and Management, Graduate School at Shenzhen, Tsinghua
国内会议
武汉
英文
1510-1514
2009-11-01（万方平台首次上网日期，不代表论文的发表时间）