Ciencia e Ingeniería en Alimentos y Biotecnología

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    Evaluación de la capacidad fitorremediadora de Eichhornia crassipes y Pistia stratiotes en efluentes secundarios de industrias textiles y de curtiembre de la Planta de Tratamiento de Aguas Residuales Puerto Arturo (EP-EMAPA-A)
    (Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Biotecnología, 2024-02) Buitrón Arellano, María de los Angeles; Flores Tapia, Nelly Esther
    The growing issue of water pollution due to industrial discharges has led to an urgent need to find effective solutions in wastewater treatment plants worldwide. This study aims to investigate the phytoremediation capacity of Eichhornia crassipes and Pistia stratiotes in wastewater from textile and tanning industries, contributing to the improvement of the treatment process at the Puerto Arturo Wastewater Treatment Plant (EP-EMAPA-A). Experiments were conducted using the plants individually and in combination. Subsequently, physicochemical analyses of the parameters were carried out over a period of 2 months, with samples taken every 7, 15, 30, and 60 days. Wastewater was then analyzed during the decontamination process using protocols established by Hanna and Hach, adapted from the Standard Methods for the Examination of Water and Wastewater. The results revealed that, individually, E. crassipes and P. stratiotes demonstrated notable abilities to remove contaminants, reaching optimal levels on the 30th day of the study. Specifically, E. crassipes excelled in the removal of turbidity, sulfates, and surfactants with percentages between 80 and 90 percent, while P. stratiotes proved effective in total suspended solids, total solids, COD, and BOD5, with percentages also ranging between 80 and 90 percent. The combination of both plants exhibited synergy only in color removal, with a percentage of 87,08 percent, although favorable results were not observed in other parameters.
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    Optimización del proceso de coagulación en el tratamiento de agua a partir de la adición de basificantes en la planta de tratamiento de agua potable Casigana de la EP-EMAPA-A
    (Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos. Carrera de Ingeniería Bioquímica, 2018-08) Yugcha Pérez, Adriana Soledad; Pérez Aldas, Lander Vinicio
    Adding basifying used in drinking water allows conditioning it for optimal treatment, mainly influencing physicochemical parameters such as turbidity, pH, total dissolved solids and alkalinity in the coagulation process. Therefore, different basifying agents such as sodium hydroxide, calcium hydroxide, sodium carbonate and calcium carbonate 5percent, taking as factors study the concentration of coagulant, as well as the added volume of base for an optimal removal of the turbidity. For which three water samples used with high turbidity from the Huachi-Pelileo channel captured in the Casigana drinking water treatment plant of EP-EMAPA-A in the wet season. Jar test was used for the different treatments, the best basifying being calcium hydroxide (a1b2c1) with a removal of 99.4 percent of turbidity, allowing the reduction of at least 20 mg por every L of coagulant and according to the norm INEN NTE 1108: 2014 the parameters evaluated are within compliance with the permissible limits used for drinking water.
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    Aprovechamiento del sulfato de aluminio extraído a partir de los lodos generados en la planta de potabilización de agua Casigana de la EP-EMAPA-A, para la clarificación de agua
    (Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos. Carrera de Ingeniería Bioquímica, 2017-07) Díaz Muñoz, David Alejandro; Córdova Suárez, Manolo Alexander
    In this research the sludge’s from purification plant Casigana from Empresa Pública Empresa Municipal de Agua Potable y Alcantarillado de Ambato (EP-EMAPA-A) product of its processes was used for obtaining aluminum sulphate as coagulant. The acidification method with sulfuric acid extracted aluminum sulphate type b with physicochemical characteristics suitable for its clarification of water (color removal and turbidity). The aluminum sulphate was obtained by a reaction of the sulfuric acid with aluminum hydroxide (compound present in the sludge) in which the following factors were evaluated; pH of the reaction is carried and the reaction time under agitation, the experimental response was the concentration of aluminum in mg * L-1 obtained in the supernatant. These factors were analyzed by an experimental design of blocks totally random. Resulting in a pH of 1.5 for 30 minutes of reaction; Allowed a recovery of 72.2% of aluminum as aluminum sulfate type b, ensuring its effectiveness as a coagulant according to standards NTE 1903 and NTC: 531 para productos químicos. Sulfato de Aluminio national norm and Colombian norm referenced in Ecuador. The efficacy and dose of the coagulant was evaluated in a jar tests, collecting water samples from the effluent treated by the Casigana treatment plant, evaluating the color and residual turbidity to comply with the NTE 108: 2011 standard.
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    Desarrollo del proceso de desinfección para agua embotellada a base de Ozono (O3) en la Planta de Tratamiento de Agua Envasada de la Empresa Pública - Empresa Municipal de Agua Potable y Alcantarillado de Ambato (EP - EMAPA -A)
    (Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos. Carrera de Ingeniería Bioquímica, 2017-04) Gavilanes López, Jonathan Vinicio; Córdova Suárez, Manolo Alexander
    Ecuador is one of the latin american countries with high levels of consumption for bottle water. The Ecuadorian Technical Norm NTE INEN 2 200:2008 establishes the physicochemical and microbiological parameters requested for water to be bottled up, focusing mainly in safeguard the integrity of users who consume this generalized product worldwide. This investigation was done seeing the need of Empresa Publica- Empresa Municipal de Agua Potable y Alcantarillado de Ambato (EP-EMAPA-A), for implementing an efficient disinfection process for bottled water, for this reason Ozone (O3) was chosen between the most effective, considering it`s high microbicidal power, short contact times and minimum quantities of by- products formed. Considering these criteria, it was determined that the optimum dose of ozone in water to be bottled is 0,15 mgO3/L (Dosage Scale: 1,75 g/h), maintaining a residual ozone concentration equivalent to 0,08 mgO3/L and 0,07 mg/L as demand for ozone required to disinfect water. These established concentrations are supported by previous physicochemical, microbiological and sensorial analyzes carried out to verify the quality and guarantee of the water that will be provided to the local community as an additional service by EP-EMAPA-A.