滨江游乐场人工湖水体富营养化整治措施研究  

Research on eutrophication treatment methods of artificial lake in riverside playground

作　　者：邵咏絮 逄勇[1,2] 宋为威 SHAO Yongxu;PANG Yong;SONG Weiwei(Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes,Ministry of Education,Hohai University,Nanjing 210098,China;College of Environment,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098 [2]河海大学环境学院,江苏南京210098

出　　处：《水资源与水工程学报》2018年第6期113-121,共9页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金项目(51179053);江苏高校优势学科建设工程项目;江苏省研究生科研与实践创新计划项目(KYCX17_0417)

摘　　要：针对我国城市河流水体污染严重、富营养化频发等突出问题,以镇江市典型游乐场景观河流魔幻海洋世界为例,构建粒子追踪、水动力和水质及富营养化数值模型,模拟了无引水、泵引、自引对水动力、水质的改善情况,结果表明:粒子在3种风向下的停留时间为东风>东南风>南风,其中粒子在东风下最大停留时间为125 h,在东南风下最大停留时间为115 h,在南风下最大停留时间为95 h;无引水时,3个风向条件下中心景观湖区流速均较小,沿岸水深较浅处受风速影响较大,在不同风向下呈现出稍大流速;泵引时,连续泵引30 h的水质好于20 h;自引时,引江河道与人工湖水位差Δh越大,人工湖水质越好。Aiming at solving the outstanding problems such as the serious pollution of urban rivers in China and the frequent occurrence of eutrophication,a numerical model of particle tracking,hydrodynamics,water quality and eutrophication was constructed.Taking the Magical Ocean World,a typical playground landscape river in Zhenjiang City as an example,the improvement of hydrodynamics and water quality without water diversion,pumping,and self-diversion was simulated.The results showed that the residence time of particles in the three winds was east wind>southeast wind>south wind.The maximum residence time of particles in the east wind was 125 h,the maximum residence time in the southeast wind was 115 h,and the maximum residence time in the south wind was 95 h.When there is no water diversion,the velocity of the central landscape lake area was smaller under the three wind field conditions,and the water depth at the coast was more affected by the wind speed than at the shallow depth,and slightly higher velocity was shown downward in different winds.With pumping,the water pumped continuously for 30 h was better than that of 20 h.For self-diversion,the greater the differenceΔh between the water level of the river and the artificial lake,the better the water quality of the artificial lake.

关 键 词：水动力 数值模拟 富营养化 景观用水 

分 类 号：X524[环境科学与工程—环境工程]