Decentralised Waste Water Treatment Systems in Auroville

More than 60 natural wastewater treatment systems are in use in Auroville. Most recycling systems combine a pre-treatment device, a main treatment planted filter, and a post-treatment holding facility, usually consisting of one or more ponds or polishing tanks. Research and development has shifted to more efficient pre-treatment. Auroville has several units which are actively implementing waste water treatment systems, including CSR, Aqua engineers, and others.

Some of the Systems

Merriam Hill / Centre Field
septic tank/ planted filter/ collection tank / 15 users

Carel's House / Samasti
septic tank/ planted filter/ polishing tank / 16 users

Shradhanjali / Auroshilpam
septic tank/ lagoon system with aquatic plants/ overflow/ 27 users

Jean & Eva's House / Djaima
septic tank/ planted filter/ collection tank/ 2 users

Djaima community housing
septic tank/ planted filter/ infiltration/ 18 users

Vikas community
Lagoon system with aquatic plants/ polishing tank/ 25 users

Auromode / Auroshilpam
baffled reactors/planted filter/ sump/ 130 users

Grace community
Imhoff tank/ rootzone treatment system/ overflow sump/ 35 users

Hilde and Tency's House (2 treatment systems) / Centre Field
settling tank/ planted filter/ polishing tank/ 4 users

Tineke and Silvano's House / Centre Field
septic tank/ planted filter/ collection tank/ 2 users

Samasti Community II
septic tank/ planted filter/ collection tank/ 20 users

Prarthna community
septic tank/ planted filter/collection tank/ overflow & infiltration/ 25 users

Invocation, Surrender and Arathi community
Imhoff tank/ planted filter/ polishing pond/ 60 users

Visitors' Centre
septic tank/ flushing tank/ planted filter (vertical type)/ overflow canal / 50 users

Aspiration Community
septic tank/ Imhoff tank/ planted filter/ polishing pond/ 150 users

Natural Colour dying unit / Kottakarai
Imhoff tank/ aeration bed/ polishing tank/ industrial small scale user

Centre Guest House Kitchen/Laundry
planted filter/ collection tank/

Quiet Healing Centre
septic tank/ rootzone treatment system / collection tank/ 35 users

Valerie and Michael's House / Centre Field
planted filter/ infiltration/ 4 users

Samya and Kalya House/ Centre Field
Septic tank/ planted filter/ infiltration / 3 users

Auroville Centre for Scientific Research / Auroshilpam
septic tank/ planted filter/ infiltration/ 25 users

Collective Solar Kitchen
Imhoff tank/septic baffled reactor tank / infiltration pond

Madhuca Community
Imhoff tank/ planted filter/ polishing pond / 12 users

Kuilapalayam Village community toilets
septic baffled tank reactor / infiltration

Edayenchavadi Village community toilets
septic baffled tank reactor / infiltration

Promesse
septic tank/ planted filter / infiltration/ 6 users