14 factsheets

Objectives, Indicators and Targets

Last updated 27 April 2018

Open Channels and Drains

A storm water system with open channels for the discharge of rainwater exists in most urbanised areas. The channels usually drain off rainwater into…
Last updated 29 May 2019

Open Planning of Sanitation Systems

The objective of the Open Planning of Sanitation Systems (OPSS) approach is to provide a practical guideline for the planning and implementation of…
Last updated 16 June 2019

Operation and Maintenance

Generally, water and sanitation projects experience their most serious problems with operation and maintenance and with cost recovery aspects.…
Last updated 04 September 2019

Optimisation and Preventing Possible Failures

Coming soon...
Last updated 07 February 2018

Optimisation at Home

Last updated 29 June 2019

Optimisation in Agriculture

Last updated 09 April 2019

Optimisation in Industry

Last updated 24 March 2019

Optimisation of Existing Systems

Coming soon...
Last updated 27 April 2018

Ordnance Factory - Nagpur

The system considered in this NaWaTech case study is located at the Ordnance Factory Ambajhari (OFAJ), Govt. of India, Nagpur, Maharashtra, India. It…
Last updated 16 April 2019

Our lessons learned & recommendations

Last updated 12 October 2020

Outline of Your Area

Last updated 29 June 2019

Overhung Latrine

An overhung latrine consists of a superstructure and floor built over water. A squat hole in the floor allows excreta to fall directly into the water…
Last updated 31 May 2019


Ozonation (also referred to as ozonisation) is a chemical water treatment technique based on the infusion of ozone into water. Ozone is a gas…
Last updated 23 May 2019