相关实验视频

Updated: Jul 7, 2025

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff

Published on: May 15, 2017

在与污水系统非法连接的雨水排水系统中识别高消耗氧气的物质

Chen Xu¹, Zuxin Xu¹, Wenhai Chu¹

¹State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Ministry of Education Key Laboratory of Yangtze River Water Environment, Tongji University, Shanghai 200092, China.

Journal of environmental sciences (China)

|December 22, 2023

概括

家庭污水,特别是氨基酸,在城市河流中大量消耗溶解氧气,导致黑色和臭水. 识别这些消耗氧气的物质对于有效的水质管理至关重要.

科学领域:

环境科学环境科学
评估水质水质的评估.
环境化学环境化学

背景情况:

溶解氧是水质的关键指标,对水生生态系统至关重要.
黑色和有臭味的水体在中国很常见,通常是由无氧和厌氧微生物活动增加引起的.
城市排水系统中的非法连接允许将消耗氧气的物质直接排放到河流中,耗尽溶解氧气.

研究的目的:

确定城市水体中主要消耗氧气的物质.
为了比较家庭污水和工业废水的氧气消耗能力.
为消耗氧气的物质建立有效的去除策略奠定基础.

主要方法:

水质指标的比较分析.
分析水样本的有机特性.
20种常规的自由氨基酸的氧气消耗比较.

主要成果:

国内污水表现出比工业废水更高的氧气消耗能力.
小分子氨基酸被确定为家用污水中主要消耗氧气的物质.
在20种自由氨基酸中,有7种被发现是容易消耗的氧.
生物氧气消耗比化学氧气消耗更为重要.

结论:

家庭污水中的氨基酸是城市河流中溶解氧耗尽的主要原因.
针对特定的氨基酸可能是一个有效的策略,以减轻黑色和臭水现象.
生物氧气消耗发挥着主导作用,突出了微生物过程在水质恶化中的重要性.

关键词:

氨基酸是氨基酸中的一种.国内污水处理国内污水处理消耗氧气的物质是消耗氧气的物质.城市排水系统城市排水系统

更多相关视频

Capturing Flow-weighted Water and Suspended Particulates from Agricultural Canals During Drainage Events

Capturing Flow-weighted Water and Suspended Particulates from Agricultural Canals During Drainage Events

Published on: November 7, 2017

Design and Construction of an Urban Runoff Research Facility

Design and Construction of an Urban Runoff Research Facility

Published on: August 8, 2014

相关概念视频

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.