@article{Chauca_Rosales_Muñoz_Banchón_2018, title={Finding Chemical Pathways Toward the Valorization of Automobile-Service-Station Wastes}, volume={3}, url={https://knepublishing.com/index.php/KnE-Engineering/article/view/1467}, DOI={10.18502/keg.v3i1.1467}, abstractNote={<p>Automobile-service-station wastes make for an acute environmental concern because they contain polyaromatic hydrocarbons, heavy metals, surfactants, and other harmful elements. An eco-friendly way to treat and take advantage of these wastes is embodied in the concept called "valorization". In the present work, valorization is described as a chemical process to remove solids from contaminated water and to stabilize oily sludge into a saponified product. Electrocoagulation and coagulation with aluminum were applied to separate oil-water emulsions and removed 99.7% of turbidity. Both coagulation processes obtained approximately 0.85 kg of treated water and 0.027 kg of dried oily sludge per kg of wastewater. A saponification process with dosages of 10% NaOH stabilized the dried oily sludge. In hopes of finding pathways to valorize wastes, chemical treatments with aluminum and NaOH obtained a product that can be used as a surfactant or as an energy source.</p><p><strong>Keywords: </strong>sludge, electrocoagulation, saponification, oil, wastewater </p&gt;}, number={2}, journal={KnE Engineering}, author={Chauca, Janina and Rosales, María and Muñoz, Diego and Banchón, Carlos}, year={2018}, month={Feb.}, pages={636-644} }