1. SEWAGE TREATMENT IN
AMRITA
By
ARUN A V R

2. Effective Microbes (EM) Technology
• No chemicals are used in the entire treatment
process.
• The effluent water is recycled and utilized for
irrigating farms and gardens.
• The recycled water is free from heavy metals,
infectious microbes and other contaminants
• The cost efficiency of EM technology
compared with activated sludge process is
significant.

3. Effluent Treatment Plant
 A quantity of seven lakh litres of waste water is
generated from the hostels, residences, and
canteens every day.
 There are three ETPs for treatment of this
wastewater at the campus which utilizes
Effective Microbes (EM) technology.
 Such an elaborate bio-remediation plant, one
which adopts no chemical treatment, is
probably, the only one of its kind in India. The
water is injected back into the soil through
irrigation.

4. The sewage water is collected from all over the campus and
let into the screening chamber of the Effluent Treatment
Plant.

5. The filtered sewage water is let into the Equalisation Tank

6. In the Equalisation Tank, the sewage is mixed well so the oxygen level and Ph is
maintained evenly.

8. Agitated Aeration Tank – Here the bacteria present in the tank
takes care of the purification process.

9. Clarifier Tank

10. The water from the clarifier tank is the let into the dust
purifier.

12. The manure generated is sent to this tank directly and the
manure is used for the plants and trees in Amrita.