Use of the HDS System (Hydric Depuration with Soils) Associated to Other Constructed Wetlands Techniques for Public Water Supply

1999 ◽  
Vol 40 (3) ◽  
pp. 203-210
Author(s):  
E. Salati ◽  
E. Salati ◽  
E. Salati ◽  
S. M. Tauk-Tornisielo ◽  
D. F. Brega ◽  
...  
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Constructed Wetlands ◽  
Pilot Project ◽  
Sao Paulo ◽  
Public Water Supply ◽  
São Paulo ◽  
Experimental Station ◽  
Water Treatment Station ◽  
The Town

Two projects of water treatment for public water supply were developed and operated by using combined systems of constructed wetlands. One of the projects was carried out in the town of Analândia, São Paulo, Brazil and wetlands with floating aquatic plants associated to the HDS system were used. Nearly 6,480 inhabitants were supplied. The other conducted project was an experimental station in partnership with SABESP (São Paulo State Sanitation Agency / Brazil), for the pretreatment of 1,700 l.s−1 of waters from the Cotia River, which is used for the population's supply after conventional treatment at the Lower Cotia Water Treatment Station. For this pilot project, wetlands with emergents and floating plants associated to the HDS system were used. The proposed objectives were achieved in both projects.

Wetland Projects Developed in Brazil

1999 ◽  
Vol 40 (3) ◽  
pp. 19-25 ◽  
Author(s):  
E. Salati ◽  
Eneida Salati ◽  
E. Salati
Keyword(s):  
Water Supply ◽  
Constructed Wetlands ◽  
New Technologies ◽  
Environmental Control ◽  
Sewage Treatment ◽  
Sao Paulo ◽  
Water Supply Systems ◽  
São Paulo ◽  
Paulo State ◽  
São Paulo State

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.

scholarly journals A comparative analysis of caries and fluorosis among cities with and without public water supply fluoridation in São Paulo State, Brazil

2010 ◽  
Vol 25 (1) ◽  
pp. 15-19 ◽  
Author(s):  
Suzely Adas Saliba Moimaz ◽  
Adriana Cristina Oliva Costa ◽  
Lígia Prandi da Silva ◽  
Orlando Saliba ◽  
Cléa Adas Saliba Garbin ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Water Supply ◽  
Sao Paulo ◽  
Public Water Supply ◽  
São Paulo ◽  
Paulo State ◽  
São Paulo State

scholarly journals Fluoride concentration in water at the area supplied by the Water Treatment Station of Bauru, SP

2006 ◽  
Vol 14 (5) ◽  
pp. 365-370 ◽  
Author(s):  
Carolina Simonetti Lodi ◽  
Irene Ramires ◽  
Marília Afonso Rabelo Buzalaf ◽  
José Roberto de Magalhães Bastos
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Water Samples ◽  
Fluoride Concentration ◽  
Descriptive Statistics ◽  
Public Water Supply ◽  
The Public ◽  
Water Treatment Station ◽  
Sensitive Electrode

OBJECTIVE: to analyze the fluoride concentration in the public water supply at the area supplied by the Water Treatment Station of Bauru and classify the samples as acceptable or unacceptable according to the fluoride concentration. MATERIAL AND METHODS: samples were collected from 30 areas at two periods, October 2002 and March 2003. The fluoride concentration in the samples was determined in duplicate, using an ion sensitive electrode (Orion 9609) connected to a potentiometer (Procyon, model 720). Samples with fluoride concentration ranging from 0.55 to 0.84 mg F/L were considered acceptable, and those whose concentration was outside this range as unacceptable. Data were analyzed by descriptive statistics. RESULTS: the fluoride concentration of the water samples varied between 0.31 and 2.01 mg F/L. Nearly 56% of the samples were classified as acceptable. CONCLUSION: the variations in fluoride concentration at the area supplied by the Water Treatment Station reinforce the need of constant monitoring for maintenance of adequate fluoride levels in the public water supply.

Hydrochemical investigation of barium in the public water supply wells of Sao Paulo state, southern Brazil

2015 ◽  
Vol 74 (9) ◽  
pp. 6599-6612 ◽  
Author(s):  
Tatiana Tavares ◽  
Reginaldo Bertolo ◽  
Bruna Fiúme ◽  
Alessandra Crespi ◽  
Veridiana Martins ◽  
...  
Keyword(s):  
Water Supply ◽  
Sao Paulo ◽  
Public Water Supply ◽  
São Paulo ◽  
Southern Brazil ◽  
The Public ◽  
Paulo State ◽  
São Paulo State

Physicochemical and microbiological quality of the public water supply in 38 cities from the midwest region of the State of São Paulo, Brazil

2019 ◽  
Vol 91 (8) ◽  
pp. 805-812 ◽  
Author(s):  
Ághata Regina de Oliveira Alves Palmeira ◽  
Valdete Aparecida Terolo Higa da Silva ◽  
Francisco Lopes Dias Júnior ◽  
Regina Célia Arantes Stancari ◽  
Gabriel Antonio Nogueira Nascentes ◽  
...  
Keyword(s):  
Water Supply ◽  
Microbiological Quality ◽  
Sao Paulo ◽  
The State ◽  
Public Water Supply ◽  
São Paulo ◽  
The Public ◽  
Midwest Region

scholarly journals Seven years of external control of fluoride levels in the public water supply in Bauru, São Paulo, Brazil

2013 ◽  
Vol 21 (1) ◽  
pp. 92-98 ◽  
Author(s):  
Marília Afonso Rabelo BUZALAF ◽  
Camila Mascarenhas MORAES ◽  
Kelly Polido Kaneshiro OLYMPIO ◽  
Juliano Pelim PESSAN ◽  
Larissa Tercília GRIZZO ◽  
...  
Keyword(s):  
Water Supply ◽  
Sao Paulo ◽  
External Control ◽  
Public Water Supply ◽  
São Paulo ◽  
The Public

scholarly journals Epidemiology of fluorosis and dental caries according to different types of water supplies

2010 ◽  
Vol 15 (suppl 1) ◽  
pp. 1841-1847 ◽  
Author(s):  
Solange de Oliveira Braga Franzolin ◽  
Aguinaldo Gonçalves ◽  
Carlos Roberto Padovani ◽  
Leda Aparecida Francischone ◽  
Sara Nader Marta
Keyword(s):  
Water Treatment ◽  
Dental Caries ◽  
Water Supply ◽  
Public Water Supply ◽  
Entire Sample ◽  
Water Supplies ◽  
Different Types ◽  
Water Treatment Station ◽  
The Relationship

The aim of this article is to investigate the relationship between fluorosis/dental caries in schools, according to the level of fluoride in public water supply. The sample comprised of twelve-year-old daytime students (360) of both genders, attending schools close to the region where they were born. The schools were classified into three groups according to the presence of fluoride in the water supply: 1) fluoridation in the Water Treatment Station-WTS; 2) Direct Fluoridation in Wells-DFW; and 3) Non Fluoridated Areas-NFA. The χ2 and Goodman tests (significance=5%) were used to evaluate the association between the origin of water and degree of fluorosis; percentage of distribution and descriptive measures were used for investigation of the degree of fluorosis. The following outcomes were predominant: presence of dental caries in the entire sample (P<0.05); absence of fluorosis in both genders, for white individuals and subjects living in areas supplied by both DFW and NFA (P<0.05). There was no difference in the severity of fluorosis between the sources of water supply (P>0.05). Dental caries is still an important problem in this population, despite the establishment of preventive measured. The observation of fluorosis in students living in non-fluoridated areas confirms the presence of other sources of fluoride.

The Spanish-Dutch War and the Policy of the Spanish Crown toward the Town of Sao Paulo

Itinerario ◽  
2002 ◽  
Vol 26 (1) ◽  
pp. 107-125
Author(s):  
Rafael Ruiz
Keyword(s):  
Sao Paulo ◽  
Spanish Empire ◽  
Dutch Republic ◽  
São Paulo ◽  
The South ◽  
The North ◽  
South Of Brazil ◽  
The Town ◽  
Made In ◽  
United Provinces

Historians have made in depth studies on the consequences of the Dutch incursions and invasion into the north and northwest of Brazil, for both the Spanish Empire and the United Provinces of the Dutch Republic. The purpose of this paper is to show that the war between Spain and the Dutch Republic also affected the south of Brazil and that it forced Spain to adopt measures that altered the policy of the Spanish Crown regarding Sao Paulo.

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