FRACTIONATION AND CONCENTRATION OF SUSPENDED PARTICULATE MATTER IN NATURAL-WATERS

被引：32

作者：

DOUGLAS, GB

BECKETT, R

HART, BT

机构：

[1] Water Studies Centre, Monash University, Melbourne, Victoria, 3145, Caulfield East

来源：

HYDROLOGICAL PROCESSES | 1993年 / 7卷 / 02期

关键词：

SUSPENDED SEDIMENT; SUSPENDED PARTICULATE MATTER; CONTINUOUS FLOW CENTRIFUGATION; TANGENTIAL FLOW FILTRATION; COLLOIDAL FRACTION;

D O I：

10.1002/hyp.3360070208

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

A scheme for the fractionation and concentration of suspended particulate matter (SPM) from natural waters has been tested. This scheme involves the sequential use of three fractionation techniques sieving, continuous flow centrifugation and tangential flow filtration to collect gram amounts of SPM over the entire particulate and colloidal size range. The separation scheme is able to process large samples (ca. 100 l), within reasonable times (ca. 1 day) and the apparatus is portable. Reproducibility and potential artifacts introducing during the fractionation and concentration of SPM, particularly when tangential flow filtration is used, are discussed. It has been shown that there is a systematic increase in the content of organic carbon, Mg, Ca, Na, K, Cu and Zn with decreasing particle size, highlighting the importance of the colloidal < 1 mum) fraction.

引用

页码：177 / 191

页数：15

共 63 条

[1]

Akred A.R., Fane A.G., Friend J.P., Negative rejections of cations in the ultrafiltration of gelatin and salt solutions, Ultrafiltration Membranes and Applications, pp. 47-97, (1980)

[2]

Allan R.J., The role of particulate matter in the transport and burial of contaminants in aquatic ecosystems, Water Quality Management: The Role of Particulate Matter in the Transport and Fate of Pollutants, Water Studies Centre, (1986)

[3]

Baeyens W., Gillain G., Decadt G., Elskens I., Trace metals in the eastern part of the North Sea. 1. Analysis and short term distributions, Oceanol. Ada, 10, pp. 169-179, (1987)

[4]

Baturina M.V., Ljutsarev S.V., Romankevich E.A., Fractionating by ultrafiltration the organic matter of marine water, Pol. Arch. Hydrobiol., 24, pp. 99-102, (1977)

[5]

Beckett R., The composition and surface properties of suspended particulate matter, Water Quality Management: The Role of Particulate Matter in the Transport and Fate of Pollutants, (1986)

[6]

Beckett R., The application of field‐flow fractionation techniques to the characterization of complex environmental samples, Environmental Technology Letters, 8, pp. 339-354, (1987)

[7]

Beckett R., Nicholson G.J., Hart B.T., Hansen M.E., Giddings J.C., Separation and size characterization of colloidal particles in river water by sedimentation field‐flow fractionation, Water Res., 22, pp. 1535-1545, (1988)

[8]

Beckett R., Hotchin D.M., Hart B.T., Use of field‐flow fractionation to study pollutant‐colloid interactions, J. Chromatog., 517, pp. 435-447, (1990)

[9]

Blatt W.F., Dravid A., Michaels A.S., Nelsen L., Solute polarization and cake formation in membrane ultrafiltration: causes, consequences and control techniques, Membrane Science and Technology, pp. 47-97, (1970)

[10]

Buckley A., An electron microprobe investigation of the chemistry of ferromanganese coatings on freshwater sediments, Geochim. Cosmochim. Acta, 53, pp. 115-124, (1989)

← 1 2 3 4 5 6 7 →