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- W3204670088 abstract "This study aimed to carry out a biological treatment of the wastewater of plants that process quinoa and check whether they complied with the current environmental quality standard for the wastewater discharge since this type of water generates highly polluting effluents. For this, an initial characterization of the discarded water was carried out and the following parameters that are not in line with the current regulations for its discharge were determined: oils and fats (9 mg/L), real color (3520 units of Pt/Co), settable solids (13,500 mg / L), total suspended solids (1195 mg/L), total solids (4644 mg/L), total nitrogen (250 mg/L), COD (5000 mg/L), BOD5 (2990 mg/L), surfactants (17.5 mg/L) and fecal coliforms (240 CFU/100 ml). Next, the biodegradability index was calculated with which the possibility of executing the said treatment to the waste water was corroborated; for this, a primary settler, an aeration tank with diffusers as a biological reactor, at the laboratory level, a secondary settler and finally an anthracite and sand filter were used. This way, we were able to obtain treated water that complied with the current legislation for the discharge of effluents to a body of fresh water with a pollutant removal percentage of 97%. In this study, we provide guideline for the recirculation of water in a similar manner for other relevant purposes.
 Keywords: Chemical engineering, Biological treatment, Quinoa washing, Biodegradability index, Contaminating parameters.
 Resumen
 El presente estudio tuvo como objetivo realizar un tratamiento biológico al agua residual de plantas que procesan quinua y que éstas cumplan con la norma de calidad ambiental vigente para su descarga puesto que este tipo de aguas generan efluentes altamente contaminantes; para ello se ejecutó una caracterización inicial del agua que se desechaba en este tipo de industrias y así se determinó los parámetros que no cumplen con la normativa vigente para su descarga, siendo éstos: aceites y grasas (9 mg/L), color real (3520 Unds de Pt/Co), sólidos sedimentables (13.500 mg/L), sólidos suspendidos totales (1195 mg/L), sólidos totales (4644 mg/L), nitrógeno total (250 mg/L), DQO (5000 mg/L), DBO5 (2990 mg/L), tensoactivos (17,5 mg/L) y coliformes fecales (240 UFC/100 ml); una vez analizados dichos parámetros se procedió a calcular el índice de biodegradabilidad con el cual se corroboró la posibilidad de ejecutar dicho tratamiento al agua residual, para ello se utilizó a nivel de laboratorio un sedimentador primario, un tanque de aireación con difusores como reactor biológico, un sedimentador secundario y por último un filtro de antracita y arena; de esta manera se logró obtener un agua tratada que cumple con la legislación actual para la descarga de efluentes a un cuerpo de agua dulce con un porcentaje de remoción de contaminantes del 97% y dando la pauta para que incluso el agua pueda ser recirculada en el mismo proceso o reutilizada para otro fin pertinente.
 Palabras Clave: Ingeniería química, tratamiento biológico, lavado de quinua, índice de biodegradabilidad, parámetros contaminantes.
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- W3204670088 date "2021-08-29" @default.
- W3204670088 modified "2023-09-27" @default.
- W3204670088 title "Biological Water Treatment Residuals from Plants Quinoa Processors" @default.
- W3204670088 cites W2159920282 @default.
- W3204670088 doi "https://doi.org/10.18502/espoch.v1i3.9535" @default.
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