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| 风车草对低污染水体氮磷的净化效能 |
| Purification effect of Cyperus alternifolius L. on low-polluted water |
| Received:February 12, 2021 |
| DOI：10.13254/j.jare.2021.0074 |
| 中文关键词: 低污染水，风车草，温度，降解动力学，日变化率 |
| 英文关键词: low-polluted water, Cyperus alternifolius L., temperature, degradation kinetics, diurnal variation |
| 基金项目:国家重点研发计划项目（2018YFC0406304）；科技基础性工作专项（2015FY110900） |
| Author Name | Affiliation | E-mail | | ZHANG Yunxiao | Institute of Coastal Environmental Pollution Control, College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Key Laboratory of Environmental Protection Agency for Lake Pollution Control, Institute of Lake Ecological Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | XU Jiamin | National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Key Laboratory of Environmental Protection Agency for Lake Pollution Control, Institute of Lake Ecological Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | LU Shaoyong | National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Key Laboratory of Environmental Protection Agency for Lake Pollution Control, Institute of Lake Ecological Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | lushy2000@163.com | | LI Fengmin | Institute of Coastal Environmental Pollution Control, College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China | | | ZHANG Yaru | National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Key Laboratory of Environmental Protection Agency for Lake Pollution Control, Institute of Lake Ecological Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | WANG Yongqiang | National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Key Laboratory of Environmental Protection Agency for Lake Pollution Control, Institute of Lake Ecological Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
School of Environment, Harbin Institute of Technology, Harbin 150090, China | | | LIU Xiaohui | National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Key Laboratory of Environmental Protection Agency for Lake Pollution Control, Institute of Lake Ecological Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
School of Environment, Tsinghua University, Beijing 100084, China | |
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| 中文摘要: |
| 为探讨湿地水生植物对低污染水体中氮磷的去除效果，以挺水植物风车草为研究对象，研究其对低污染水中氮、磷削减的日变化规律，及温度对净化效果的影响，并探究了系统中溶解性有机物的变化。结果表明：风车草对低污染水的氮、磷去除过程符合一级动力学方程，常温下（24~30℃）对TN、TP去除的一阶反应速率常数分别为0.449 3、0.502 8，70 h后对TN、TP的去除率高达82.87%、72.40%，日变化率分别为48.52%、40.31%，而低温（4~8℃）下风车草对氮、磷的去除效果明显受到抑制且根系活力显著降低；系统中溶解性有机物组分（紫外类腐植酸和类色氨酸）含量随时间延长而增加，相关性分析表明二者均利于水中氮磷的去除。研究表明，风车草对低污染水体中氮磷具有较好的净化效果，且其净化效能受温度的影响。 |
| 英文摘要: |
| This study aimed to explore the removal effect of wetland aquatic plants on nitrogen and phosphorus in low-polluted water, effect of temperature, and changes of dissolved organic matter. The first-order reaction rate constants for TN and TP were 0.449 3 and 0.502 8, respectively at room temperature(24~30℃), and the removal rates of TN and TP were as high as 82.87% and 72.40%, respectively after 70 h. Low temperatures(4~8℃) significantly inhibited the removal of nitrogen and phosphorus and significantly reduced the root vigor of plants. The dissolved organic matter, including UV humic acids and tryptophan, increased with time, and correlation analysis showed that both were beneficial for the removal of nitrogen and phosphorus from water. The results showed that Cyperus alternifolius L. had a good purification effect on nitrogen and phosphorus in low-polluted water, and its purification efficiency was affected by temperature. |
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