scholarly journals Empirical engineering models for airborne respirable dust capture from water sprays and wet scrubbers

2018 ◽  
Vol 70 (10) ◽  
pp. 50-57 ◽  
Author(s):  
J.A. Organiscak ◽  
S.S. Klima ◽  
D.E. Pollock
Keyword(s):  
Respirable Dust ◽  
Water Sprays ◽  
Engineering Models ◽  
Wet Scrubbers

scholarly journals Experimental study of the dust-removal performance of a wet scrubber

2021 ◽  
Author(s):  
Shengyong Hu ◽  
Yang Gao ◽  
Guorui Feng ◽  
Fei Hu ◽  
Changhe Liu ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
Water Intake ◽  
Dust Concentration ◽  
Dust Removal ◽  
Respirable Dust ◽  
Average Pressure ◽  
Total Dust ◽  
Air Volume ◽  
Wet Scrubbers ◽  
Wet Scrubber

AbstractA variety of dust control methods are often applied in coal mines, among which the application of wet scrubbers has proven to be an efficient technology for the removal of dust in airstreams, rather than diluting or confining the dust. In this paper, a wet scrubber design was developed. Based on a self-designed experimental test platform, the total dust concentration, respirable dust concentration, air volume, and average pressure drops of wet scrubbers with 12, 16, 20, and 24 blades were measured under different water intake conditions. The results show that the different water intake levels have only minimal effects on the air volume of the wet scrubbers. However, increased water intake had improved the dust removal efficiency of the wet scrubbers with the same number of blades. The wet scrubber with 16 blades was found to have the best dust removal efficiency at a water intake level of 1.35 m3/h. Its total dust and respirable dust removal efficiency reached 96.81% and 95.59%, respectively. The air volume was 200.4 m3/min, and the average pressure drop was determined to be 169.4 Pa. In addition, when the wet scrubber with 16 blades was applied in a coal preparation plant in China’s Shanxi Province, it was observed that the total dust concentration had fallen below 8.1 mg/m3, and the respirable dust concentration had fallen below 5.9 mg/m3. Therefore, the results obtained in this research investigation provide important references for the use of wet scrubbers to improve coal production environmental conditions.

INFLUENCE OF THE EFFECT OF ELECTROHYDRODYNAMIC DISINTEGRATION OF CHARGED DROPS ON FINE DUST COLLECTION IN WET SCRUBBERS

2001 ◽  
Vol 32 ◽  
pp. 947-948
Author(s):  
AN. M. BOLOGA ◽  
AL. M. BOLOGA ◽  
H.-R. PAUR ◽  
H. SEIFERT
Keyword(s):  
Fine Dust ◽  
Dust Collection ◽  
Wet Scrubbers

scholarly journals Integrated Mechanistic Engineering Models and Macroeconomic Input-Output approach to Model Physical Economy for Evaluating the Impact of transition to Circular Economy

2021 ◽  
Author(s):  
Venkata Sai Gargeya Vunnava ◽  
Shweta Singh
Keyword(s):  
Circular Economy ◽  
Emerging Technologies ◽  
Low Carbon ◽  
Input Output ◽  
Zero Waste ◽  
Engineering Models ◽  
The Impact ◽  
Sustainable Transition

Sustainable transition to low carbon and zero waste economy requires a macroscopic evaluation of opportunities and impact of adopting emerging technologies in a region. However, a full assessment of current...

Helmet-CAM: Strategically Minimizing Exposures to Respirable Dust Through Video Exposure Monitoring

2020 ◽  
Vol 37 (2) ◽  
pp. 727-732
Author(s):  
J.R. Patts ◽  
A.B. Cecala ◽  
E.J. Haas
Keyword(s):  
Respirable Dust ◽  
Exposure Monitoring

Office Environment Syndrome Study: Part II

1998 ◽  
Vol 42 (8) ◽  
pp. 639-642
Author(s):  
Alan Hedge ◽  
William A. Erickson
Keyword(s):  
Case Reports ◽  
Case Control ◽  
Self Report ◽  
Respirable Dust ◽  
Diary Study ◽  
Climate Conditions ◽  
Office Environment ◽  
Work Posture ◽  
Computer Mouse ◽  
Settled Dust

A longitudinal self-report diary study of SBS cases and controls identified from buildingwide surveys of 4 office buildings is described. Self-report diaries were distributed to a total of 214 workers in the 4 buildings, and complete returns were obtained for 123 workers (57% return rate). Climate conditions (CO, CO2, formaldehyde, respirable dust mass (PM3.5) and particulate counts (0.3 μm, 0.5 μm, 1 μm, 5 μm), settled dust, air temperature, %RH, illuminance) were measured at each workstation. Ergonomic factors (observed work posture, office type, desk paper coverage, desk clutter, computer, mouse, keyboard tray, age of chair, chair arms, and plants, were measured at each workstation. Results showed no differences in prevailing climate conditions measured at case/control workstations. However, case reports of symptoms and environment conditions generally were worse than those for controls, and these reports showed periodicity, peaking late each day. The differences between reports by cases and controls generally remained consistent throughout the duration of the study.

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