Qualidade química e bacteriológica da água utilizada em granjas produtoras de ovos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Avaliação do potencial de impacto ambiental e do uso da compostagem e biodigestão anaeróbia na produção de caprinos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Qualidade do mel Apis mellifera L. produzido na região do Pólo Cuesta, Estado de São Paulo

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Acidificantes em dietas de leitões desmamados:desempenho , peso de orgãos, ph, morfometria e microbiota intestinal

Pós-graduação em Zootecnia - FMVZ

Qualidade higiênico-sanitária e ocorrência de Aeromonas sp. e Escherichia coli em tilápias comercializadas no varejo

Pós-graduação em Aquicultura - FCAV

Coliform density in oyster culture waters and its relationship with environmental factors

The objective of this work was to evaluate the total and thermotolerant coliform densities in the oyster culture water of Cananeia, SP, Brazil, correlating these densities with environmental variables and tidal variations. Superficial water samples were collected in two tide conditions (spring and neap) from three areas of Cananéia municipality (Mandira, Itapitangui and Cooperostra). The three studied areas showed good conditions for the culture regarding coliform densities. The two tidal conditions differed significantly as to total coliform concentration; however, the same procedure was not performed for thermotolerant coliforms. No correlation was observed between water temperature, pH, and concentrations of total and thermotolerant coliforms. Coliform density was positively correlated with rainfall and negatively correlated with salinity. Spring and neap tides differed significantly as to coliform number. Simple diagnosis of environmental conditions of the crop fields is insufficient to assess water quality of shellfish cultivation. A continuous monitoring program of planted areas is necessary both for the assessment of water quality potential for marine culture and for ensuring safe consumption of seafood, besides constituting an important tool to understand the relationships between contamination and the involved environmental variables.

Listeria monocytogenes, E. coli O157, Salmonella spp. e microrganismos indicadores em carcaças bovinas para exportação

Samples were collected from 100 carcasses in a slaughterhouse exporter, located within the State of São Paulo, sampled over a year through the sponge method, applied to the chest of the animal. Samples were taken at three points, denominated A, B and C, each carcass sampled at three points located in the following steps: after bleeding (A) after skinning (B) and after washing (C). Research was conducted for Listeria sp., E. coli O157, Salmonella spp. and Micro-organism (Petrifilms ® AC, EC and EB). Listeria or E. coli O157 were not isolated in any of the 300 samples. Salmonella spp. was isolated in nine, eight at point A and one at point B. For Mesophiles, scores ranged from 0 to 6.8 log UFC/cm²; for Total coliforms, 0 to 4.57 log UFC/cm² and E. coli from 0 to 4.38 log UFC/cm². With the results obtained and compared with the literature, it is concluded that the establishment in this study has both sanitary quality (due to the low prevalence of pathogens) and hygienic quality (due to the sharp decrease in the microbial load of indicators along the line.

Desenvolvimento de néctar à base de mamão (Carica papaya L.) adicionado de inulina e oligofrutose

Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE

Avaliação microbiológica de carcaças congeladas de perus adquiridas no comércio varejista

Pós-graduação em Medicina Veterinária - FCAV

Ozonizaçãoe peroxização de efluente sanitário proveniente de alagados construídos e reator compartimentado anaeróbio/aeróbio visando reuso

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Estudo da qualidade da água distribuída pelo poço artesiano da FEG em relação à água servida pelo abastecimento público de Guaratinguetá

We conducted a study of the quality of water distributed by Artesian Well in relation to water supply served by the public for purposes of human consumption of UNESP Campus Guaratinguetá. Two sections of the network were randomly chosen and monitored for 105 days: the stretch of the pipeline started off the Water Treatment Station of the Autonomous Service of Water, Sewage and waste in the Municipality of Guaratinguetá and ended in a point consumption of the Child Family Center, while the section B began at the output of an artesian well and finished in a point of consumption of the Department of Civil Engineering. It is the deterioration of water quality in parts A and B, through comparative analysis of Bicarbonates, Total Hardness, Total Iron, free residual chlorine, pH, Total Residual, Turbidity, Conductivity, Color, Fecal Coliforms and Total Coliforms. Among the observations that can be highlighted: the Total Hardness was found in highest concentration in the extract; for Total Iron significant variations were obtained for both parts, and reduction of this parameter in two points of consumption analyzed, not the expected increase concentration, because the contact of water along the pipe, the CRL showed significant depletion to section A, which can be related to impurities in the water, the presence of biofilm on the walls of pipes, or because this is the stretch of greater extent to be covered by water for pH, this indicated that the water is alkaline and slightly acidic stretch in section B; Turbidity was found for the higher concentration to the passage, and a considerable reduction of this parameter at point consumption due to deposition of particulate matter along the stretch, the conductivity also showed a higher concentration in the extract, as well as an increase in this parameter at the point of consumption. Upon leaving ... (Complete abstract click electronic access below)

Uso de sistemas construídos de áreas alagadas (Constructed Wetland System - CWS) para tratamento de efluentes

A large proportion of fresh water is greatly impaired due to increasing pollution; this could be minimized through the expansion of investment in sanitation programs. But the major problem faced by third world countries and developing ones in this respect, is the high cost of projects and their implementation. In an attempt to find a simple technology, efficient and inexpensive, this study aimed to verify the effectiveness of using constructed wetland systems (CWS) for removal of bacteria and nutrients from sanitary sewer effluent from the STS Piracicamirim - Piracicaba - SP. The installation of prototypes was followed, and testing prior to regularize the flow held, but due to malfunction of these and outages of the STS activity can not evaluate the effectiveness of both as to the parameters proposed: temperature, pH, dissolved oxygen, conductivity, total dissolved solids (TDS), nitrite, nitrate, ammonia, total nitrogen, total phosphorus, chemical oxygen demand (COD), sulfide, sulfate, biochemical oxygen demand (BOD), total coliform and Escherichia coli. To establish results about the effectiveness of these types if the system were conducted literature reviews of papers published with the same theme. Analysis of these results showed fairly good efficiencies in wastewater treatment, especially for nutrients and coliforms

Tratamento de água pluvial para fins não potáveis com utilização de amido de milho como coagulante em filtração cíclica em escala de laboratório

The aim of the present work is to investigate a simplified rainwater treatment strategy for nonpotable use. For this, there were simulated in laboratory scale the treatment conditions of a system that employs Corn Starch as a coagulant in cyclic filtration (from 1 to 5 filtration cycles). A commercial Corn Starch in different dosages was used (0,1; 0,2; 0,4; 0,6; 0,8; 1,0; 1,5; 2,0; 2,5; 3,0; 3,5; 4,0; 4,5; 5,0; 5,5; 6,0; 6,5; 7,0; 7,5; 8,0; 8,5 e 9,0 mg/L). The NBR 15527/07 recommended parameters were monitored on the inflow and outflow and compared to different first flushes (0.5; 1.0 and 1.5mm). The obtained results indicate that the 6.0mg/L dosage presented the best results (removal efficiency of 86% of turbidity; 88% of apparent color and absent of total and faecal coliform residuals). However, it was not possible to prove the filtration cycles benefit, in laboratory scale, because for some Corn Starch dosages the water did not present better quality when increasing the number of cycles.

Diagnóstico ambiental do Córrego Bandeirantes, município de Rio Claro, SP: parâmetros biológicos e metais-traço

This study was conducted to verify water quality and environmental impacts related to the occupation of the watershed of the Bandeirantes stream, located in Rio Claro, SP. The intention is to propose measures to enable the mitigation of negative impacts, and boosting the recovery and maintenance of the quality of water resources, preventing its complete degradation. Water analysis were performed at three different points, east, crossing the Ring Road (dirt road) and near the confluence with the Ribeirão Claro. The results indicated significant degradation of water, especially after the crossing, where it witnessed the accumulation of solid waste and easy access to the stream, both for animals as for people, due to limited riparian it. Another impact was observed the current construction of the Forum of Rio Claro in the right side of the stream studied, causing change in the landscape, change the flow properties and removal of existing vegetation at the site of work, defined as an environmentally protected area, as determined by existing law. Measures such as: restoration of riparian zones, effluent treatment, planned urban growth and environmental education of the population, would be essential to mitigate the environmental impacts of watershed Bandeirantes stream

Coleta e estratégia simplificada de tratamento de água de chuva para fins não potáveis com ênfase no uso industrial

Este projeto investigou alternativa de tratamento simplificada para fins não potáveis para aplicação em escala industrial. É neste contexto que esta pesquisa alojou sua importância – nas possíveis estratégias de tratamento, em especial na utilização de sistema contendo filtro de pressão e no uso do amido natural de milho como coagulante, auxiliando no processo de filtração, visando aumento da segurança sanitária e da qualidade da água de chuva disponibilizada para aproveitamento. A hipótese do trabalho foi investigar a possibilidade da diminuição ou até eliminação do volume de água descartada na operação de abstração da primeira chuva. Para tal, foram realizados ensaios em escala de laboratório com uma precipitação coletada nos dias 10/03/08 e 03/04/2008. Os resultados da estratégia de tratamento delineada foram comparados com os obtidos pela estratégia convencional com descarte de 1,5 mm da primeira chuva, o que corresponde a um volume de 558 L de água de chuva. Utilizou-se a dosagem de 6,0 mg/L para fim de comparação com a água bruta, sem nenhum tratamento, e com a água somente filtrada. Os resultados não confirmaram a hipótese de que o tratamento com amido natural permite eliminar a etapa de abstração da primeira chuva, porém, vale ressaltar que a qualidade da água coletada já era muito boa previamente ao tratamento. Merece destaque o fato de que a amostra de precipitação submetida aos ensaios apresentados foi coletada em período de freqüente precipitação e, embora tenha sido observado o interstício de 3 dias consecutivos de estiagem a qualidade da água de chuva coletada pode ser considerada boa (34UH de cor aparente; 8,84 UT de turbidez e 238,2 (NMP) de coliformes totais e 3 (NMP) de coliformes termotolerantes). Acredita-se que, para o caso de precipitações ocorridas após longo período de estiagem, a necessidade de tratamento... (Resumo completo, clicar acesso eletrônico abaixo)