Efeitos da disposição de lodo de ETE de indústria alimentícia no solo: estudo de caso

Pós-graduação em Geociências e Meio Ambiente - IGCE

Avaliação do potencial de reuso agrícola do efluente de uma estação de tratamento de esgoto com alagados construídos

The study took place in a sewage treatment plant located at the actual Department of Water and Sewer in Bauru, city of Sao Paulo state. This treatment plant has an average entrance flow of 4.8 l. s-1 made by upflow anaerobic filter, followed by wetland systems constructed in parallel. . As objective of this study we evaluate the effectiveness of three systems of constructed wetlands, with three different types of plants (Lily pond, Giant papyrus and Cattail),quantify, and qualify the effluents at various stages of treatment to monitor their effectiveness and the possibility of reuse in agriculture. There was a satisfactory removal of organic matter, with a mean concentration of 36 and 39mg.l-1 at the , phases 1 and 2 of the operation, respectively. The constructed wetlands effluent nitrogen and phosphate concentrations were high throughout all the system and the removal efficiency of ammonia nitrogen was much lower than expected, then the system is functioning as secondary treatment and not as tertiary treatment. The concentrations of micro-organisms found in the final effluent were also high. Therefore, it is concluded that the results of removal efficiency of organic matter, of constructed wetland systems, meet the parameters required by legislation for effluent discharges but do not attend the parameters required for nitrogen and micro organisms. This way, these analyzed plants effluents are suitable for reuse in agriculture restricted irrigation

Viabilidade financeira da implantação do projeto de construção da estação de tratamento de esgotos - ETE - do Município de Lençóis Paulista - Estado de São Paulo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Uso de lodo de esgoto na produção de tapetes de grama esmeralda

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

Viabilidade do tratamento de água residuária sintética têxtil em reator aeróbio de leito fixo

A continuous flow reactor, inoculated with Aspergillus niger AN400, with total volume of 5 L was operated at 29 degrees C, with eight hours of retention hydraulic time and 150 L.h(-1) of air flow rate in order to remove 25 mg.L(-1) of Congo Red dye from a synthetic wastewater. The feeding of the reactor, inoculated with Aspergillus niger AN400, was done in two phases: Phase I, with 0,5 g/L of saccharose and Phase II, with no saccharose. In Phase I, it was possible to verify efficiencies of organic matter and color (mg Pt.L(-1)) removal of 80 +/- 16% and 82 +/- 10%, respectively. In Phase II, the efficiency of organic matter removal was 75 +/- 13% and color removal was 89 +/- 7%. The higher removals of nutrients were achieved by the reactor in Phase I with 25% to ammonia, 90% to nitrite, 93% to nitrate and 21% to phosphorus. Apparently, the presence of saccharose improved the removal of the nutrients.

Dispersão de bioaerossóis por aeradores em uma estação de tratamento de esgoto sanitário

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

Análise de econometria de dois sistemas naturais de tratamento de água residuária na suinocultura

The aim of this work was to develop a detailed econometric analysis to compare a constructed wetland system - combined model, and a waste stabilization pond system - facultative pond, as a function of six different sizes of finishing pig farms and two waste management systems - wet and dry. The constructed wetland system using dried waste management showed the best economic results. This finding is due to the low-cost implementation a year both per animal and per kilogram of meat. This system also required the smallest area for waste treatment. The use of stabilization pond with wet waste management system showed a lower implementation cost a year per animal and per kilogram of meat, but it required large areas. The econometric analysis of both systems of wastewater treatment revealed an economy of scale.

Análise econômica de dois sistemas naturais de tratamento de água residuária na suinocultura

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Bisfenol A: validação de método e ocorrência em água superficial e tratada da cidade de Araraquara

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo hidrodinâmico de floculadores mecanizados aplicados ao tratamento de água

Pós-graduação em Engenharia Civil - FEIS

Uso do poli (tereftalato de etileno) no pós-tratamento de água para a remoção de fármacos residuais

Pós-graduação em Engenharia Civil - FEIS

Avaliação de desempenho de uma estação de tratamento de esgoto por lagoas de estabilização com chicanas

Pós-graduação em Engenharia Civil - FEIS

Aplicação e efeito residual do lodo de esgoto em sistemas de produção de tapetes de grama esmeralda

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo da eficiência de estações de tratamento de esgoto - RTE e estações de tratamento de água - ETA na elimnação de resíduos de estrógenos naturais e sintéticos na UGRHI-13 (Tietê-Jacaré)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Sistema de gestão ambiental: subsídios para a implantação em uma estação de tratamento de esgoto a partir da análise crítica de estudos ambientais prévios

The process of environmental impact assessment (EIA), in the extent of previous environmental studies, has as one of its functions to provide subsidies to the actions of environmental managment of enterprises. However, the proper estructuring of programs that allows to support this managment does not often occurs. This research sought as one of its objectives to evaluate in which extent the process of EIA can be a subsidie for the EMS, providing basic elements of this system. In addition, more specifically, the research had as one of its objetives the development of subsidies for the implantation of an Environmental Managment System (EMS), based on the model of ISO 14001 (2004), for a sewage treatment plant yet to be constructed in the city of President Venceslau / SP. In order to achieve theses objetives, a discussion was held based on the evaluation of environmental studies available in the library of Cetesb / SMA. Still, for the elaboration of subsidies for the EMS of the treatment plant, the research was focused on the structuring of environmental management program, based on the information contained in its Preliminary Environmental Report (PER). The research had as one of its products, the development of subsidies for the planning and control of the environmental aspects and impacts and for the environmental program of the enterprise, based on the use of environmental indicators. It was concluded, based on the results that, in general, the previous environmental studies analyzed showed little emphasis on the phase of development of structured environmental programs that offer guidelines to achieve the desired results for the environmental performance of the company.