The best uses of bentonite are the ones which involve mixture with water. By adjusting the water content together with a specified amount of clay, attributes of this mix could be developed that are utilized by businesses for bonding and plasticizing. Because of the distinctive attributes that sodium bentonite displays, there are quite a few uses for sodium bentonite. Due to these colloidal properties, it’s frequently utilized in drilling mud in the gas and oil business and in the environmental industry. This property of swelling additionally makes sodium bentonite helpful as a sealant. A frequent use for sodium bentonite would be to seal ponds and small bodies of water. As an ecological sealant, it’s frequently used as a lining in landfills, to secure subsurface disposal methods for spent nuclear fuel, and to quarantine metal pollutants of groundwater. Additionally, it is utilized in the building sector to watertight below-grade foundations and walls and form impermeable barriers.
Other industrial applications for sodium bentonite comprise of cement, adhesives, ceramics, and kitty litter. It’s used as a binding agent for taconite pellets in the metal industry. In the pyrotechnics industry, sodium bentonite clay can be utilized to make rocket nozzles.
Some common uses include:
- Wastewater Treatment
- Gas and Oil Drilling
- Flat Drilling
- Civil Engineering
- Construction Engineering
- Industrial Coatings
- Paper Recycling
- Pet Products
- Iron Ore Pelletizing
- Animal Feeds
- Asphalt Emulsifiers
- Household Cleaners
Sodium Bentonite as a Pond Sealant
Bodies of water, including a pond, little river or lagoon, which shows signs of leaking, you want a high quality pond seal to spot this up. Made entirely out of bentonite clay, and totally safe for the environment, sodium bentonite pond seal is a powerful and inexpensive solution to a number of the kinds of water seepage issues that might occur with lakes and ponds.
Sodium Bentonite for Grouting
Granular bentonite is a pure substance which has no chemical additives. It’s often utilized in drilling software and also to seal wells because its special properties let it create barriers between water and soil. Granular bentonite is an economical approach to achieve bentonite grouting, since this material creates a semi solid, gel-like mass, that fills voids and limits water motion.
Popular Uses Include:
- Civil engineers have utilized sodium bentonite in numerous water and fluid retention applications. Dry bentonite is mixed into a porous soil. When hydrated, it swells and forms a low permeability barrier for ponds, reservoirs, sanitary and industrial landfills, dams, lagoons and slurry trench cut-off walls.
- The well-drilling industry (for oil, water and groundwater monitoring) has utilized bentonite as a drilling fluid additive since the 1920s. Bentonite provides lubricity, viscosity, density, gel strength and filtrate control. Since the early 1980s drilling-related uses of sodium bentonite has included the sealing of shallow exploration boreholes to prevent contamination of groundwater aquifers by surface or intraformational leakage. This chapter will discuss specific types of seals formed with sodium bentonite.
- The foundry industry utilizes bentonite as bonding agent for sands used in producing foundry cores and molds. The bentonite bonds with the sand and water to form a plastic, cohesive material that can be compressed around a pattern to prepare a mold. The bentonite ideally bonds with the sand with sufficient strength to maintain the cavity before, during and after the pouring of molten metal. It forms and maintains an efficient high-strength bond at temperatures of as much as 3,000°F (1700°C).