Effluent Treatment Plants (ETP)
Effluent water treatment plants, on the other hand, are quite the opposite as they treat industrial effluent, that is, the wastewater that occurs as a result of the flow of byproducts from industries.
How ETP’s work?
ETP’s involve a process of preliminary, primary, secondary and tertiary treatment.
• Preliminary treatment: Here the emphasis is given to physical techniques such as screening, sedimentation, filtration, clarification etc. The objective of this is to remove as much solid physical matters as possible before sending the effluent for further treatment.
• Primary treatment: This phase involves the removal of solid waste and organic matter. Here chemicals are added to break down any solid and chemical waste. This is done by chemical coagulation, chemical precipitation or the addition of sodium carbonate or hydrochloric acid in order to control the pH levels.
• Secondary treatment: Here the suspended particles and any biodegradable matter are removed with the help of many chemical processes as well as biological processes.
• Tertiary treatment: The tertiary treatment uses a combination of all three- physical, chemical and biological processes to remove any final traces of solids or contaminants from the industrial effluent.
ETP’s are used in sectors that have high and extensive chemical contamination in the wastewater, such as manufacturing in pharmaceuticals and chemical industries such as textile and dye manufacturing.
|Impurities to be removed||Oil and Grease|
|Industry||Dairy Industry, Paper Mills, Automobile, Sugar Industry, Chemical/Petroleum Industry|
|Installation Type||Completes Civil work with Installation|
|Installation/Civil Work||Installation Available|
|Treatment Technique||Clarifier, Fluidized Aerated Reactor, Mixed Bed Bio Reactor, Bio Tower|