Effect of aeration disturbance on humus in sediment of black and odorous water body
WANG Li
LI Tingting
JIANG Huiyuan
LIU Mengshuo
Abstract：Taking rural black and odorous water body as the research object,the effects of different aer-ation 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(FT-IR),and the spectral characteristics of humus were discussed under different aeration methods.The re-sults 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 in-crease of biomass in the system and the accumulation of humus after aeration.After the aeration treat-ment,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 intensi-ty 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 ab-sorption peaks increased,which were higher than those of water aeration group.
Keywords：aerationrural black and odorous water bodyhumus component of sedimentspectral characteristics
Publication Date：2024-02-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 151-158 )