Lignin Dust Control
Lignosulfonate is a proven and environmentally safe product derived from lignin in the process of converting wood into pulp. It is nature’s glue for binding cellulose fibers to form the strong, rigid structure of trees. The binding action of lignin is naturally tacky and is an excellent adhesive on solid particles. This is due to the attraction of the lignin molecule to the fine soil particles in road beds and can improve the engineering properties by the wetting and dispersing characteristics of Lignosulfonates. This is particularly true in that the wood sugars and lignin polymer are both bonding agents. However, the wood sugars are also hygroscopic and both attract and retain moisture in the road surface. This builds a flexible, hard, relatively dust free surface. In dust control applications it acts as a glue that bonds the fines and aggregate together. It is a fact that the use of Lignin over time helps develop stronger inferior soils. Many end users have found that road beds improve dramatically. Lignin has been used for over 60 years to control dust and stabilize gravel on unpaved roads. It is water soluble, environmentally friendly, easy to handle and apply, and very cost-effective. Lignin is derived from an abundant and renewable resource.
Benefits of Lignin
Applied to a compacted road bed surface, one application usually last the summer season. A water diluted solution of lignin can result in several economical benefits such as:
Reduced road dust clouds
Improve traction
Reduced road repairs & maintenance cost
Decreasing equipment wear and tear
Increased load-bearing capacity
Firmer road surface, elimination of loose gravel
Control of Dust Mites in the air
Environmentally safe
Stabilize and seal road beds
Reduce cost of needing frequent water truck applications
Environmental Safety
According to the Environmental Protection Agency, road dust control is the largest cause to particulate air pollution in America. The quantity of dust that is produced by unpaved roads is five times greater than two other contributors, which are construction activities and wind erosion. Not only is dust from these roads a nuisance, they have been cited in many cases of respiratory illness for humans that live near areas in need of dust control.
Lignosulfonate is biodegradable, non- toxic, no toxic run off, non-hazardous and water soluble at all concentrations. It may be applied around sensitive areas such as aquifers, lakes, streams, vineyards, berry fields, orchards, recreational facilities and residential areas. In addition, it is non corrosive, having a corrosion rate of tap water. It is a non-corrosive and non-hazardous product that is easily washed out of equipment and clothing by using regular water.