Publication:
Water quality assessment with aquatic non-structural blocks made of coal ash aggregates mortars

dc.contributor.advisor Hwang, Sangchul
dc.contributor.author Torres Echevarría, Perla M.
dc.contributor.college College of Engineering en_US
dc.contributor.committee Molina Bas, Omar I.
dc.contributor.committee Camacho Padrón, Beatriz I.
dc.contributor.department Department of Civil Engineering en_US
dc.contributor.representative Chansky, Ricia
dc.date.accessioned 2018-11-10T21:20:53Z
dc.date.available 2018-11-10T21:20:53Z
dc.date.issued 2012
dc.description.abstract A handful of biochemical processes occur in aquatic environments. One of the problems that are mostly encountered in such environments is caused by excess nutrient input and subsequent algal bloom. A series of studies were conducted to assess feasibility of aquatic structures to enhance water quality. In line with resource recovery efforts, the aquatic structures were made of coal combustion byproducts (CCBs) mixed with cement. Optimum portions of cement and CCBs were determined and tested in a lab-scale simulated aquatic environment for their potential role in enhancing water quality. Parameters of water quality were measured including pH, turbidity, conductivity, biological oxygen demand, suspended solids, alkalinity, nitrate, phosphate, ammonia and algal growth throughout a series of experiments. Experiments for nitrate, phosphate and nitrification effects were studied separately. Each experiment showed that the coal ash concrete structures enhanced the water quality by improving the aquatic environment for at least one of the parameter measured. en_US
dc.description.abstract Diversos procesos bioquímicos están propensos a ocurrir en ambientes acuáticos. Un problema que se enfrenta en estos ambientes es el exceso de nutrientes y el crecimiento de algas. Se realizaron experimentos para evaluar cuan factible era el uso de estructuras hechas con productos secundarios de carbón para mejorar la calidad de agua. Con la intención de maximizar su recuperación, las estructuras fueron hechas de subproductos de la quema de carbón mezclados con cemento. Se determinó una mezcla óptima y se hizo una serie de experimentos a escala para determinar su beneficio. Varios parámetros fueron monitoreados con esta intención incluyendo pH, turbidez, conductividad, demanda de oxígeno biológico, solidos suspendidos, alcalinidad, nitratos, fosfatos, amonio y el crecimiento de algas en los experimentos. Experimentos para nitratos, fosfatos y amonio fueron realizados para entender mejor el efecto de las estructuras. Cada experimento demostró que las estructuras mejoraron la calidad del agua en al menos uno de los parámetros monitoreados. en_US
dc.description.graduationSemester Spring en_US
dc.description.graduationYear 2012 en_US
dc.identifier.uri https://hdl.handle.net/20.500.11801/1193
dc.language.iso en en_US
dc.rights.holder (c) 2012 Perla Marie Torres Echevarría en_US
dc.rights.license All rights reserved en_US
dc.subject Water quality en_US
dc.subject.lcsh Water quality--Measurement en_US
dc.subject.lcsh Coal ash en_US
dc.title Water quality assessment with aquatic non-structural blocks made of coal ash aggregates mortars en_US
dc.type Project Report en_US
dspace.entity.type Publication
thesis.degree.discipline Civil Engineering en_US
thesis.degree.level M.E. en_US
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