洱海流域多塘湿地工程综合效果评价

李丹; 郑丙辉; 储昭升; 汪星; 黄民生

doi:10.3969/j.issn.1000-5641.2021.04.002

洱海流域多塘湿地工程综合效果评价

doi: 10.3969/j.issn.1000-5641.2021.04.002

李丹^{1, 2,},
郑丙辉^{1, 2},
储昭升²,
汪星²,
黄民生^1, ,

1.
华东师范大学生态与环境科学学院上海　200241
2.
中国环境科学研究院湖泊水污染治理与生态修复技术国家工程实验室北京　100012

基金项目: 国家科技重大专项(2017ZX07207001, 2018ZX07208008)

详细信息

作者简介:
李丹：李　丹, 女, 博士, 研究方向为水环境治理与修复. E-mail: lidan01@craes.org.cn

通讯作者:
黄民生, 男, 教授, 博士生导师, 研究方向为水环境治理与修复. E-mail: mshuang@des.ecnu.edu.cn

中图分类号: X522
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- 文章访问数: 122
- HTML全文浏览量: 73
- PDF下载量: 1
- 被引次数: 0
出版历程
- 收稿日期: 2021-01-06
- 刊出日期: 2021-07-25

Comprehensive evaluation of engineering applications for multi-pond constructed wetlands in Erhai Lake Basin

LI Dan^{1, 2
,},
ZHENG Binghui^{1, 2},
CHU Zhaosheng²,
WANG Xing²,
HUANG Minsheng^{1
, ,}

1.
School of Ecological and Environmental Sciences, East China Normal University, Shanghai　200241, China
2.
National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Science, Beijing　100012, China

摘要

摘要: 为建立集成化多塘湿地(Multi-pond Constructed Wetlands, MPCWs)多维度评价体系, 选取污染物净化能力、污水蓄积性能、植被生态修复效果及经济成本为指标, 采用等级评价方法评估了多塘湿地工程的综合效果. 结果表明: 大规模集成化多塘湿地应用于面源污染控制, 有助于污染物的截留. 净化后的中水便于农村农业就近用水, 可实现节水减污、水资源调配及污水回用; 多塘湿地植被配置有助于植被生态修复, 有助于污水净化. 基于多塘湿地不同功能需求, 综合考虑经济成本及深水湿地安全隐患大等因素, 提出了不同类型多塘湿地的应用建议. 水量小、污染重、人口多的区域可匹配浅水表流湿地; 水量大、污染重、人口少的区域可匹配生态浮床湿地. 兼顾土地资源禀赋、污染源结构、农村农业用水资源分配等多种因素可实现不同类型多塘湿地的科学应用.
- 多塘湿地 /
- 等级评价 /
- 多重功能 /
- 工程效果
Abstract: In this study, the rank evaluation method was used to comprehensively assess engineering applications for integrated multi-pond constructed wetlands (MPCWs) using a multi-dimensional evaluation system. We used pollutant purification performance, sewage storage capacity, vegetation ecological restoration, and economic investment as indicators for the evaluation. The results showed that the application of large-scale integrated MPCWs for controlling non-point source pollution was helpful for intercepting pollutants. Accumulated and purified reclaimed water was available for nearby rural agricultural water use. The implementation of MPCWs can result in water savings, pollution reduction, water resource allocation, and sewage reuse. The inclusion of vegetation within MPCWs was beneficial for ecological vegetation restoration and sewage purification. Given the economic investment requirement for MPCWs and the high potential security risks of deep-water MPCWs, we proposed application suggestions for different groups of MPCWs based on functional requirements. Shallow free water surface flow constructed wetlands could be used in populous areas with small volumes of highly polluted water, and eco-floating treatment wetlands could be used in sparsely populated areas with large volumes of highly polluted water. The scientific application of different groups of MPCWs also requires consideration of other factors, such as local special land resource endowments, pollution source structures, and the allocation of rural agricultural water resources.
- multiple-pond constructed wetlands /
- rank evaluation /
- multiple functions /
- engineering application

HTML全文

图 1 多塘湿地的点位分布图

Fig. 1 The distribution of multi-pond constructed wetland sites

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图 2 多塘湿地净化性能评价

Fig. 2 Evaluation of pollutant removal performance in multi-pond constructed wetlands

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图 3 多塘湿地蓄水性能评价

Fig. 3 Evaluation of storage capacity of multi-pond constructed wetlands

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图 4 多塘湿地植被生态修复性能评价

Fig. 4 Evaluation of vegetation ecological restoration ability of multi-pond constructed wetlands

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图 5 多塘湿地经济成本评价

Fig. 5 Evaluation of economic investment required for multi-pond constructed wetlands

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图 6 多塘湿地工程综合效果评价

Fig. 6 Comprehensive evaluation of engineering applications for multi-pond constructed wetlands

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表 1 多塘湿地净化性能归一化等级赋值

Tab. 1 Normalized rank assignment of the purification performance of multi-pond constructed wetlands

取值	R_RE/%	M_MRR/(mg·m^–2·d^–1)			M_MRRV/(mg·m^–3·d^–1)
取值	R_RE/%	TN	TP	COD_Cr	TN	TP	COD_Cr
1	[0, 10]	[0, 100]	[0, 5]	[0, 500]	[0, 100]	[0, 5]	[0, 500]
2	(10, 30]	(100, 500]	(5, 25]	(500, 1500]	(100, 400]	(5, 25]	(500, 1500]
3	(30, 60]	(500, 1000]	(25, 50]	(1500, 3000]	(400, 800]	(25, 50]	(1500, 3000]
4	(60, 90]	(1000, 2000]	(50, 100]	(3000, 5000]	(800, 1500]	(50, 100]	(3000, 5000]
5	(90, 100]	(2500, ﹢∞)	(100, ﹢∞)	(5000, ﹢∞)	(1500, ﹢∞)	(100, ﹢∞)	(5000, ﹢∞)

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表 2 其他指标归一化等级赋值

Tab. 2 Normalized rank assignment of other indicators

取值	容积/(10⁴·m³)	植被覆盖率/%	建设成本/(万元)	运维成本/(万元·a^–1)
1	[0, 0.1]	[0, 10]	(0, 25)	(0, 0.5)
2	(0.1, 0.5]	(10, 25]	[25, 50)	[0.5, 1)
3	(0.5, 1]	(25 50]	[50, 75)	[1, 1.5)
4	(1, 5]	(50, 85]	[75, 100)	[1.5, 2)
5	(5, ﹢∞]	(85, 100]	(100, ﹢∞)	[2, ﹢∞)

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表 3 4类多塘湿地的应用建议

Tab. 3 Application characteristics for four groups of MPCWs

类型	特点功能					适用区域特点			参数配置建议
类型	净化	蓄水性	安全风险	经济成本	运维程度	水量	污染	人口	R_HLR/(m³·m^–2·d^–1)	植物种植方式	植物种类
浅水表流湿地	良	小	低	低	易	小	重	多	＜0.2	混合/单一种植	矮小型/高大型
中水深表流湿地	中	中等	一般	一般	易	中等	中等	中等	＜0.4	混合种植	高大型
深水塘湿地	差	大	大	较高	易	大	轻	少	＜0.6	混合种植	漂浮植物/高大型
生态浮床湿地	优	大	大	高	难	大	重	少	＜0.6	混合/单一种植	经济农作物

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