[1]李婷婷,周政,柴晓利.超微曝气抑制黑臭底泥污染释放的效果[J].中国给水排水,2025,41(5):102-107.
　LITing-ting,ZHOUZheng,CHAIXiao-li.Impact of Ultra-micro Aeration on Suppressing the Release of Pollutants from Black Odorous Sediment[J].China Water & Wastewater,2025,41(5):102-107.
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超微曝气抑制黑臭底泥污染释放的效果

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第5期 页码: 102-107 栏目: 出版日期: 2025-03-01
Title:
Impact of Ultra-micro Aeration on Suppressing the Release of Pollutants from Black Odorous Sediment
作者:
李婷婷1， 周政1， 柴晓利1,2
（1.同济大学 环境科学与工程学院，上海 200092；2.上海污染控制与生态安全研究所，上海 200092）
Author(s):
LI　Ting-ting1， ZHOU　Zheng1， CHAI　Xiao-li1，2
（1. College of Environmental Science and Engineering， Tongji University， Shanghai 200092， China； 2. Shanghai Institute of Pollution Control and Ecological Security， Shanghai 200092， China）
关键词:
黑臭底泥;  超微曝气;  内源污染;  复氧
Keywords:
black odorous sediment;  ultra?micro aeration;  endogenous pollution;  reoxygenation
摘要:
为了了解超微曝气在黑臭水体修复中对内源污染物释放的抑制效果，采用小试分析了超微曝气和鼓风曝气对底泥上覆水水质、复氧速率及微生物群落多样性的影响。结果表明，曝气能够削减黑臭底泥中内源污染物TOC、NH3-N的浓度，削减率分别为71.01%和48.66%，均高于鼓风曝气组。在对上覆水充分曝气的条件下，上覆水中致臭物质含量降至检测限以下。由于超微曝气具有超微气泡在水中停留时间更长、更易附着在底泥表面的特点，对水体复氧的持久性更高。此外，超微曝气显著降低了底泥中厌氧微生物丰度，提高了以脱硫杆菌（Desulfobacterota）和酸杆菌门（Acidobacteriota）等为代表的好氧菌门丰度，从而实现对河道内源污染物的削减和释放抑制。
Abstract:
This study analyzed the effects of ultra-micro aeration and blast aeration on sediment overlying water quality, reoxygenation rate, and microbial community diversity in a laboratory experiment, so as to investigate the inhibition effect of ultra-micro aeration on the release of endogenous pollutants in black odorous water bodies. The TOC and NH3-N in black odorous sediment were significantly reduced through aeration, with reduction efficiencies of 71.01% and 48.66%, respectively. These reduction efficiencies were higher compared to those observed in the blast aeration group. Under full aeration conditions, the concentration of odorous compounds in the overlying water was reduced to below the detection limit. The ultra-micro aeration exhibited superior persistence in water reoxygenation due to the characteristics of extended retention time of ultra-micro bubbles in water and its enhanced adhesion to the bottom sediment surface. Furthermore, the ultra-micro aeration significantly decreased the abundance of anaerobic microorganisms in the sediment while increasing the abundance of aerobic microorganisms such as Desulfobacterota and Acidobacteriota. This shift effectively mitigated and inhibited the release of endogenous pollutants within the river.
更新日期/Last Update: 2025-03-01