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浅水湖泊水体中不同颗粒悬浮物静沉降规律研究

向军, 逄勇, 李一平, 魏海, 王鹏, 刘兴平

向军, 逄勇, 李一平, 魏海, 王鹏, 刘兴平. 浅水湖泊水体中不同颗粒悬浮物静沉降规律研究[J]. 水科学进展, 2008, 19(1): 111-115.
引用本文: 向军, 逄勇, 李一平, 魏海, 王鹏, 刘兴平. 浅水湖泊水体中不同颗粒悬浮物静沉降规律研究[J]. 水科学进展, 2008, 19(1): 111-115.
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XIANG Jun, PANG Yong, LI Yi-ping, WEI Hai, WANG Peng, LIU Xing-ping. Hydrostatic settling suspended matter of large shallow lake[J]. Advances in Water Science, 2008, 19(1): 111-115.
Citation: XIANG Jun, PANG Yong, LI Yi-ping, WEI Hai, WANG Peng, LIU Xing-ping. Hydrostatic settling suspended matter of large shallow lake[J]. Advances in Water Science, 2008, 19(1): 111-115.
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浅水湖泊水体中不同颗粒悬浮物静沉降规律研究

  • 1.

    河海大学环境科学与工程学院, 江苏, 南京, 210098;

  • 2.

    柳州市水利局, 广西, 柳州, 545001;

  • 3.

    南京市自来水总公司, 江苏, 南京, 210002

基金项目: 国家自然科学基金资助项目(50579015;40601050);高等学校博士学科点专项科研基金(20070294019)
详细信息
    作者简介:

    向军(1962- ),男,广西柳州人,高级工程师,博士研究生,主要从事水环境规划与管理工作.E-mail:xiangjunslj@163.com

  • 中图分类号: P334.5;TV142.3

Hydrostatic settling suspended matter of large shallow lake

  • 1.

    College of Environment Science and Engineering, Hohai University, Nanjing 210098, China;

  • 2.

    Conservancy Bureau of Liuzhou, Liuzhou 545001, China;

  • 3.

    Nanjing Tap Water General Company, Nanjing 210098, China

Funds: The study is financially supported by the National Natural Science Foundation of China (No.50579015 and No.40601050)

摘要

    摘要
  • 摘要: 为了解浅水湖泊水体中颗粒悬浮物的静沉降规律,以太湖为例,采用重复深度吸管法计算了2005年4月、5月间在太湖进行的4次静沉降模拟实验中的沉降速度。结果表明:①在悬浮物沉降过程内,3种颗粒物的沉速关系为颗粒无机物(PIM)>悬浮物(SS)>颗粒有机物(POM)。在相同的沉降时间内,PIM的沉速为SS沉速的1.6~2.0倍,POM的沉速为SS沉速的0.3~0.7倍,PIM的沉速为POM沉速的2.5~5.5倍;②水体中悬浮物浓度与沉降时间均呈现出明显的指数衰减规律,悬浮物中无机物含量较高时这种规律更为明显;③悬浮物浓度较低时,太湖悬浮物的沉降速率与水体中的悬浮物浓度无明显的相关关系;而悬浮物浓度较高时,沉降速率随悬浮物浓度升高而增大。
    Abstract: In order to study the hydrostatic settling of suspended matter of large shallow lake,Four experiments,based on the Taihu lake,were conducted in the laboratory for hydrostatic settling behavior of suspended matter in Taihu lake in April and May,2005.The settling velocity of suspended matter was calculated by McLaughlin method.The results show that the settling velocity of particular inorganic matter(PIM) is the biggest,and the second biggest one is that of suspended matter (SS),the smallest one is that of particular organic matter(POM).During the same time of settling,the settling velocity of PIM is 1.6-2.0 times bigger than that of SS,the settling velocity of POM is 0.3-0.7 times bigger than that of SS,and the settling velocity of PIM is 2.5-5.5 times bigger than that of POM.The results also show that the suspended matter concentration decays exponentially with time,which is more obvious when the percentage of inorganic suspended matter accounting for total suspended matter is higher.When the suspended matter concentration is low,no clear relationship is found between settling velocity and suspended matter concentration.But settling velocity obviously rise with the increase of suspended matter concentration while the latter is high.
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    • 参考文献(16)
  • [1] Qin Boqiang.Dynamics of sediment resuspension and the conceptual schema of nutrient release in the large shallow lake Taihu,China[J].Chinese Science Bulletin,2004,49(1):54-64.
    [2] 张运林,秦伯强,陈伟民,等.太湖水体中悬浮物研究[J].长江流域资源与环境,2004,13(3):266-271.
    [3] Simon M,Grossart HP,Schweitzer B,et al.Microbial ecology of organic aggregates in aquatic ecosystems[J].Aquat Microb Ecol,2002,28:175-211.
    [4] Turner JT.Zooplankton fecal pellets,marine snow and sinking phytoplankton blooms[J].Aquat Microb Ecol,2002,27:57-102.
    [5] Wang F,Chen J,Forslin W.Modelling sorption of trace metals on natural sediments by surface complexation model[J].Environmental Science and Technology,1997,31:448-453.
    [6] Jannasch HW,Honeyman BD,Murray JW.Marine scavenging:the relative importance of mass transfer and reaction rates[J].Limnology and oceanography,1996,41:82-88.
    [7] Richard W,Douglas,Brian Rippey,et al.Estimation of the in-situ settling velocity of particles in lakes using a time series sediment trap[J].Freshwater biology,2003,48:512-516.
    [8] 雷坤,杨作升,郭志刚.东海陆架北部泥质区悬浮体的絮凝沉积作用[J].海洋与湖沼,2001,32(3):288-295.
    [9] Riley GA,Stommel H,Bumpus DF.Quantitative ecology of the plankton of the western North Atlantic[J].Bull Bingham Oceanogr Collec,1949,12:1-169.
    [10] NM Burns,Rosa F.In situ measurement of the settling velocity of organic carbon particles and 10 species of phytoplankton[J].Limnol Oceanogr,1980,25(5):855-864.
    [11] Isabelle Larocque,Mazumder A,Proulx M,et al.Sedimentation of algae:relationships with biomass and size distribution[J].Can J Fish Aquat Sci,1996,53:1 133-1 142.
    [12] Marc Schallenberg,Carolyn W Burns.Effects of sediment resuspension on phytoplankton production:teasing apart the influences of light,nutrients and algal entrainment[J].Freshwater Biology,2004,49:143-159.
    [13] Becquevort A,Smith Jr WO.Aggregation,sedimentation and biodegradability of phytoplankton-derived material during spring in the Ross Sea,Antarctica[J].Deep-sea Research Ⅱ,2001,48:4155-4178.
    [14] McLaughlin,RT Jr.Settling properties of suspension[J].Trans Am Soc Civ Eng,1961,126:1 734-1 767.
    [15] 黄建维.粘性泥沙在静水中沉降特性研究[J].泥沙研究,1981(2):31-49.
    [16] 中国科学院南京土壤研究所.土壤理化分析[M].上海:上海科学技术出版社,1978.474-490.
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出版历程
  • 收稿日期:  2007-03-05
  • 刊出日期:  2008-01-24

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