毕业论文移动版

摘要：为了考查建筑废砖作为人工湿地的填充基质对人工湿地处理含铜废水的效果，本课题在温室中用裁剪过的4L塑料容器模拟人工湿地，以建筑废砖作为填充材料，以菖蒲作为植物材料，废水采用人工配制的含铜溶液，溶液pH设定为5，湿地运行6周。通过测定菖蒲的叶绿素相对含量、光合特性（净光合速率、气孔导度、蒸腾速率）以及对铜离子吸收能力等生理生化指标，来研究建筑废砖作为湿地填充基质的可行性,实验结果如下：81208

1)菖蒲叶绿素相对含量测定结果表明，在实验初期，受含铜溶液的影响，两组叶绿素相对含量都有略微的下降，但随着时间的迁移，以建筑废砖作为湿地填充基质的实验组，其叶绿素相对含量不断上升，而对照组不含砖组，则明显下降。由此可见，建筑废砖能够促进菖蒲的生长，对菖蒲的相对叶绿素含量有提高作用。

2)菖蒲净光合速率、气孔导度、蒸腾速率三组数据测定结果表明，在硫酸铜的胁迫下，植物的光和特性理应下降，但是由于植物的自身代谢能力，一开始并不会受到过多的影响，不过随着时间的推移，两组的差距则越发明显，不含砖组的植物长势越来越差，其光合特性也随之下降，相反的，含砖则没有表现出明显的下降趋势，反而呈上升状态，光和作用正常进行，植物的生长并没有受到过多的影响。

3)菖蒲对铜离子吸收能力测定结果表明，在实验前期，由于菖蒲自身的调节代谢能力，溶液中的部分铜离子被其吸收，因而两组溶液中的铜离子含量都不高，但是在第三周的时候，不含砖组中的铜离子含量急剧升高，说明此时的菖蒲对铜离子的吸收已经超负荷，无法大量吸收铜离子，导致最后几周溶液中的铜离子含量居高不下，菖蒲也状况也每况愈下。而以建筑废砖作为湿地填充基质的实验组仍能正常生长。

综上所述：建筑废砖有益于菖蒲生长，对菖蒲的叶绿素相对含量、光合特性都有促进作用，还能提高菖蒲对含铜废水的净化能力。因此将建筑废砖作为湿地填充基质，不仅减少不当地处理所造成的环境污染，同时能够避免资源浪费，充分发挥其价值。

毕业论文关键词: 建筑废砖、菖蒲、含铜废水、生理特性

Effects of Building Waste Bricks on the Growth and Treatment of Copper - containing Wastewater

Abstract: In order to study the effect of constructed waste brick as the filling matrix of constructed wetland on the treatment of copper-containing wastewater by artificial wetland, this paper simulated the artificial wetland in the greenhouse with the cut 4L plastic container as the filling material, Plant materials, waste water using artificial preparation of copper solution, the solution pH set to 5, wetlands run for 6 weeks。 The feasibility of the waste bricks as a wetland was studied by measuring the relative chlorophyll content, photosynthetic characteristics (net photosynthetic rate, stomatal conductance, transpiration rate) and physiological and biochemical indexes of copper ion absorption capacity。 The experimental results are as follows:

1) The results showed that the relative contents of chlorophyll in the two groups decreased slightly at the beginning of the experiment, but with the time of migration, the construction waste brick was used as the experimental group of wetland filling medium。 , The relative content of chlorophyll increased, while the control group without brick group, then decreased significantly。 It can be seen that the construction of waste bricks can promote the growth of calamus, calamus on the relative chlorophyll content has improved。

2) The net photosynthetic rate, stomatal conductance and transpiration rate of calamus were measured。 The results showed that under the stress of copper sulfate, the light and characteristic of plants should be decreased, but because of the plant's own metabolic ability, But the gap between the two groups is becoming more and more obvious, and the plant growth is not getting worse and the photosynthetic characteristics of the two groups are declining。 On the contrary, the bricks are not showing obvious Declining trend, but showed a rising state, light and the role of normal, the growth of plants has not been affected too much。 (责任编辑：qin)