胶州湾大沽河口邻近海域海水水质预测

Prediction of water quality adjacent sea area of Daguhe Estuary in Jiaozhou Bay

通过对胶州湾水质现状的数值模拟 ,预测了胶州市城市污水处理场建成后 ,在正常运行和事故情况下大沽河口邻近海域的水质。预测结果表明 :在污水处理场正常运行情况下 ,除大沽河入海口很小面积范围内超二类海水水质标准 ,邻近其他海域皆不超二类海水水质标准 (GB 30 97 1997) ,但在事故情况下 ,大沽河邻近海域超二类海水水质标准的面积较大 ,且有超四类海水水质标准的区域。因此 ,要确保大沽河口邻近海域水质的改善 ,污水处理场的正常运行是关键。

Domestic and industrial waste water of Jiaozhou is discharged into Jiaozhou Bay through Daguhe Estuary. It impacts on the water quality around adjacent sea areas of the river mouth. Through the simulation of current water quality in Jiaozhou Bay, the prediction of the water quality in two cases was made: during the wastewater treatment plant of Jiaozhou in normal conditions and accidents. The predictive results show that the water quality around Daguhe Estuary mouth was not begond exceed the second standard of water quality except in the area extremely close to the river mouth when the plant was under normal ranning. But during accidents, the area where the water quality exceds the second standard would be larger. Further more there would have areas exceeding the fourth standard water quality. In order to improve the water quality, the wastewater treatment plant should, therefore, be much more available.