含盐废水对黄菖蒲光合特性及去除氮能力的影响
毕业论文关键词：菖蒲；NaCl；含盐废水；光合特性
Research on the effect of Iris’s nitrogen removal capability and photosynthetic characteristics in salt wastewater
Abstract: Since the 1960s, domestic and foreign scholars have been carried out using higher aquatic plant wastewater purification experiment, in recent years, due to changes in water pollution has been pressing environmental problems, Utilization of aquatic plants purify water become an efficient and low consumption. The experiments for the study of the iris photosynthetic characteristics in saline wastewater and its ability to remove nitrogen, the experimental design of the six groups were controlled manner using soilless culture on growth and nitrogen iris under saline water conditions the study. Each group of nitrogen and salt content of each seedling was not exactly the same and can be contrasted with each other. For example, plants containing salt under the same conditions and photosynthetic
characteristics of different physiological conditions when the concentration of nitrogen. The results show that, at a 2% concentration of environmental conditions, the net photosynthetic rate decreased, low nitrogen content of plants better than the high nitrogen content of the plants in the various aspects of physiological traits, but with the progress of the experiment, including several groups of experimental salt due to the lack of chlorophyll, water absorption and loss elements, photosynthesis tends to 0, but the ability to remove nitrogen not great.
Keywords：Iris；NaCl；saline wastewater；photosynthetic characteristics
目 录
1绪论 1
1.1 研究背景 1
1.2我国水体富营养化现状 1
1.3水体富营养化来源 1
1.4水生植物 2
1.4.1挺水植物 2
1.4.2实验材料介绍 2
1.5水生植物的净化机理 2
1.5.1 水生植物的自身性状及其抗性能力 3
1.5.2 水生植物的吸收，富集作用 3
1.5.3水生植物的沉降、吸附和过滤作用 3
1.6运用水生植物进行水体净化的研究进展 3
1.6.1 对氮、磷等营养物质的去除 4
1.6.2 对污水中盐的去除 4
1.7国内外研究进展 4
1.8选题意义 4
2 研究内容与试验方法 6
2.1 试验材料与处理 6
2.1.1 试验材料与试验条件 6
2.1.2 试验时间及地点 6
2.1.3 试验主要应用仪器 6
2.1.4 试验主要应用试剂 6
2.2 试验方案 6
2.2.1 试验设计 6
2.2.2 NACL、NH4-H处理表： 8
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