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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 ...
Sand filtration and chlorination for removal and inactivation of Bacillus subtilis
(2015)
Sustainable water treatment and technology need to be implemented for safe-drinking water. In Puerto Rico, some rural communities do not rely on the central systems operated by the water authority but have their own small ...
Optimization of pervious concrete incorporating coal fly ash, iron-oxide nanoparticles and water reducing admixtures and its application for the removal of nutrients and fecal coliforms
(2015-05)
Physicomechanical characteristics and durability of the cement pastes containing fly ash (FA) and iron-oxide nanoparticles (NI) showed that workability was reduced with the FA addition, although it was counterbalanced when ...
Impact assessment of the presence of engineered iron oxide nanoparticles on wastewater effluent disinfection
(2014)
A previous study indicated that ~8.7% wt. Fe of the initially dosed engineered iron oxide nanoparticles coated with surfactants (ENPFe-Surf), as contaminants, was present in the effluent from the lab-scale sequencing batch ...
Treatment train with tire crumb rubber and cyperus haspan: a new approach for remediation of explosives-containing water
(2014)
The objective of this work was to study the adsorption capacity of TNT and DNT by the use of tire crumb rubber (TCR) and the phytoremediation capacity of a native plant known as dwarf papyrus. Several batch and continuous-flow ...
Effect of engineering iron oxide nanoparticles on effluent water quality from biological wastewater treatment
(2013)
The production, use, and disposal of products containing nanoparticles may lead to their appearance in air, water, and soil, and subsequently in the human body. Because there is no existing regulation, large amounts of ...
Development of a decision support tool to ensure safe drinking water in non-PRASA communities in Puerto Rico
(2009)
One of the main goals of the Millennium Development Goals is to reduce by half the proportion of people without sustainable access to safe drinking water and basic sanitation. In 2007, 97% of the Puerto Rico’s population ...
Phyto-viability on restored land with coal ash aggregates as backfilling amendments
(2009)
One of the main concerns of people in today’s world is the protection of the environment. Unnecessary constructions, inadequate waste management, and heavy transportation are the main causes of the deterioration of what ...
Disinfection by-products occurrence and Escherichia Coliform removal in a point-of-entry cistern purification unit
(2012)
This research aims to develop and test a Point-of-Entry Cistern Purification Unit (POE-CPU) to guarantee water quality for household purposes, with an emphasis on turbidity, E. coli removal and minimal occurrence of ...
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 ...