Efecto de Pseudomonas putida en la variación de la demanda bioquímica de oxígeno en los efluentes de la PTAR-Collique, Lima

In Peru, many effluents from domestic wastewater treatment plants often contain high concentrations of biological, physical or chemical contaminants; constituting low quality effluents. this context, the aim research was to evaluate effect produced by bacterial strain Pseudomonas putida ATCC 49128 on variation biochemical oxygen demand (BOD5) extracted plant (WWTP) located in town Collique, district Comas, province Lima, Peru. We conducted our experimental for a period 120 hours, establishing three treatments and control, with repetitions each. The known sources were different P. 49128, ratio 1x108, 1.5x108 2x108 CFU/ml. results demonstrated maximum reductions BOD5 COD 54.79% 51.62%, respectively. Furthermore, variations pH evident, fluctuations between 6.60 8.23, which is considered optimal purification process strain. medium, temperature varied very little, 25.36°C 27.47°C, making it statistically constant (p = 0.149 > α 0.05). Through research, we able conclude that significant reduction WWTP effluent wastewater.