TY - JOUR AU - Morales-Rojas, Eli AU - Caro, Sayda Karina García AU - Rascón, Jesús AU - Diaz, Edwin Adolfo AU - Marchena, José AU - Ramírez, Ítalo Maldonado AU - Acosta, Roberto Santa Cruz AU - Ferro, Pompeyo AU - Ticona, Euclides AU - Fernández, Edita AU - Juarez-Contreras, Lily AU - Balcazar-Zumaeta, Cesar AU - Añorga, Carlos Máximo Gonzales AU - Vallejos, Fredy Velayarce PY - 2026 TI - Wastewater Treatment Using Organic By-Products from Agroindustry: A Case Study in the District of Valera, Amazonas Region, Northern Peru JF - OnLine Journal of Biological Sciences VL - 26 IS - 2 DO - 10.3844/ojbsci.2026.26.02.040 UR - https://thescipub.com/abstract/ojbsci.2026.26.02.040 AB - This research evaluates the use of two types of coagulants based on organic by-products (orange and passion fruit) in wastewater (RA) treatment. The system was composed of glass tanks installed in parallel. The coagulants were elaborated and applied in aqueous solution and in powder form, and 7 physicochemical and microbiological parameters were also analyzed. Data analysis was performed using a Student's t-test to compare significant differences. The results indicate significant differences for Total Solids (TS), Chemical Oxygen Demand (COD) and Total Coliforms (TC). The highest efficiency was for pH 13.884 % with the application of orange powder coagulant. As well as for oils and fats 81.102 and 65.354 % for orange and passion fruit powder coagulants. Finally, it was concluded that the coagulants were efficient for some parameters and that these depend on the type of application; therefore, future projects should be promoted to evaluate the viability of using by-products from agroindustry for water treatment and to avoid environmental contamination by these wastes.