Sewage Treatment Plant

Sewage Treatment Plant

A facility that processes wastewater to remove contaminants and produce treated effluent for safe discharge into the environment.

Primary Treatment

The initial phase of wastewater treatment that involves physical processes to remove solids and floating materials.

Trickling Filter

A biological treatment method where wastewater is sprayed over a bed of media containing biofilm to encourage microbial breakdown of organic matter.

Activated Sludge

A common form of secondary treatment where air is pumped into a mix of wastewater and microorganisms to facilitate aeration and breakdown of pollutants.

Tertiary Treatment

The final step in wastewater treatment aimed at improving water quality before it is discharged, often involving advanced processes like filtration and nutrient removal.

Disinfection

The process of eliminating or reducing harmful microorganisms from wastewater before it is released into the environment.

Anaerobic Digestion

A treatment process that reduces organic material in sewage under non-oxygen conditions, producing biogas and digestate.

Composting

The process of mixing sludge with organic materials to accelerate decomposition and produce a nutrient-rich fertilizer.

Ozone Treatment

A disinfection method that uses ozone gas to oxidize and eliminate pathogens and organic contaminants in wastewater.

Nutrient Removal

Processes employed in wastewater treatment to reduce the levels of nitrogen and phosphorus, which can cause environmental issues such as eutrophication.

Chemical Precipitation

A method used in wastewater treatment to remove dissolved substances by converting them into solid particulates that can be settled out.

Filtration

A physical process used in wastewater treatment to remove suspended solids, impurities, and microbes from water.

Clarifier

A settling tank where solids are removed from liquids by gravity during the wastewater treatment process.

Biological Treatment

A treatment method that leverages microbial activity to decompose organic substances in wastewater.

Phosphorus Removal

Techniques used to explicitly reduce the concentration of phosphorus in wastewater to mitigate environmental impacts.

Oxygen Demand

The amount of dissolved oxygen needed by aerobic microorganisms to break down organic matter in water.

Sludge Processing

The treatment and management of residual sludge derived from wastewater treatment processes to reduce volume and produce stable products.

Return Activated Sludge

The portion of activated sludge that is returned to the aeration tank to help maintain the microbial population necessary for treatment.