Some Seventy Years in the Shrouding of Mining Residue Deposits for Environmental Protection

1983 ◽  
Vol 15 (2) ◽  
pp. 85-102
Author(s):  
F D Cartwright
Keyword(s):  
Environmental Protection ◽  
Impervious Surfaces ◽  
Dust Suppression ◽  
Mine Dumps ◽  
Fresh State

Isolation of mine dumps and slimes dams to prevent damage to the environment. There are considered the need for isolation, the use of vegetation essentially for dust suppression and material bonding to create impervious surfaces in order to lead off precipitation in a fresh state and suppress dust at the same time.

scholarly journals Comparison Analysis of Dust-Depressor Using Microbial Induced Carbonate Precipitation with Urease Reagent

2017 ◽  
Vol 2 (4) ◽  
pp. 379
Author(s):  
Jun Xiao ◽  
Juan Huang ◽  
Yao-dong Jiang ◽  
Cao Chong ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Environmental Protection ◽  
High Efficiency ◽  
Pure Water ◽  
Carbonate Precipitation ◽  
Comparison Analysis ◽  
Seepage Velocity ◽  
Dust Suppression ◽  
Super Absorbent Polymer ◽  
Suppression Efficiency ◽  
Absorbent Polymer

<p><em>The dust-depressors have been developed utilizing a method of microbial induced carbonate precipitation. This microbial dust-depressor has the characteristics of high efficiency for dust suppression and environmental protection. Optimal compositions of urease dust-depressor and microbial dust-depressor have been studied. In addition, pure water, CaCl2 and super absorbent polymer are chosen to compare with new dust-depressors on the performances. The results showed that the microbial dust-depressor had 3.13 mm/min of seepage velocity and 79.1% of dust suppression efficiency, which were superior to other dust-depressors on the performance of seepage velocity and dust suppression efficiency.</em><em></em></p>

Equipment dentifying Vapor Leakages and Recovery of Petroleum Product Vapor When Stored

2020 ◽  
Vol 05 ◽  
pp. 60-64
Author(s):  
Y.N. Rybakov ◽  
◽  
V.E. Danilov ◽  
I.V. Danilov ◽  
◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Environmental Protection ◽  
Petroleum Product ◽  
Petroleum Products ◽  
Oil Products ◽  
Carnot Cycle ◽  
Oil Supply ◽  
Gas Stations ◽  
Environmental Situation ◽  
Vapor Absorption

The problem of losses of oil products from leaks during their storage and transportation at oil supply facilities is considered. The influence of oil product leaks on the environmental situation around oil depots and gas stations is shown. A detailed overview of existing methods and tools for detecting leaks of petroleum products from storage facilities is presented. The evaluation of their effectiveness. Two methods for detecting oil leaks and devices based on them are proposed. The first device monitors the movement of liquid in the tank, the second-detects petroleum products in wastewater. The problem of recovery of petroleum vapors and environmental pollution from the release of vapors of light fractions into the atmosphere is also considered. An overview of existing methods and means of recovery of petroleum vapors is presented. Two methods and devices for capturing oil vapors and returning them to the reservoir are proposed, based on different principles: vapor absorption in the cooled oil product and vapor recovery on the principle of the Carnot cycle. It is shown that these devices can provide effective detection of oil leaks and recovery of their vapors, as well as improve the effectiveness of environmental protection at modern gas stations and tank farms.

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