摘  要云龙湖是徐州市最大的景观湖。为了解水质状况,对云龙湖现状进行调查，共设置了5个采样点，运用钼酸铵分光光度法分析云龙湖东湖中的磷含量。结果表明：云龙湖东湖的总磷的最大值为0.083 mg/L，最小值为0.043 mg/L。对比各测点的磷含量值，云龙湖东湖的水上养殖区，水体属于Ⅳ类水，其余点达Ⅲ类水质标准。整体水质呈轻度污染状态，为进一步改善水质，必须采取有效措施控制磷含量。建议加强绿化，定期做好水质监测，合理限制人工养鱼，种植沉水植物和漂浮植物。69305

该论文有图8幅，表6个，参考文献13篇。

毕业论文关键词：钼酸铵分光光度法  磷含量  调查分析 

Investigation and Analysis of the Content of Phosphorus in the East Part of Yunlong Lake

Abstract Yunlong Lake is the largest lake of landscape in Xuzhou.In order to know the situation of water quality, the Yunlong Lake was investigated, 5 sampling sites were set. The content of phosphorus in water was monitored in ammonium molybdate spectro- photometric method. The results show that the maximum value of total phosphorus was 0.083 mg / L, the minimum value was 0.043 mg / L. The monitored values of total phosphorus were compared, aquatic breeding area of the east Lake, water belongs to the Ⅳ level of Water quality, and the remaining points belong to the Ⅲ level water quality. The overall water quality was slightly polluted, and effective measures should been taken to control the content of phosphorus to improve the water quality. I advice that greening should been strengthen, water quality should been monitored regularly, manpower fishery should been limited ,and submerged plants and floating plants can been planted.

Key Words: ammonium molybdate spectrophotometric method  the content of phosphorus  investigation and analysis

目录

摘要 Ⅰ

Abstract Ⅱ

目录 Ⅲ

图清单 Ⅳ

表清单 Ⅳ

1云龙湖现状调查 1

1.1概况 1

1.2水文和周边建筑环境基本情况 1

1.3水质调查 2

1.4污染源调查 2

2布点采样 3

3实验部分 3

3.1实验仪器和试剂 3

3.2实验原理 5

3.3实验方法 5

4结果与讨论 5

4.1吸收波长的选定 5

4.2显色条件的确定 6

4.3标准曲线的绘制 9

4.4水样磷含量的测定 9

5结论 10

6建议 11

参考文献 12

致谢 13

图清单

图序号 图名称 页码

图1-1 云龙湖平面示意图

1

图2-1 云龙湖取样布点示意图

3

图4-1 不同波长下磷标准使用液对应吸光度