滇池有机污染物(COD)特征与来源解析

闫晗; 王胜楠; 陈卓; 刀国华; 沈谟禺; 郭洪发; 杨姣姣; 朱宇; 潘珉; 胡洪营

doi:10.13205/j.hjgc.202407012

滇池有机污染物(COD)特征与来源解析

doi: 10.13205/j.hjgc.202407012

闫晗¹,
王胜楠¹,
陈卓¹,
刀国华²,
沈谟禺¹,
郭洪发¹,
杨姣姣^3,4,
朱宇^3,4,
潘珉^3,4,,
胡洪营^1,5,

1. 清华大学环境学院环境模拟与污染控制国家重点联合实验室国家环境保护环境微生物利用与安全控制重点实验室环境前沿技术北京实验室, 北京 100084;
2. 昆明理工大学环境科学与工程学院, 昆明 650500;
3. 昆明市滇池高原湖泊研究院, 昆明 650228;
4. 滇池湖泊生态系统云南省野外科学观测研究站, 昆明 650228;
5. 清华苏州环境创新研究院, 江苏苏州 215163

基金项目:

国家重点研发计划(2020YFC1806302)

昆明市科技计划(YSZJGZZ2020018)

详细信息

作者简介:
闫晗(1994-),男,助理研究员,主要研究方向为水污染治理。yanhanhj@mail.tsinghua.edu.cn

通讯作者:
潘珉(1978-),女,高级工程师,主要研究方向为湖泊生态学。panmin333@foxmail.com

胡洪营(1963-),男,教授,主要研究方向为再生水生态利用。hyhu@tsinghua.edu.cn

计量
- 文章访问数: 52
- HTML全文浏览量: 15
- PDF下载量: 4
- 被引次数: 0
出版历程
- 收稿日期: 2023-03-10
- 网络出版日期: 2024-12-02

CHARACTERISTICS OF ORGANIC POLLUTANTS (COD) AND THEIR SOURCE IN DIANCHI LAKE

1. Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), Beijing Laboratory for Environmental Frontier Technologies, School of Environment, Tsinghua University, Beijing 100084, China;
2. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China;
3. Kunming Dianchi and Plateau Lakes Institute, Kunming 650228, China;
4. Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming 650228, China;
5. Research Institute for Environmental Innovation (Suzhou) Tsinghua, Suzhou 215163, China

摘要

摘要: 目前,滇池仍然存在有机污染压力,全面解析湖体化学需氧量(COD)特征和有机污染物来源,将有助于滇池的精准治理与污染防控。通过三维荧光光谱法分析滇池湖体有机物特征,并通过质量衡算分析2020年全年有机污染输入输出量。结果表明,滇池外海东部和西部的COD浓度较高,湖体有机质呈现自源性特征。全年有机污染输入总量约43648 t。其中,城市面源和微藻分泌的有机污染输入量分别占输入总量的34.6%和31.4%,是最主要输入源。输入总量的18.9%会积累在湖体中。为缓解滇池有机污染,需要加强城市面源控制、微藻捕捞和底泥疏浚等方面的措施。该结果将为滇池有机污染治理提供理论支持。
- 滇池 /
- 有机污染 /
- 有机物组分 /
- 三维荧光 /
- 质量衡算
Abstract: Organic pollution is still prevalent in Dianchi Lake. A comprehensive understanding of the characteristics and sources of chemical oxygen demand (COD) would contribute to the precise management and pollution prevention. The present work employed three-dimensional fluorescence spectroscopy to analyze the organic matter characteristics in Dianchi Lake and utilized mass balance calculations to assess the annual input and output of organic pollution in 2020. The results revealed that the COD concentrations were relatively higher in the eastern and western regions of Waihai, and the organic matter of the lake exhibited autogenous characteristics. The total input of COD throughout the year was estimated to be approximately 43648 tons. Urban non-point source pollution and carbon fixation by microalgae were the main inputs and accounted for 34.6% and 31.4% of the total input volume, respectively. Furthermore, 18.9% of the total input accumulated within the lake. To mitigate organic pollution in Dianchi Lake, measures such as strengthening urban runoff control, microalgal harvesting, and sediment dredging were necessary. These findings provided theoretical support for the management of organic pollution in Dianchi Lake.
- Dianchi Lake /
- organic contamination /
- organic components /
- three-dimensional fluorescence /
- mass equilibrium

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