西安市汉城湖景观水水质检测与评价

Detection and evaluation of landscape water quality of Hancheng Lake in Xi'an

以汉城湖景区水域的天汉雄风浮雕、大风阁、安门广场3处为代表性采样点,按一年的四个季节分别采集水样,对其景观水主要指标进行了检测与分析。结果表明:水样的温度、浊度、pH值、KMnO_4指数(COD)、NH_3-N、总铁和总镍的含量均在A类水质标准含量的范围之内,漂浮物、总铜、总锌等指标已超出景观娱乐用水水质A类标准最低要求,尤其是总铜的含量超出C类标准含量,阴离子表面活性剂的含量高于C类标准含量的5倍,为此,判定水样整体属于C类级别。同时,分析了造成主要指标项目超标的可能原因,并提出了相应的改善建议与具体措施。

In this paper,in the Hancheng Lake Scenic Area of the waters of the Han Feng relief, wind Pavilion, Anmen Square three representative sampling points, according to the four season of the year the water samples were collected, the main factors of the landscape water were measured and analyzed. The results show that the temperature, turbidity, pH value of water samples, Potassium Permanganate index （COD）, content of ammonia nitrogen, total iron and nickel are within the scope of a quality standard of content, floater, total copper, total zinc and other indicators have exceeded the landscape recreational water quality class a standard minimum requirements, especial- ly the content of total copper beyond the content of the standard C class, 5 times, the content of anionic surfactant was higher than that of the standard C class to determine the overall level of water belongs to the C class. At the same time, the paper analyzes the possible causes of exceeding standard of main indexes, and puts forward corresponding improvement suggestions and concrete measures.