数值模拟研究在株洲市黑臭水体治理中的应用

Application of Numerical Simulation in Black&Odorous WaterTreatment in Zhuzhou

株洲市建宁港和果园支渠为轻度黑臭水体,且排口多、流动性差、治理工程量大,下雨容易出现返黑、返臭现象。为更好给建宁港和果园支渠黑臭水体治理工程方案的确定和实施提供参考依据,采用MIKE2D水动力-水质耦合模型对建宁港和果园支渠沿线进行模拟,通过对不同生态补水方案下的补水量对建宁港和果园支渠消除黑臭及达到GB 3838—2002《地表水环境质量标准》Ⅴ类水的治理效果进行分析,表明雨后对建宁港和果园支渠进行生态补水可以有效消除黑臭,改善水体水质;且建宁港和果园支渠均能在补水短时间内达到地表水Ⅴ类水标准。

Jianning Port&Orchard Branch Canal in Zhuzhou are light black&odorous water bodies,with many outlets,poor fluidity&large treatment quantities.It is easy to return black&odorous in rain.To better provide reference basis for the determination&implementation of the black&odorous water treatment project scheme of Jianning Port&Orchard Branch Canal,MIKE 2D hydrodynamic water quality coupling model is used to simulate Jianning Port&Orchard Branch Canal.Through the analysis of the treatment effect of different ecological water replenishment schemes on Jianning Port&Orchard Branch Canalto eliminate black&odorous water and reach the Class V water in GB 3838—2002 Environmental Quality Standard for Surface Water,it shows that ecological water replenishment for Jianning Port&Orchard Branch Canal after rain can effectively eliminate black&odorous water and improve water quality;Jianning Port&Orchard Branch Canal can meet the Class V water standard of surface water in a short time.