Lime is used in the recovery of metals. It also has an important role in controlling the pH in the waste water from this industry.
Recently, special attention has been given to the deterioration of the environment. Acid rain and toxic and dangerous industrial waste have contributed to worsen this situation. Lime helps solve these problems. Its alkaline content, its low costs and ease to work with are fundamental characteristics of this product.
In this industry, lime is used as a cautery. It is also used as a whitening agent and to treat waste water.
Lime, or the correctives, are the fertilisers of choice for acidic and clay soils. The effective neutralising values obtain a practically instantaneous response from crops and harvests, thereby increasing the productivity of the fields.
There are centuries of experience in this area. Lime based mortars are long-lasting, do not crack, support climatic shocks, offer greater resistance to the propagation of sound, are better to work with and create an obstacle to the penetration of water – construction's worst enemy.
BIBLIOGRAPHY: www.lime.org - North American Lime Industry; www.abpc.org.br - Associação Brasileira da Industria de Cal; www.eula.be - European Lime Industry.