Avaliação da Eficiência de Um Sistema de Tratamento por Wetland Construído Aplicado ao Efluente de um Frigorífico de Suínos

Santos, Bruna Souza dos; Costa, Poliana Ferreira da; Eyng, Eduardo; Câmara, Carla Daniela

doi:10.5433/1679-0375.2016v37n2p13

Cited by 4 publications

(5 citation statements)

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“…In the Wetlands, due to filtration and the polishing of wastewater, there was greater removal turbidity and a decreased EC, due to the consumption of salts by the macrophytes (Santos et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Adaptation of domestic effluent for agricultural reuse by biological, physical treatment and disinfection by ultraviolet radiation

2019

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Domestic effluent reuse is an alternative for irrigated agriculture in situations of reduced water availability. However, as there is the presence of pathogens in wastewater, the disinfection process is necessary before use. This research evaluated the sanitary and agricultural viability of treated wastewater at a pilot-scale station composed of a septic tank, Wetlands and an ultraviolet radiation (UV) disinfection system. The Sewage Treatment Station (STS) is installed in the Agricultural Sciences Center, UFSCar, in Araras city, SP, and receives 2000 L of sewage daily, which was monitored in terms of pH, turbidity, electrical conductivity (EC), dissolved oxygen (DO), sodium (Na), potassium (K), calcium (Ca), total nitrogen (TN), total phosphorus (TP), magnesium (Mg), total organic carbon (TOC), total coliforms (TC), Escherichia coli (E. coli) and Sodium Adsorption Ratio (SAR).The removal efficiency of the parameters was calculated based on the input and output means of each treatment unit. Results indicated removal efficiency for K (68.2%), TN (54.1%) and TP (36.1%). The levels of Na (26.7%) and Ca (22.9%) demonstrated the contribution of these salts to the wastewater; however, SAR did not present any risks for soil sodification. Microbiologically, the STS presented removal efficiency of 4 and 5 log-cycles for TC and E. coli, respectively. Therefore, results of monitoring indicate that the treated wastewater presents sanitary and agricultural viability, and conforms with the current legislation.

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Section: Resultsmentioning

confidence: 99%

Adaptation of domestic effluent for agricultural reuse by biological, physical treatment and disinfection by ultraviolet radiation

2019

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“…Most of the performance data available for CW systems are from temperate regions. While the efficiency of the treatment could be considerably higher in tropical areas under certain conditions it may lead to eutrophication [67,68]. A wetland's efficiency can also be impaired when carrying capacity of the plants is reached.…”

Section: Performance Of the Cwmentioning

confidence: 99%

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2019

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The Sub-Middle region of the São Francisco River features exceptional conditions for pisciculture in terms of water resources, regarding both volume and quality. Attracted by the warm climate and the 820km² Itaparica Reservoir, the region has become a major aquaculture production area in Brazil, reaching 36 thousand tonnes per year [1]. The development of the aquaculture sector has proved to be an alternative source of income for families, improving their quality of life. In addition, it contributes an alternative supply to the regional market, reducing the negative effects of fishing on local rivers [2]. However, as aquaculture assumes greater significance as a global food production system, concerns about its environmental and social impacts have arisen. As in other animal production sectors, several aquaculture inputs-land, freshwater, feed and energy-are associated with significant environmental impacts.At the same time, the availability of these inputs is limited, and will likely become even more so in the future. In addition, water pollution, fish diseases, and escapes continue to compromise the sustainability of the sector [3]. The inappropriate discharge of industrial outlets and wastewater into the environment are causes of public concern as well as grounds for legal sanctions according to current Brazilian legislation [4]. Brazil has experienced recent changes in its National Aquaculture Legislation, which incorporate principles such as public participation, shared responsibilities and recognition of traditional knowledge of fishermen [5].

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“…A preocupação com a retenção da água da chuva está relacionada, na maioria das vezes, com a reutilização destas águas para fins não potáveis. Segundo RODRIGUES (2010), esta abordagem apresenta várias vantagens como por exemplo, a redução no consumo de água e a sua conservação. Porém, segundo PRODANOFF (2005), 90% dos poluentes são transportados para os corpos hídricos durante a passagem dos primeiros volumes de água provenientes do escoamento superficial.…”

Section: Introductionunclassified

Gestão Águas Pluviais Urbanas: Potencialidades Da Adoção De Sistemas De Tratamento De Águas Residuárias Para O First Flush

Jorge

Hanai

2020

R. gest. sust. ambient.

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O escoamento superficial de águas pluviais urbanas transporta materiais e resíduos para os corpos d’água, comprometendo a qualidade de suas águas pela recepção dos volumes de água no first flush, que possuem as maiores concentrações de poluentes. Assim, a retenção e o tratamento das águas pluviais são de extrema importância, proporcionando o lançamento de águas pluviais no corpo hídrico receptor com menor carga poluidora e melhor qualidade. A presente pesquisa teve como o objetivo identificar e analisar sistemas de tratamento de águas residuárias que possam ser adotados no tratamento de águas do first flush, visando contribuir com a gestão de águas pluviais urbanas e a manutenção da qualidade ambiental de córregos urbanos. A pesquisa empregou as seguintes etapas metodológicas: levantamento bibliográfico, caracterizando as águas pluviais urbanas e identificando as principais técnicas existentes de tratamento e disposição de águas residuárias; avaliação das técnicas e métodos identificados, estabelecendo-se critérios, marcos legais e padrões; e análise comparativa dos métodos e técnicas de reservação, tratamento e disposição de águas pluviais urbanas por meio do método SWOT. Foram realizadas análises de eficiência para o tratamento com base na literatura e a partir da aplicação da análise SWOT sobre as técnicas identificadas com melhor eficiência no tratamento do first flush, foi possível estabelecer seus pontos fortes, fracos, ameaças e oportunidades. Sendo assim, sugere-se a aplicação da combinação de Wetland e Semente de Moringa para o tratamento do first flush, tendo em vista a possível eficiência de tratamento dos parâmetros observados. Destaca-se sobretudo, a importância da implantação de sistemas que visem o manejo adequado das águas pluviais potencialmente poluidoras, para melhorar a qualidade de vida da população e reduzir os impactos ambientais gerados na bacia hidrográfica.

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Avaliação da Eficiência de Um Sistema de Tratamento por Wetland Construído Aplicado ao Efluente de um Frigorífico de Suínos

Cited by 4 publications

References 5 publications

Adaptation of domestic effluent for agricultural reuse by biological, physical treatment and disinfection by ultraviolet radiation

Adaptation of domestic effluent for agricultural reuse by biological, physical treatment and disinfection by ultraviolet radiation

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Gestão Águas Pluviais Urbanas: Potencialidades Da Adoção De Sistemas De Tratamento De Águas Residuárias Para O First Flush

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