Types of Sewage Treatment Plants
1. Activated Sludge Process
This is one of the most common methods used in sewage treatment. It involves aerating the sewage to promote the growth of microorganisms that break down organic matter.
2. Trickling Filter
A trickling filter consists of a bed of stones or plastic media where sewage is spread out. Microorganisms grow on the media and digest the organic matter as the sewage trickles over it.
3. Sequencing Batch Reactor (SBR)
This method treats wastewater in batches. The SBR process combines several treatment steps into a single tank, allowing for efficient treatment and settling.
4. Membrane Bioreactor (MBR)
The MBR process combines biological treatment with membrane filtration. It effectively removes solids and pathogens, producing high-quality effluent.
5. Constructed Wetlands
These are engineered systems that use natural processes involving wetland vegetation, soils, and associated microbial assemblages to treat wastewater.
6. Anaerobic Digestion
This method involves breaking down organic matter in the absence of oxygen. It is commonly used for treating sludge and can produce biogas as a byproduct.
7. Oxidation Ditch
This is a type of extended aeration system where wastewater is circulated through a circular channel, allowing for aerobic treatment by microorganisms.
8. Dissolved Air Flotation (DAF)
DAF is a process used to separate suspended solids from liquids. It involves the injection of air into the wastewater, causing particles to float to the surface for removal.
9. Electrocoagulation
This method uses electrical currents to remove contaminants from wastewater, effectively reducing pollutants and improving water quality.
10. Biofilm Reactors
These systems utilize biofilms to treat wastewater. Microorganisms attach to surfaces and form a biofilm, which breaks down organic matter as wastewater flows over it.
11. Bio STP / Bio Synk technology
These are the combination of technologies to treat the waste water with almost zero power and to meet the stringent norms uses advance oxidation with little electricity and saves 80% of maintenance cost compare to any technology in the market.
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