Ludman machines contribute significantly to promote the recycling of wastes for a cleaner environment and a more frugal use of natural resources. Some industry areas where we are contributing are listed below.
Electric Power Generation:
Ludman compactors and granulators work to recycle the wastes from the flue gas desulfurization systems (scrubbers) that control sulfur dioxide air pollution from coal-fired power plants. In this process, materials are used to react with sulfur compounds in the flue gas to prevent the sulfur from going into the atmosphere. Two processes are outlined below.
o Ammonia Based System: Ammonia reacts with the sulfur compounds in the flue gas to produce ammonium sulfate as a byproduct. The Ludman machines work to process this byproduct into a granular form of fertilizer to return back to the earth.
o Lime/Limestone Based System: Lime reacts with the sulfur compounds to produce Calcium Sulfate Dihydrate (Gypsum) as a byproduct. The compaction and granulation of gypsum has uses for agriculture, cement, and Wallboard products.
Sewage Sludge Recycling:
Sludge is solid material that is not broken down by the wastewater treatment process. It must be disposed of in landfills or incinerated unless it can be conditioned for reuse to remove hazardous contaminants. Ludman machines play a role in the process of converting sludge into a 'biosolid' that is eco-friendly.
After conditioning, the material is dried then compacted and granulated into a usable product. Instead of taking up space in a landfill or destroyed, it becomes an organic fertilizer rich in nitrogen and phosphorus.
Salt Removal from Waste Water:
As wastewater is treated to remove dissolved salts through crystallization and drying technologies, Ludman is there to reuse the minerals. We have added complete systems to plants to compact salt fines and granulate into valuable products such as road salt.
Mine Waste Removal:
Ludman is able to aid in the prevention of acid mine drainage from reactive mine tailings. Agglomeration techniques including binders in the use of our compactors are able to immobilize the reactive components in the mine tailings. The process forms strong pellets that are able to resist weathering and leaching into the environment.