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Now showing items 41-50 of 287
Treatability study of an intermittent biosand filter for reduction of Escherichia coli and Enterococcus
(2015)
According to the United Nations, although access to safe drinking water is improving worldwide, still over 1 billion people lack access to such. The intermittent biosand filter (IBSF), which is an adaptation of a slow sand ...
Degradation of caffeine in coffee pulp by solid-state fermentation
(2015)
Coffee pulp is the most abundant solid waste in coffee processing plants. Its reutilization could be a challenge due to the presence of compounds such as caffeine. In the current study the solid-state fermentation was ...
Water quality performance of pervious concrete pavements
(2016-07)
Water is one of the most important resources for human needs and, in some countries, the lack of potable and drinking water is a serious issue. For this reason, new infrastructure that increases water conservation and ...
Immobilization of titanium dioxide in crushed recycled glass for atrazine photo-degradation
(2016)
The release of toxic chemicals, as herbicides from agricultural activities is causing contamination of surface water by runoffs action after precipitation. This research studied the degradation of atrazine (herbicide) by ...
Comportamiento de puentes típicos sujetos a explosiones causadas por ataques terroristas y determinación de su capacidad para soportar cargas después de la explosión
(2010-05)
En esta investigación se modelaron diferentes tipos de puentes, usados típicamente en los Estados Unidos y algunos puentes representativos de Irak, utilizando modelos de puentes de tramos cortos de hormigón reforzado, hasta ...
Test and validation of different methods for soil moisture estimation in Puerto Rico Soils
(2017-05)
Resources available to retrieve accurate SM measurements are very limited in Puerto Rico. The objective of this project was to validate and downscale the AMSR2 SM products over Puerto Rico. For the validation, the 25km ...
Diseño de redes estructuradas de transportación colectiva incorporando en forma explícita los beneficios al usuario
(2018-12-12)
Public transportation is considered one of the main structural elements of urban transportation due to the decided advantages it offers over other means of transportation considering the amount of public space it takes up. ...
Enhancement of reactive oxygen species production in nanoparticulate bimetallic zero-valent iron and dioxygen system
(2010)
An emerging remediation process involving nanoscale zero-valent iron (nZVI) and dioxygen (O2) has recently been demonstrated to chemically destroy a variety of organic species via oxidation. The degradation of these organic ...
Análisis del diseño geométrico detallado de una rotonda de carriles múltiples en Puerto Rico
(2011)
Highway designers and transportation officials in Puerto Rico are beginning to consider the design and installation of modern roundabouts as an alternative to traditional at-grade intersections. The modern roundabout has ...
Triggering mechanisms of a rainfall-induced residual soil slope failure
(2011)
This MS thesis entails an experimental and analytical study of a slope failure that occurred in the city of Mayagüez after a heavy storm on June, 2005. The slope failure case history is considered a representative event ...