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
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
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
