| This article has been：Browse 1737Times Download 1525Times |
scan it! |
|
|
| DOI：10.13522/j.cnki.ggps.20190106 |
|
| Effect of Artificial Floating Island Planting Aquatic Plants on the Purificationment of Water Quality in Baotou NanHai Wetland |
|
YANG Wenhuan, MIAO Chenxiao, WANG Zhichao, ZHANG Mingyu, JIAN Guanglin, LI Weiping
|
|
1.School of Energy and Environment, Inner Mongolia University of Science and technology, Baotou 014010, China;2.Baotou Nanhaizi Wetland Reserve Management Office, Baotou, 014010, China; 3. Baotou City Ecological Wetland Protection and Management Center, Baotou 014010, China.
|
| Abstract: |
| 【Objective】This paper aims to solve the problem of nutrient enrichment of nitrogen and phosphorus in the Nanhai wetland of Baotou and improve the water quality of the Nanhai wetland in Baotou. 【Method】From July 2017 to September 2017, an artificial floating island constructed by three kinds of aquatic plants, either alone or in combination, was constructed in the wetland, and the water quality of the floating island was tracked and monitored. 【Result】After 92 days of trial treatment, the Cyperus alternifolius?L had the best removal effect on TN, and the removal rate was 36.04%, which could increase the TN mass concentration in the water body to the surface water V standard; using Cyperus alternifolius L+Scirpus validus Vahl+Lythrum salicariato L, TP had the best removal effect, the removal rate was 41.61%, which could increase the TP concentration in water from the surface water V standard to the IV standard. The best CODcr removal effect was found in the Cyperus alternifolius L+Scirpus validus Vahl+Lythrum salicariato L, the removal rate was 27.01%. Cyperus alternifolius?L had the best inhibitory effect on planktonic algae, which could effectively inhibit the filamentous algae. 【Conclusion】The artificial floating islands of mixed plants had better effects on removing nitrogen, phosphorus and other organic matter than single artificial floating islands, especially the artificial floating islands composed of the Cyperus alternifolius?L, Scirpus validus Vahl and Lythrum salicariato L. had best effect. Cyperus alternifolius?L, Scirpus validus Vahl and Lythrum salicariato L could be promoted and applied as floating island cultivation plants for the eutrophication prevention and control of the Nanhai wetland in Baotou. |
| Key words: artificial floating island; aquatic plants; water quality standard; Baotou Nanhai; wetland |
|
|
