Innovation in high Andean lagoon remediation: Development and evaluation of a solid waste collection bin with a nanobubble system in Pucush Uclo, Peru

• Autores: Salas Vidalon, Candy Paola, Remigio Roncal, Roxana, Ramos Chambergo, Winniver Steffi, Camargo Hinostroza, Steve Dann
• Formato: tesis de grado
• Fecha de Publicación: 2025
• Institución: Universidad Continental
• Repositorio: CONTINENTAL-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.continental.edu.pe:20.500.12394/19495
• Enlace del recurso: https://hdl.handle.net/20.500.12394/19495; https://doi.org/10.1051/e3sconf/202564703001
• Nivel de acceso: acceso abierto
• Materia: Sistema Venturi; Reducción; Calidad del agua; Water pollution; Reduction; Venturi system; Water quality; https://purl.org/pe-repo/ocde/ford#2.07.00

This study developed and evaluated an innovative Solid Waste Collection System integrating Venturi nanobubble technology, implemented in Pucush Uclo Lagoon (Peru, 3,232 masl). Through a 16 - week quasi - experimental design comparing conventional (A) and nanobubble - enhanced (B) configurations, the Venturi system generated highly stable nanobubbles (178 ± 23 nm diameter, 1.4 × 10⁸ bubbles/mL, - 32.7 mV zeta potential). Key findings revealed that configuration B achieved significantly superior collection efficiency (94.2% vs 76.8%), with exceptional performance for small waste (<5 cm) showing 37.2% relative improvement. The system simultaneously enhanced water quality through 46.3% dissolved oxygen increase (5.4 to 7.9 mg/L) and substantial pollutant reductions: 53.9% BOD₅, 37.9% COD, 64.3% total suspended solids, and 61.6% turbidity. Strong correlations were identified between nanobubble concentration and dissolved oxygen (r=0.89) and between oxygen levels and BOD reduction (r= - 0.85). Economic analysis demonstrated operational cost - effectiveness at $0.045 USD/m², representing 60% savings compared to conventional methods. This dual - approach system validates an innovative paradigm combining physical waste collection with biochemical water enhancement through targeted oxygenation. The technology offers a scalable, cost - effective solution particularly suitable for high - altitude aquatic ecosystems with limited self - purification capacity. Results demonstrate that nanobubble integration significantly enhances collection efficiency while simultaneously addressing water quality degradation, providing a comprehensive remediation strategy for contaminated water bodies in challenging environmental conditions.