Tertiary Water Treatment Methods

The first stage of tertiary treatment is filtration which helps primarily to remove residual suspended matter in wastewater.

Tertiary water treatment methods. Rapid sand filters micro straining and fluidized bed systems are commonly used in tertiary treatment. Activated carbon and sand are typically used. This third and last step in the basic wastewater management system is mostly comprised of removing phosphates and nitrates from the water supply. Tertiary treatment when the intended receiving water is very vulnerable to the effects of.

Sewage treatment in wastewater treatment. Tertiary treatment includes the removal of the remaining inorganic compounds phosphate sulfate ammonium and other refractory organic compounds by one or more physical separation methods such as carbon adsorption deep bed filtration and in some cases membrane based techniques such as reverse osmosis or electrodialysis. Tertiary treatment aims at further purification of waste water and also for its recycling. During tertiary treatment process different methods are used to remove all these contaminants and properties from wastewater.

Most processes involve some type of physicochemical treatment such as coagulation filtration activated carbon adsorption of organics reverse osmosis and additional disinfection. Filtration is a common method of tertiary treatment with either sand or activated carbon used to filter wastewater. Tertiary treatment of wastewater is the third stage of the wastewater treatment and is also known as an advanced treatment. Tertiary treatment of wastewater normally means final filtration of the treated effluent.

Beds of aquatic macrophytes and reed bed systems are also used in tertiary treatment. Tertiary treatment of wastewater is practiced for additional protection of wildlife after discharge into rivers or lakes. Tertiary treatment removes the load of nitrogen and phosphorus present in the water. Tertiary processes include filtration lagooning nutrient removal and disinfection.

The biomass should be harvested frequently to maintain the productivity of the system for efficient functioning. Alum also causes any solids that were not removed by primary and secondary wastewater treatment to group so they can be removed by filters. Substances like activates carbon and sand are among the most commonly used materials that assist in this process. It includes processes like filtration ion exchange activated carbon adsorption electro dialysis nitrification and denitrification.

Most wastewater plants use at least one tertiary water treatment process and some use two or more to decontaminate wastewater.