Fugitive dust emissions from unpaved mine and quarry haul roads poise a huge problem for surface mining operations. Ironically, water has long been viewed as cost effective for dust control. However in reality, controlling fugitive dust using water is Very Expensive especially due to today’s high fuel costs, increased operating and equipment costs.

 

 

 

Earthbind™ 100 will bind the silty dust particles together preventing them from becoming airborne. Subsequent applications will cause product build up and after a period of time, due to the accumulative residual of product, the application can be suspended or reduced until blow on, tracked on, or traffic generated dust warrants another quick application.

 

 

 

 

 

 

Earthbind™ 100 on Mine and Haul roads

To treat an active mine haul road for fugitive dust will consist of initially applying a base course of Earthbind 100, which will bind up fines that are presently on the surface of the haul road. This will be done by applying Earthbind to build a base equivalent to 0.10-gallons of concentrate per square yard of road. This task will be performed using a 15:1 (15 parts water to 1 part product) solution and will be complete over approximately a 7-day period. After the base course is established, Earthbind would be further diluted with water and applied at a rate that would result in the application of 0.002-gallons of Earthbind concentrate per square yard of haul road every day when in use or until winter or the rainy season. This maintenance application is necessary to control dust generated by track-on, blow-on, or spill-on dust (material dropping from haul trucks).

 

Following is Envi Roads recommended procedure for treating a heavily active mine haul road using Earthbind 100. The procedure is performed in two phases, the Base Coarse and Maintenance application phase:


Recommended Equipment/Personnel:

 

  • Heavy duty pump, flow meter, and hoses
  • On-site large capacity storage tank;
  • Equipment and personnel to transfer product from railcar/tanker truck to on-site storage tank;
  • Large water truck;
  • Rail-site access;
  • Electrician(s) to install power to tank circulation pump;
  • Personnel and equipment to place tank on-site and retrofit tank (i.e., help install hoses, etc.) for product application.


Base Coarse Procedure:

 

Recommend 0.1-gallons/Earthbind/sq. yard
1 mile haul road, 80’ wide = 46,933 square yards
46,933 X 0.1 = 4693 gallons concentrate/mile

 

Make sure haul road is free of any excessive potholing, wash boarding, and/or loose gravel. Do not scarify road to enhance product infiltration. Our procedure uses the compacted road in a beneficial way.

 

In a water truck, make a 15:1 Earthbind 100 concentrate to water solution. Apply this concentration on the road at approximately 0.05-gallons per square yard per pass. Shoot two passes to achieve a residual of approximately 0.00625-gallons of concentrate per square yard, after second pass.
Repeat this procedure twice a day, one in the morning and one in the afternoon, over a 7 to 8-day period, to build a base coarse equaling approximately 0.10-gallons of concentrate per square yard.

 

Maintenance Procedure:


Recommend 0.002-gallons/Earthbind/sq. yard/day
1 mile haul road, 80’ wide = 46,933 square yards
46,933 X 0.002 = 100 gallons concentrate/mile/day

 

  1. In a water truck, make a 50:1 Earthbind 100 concentrate to water solution. Apply this concentration on the road at approximately 0.05-gallons per square yard per pass. Shoot two passes to achieve a residual of approximately 0.0021-gallons of concentrate per square yard, after second pass.

 

Continue maintenance procedure every day when haul road is in use or until winter.