Sediment Analysis and Classification

A TRANSECT ACROSS AND SEDIMENT ANALYSIS OF A FORMER FLUVIAL ENVIRONMENT

10.1130/abs/2016ne-272778 ◽

2016 ◽

Author(s):

Daniel P. Childers ◽

◽

Abigail Conaway ◽

Jeffery Manner ◽

Kristina Snyder ◽

...

Keyword(s):

Sediment Analysis

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SEDIMENT ANALYSIS OF AN ARTIFICIAL BERM NEAR FT. MYERS BEACH, FLORIDA

10.1130/abs/2017am-303772 ◽

2017 ◽

Author(s):

Sara A. Ramos ◽

◽

Gary A. Zarillo ◽

Kerri Allen

Keyword(s):

Sediment Analysis

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Changes in Particle Size, Sedimentation, and Protein Microstructure of Ultra-High-Temperature Skim Milk Considering Plasmin Concentration and Storage Temperature

Molecules ◽

10.3390/molecules26082339 ◽

2021 ◽

Vol 26 (8) ◽

pp. 2339

Author(s):

So-Yul Yun ◽

Jee-Young Imm

Keyword(s):

Particle Size ◽

High Temperature ◽

Storage Temperature ◽

Whey Proteins ◽

Skim Milk ◽

Storage Period ◽

Sediment Analysis ◽

Sediment Formation ◽

And Storage ◽

Ultra High Temperature

Age gelation is a major quality defect in ultra-high-temperature (UHT) pasteurized milk during extended storage. Changes in plasmin (PL)-induced sedimentation were investigated during storage (23 °C and 37 °C, four weeks) of UHT skim milk treated with PL (2.5, 10, and 15 U/L). The increase in particle size and broadening of the particle size distribution of samples during storage were dependent on the PL concentration, storage period, and storage temperature. Sediment analysis indicated that elevated storage temperature accelerated protein sedimentation. The initial PL concentration was positively correlated with the amount of protein sediment in samples stored at 23 °C for four weeks (r = 0.615; p < 0.01), whereas this correlation was negative in samples stored at 37 °C for the same time (r = −0.358; p < 0.01) due to extensive proteolysis. SDS-PAGE revealed that whey proteins remained soluble over storage at 23 °C for four weeks, but they mostly disappeared from the soluble phase of PL-added samples after two weeks’ storage at 37 °C. Transmission electron micrographs of PL-containing UHT skim milk during storage at different temperatures supported the trend of sediment analysis well. Based on the Fourier transform infrared spectra of UHT skim milk stored at 23 °C for three weeks, PL-induced particle size enlargement was due to protein aggregation and the formation of intermolecular β-sheet structures, which contributed to casein destabilization, leading to sediment formation.

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Near-infrared spectroscopy as a potential method for routine sediment analysis to improve rapidity and efficiency

Water Science & Technology ◽

10.2166/wst.1998.0751 ◽

1998 ◽

Vol 37 (6-7) ◽

pp. 181-188 ◽

Cited By ~ 9

Author(s):

Diane F. Malley

Keyword(s):

Near Infrared ◽

Organic Matter Content ◽

Aggregate Size ◽

Clay Content ◽

Analytical Techniques ◽

Matter Content ◽

Near Infrared Reflectance ◽

Organic C ◽

Analytical Technique ◽

Sediment Analysis

The potential for improvement in the rapidity, cost-effectiveness, and efficiency of sediment analysis by the application of near-infrared reflectance spectroscopy (NIRS) is recognized. The rapid (<2 min), non-chemical, non-destructive analytical technique of near-infrared (700–2500 nm) spectroscopy combines applied spectroscopy and complex statistics. It has been used for the experimental analysis of various constituents and functions of soils since the 1960s, and applications for the analysis of sediments are currently being explored. For application of NIRS, sediment samples require little preparation, other than drying, and the samples are not subject to the manipulations of conventional analytical techniques. The spectral information recorded in a 2 min scan can be used to predict numerous constituents and parameters on the samples once appropriate calibration equations have been prepared from sets of samples analyzed by both NIRS and conventional analytical techniques. Constituents and properties of soil and/or sediment analyzed by NIRS technology include moisture, organic matter content, organic C, CO3=, N, P, S, K, Ca, Mg, clay content, humic acids, lignin, cellulose, metal oxides, heavy metals, aggregate size, and inferred past pH of lakes. Several areas are identified where further research is needed to prepare for the application of NIRS to the routine analysis of sediments.

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Suspended Sediment Analysis: Case Study of Berounka Sources

Geografie ◽

10.37040/geografie1997102020130 ◽

1997 ◽

Vol 102 (2) ◽

pp. 130-138

Author(s):

Zdeněk Kliment ◽

Jan Kopp

Keyword(s):

Seasonal Variation ◽

Sediment Transport ◽

Suspended Sediment ◽

Inorganic Material ◽

Suspended Sediments ◽

Suspended Load ◽

Suspended Sediment Transport ◽

Sediment Analysis ◽

Load Characteristics

The article examines suspended sediment transport in Mže, Radbuza, and Úhlava Rivers over the period 1989-95. Data on suspended sediments was collected at five observing sites. The research has been carried out in collaboration with Czech Hydrometeorological Institute, Plzeň. Apart from the suspended load characteristics also the seasonal variation of suspended sediments, siltation of Hracholusky and České Údolí Lakes, and the share of inorganic material in suspended sediments have been examined.

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