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| Barana,Ana C.; Botelho,Viviani M. B.; Wiecheteck,Giovana K.; Doll,Maria M. R.; Simões,Deise R. S.. |
| Agroindustries are major consumers of water. However, to adapt to environmental trends and be competitive in the market, they have sought rational use of water through water management in their activities. Cleaner Production can result in economic, environmental and social benefits, and in actions that promote reduction in water consumption. This case study was conducted in a slaughterhouse and poultry cold storage processing plant and aimed to identify points of excessive water consumption, and to propose alternatives for managing water resources by reducing consumption. Consumption data are presented in relation to the processing stages with alternatives proposed for the rational use of water, such as closure of mains water during shift changes.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water consumption; Cleaner production; Poultry processing. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000100018 |
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| Leick,Sheilla A.; Oliveira,João G B. De; Tavares,Karoline A.; Lopes,Deize D.; Barana,Ana C.. |
| ABSTRACT This study aimed to evaluate a structured bed reactor with intermittent aeration in the simultaneous removal of Chemical Oxygen Demand (COD) and Total Nitrogen (TN) from sanitary sewage. The reactor was operated for 339 days with a Hydraulic Retention Time (HRT) of 12 hours, temperature of 30 ± 1°C and continuous feeding. Nine trials were carried out in which three different effluent recirculation flow (Qr), 3, 2 and 1 time the incoming flow, were evaluated in three different aeration times, of 1h, 2h, and 3h, in 3 hour cycles. The results showed that different recirculation flows and aeration times did not influence the removal of COD, which reached 89%±12. It was observed that the efficiency of TN removal was higher in the tests with higher... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioreactor; Wastewater; Denitrification; Nitrification; SND (Simultaneous Nitrification and Denitrification). |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000601236 |
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