TECHNOLOGIES

Arvind Envisol has the proprietary technologies needed for cost-effective water treatment including recycling and recovery. Our water
conservation solutions are being used by major industries around the world for industrial, commercial, and municipal applications. Water
optimization is a critical component of all modern establishments given the urgent need to save and recover water. We have the
technologies coupled with the know-how and experience to provide customized wastewater treatment solutions.

TERTIARY TREATMENT OF WASTEWATER

Secondary treatment removes 85 to 90% of BOD, TSS, and the small portion of nitrogen, phosphorus, and heavy metals from wastewater. Tertiary treatment of wastewater is the third stage of the wastewater treatment and is also known as an advanced treatment. Tertiary treatment removes the load of nitrogen and phosphorus present in the water. It includes processes like filtration, ion exchange, activated carbon adsorption, electro dialysis, nitrification, and denitrification.

Treatment options in tertiary treatment depend upon the characteristics of effluent after secondary treatment and what kind of water is needed at the end of the treatment. For example, if we need potable water then filtration and disinfection are to be done on the wastewater.

Filtration process removes the particulate matter by passing water through the porous media. The filtration process consists of different types of media which are usually made up of sand, gravel, and charcoal. There are two types of sand filtration, slow sand filtration, and rapid sand filtration.

Membrane technology is used to treat a variety of wastes including sewage, organic and inorganic matter and water-soluble oil wastes. The membrane processes are classified on the basis of driving force and separation mechanism such as Multi Filtration (MF), Ultrafiltration (UF), Nano filtration (NF), Reverse Osmosis (RO), and Forward Osmosis (FO)

Ozone is introduced in the process to destroy microorganisms and degrade organic pollutant. Ozone gas (O3) is formed by passing oxygen through a high voltage electric field. Nowadays ozone is the widely used disinfectant after chlorine.