Malynda A. Cappelle

Malynda A. Cappelle
University of Texas at El Paso | UTEP · Center for Inland Desalination Systems

PhD, MSc, MBA, BS

About

25
Publications
4,126
Reads
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160
Citations
Citations since 2017
1 Research Item
82 Citations
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201720182019202020212022202305101520
201720182019202020212022202305101520
Education
December 2014 - May 2018
University of Texas at El Paso
Field of study
  • Civil Engineering

Publications

Publications (25)
Chapter
Water softening is typically performed by contacting hard water with cation exchange beads that are originally in the sodium ion form. When the ion exchange capacity of the beads is exhausted, they are regenerated by soaking them with a concentrated solution of NaCl, a cyclic and rather inefficient process that contributes considerable salt to the...
Conference Paper
Zero Discharge Desalination (ZDD) technology is able to achieve up to 98% recovery by desalinating brackish groundwater. ZDD is typically comprised of a reverse osmosis (RO) or nanofiltration (NF) system and a unique variation of electrodialysis called electrodialysis metathesis (EDM). The ZDD technology increases the yield of fresh water from wate...
Article
UTEP and Veolia Water Solutions & Technologies have been demonstrating and commercializing the Zero Discharge Desalination (ZDD) technology as part of a three year project sponsored by the U.S. Bureau of Reclamation. ZDD is able to achieve up to 98% recovery by desalinating brackish groundwater. ZDD is typically comprised of a reverse osmosis (RO)...
Conference Paper
ZDD (Zero Discharge Desalination) is a technology that was developed with research funding from the Bureau of Reclamation and is being commercialized by Veolia with the support of the University of Texas at El Paso. The ZDD technology is directed to reduction in the volume of concentrate produced in the desalination of groundwater that contains spa...
Conference Paper
Zero Discharge Desalination (ZDD) technology utilizes electrodialysis metathesis (EDM) to remove troublesome ions from membrane desalination concentrate so that the solution can be further processed to increase the yield of fresh water from brackish groundwater that is difficult to treat by RO or NF alone. ZDD technology is particularly applicable...
Conference Paper
Electrodialysis metathesis (EDM) is a component in the zero discharge desalination (ZDD) process that maximizes water production and salt recovery from desalination. In the EDM process the concentrated effluent from reverse osmosis (RO) or nanofiltration (NF) is treated to recover minerals, such as gypsum and magnesium chloride, as well as addition...
Article
Research involving management of carbon dioxide has increased markedly over the last decade as it relates to concerns over climate change. Capturing and storing carbon dioxide (CO2) in geological formations is one of many proposed methods to manage, and likely reduce, CO2 emissions from burning fossil fuels in the electricity sector. Saline formati...
Article
A pilot study was conducted to determine whether membrane treatment on a side stream of recirculating cooling tower water could reduce overall water usage and discharge. The treated permeate was returned to the cooling tower while the concentrate was discharged to the sanitary sewer. Flow rates, pressures and water chemistry were monitored. The pil...
Chapter
The CARVER acronym represents the steps in a threat analysis exercise: Criticality, Accessibility, Recognizability, Vulnerability, Effect, and Recuperability. The CARVER+Shock software was developed as an easy-to-use tool for defending food production against malevolent attacks. Shock is added to incorporate the intangible focus of a terrorist in f...
Article
Full-text available
A methodology was developed to test the feasibility of linking coal-fired power plants, deep saline aquifers for carbon sequestration, and produced water treatment technologies for use as cooling water. A case study examines the San Juan Generating Station (SJGS) with the Morrison Formation Aquifer in the San Juan Basin in Northwest New Mexico. The...
Article
As a member of the Arsenic Water Technology Partnership, Sandia National Laboratories has carried out field scale pilot tests to obtain performance data on arsenic removal for eight different adsorptive media. The media include 3 iron oxyhydroxides, two titanium oxides, a zirconium oxide, and 2 resins with active metal oxide surfaces or nanoparticl...
Article
Full-text available
Sandia National Laboratories (SNL) is conducting pilot scale evaluations of the performance and cost of innovative drinking water treatment technologies designed to meet the new arsenic maximum contaminant level (MCL) of 10 {micro}g/L (effective January 2006). As currently envisioned, pilots tests may include multiple phases. Phase I tests will inv...
Article
Full-text available
This report summarizes the experimental and modeling effort undertaken to understand solute mixing in a water distribution network conducted during the last year of a 3-year project. The experimental effort involves measurement of extent of mixing within different configurations of pipe networks, measurement of dynamic mixing in a single mixing tan...
Article
Full-text available
Sandia National Laboratories (SNL) is conducting pilot scale evaluations of the performance and cost of innovative water treatment technologies aimed at meeting the recently revised arsenic maximum contaminant level (MCL) for drinking water. The standard of 10 g/L (10 ppb) is effective as of January 2006. The pilot tests have been conducted in New...
Article
Nanofiltration (NF) can effectively treat cooling-tower water to reduce water consumption and maximize water usage efficiency of thermoelectric power plants. A pilot is being run to verify theoretical calculations. A side stream of water from a 900 gpm cooling tower is being treated by NF with the permeate returning to the cooling tower and the con...

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