On the relationship of aerosol optics to moments of particle size distribution

1998 ◽  
Vol 25 (22) ◽  
pp. 4189-4192 ◽  
Author(s):  
Luis A. de P. Vasconcelos ◽  
Edward S. Macias ◽  
Warren H. White
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Relationship Of ◽  
The Relationship

Particle Size Distribution to the Final Effluent Quality - Based on Turbidity

2013 ◽  
Vol 838-841 ◽  
pp. 1651-1654
Author(s):  
Meng Meng Yin ◽  
He Li Wang ◽  
Chao Yang
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Activated Sludge ◽  
Size Distribution ◽  
Activated Sludge Process ◽  
Effluent Quality ◽  
Mixed Liquor ◽  
Relationship Of ◽  
The Relationship ◽  
Final Effluent

This paper studies the particle size distribution (PSD) and final effluent quality in the activated sludge process. The PSD of final effluent and mixed liquor were determined, and it was found that the settlement in the process can remove particles between 100μm and 200μm easily, while difficult to remove the particles between 13.5μm to 65μm, which was in the supracolloidal (1-100μm) range and could cause problem at higher flows. The final effluent quality was measured by turbidity. The relationship of PSD-10 with turbidity, was analysed and the formed links were paired. Therefore, the PSD can be linked with final effluent quality and can be expected to use as an index to evaluate the final effluent quality future.

scholarly journals Particle Size Distribution Based Occurrence Features of Organic Components in Printing and Dyeing Wastewater Under a Treatment Process

2019 ◽  
Vol 118 ◽  
pp. 04009
Author(s):  
Yuan Li ◽  
Jie Liu ◽  
Yibiao Yu ◽  
Hao Zhu ◽  
Zheng Shen ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Reverse Osmosis ◽  
Treatment Process ◽  
Dyeing Wastewater ◽  
Wastewater Treatment Process ◽  
Printing And Dyeing Wastewater ◽  
Sedimentation Tank ◽  
The Relationship

A more detailed occurrence features of organic matters in the printing and dyeing wastewater, based on its particle size distribution (PSD) and along with a wastewater treatment process, was conducted to provide a support for advanced treatment. Results suggested that, (1) In the dyeing wastewater, the occurrence characteristic of COD was: soluble>supra colloidal>colloidal>settleable; However, for protein, the supra colloidal was dominant, followed by the soluble. The feature of the polysaccharide was consistent with COD’s. In the wastewater, 29.66% of COD could be attributed to proteins and 3.45% of the COD could be attributed to polysaccharides. (2) The relationship among the forms of COD in the primary sedimentation tank, aerobic tank, secondary sedimentation tank, and reverse osmosis-treated concentrated effluent was consistent, that was: soluble>colloidal>supra colloidal>settleable. (3) In the primary sedimentation tank, the settleable COD was almost completely removed; In the aerobic tank, the residual super colloidal COD was not much; After MBR-RO treatment, the COD in the reverse osmosis concentrated water was almost dissolved and only a little presented in other forms.

Particle Size Distribution - Mechanical Properties Relationship of Brick Clays

1997 ◽  
Vol 132-136 ◽  
pp. 2164-2167 ◽  
Author(s):  
A. Botis ◽  
V. Karayannis ◽  
Athanasios D. Papargyris ◽  
G. Papapolymerou ◽  
X. Spiliotis ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Relationship Of

scholarly journals Microscopic Removal Function and the Relationship Between Slurry Particle Size Distribution and Workpiece Roughness During Pad Polishing

2013 ◽  
Vol 97 (1) ◽  
pp. 81-91 ◽  
Author(s):  
Tayyab Suratwala ◽  
Michael Feit ◽  
William Steele ◽  
Lana Wong ◽  
Nan Shen ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
The Relationship

scholarly journals Size Characteristics of Sediments Eroded under Different Masson Pine Litter Covers in South China

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2190
Author(s):  
Fangfang Zhu ◽  
Yuchen Li ◽  
Jinhua Cheng
Keyword(s):  
Particle Size ◽  
Soil Erosion ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Fine Particles ◽  
Enrichment Ratio ◽  
Coarse Particles ◽  
Characteristic Parameters ◽  
Sediment Distribution ◽  
The Relationship

The particle size distribution characteristics of runoff sediments are vital for understanding the effect of the mechanism of soil erosion on slopes. The objective of this study was to investigate the particle-size distribution of sediments eroded from slopes covered by different litter coverage masses under artificial rainfall simulation. Litter was spread on the surface of a soil tank according to different biomasses (0 g·m−2, 100 g·m−2, 200 g·m−2 and 400 g·m−2). The mean weight diameter (MWD), fractal dimension (D) and enrichment ratio (ER) are characteristic parameters of sediment particle size. The MWD and D were more sensitive to soil erosion and had a significant negative correlation with the slope angle and rainfall intensity. The performance of the MWD on the slope (5°) was less than the MWD on the slope (10°). The relationship between eroded sediment distribution characteristic parameters and the litter coverage mass had a significant influence on the content of coarse particles. The content of fine particles accelerated, decreased and then stabilized, whereas coarse particles increased first and then stabilized. The litter diameter and surface area were the main parameters that affected the MWD and D. Under different rain intensities and slopes, the ER varied inconsistently with litter coverage mass. Coarse particles were eroded easily and selectively, and soil erosion had no sorting effect on fine particles. These findings support the quantitative study of the relationship between the amount of litter coverage mass and the particle size of soil sediments.

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