Optimization Applying Response Surface Methodology in the Co-treatment of Urban and Acid Wastewater from the Quiulacocha Lagoon, Pasco (Peru). - Barreto-Pio, Carmen; Bravo-Toledo, Luigi; Virú-Vásquez, Paul; Borda-Contreras, Ana; Zarate-Sarapura, Edgar; Pilco, Alex (Environmental Research, Engineering & Management / Aplinkos Tyrimai, Inžinerija ir Vadyba, 2023)