曝气扰动对黑臭水体底泥腐殖质的影响  

Effect of aeration disturbance on humus in sediment of black and odorous water body

作　　者：王莉[1] 李亭亭 姜惠源 刘萌硕 WANG Li;LI Tingting;JIANG Huiyuan;LIU Mengshuo(School of Ecology and Environent,Zhengzhou university,Zhengzhou 450001,China;Henan Provincial Landscape Geological Tourism Resources Development Co.,Ltd,Zhengzhou 450001,China)

机构地区：[1]郑州大学生态与环境学院,河南郑州450001 [2]河南省山水地质旅游资源开发有限公司,河南郑州450001

出　　处：《海洋湖沼通报》2024年第1期151-158,共8页Transactions of Oceanology and Limnology

基　　金：国家自然科学基金联合项目(U1704125);国家水体污染控制与治理科技重大专项(2015ZX07204-002-05);河南省高等院校重点科研项目(19B610004)。

摘　　要：以农村黑臭水体为研究对象,结合三维荧光光谱(EEMs)、紫外-可见吸收光谱(UV-vis)与傅里叶红外光谱(FTIR)技术,研究不同曝气处理方式对底泥腐殖质组分含量的影响,并探讨不同曝气方式下腐殖质的光谱特征变化。结果显示,与对照组相比曝气处理后富里酸含量下降,胡敏酸和胡敏素含量上升,腐殖质总量相比对照组升高0.99~2.34 g/kg,表层底泥表观黑臭程度明显下降。PQ值(腐殖化指数)相比对照组升高4.08%~7.82%,反映出曝气处理后湖泊生产力升高,系统内生物量增大,腐殖质累积。曝气处理后荧光特征峰和紫外吸收峰强度均降低,红外光谱吸收峰强度升高,泥曝气处理后6个红外吸收峰强度均升高,且均高于水曝气组。Taking rural black and odorous water body as the research object,the effects of different aeration treatment methods on the content of humus components in sediments were studied by combining three-dimensional fluorescence spectroscopy(EEMs),uV-VIS and Fourier infrared spectroscopy(FTIR),and the spectral characteristics of humus were discussed under different aeration methods.The results showed that compared with the control group,the content of fulic acid decreased,the content of humic acid and humacin increased,the total humus content increased by 0.99~2.34 g/kg,and the PQ value(humus index) increased by 4.08%~7.82%,reflecting the increase of lake productivity,the increase of biomass in the system and the accumulation of humus after aeration.After the aeration treatment,the fluorescence characteristic peak and the ultraviolet absorption peak intensity were reduced,and the infrared spectral absorption peak intensity was increased.After aeration treatment,the intensity of fluorescence characteristic peak and ultraviolet absorption peak decreased,while the intensity of infrared absorption peak increased.After sludge aeration treatment,the intensity of six infrared absorption peaks increased,which were higher than those of water aeration group.

关 键 词：曝气 农村黑臭水体 底泥腐殖质组分 光谱特性 

分 类 号：X131.3[环境科学与工程—环境科学]