Released on = February 28, 2007, 3:28 am

Press Release Author = Ms Papita Saha

Industry = Environment

Press Release Summary = Clay can be used as liner materials, then Hazardous
chemicals affect like Lead can be reduced. Clay is not costly & it is easily
available and it is not create problem like Plastic materials.

Press Release Body = Lead is a heavy metal, which has adverse effect on our health &
on the environment also. If lead comes in contact with ground water, the later gets
contaminated. Lead builds up in the body over many years and can cause damage to the
brain, red blood cells and kidneys. The greatest risk is to young children and
pregnant women. Clay particle has porosity of 40 - 70% and permeability (K) value of
clay is less than 10-7 cm/s and so the rate of advection transport through clay is
very low. Clay has the property of swelling, plasticity, cohesion and adhesion. Low
porosity, slow diffusive transport, high adsorption of cations, and plasticity /
swelling is among the interesting property of clays. Some clay soils have the
ability to act as membrane that restricts the passage of charged solutes. An
experimental attempt has been taken in laboratory scale using clay as liner
materials to protect groundwater from contamination of Lead.




Web Site = http://

Contact Details = Ms.Papita Saha.
E-Mail:papitasaha@gmail.com