Wetland projects developed in Brazil

The first studies with constructed wetlands undertaken in Brazil were the result of observations made from the Amazon flood plains. The first attempt to use this capacity to change the quality of the water, in the sense of purification performed in Brazil using constructed wetland systems, was made...

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Bibliographic Details
Published in:Water science and technology 1999, Vol.40 (3), p.19-25
Main Authors: Salati, E., Salati, Eneida
Format: Article
Language:English
Subjects:
Applied sciences
Aquatic plants
Artificial wetlands
Biological and medical sciences
Biological treatment of waters
Biotechnology
Brazil
Capacity
constructed wetland
Crushed stone
Depuration
Drinking water
Environment and pollution
Environmental control
Exact sciences and technology
filtering soil
Filtration
Floodplains
Fundamental and applied biological sciences. Psychology
General purification processes
Gravel
Industrial applications and implications. Economical aspects
Institutions
Investment
New technology
Pollution
Purification
rice production
Sanitation
Self purification
Sewage
Sewage treatment
Sewage treatment plants
Soil
Soil filters
Technology
wastewater
Wastewater treatment
Wastewaters
Water conveyance
Water purification
Water shortages
Water supply
Water supply systems
Water treatment and pollution
Wetlands
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Summary:The first studies with constructed wetlands undertaken in Brazil were the result of observations made from the Amazon flood plains. The first attempt to use this capacity to change the quality of the water, in the sense of purification performed in Brazil using constructed wetland systems, was made by Salati et al. (1982) After that, new technologies were developed in a focused attempt to increase the efficiency of the system and reduce investments. Over these 18 years, persuading the Brazilian scientific community as well as the environmental control agencies to give due attention to this kind of research has required endless efforts. Only in recent years have major institutions responsible for sewage treatment and potable water supply been concerned with this type of technology for solving real problems. These institutions are as follows: SABESP (Basic Sanitation Company of São Paulo State), SANEPAR (Sanitation Company of Paraná State) and CESP (Electric Company of São Paulo State). One of the private institutions that has systematically worked in the design and projects of constructed wetlands is the Institute of Applied Ecology. This institution has enhanced and developed a water depuration system based on the purifying capacity of the soil. The wetlands with filtering soils are systems formed by overlapping layers of crushed stone, gravel and soil planted with rice. This technology has been used in sewage treatment and also in water supply systems
ISSN:0273-1223
1996-9732
DOI:10.1016/S0273-1223(99)00416-3