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- Title
TRATAMENTO DE ESGOTO SANITÁRIO UTILIZANDO COAGULANTE NATURAL SEGUIDO DE FILTRO ORGÂNICO.
- Authors
MONACO, PAOLA ALFONSA VIEIRA LO; DE MATOS, ANTONIO TEIXEIRA; RIBEIRO, IVAN CÉLIO ANDRADE; DA SILVA BATISTA, ANA PAULA; MIRANDA, SUYMARA TOLEDO; EUSTÁQUIO JÚNIOR, VALDEIR
- Abstract
The use of natural coagulants and organic filters locally produced and low financial cost can provide attenuation problems in discharge of wastewaters, without treatment, into watercourses. Was evaluated in this study the efficiency of the coagulation process, using the Ca(OH)2 in the preparation of Moringa seed extract, followed by filtration sawdust in the treatment of sewage. In the tank of 150 L containing sewage was added a solution of the moringa seed extract prepared with Ca(OH)2 0.011 mol L-1 at a concentration of 2.2 grams of seed per liter of wastewater to be treated. The coagulated effluent was applied to organic filter and the filtrate volume was converted in pore volume. Physical and chemical analyses were carried out in the influent and effluent of the two treatment structure for the evaluation of treatment efficiency. The treatments by coagulation followed by filtration provided removals of 98.0, 75.3, 75.8, 75.0, 79, 7, 59.0 and 88.3% of turbidity, Total Solids, Total Fixed Solids, Total Volatile Solids, Total Suspended Solids, Suspended Solids Fixed and Volatile Suspended Solids and of 51.2, 88.7, 72.6; 33.5 and 38.5% of Biochemical Oxygen Demand, Chemical Oxygen Demand, Phosphorus, Nitrogen and Sodium.
- Subjects
SEWAGE purification; COAGULANTS; CHEMICAL oxygen demand; PHOSPHORUS; NITROGEN; FILTERS &; filtration; INDUSTRIAL wastes
- Publication
Revista Caatinga, 2014, Vol 27, Issue 1, p28
- ISSN
0100-316X
- Publication type
Article