scholarly journals The influence of soil particle size distribution and clay minerals on ammonium nitrogen in weathered crust elution-deposited rare earth tailing

2021 ◽  
Vol 208 ◽  
pp. 111663
Author(s):  
Xin Fan ◽  
Qiang Xue ◽  
Siwen Liu ◽  
Jie Tang ◽  
Jiyang Qiao ◽  
...  
Keyword(s):  
Particle Size ◽  
Rare Earth ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Clay Minerals ◽  
Ammonium Nitrogen ◽  
Soil Particle ◽  
Soil Particle Size ◽  
Soil Particle Size Distribution ◽  
Weathered Crust

Measurement of soil particle-size distribution by the PARIO measurement system: lessons learned and comparison with two other measurement techniques

2020 ◽  
Author(s):  
Attila Nemes ◽  
Anna Angyal ◽  
Andras Mako ◽  
Jan Erik Jacobsen ◽  
Eszter Herczeg
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Measurement Techniques ◽  
Temperature Shift ◽  
Quantitative Information ◽  
Lessons Learned ◽  
Soil Particle ◽  
Soil Particle Size ◽  
Soil Particle Size Distribution

<p>The PARIO system is a novel technique for the measurement of soil particle-size distribution. It is a computerized sedimentation-based system that will yield a quasi-continuous particle-size distribution curve. Given that it is semi-automated, continuous and sedimentation-based, this system promises to become a good and compatible alternative to the traditional pipette or hydrometer techniques. Through hundreds of measurements we have acquired practical operational knowledge that this poster will share with potential future users. We will also present quantitative information on the technique’s sensitivity to e.g. temperature shift or intermittent vibration during measurement. We also used a set of 45 soil samples of various texture from Norway to compare particle-size distribution measured by the PARIO system, the traditional pipette technique and laser diffractometry. We discuss measurement results as well as related sample-preparation aspects.</p>

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