Limestone and clay addition control the drilling fluids density and/or viscosity.
Lime, limestone and dolomite reacts with acid components of drilling fluids.
Finest limestone and clay powder stabilize the sedimation of drilling suspensions.
Addition of hydrated lime adjust the pH value and create higher recycling rates e.g. of fracking water.
On the first-generation techology of biofuels lime addition valorize by-products.
Hydrated lime increase the biogas yield in fermentation processes.