A sampling of websites related to wastewater recycling in the tropics. Some are technically oriented while others deal with larger infrastructure issues. Subjects are in alphabetical order:

Introduction to organic aquaculture
http://www.nal.usda.gov/afsic/AFSIC_pubs/afnotes5.htm

Introduction to commercial organic aquaculture http://www.naturland.de/certifiedorganicaquaculture.html

Introduction to aquaponics
http://www.attra.org/attra-pub/aquaponic.html#evaluating

Graywater recycling
http://www.oasisdesign.net/

Environmentally safe materials
EPEA Internationale Umweltforschung
http://www.epea.com

For current information on wastewater recycling facilities throughout Latin America, visit O Instituto Ambiental http://www.oia.org.br/new/ .

Use babelfish http://babelfish.altavista.com/ to translate website pages from Portuguese into into English.