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水环境中腐殖酸的荷电特性与聚集特性

Keywords: 腐殖酸,荷电特性,聚集特性

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Abstract:

通过腐殖酸的Zeta电位和粒径的变化规律研究,探讨化学条件对腐殖酸的荷电状态和聚集状态的影响。结果表明,腐殖酸具有自我凝聚的特性;在pH较低和溶液离子强度较高时,腐殖酸胶粒的Zeta电位绝对值减小而聚合度增大,从而使腐殖酸胶粒聚集而凝聚;随腐殖酸浓度增大,腐殖酸胶粒的Zeta电位绝对值增大,腐殖酸胶粒的缩聚程度降低而使粒径减小。

References

[1]  Gondar D., López R., Fiol S., et al.Characterization and acid-base properties of fulvic and humic acids isolated from two horizons of an ombrotrophic peat bog.Geoderma, 2005, 126(3-4):367-374
[2]  陈颖, 袁旭音.河口湿地沉积物中腐殖酸含量对外源重金属分布的影响研究.水土保持学报, 2008, 22(4):185-189 Chen Y., Yuan X.Y.Effects of humic acid on partitioning of extrinsic heavy metal for the estuarine wetland sediment.Journal of Soil and Water Conservation, 2008, 22(4):185-189(in Chinese)
[3]  Dong L.H., Yang J.S., Yuan H.L., et al.Chemical characteristics and influences of two fractions of Chinese lignite humic acids on urease.European Journal of Soil Biology, 2008, 44(2):166-171
[4]  Furukawa K., Takahashi Y.Effect of complexation with humic substances on diffusion of metal ions in water.Chemosphere, 2008, 73(8):1272-1278
[5]  Tsiridis V., Petala M., Samaras P., et al.Interactive toxic effects of heavy metals and humic acids on Vibrio fischeri.Ecotoxicology and Environmental Safety, 2006, 63(1):158-167
[6]  Orhan Gezici, Hüseyin Kara, Ahmet Ayar, et al.Sorption behavior of Cu(Ⅱ) ions on insolubilized humic acid under acidic conditions: An application of Scatchard plot analysis in evaluating the pH dependence of specific and nonspecific bindings.Separation and Purification Technology, 2007, 55(1):132-139
[7]  Burcu ?zkaraova Güng?r E., Bekb?let M.Zinc release by humic and fulvic acid as influenced by pH, complexation and DOC sorption.Geoderma, 2010, 159(1-2): 131-138
[8]  Senesi N., Saiz-Jiminez C., Miano T.M.Spectroscopic characterization of metal-humic acid-like complexes of earthworm-composted organic wastes.Science of the Total Environment, 1992, (117-118):111-120
[9]  Wagoner D.B., Christman.R.F.Molar mass and size of Norwegian aquatic NOM by light scattering.Environment International, 1999, 25(2-3):275-284
[10]  Andersen D.O., Alberts J.J., Takács M.Nature of natural organic matter(NOM) in acidified and limed surface waters.Water Research, 2000, 34(1):266-278
[11]  Jones M.N., Bryan N.D.Colloidal properties of humic substances.Advances in Colloid and Interface Science, 1998, 78(1):1-48
[12]  Ghabbour F. A., Davies G.Humic Substance: Molecular Details and Applications in Land and Water Conservation.New York:Taylor & Francis, 2005
[13]  Baker A., Curry M.Fluorescence of leachates from three contrasting landfills.Water Research, 2004, 38(10):2605-2613
[14]  梅毅, 吴丰昌, 王立英, 等.运用3DEEMs及荧光偏振方法研究pH、离子强度及浓度效应对腐殖酸荧光光谱特性的影响.地球化学, 2008, 37(2):165-173 Mei Y., Wu F.C., Wang L.Y., et al.Application of three-dimensional excitation-emission matrix fluorescence spectroscopy and fluorescence polarization to studying characterization of natural organic substances.Geochimica, 2008, 37(2):165-173(in Chinese)
[15]  杨毅, 王晓昌, 金鹏康.水环境中溶解态腐殖酸与Pb2+络合的荧光特性研究.水处理技术, 2009, 35(4):39-42 Yang Y., Wang X.C., Jin P.K.Study on fluorescence characterist of dissolved humic acid and complexion of it and lead ion.Technology of Water Treatment, 2009, 35(4):39-42(in Chinese)
[16]  Liu J., Wang J., Chen Y.H., et al.Comparative characterization of two natural humic acids in the Pearl River Basin, China and their environmental implications.Journal of Environmental Sciences, 2010, 22(11):1695-1702

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