We selected the Tanchong River in Hefei as the site to test the efficacy of graphene visible-light photocatalysis (GVLP), a new water treatment technology to improve water quality in black-odorous rivers in urban landscapes. A model coupling the hydrodynamic force and water quality of the Tanchong River was constructed using the MIKE11 model. The numerical simulation method was used to model the concentrations of the main pollutants—chemical oxygen demand (COD), ammonia nitrogen (NH₃–N) and total phosphorus (TP) concentrations. The simulation of water quality in the river section treated by GVLP was verified by the Tanchong River water quality improvement project experiment. The results showed that the MIKE11 model can effectively simulate the effect of GVLP technology on water quality improvement. The removal rates of the main pollutants'—COD, NH₃–N, and TP by GVLP were 43.9%, 82.1%, and 76.8%, respectively, thus proving GVLP's viability as a treatment for controlling water pollution in similar black-odorous rivers.

中文翻译：

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巢湖流域城市景观河流MIKE11模型模拟石墨烯可见光光催化改善效果

我们选择合肥潭冲河作为试验点，测试石墨烯可见光光催化（GVLP）的功效，这是一种改善城市景观中黑臭河流水质的新型水处理技术。采用MIKE11模型构建了潭冲河水动力与水质耦合模型。采用数值模拟方法对主要污染物——化学需氧量（COD）、氨氮（NH ₃–N) 和总磷 (TP) 浓度。GVLP处理的河段水质模拟通过潭冲河水质改善工程试验得到验证。结果表明，MIKE11模型可以有效模拟GVLP技术对水质改善的效果。GVLP对主要污染物COD、NH ₃ -N和TP的去除率分别为43.9%、82.1%和76.8%，证明了GVLP在控制类似黑臭河流水体污染方面的可行性.