Particle size distribution mathematical models and properties of suspended solids in a typical freshwater pond

2018 ◽  
Vol 241 ◽  
pp. 164-171 ◽  
Author(s):  
Weijun Bao ◽  
Songming Zhu ◽  
Shuirong Guo ◽  
Li Wang ◽  
Shixue Huang ◽  
...  
2002 ◽  
Vol 46 (11-12) ◽  
pp. 413-418 ◽  
Author(s):  
H. Furumai ◽  
H. Balmer ◽  
M. Boller

Continuous runoff quality monitoring was conducted for one month at urban highway drainage with an area of 8.4 ha. Dynamic change of suspended solids and heavy metal concentrations were investigated during first flush periods, taking the particle size distribution into consideration. Except for Pb, the concentrations of TSS and heavy metals in runoff were within the range of the EMC reported in recent highway runoff research. Particle-bound heavy metals (Zn, Pb, and Cu) accounted for more significant pollutant loads than soluble fractions. Their content decreased with increasing total SS concentration in runoff samples. The results of particle size distribution (PSD) analysis of runoff samples indicate that high TSS concentration samples contained coarser particles. Based on the PSD results, a stepwise wash-off phenomenon of TSS under varying runoff rate conditions was explained by the different washoff behavior of fine (< 20 mm) and coarser particles.


2016 ◽  
Vol 2 (4) ◽  
pp. 1-11 ◽  
Author(s):  
Leila Esmaeelnejad ◽  
Fatemeh Siavashi ◽  
Javad Seyedmohammadi ◽  
Mahmood Shabanpour

Author(s):  
K. A. Alvanian ◽  
◽  
A. V. Andrianov ◽  
Yu. N. Selezneva ◽  
◽  
...  

High pressures in the soil mass form the specific properties of the soil, in particular the effect on the particle size distribution. The purpose of the work is to assess the change in the granulometric composition of bentonite clay under the pressure. Experimental data on the pressure (P = 0-800 MPa) influence on the change in particle size distribution in clay samples from the deposit are presented. As a result of the experiment, two classes were identified in which the change in the content of fractions is different. These changes are due to the aggregation and dispersion of particles. Mathematical models have been calculated that make it possible to predict the content of fractions depending on the clay activation pressure


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