Catalogue

1212 factsheets

Network Design and Dimensioning

The aim of a distribution network is to supply a community with the appropriate quantity and quality of water. There are four network types: dead end...
Last updated 14 Mayo 2019

Nominal Groups

The nominal group technique is used for a meeting with a small group of participants with the aim of producing and prioritising ideas about a...
Last updated 07 Julio 2019

Non-planted Filters

A non-planted filter is a box filled with sand and gravel, through which wastewater flows and is filtered. There are several types of non-planted...
Last updated 10 Junio 2019

Non-Planted Filters

Non-planted sand or gravel filters are frequently applied for domestic greywater treatment throughout the world. It consists in a container filled...
Last updated 16 Abril 2019

Nonbiodegradable Wastewater

Last updated 07 Febrero 2018

NUSP Overview

The population growth, rural migration and the technological and industrial boom are causing an extremely rapid urbanisation in India, posing...
Last updated 27 Abril 2018

Nutrient Requirements

Like other living organisms, plants have basic needs for their survival and growth. Apart from the easily available carbon dioxide (CO2) and light,...
Last updated 29 Junio 2019

Objectives, Indicators and Targets

Last updated 27 Abril 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 Mayo 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 Junio 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 Septiembre 2019

Optimisation and Preventing Possible Failures

Coming soon...
Last updated 07 Febrero 2018

Optimisation at Home

Last updated 29 Junio 2019

Optimisation in Agriculture

Last updated 09 Abril 2019

Optimisation in Industry

Last updated 24 Marzo 2019