HR job title
- Tees Researcher
- Contact Info
Den, Walter TEES Researcher at TAMU-San Antonio
Positions
- Professor, Department of Mathematical, Physical and Engineering Sciences, Texas A&M University – San Antonio - (San Antonio, Texas, United States)
- Director, Institute for Water Resources Science and Technology, Texas A&M University – San Antonio - (San Antonio, Texas, United States)
- TEES Researcher at TAMU-San Antonio, TEES Regional Divisions, Texas A&M Engineering Experiment Station (TEES)
- Overview
- Publications
- Background
- Contact
- Other
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Overview
Publications
selected publications
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academicarticle
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Thimons, S., Saxena, S., & Den, W.
(2022).
Ferrate-pretreated directional solvent extraction for hydraulic fracturing produced water: Technical and economic feasibility studies. Journal of Water Process Engineering.
49, 103053-103053.
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Abongwa, P. T., Den, W., & Teague, A.
(2022).
Dual Isotopic (O & N) Approach in the Assessment of NO3- Pollution in an Urban River. Water, Air, and Soil Pollution.
233(7), 280.
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Bilal, M., Sultan, M., Morosuk, T., Den, W., Sajjad, U., Aslam, M., Shahzad, M. W., & Farooq, M.
(2022).
Adsorption-based atmospheric water harvesting: A review of adsorbents and systems. International Communications in Heat and Mass Transfer.
133, 105961-105961.
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Abongwa, P. T., Den, W., & Teague, A.
(2022).
Chemical and Carbon Isotopic Characterization of a Karst-Dominated Urbanized Watershed: Case of the Upper San Antonio River. Archives of Environmental Contamination and Toxicology.
82(3), 439-454.
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Aslam, M., Den, W., & Kuo, H.
(2022).
Elucidating the mass transfer mechanism of Cr-VI adsorption by encapsulated chitosan-carbon nanotubes-iron beads in packed-bed columns. Journal of Water Process Engineering.
46, 102586-102586.
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Saxena, S., & Den, W.
(2022).
In situ treatment technologies for pit latrines to mitigate groundwater contamination by fecal pathogens: a review of recent technical advances. Journal of Water, Sanitation and Hygiene for Development.
12(1), 102-115.
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Aslam, M., Den, W., & Kuo, H.
(2021).
Removal of hexavalent chromium by encapsulated chitosan-modified magnetic carbon nanotubes: Fixed-bed column study and modelling. Journal of Water Process Engineering.
42, 102143-102143.
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Abongwa, P. T., & Den, W.
(2021).
Evolution of a Deep Fluid in a Surficial Environment Using Stable Carbon and Sulfur Isotopes: Case of the Transitional Zone of the Edwards Aquifer in South Central Texas. Water, Air, and Soil Pollution.
232(5), 213.
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Aslam, M., Den, W., & Kuo, H.
(2021).
Encapsulated chitosan-modified magnetic carbon nanotubes for aqueous-phase Cr-VI uptake. Journal of Water Process Engineering.
40, 101793-101793.
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Aslam, M., Kuo, H., Den, W., Usman, M., Sultan, M., & Ashraf, H.
(2021).
Functionalized Carbon Nanotubes (CNTs) for Water and Wastewater Treatment: Preparation to Application. Sustainability.
13(10), 5717-5717.
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Lee, M., Lin, Y., Chiueh, P., & Den, W.
(2020).
Environmental and energy assessment of biomass residues to biochar as fuel: A brief review with recommendations for future bioenergy systems. Journal of Cleaner Production.
251, 119714-119714.
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Den, W., Hu, S., Garza, C. M., & Zargar, O. A.
(2020).
Review-Airborne Molecular Contamination: Recent Developments in the Understanding and Minimization for Advanced Semiconductor Device Manufacturing. ECS Journal of Solid State Science and Technology.
9(6), 064003-064003.
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Chen, B., Kuo, H., Sharma, V. K., & Den, W.
(2019).
Chitosan Encapsulation of FerrateVI for Controlled Release to Water:Mechanistic Insights and Degradation of Organic Contaminant. Scientific Reports.
9(1), 18268.
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Yang, C., Chen, S., Chang, C., Den, W., & Wu, C.
(2019).
Implementation of an Environmental Quality and Harmful Gases Monitoring System in Cloud. Journal of Medical and Biological Engineering.
39(4), 456-469.
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Yang, C., Chen, S., Den, W., Wang, Y., & Kristiani, E.
(2019).
Implementation of an Intelligent Indoor Environmental Monitoring and management system in cloud. Future generations computer systems.
96, 731-749.
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Kanchanatip, E., Tulaphol, S., Den, W., Grisdanurak, N., Miao, H., & Yan, M. i.
(2019).
Sensing and adsorption study of gaseous phase chlorophenols on functionalized carbon nanotube membrane. Environmental Progress and Sustainable Energy.
38(s1), S315-S322.
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Chuang, J., Lien, H., Roche, A. K., Liao, P., & Den, W.
(2019).
Consolidated Climate Markets Mechanism Analysis-Case Studies of China, Japan, and Taiwan. Sustainability.
11(22), 6478-6478.
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Den, W., Chen, C., & Luo, Y.
(2018).
Revisiting the water-use efficiency performance for microelectronics manufacturing facilities: Using Taiwans Science Parks as a case study. Water-Energy Nexus.
1(2), 116-133.
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Chuang, J., Lien, H., Den, W., Iskandar, L., & Liao, P.
(2018).
The relationship between electricity emission factor and renewable energy certificate: The free rider and outsider effect. Sustainable Environment Research.
28(6), 422-429.
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Lu, B., Lee, M., Chen, S., Chen, C., Luo, Y., & Den, W.
(2018).
Strategic optimization of water reuse in wafer fabs via multi-constraint linear programming technique. Water-Energy Nexus.
1(1), 86-96.
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Den, W., Sharma, V. K., Lee, M., Nadadur, G., & Varma, R. S.
(2018).
Lignocellulosic Biomass Transformations via Greener Oxidative Pretreatment Processes: Access to Energy and Value-Added Chemicals. Frontiers in Chemistry.
6(APR), 141.
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Lee, M., Keller, A. A., Chiang, P., Den, W., Wang, H., Hou, C., ... Yan, J.
(2017).
Water-energy nexus for urban water systems: A comparative review on energy intensity and environmental impacts in relation to global water risks. APPLIED ENERGY.
205, 589-601.
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Chen, C., & Den, W.
(2017).
THE VALUE OF GREEN BELTS IN URBAN SPRAWL: A CASE STUDY OD TAICHUNG CITY, TAIWAN. International Journal of GEOMATE.
12(33), 147-+.
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Tu, T., Lee, M., Kuo, S., & Den, W.
(2016).
Citric acid-modified carbon chemical filtration for cleanroom air quality control: Study on N-methyl-2-pyrrolidone and the interference of co-existing toluene. Indoor and Built Environment.
25(5), 772-785.
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Kanchanatip, E., Su, B., Tulaphol, S., Den, W., Grisdanurak, N., & Kuo, C.
(2016).
Fouling characterization and control for harvesting microalgae Arthrospira (Spirulina) maxima using a submerged, disc-type ultrafiltration membrane. Bioresource Technology.
209, 23-30.
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Tulaphol, S., Bunsan, S., Kanchanatip, E., Miao, H., Grisdanurak, N., & Den, W.
(2016).
Influence of chlorine substitution on adsorption of gaseous chlorinated phenolics on multi-walled carbon nanotubes embedded in SiO2. International Journal of Environmental Science and Technology.
13(6), 1465-1474.
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Ma, C., Huang, S., Chou, P., Den, W., & Hou, C.
(2016).
Application of a multiwalled carbon nanotube-chitosan composite as an electrode in the electrosorption process for water purification. Chemosphere.
146, 113-120.
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Lee, M., & Den, W.
(2016).
Life cycle value analysis for sustainability evaluation of bioenergy products. Journal of Cleaner Production.
113, 541-547.
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Lee, H., Lee, M., & Den, W.
(2015).
Spirulina maxima for Phenol Removal: Study on its Tolerance, Biodegradability and Phenol-Carbon Assimilability. Water, Air, and Soil Pollution.
226(12), 395.
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Hou, C., Huang, S., Chou, P., & Den, W.
(2015).
Removal of bisphenol A from aqueous solutions by electrochemical polymerization on a carbon aerogel electrode. Journal of the Taiwan Institute of Chemical Engineers.
51, 103-108.
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Lee, M., Chen, B., & Den, W.
(2015).
Chitosan as a Natural Polymer for Heterogeneous Catalysts Support: A Short Review on Its Applications. Applied Sciences (Switzerland).
5(4), 1272-1283.
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Lin, W., Lee, M., Huang, Y., & Den, W.
(2015).
Identifying water recycling strategy using multivariate statistical analysis for high-tech industries in Taiwan. Resources, Conservation and Recycling.
94, 35-42.
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Su, Y., Lin, W., Hou, C., & Den, W.
(2014).
Performance of integrated membrane filtration and electrodialysis processes for copper recovery from wafer polishing wastewater. Journal of Water Process Engineering.
4, 149-158.
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Chang, P., Yang, J., Den, W., & Wu, C.
(2014).
Characterizing and locating air pollution sources in a complex industrial district using optical remote sensing technology and multivariate statistical modeling. Environmental Science and Pollution Research.
21(18), 10852-10866.
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Hou, C., Liu, N., Hsu, H., & Den, W.
(2014).
Development of multi-walled carbon nanotube/poly(vinyl alcohol) composite as electrode for capacitive deionization. Separation and Purification Technology.
130, 7-14.
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Yang, C., Liao, C., Liu, J., Den, W., Chou, Y., & Tsai, J.
(2014).
Construction and application of an intelligent air quality monitoring system for healthcare environment. Journal of Medical Systems.
38(2), 15.
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Cheng, W., Lai, L., Den, W., Wu, M., Hsueh, C., Lin, P., Pai, C., & Yan, Y.
(2014).
The relationship between typhoons' peripheral circulation and ground-level ozone concentrations in central Taiwan. Environmental Monitoring and Assessment.
186(2), 791-804.
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Chang, W., Lee, M., & Den, W.
(2013).
Simultaneous Carbon Capture, Biomass Production, and Diary Wastewater Purification by Spirulina maxima Photobioreaction. Industrial & Engineering Chemistry Research.
52(5), 2046-2055.
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Huang, P., Shi, Z., Chen, C., Den, W., Huang, H., & Tsai, J.
(2013).
Airborne and Surface-Bound Microbial Contamination in Two Intensive Care Units of a Medical Center in Central Taiwan. Aerosol and Air Quality Research.
13(3), 1060-1069.
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Cheng, W., Lai, L., Den, W., Wang, S., Lin, P., & Pai, C.
(2012).
An analytical investigation of a sequence of unusual springtime ozone episodes over metropolitan Taichung in 2007. Meteorology and Atmospheric Physics.
117(3-4), 153-166.
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Den, W., & Wang, C.
(2012).
Enhancement of adsorptive chemical filters via titania photocatalysts to remove vapor-phase toluene and isopropanol. Separation and Purification Technology.
85, 101-111.
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Shiue, A., Den, W., Kang, Y., Hu, S., Jou, G., Lin, C. H., Hu, V., & Lin, S. I.
(2011).
Validation and application of adsorption breakthrough models for the chemical filters used in the make-up air unit (MAU) of a cleanroom. BUILDING AND ENVIRONMENT.
46(2), 468-477.
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Shiue, A., Tien, D., Den, W., Hu, S., & Hsu, C.
(2010).
Deposition and electrostatic removal of gaseous organic contaminants on substrate surfaces. Applied Surface Science.
256(20), 6113-6116.
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Liu, H., Den, W., Chan, S., & Kin, K. T.
(2008).
Analysis of trace contamination of phthalate esters in ultrapure water using a modified solid-phase extraction procedure and automated thermal desorption-gas chromatography/mass spectrometry. Journal of Chromatography A.
1188(2), 286-294.
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Den, W., & Wang, C.
(2008).
Removal of silica from brackish water by electrocoagulation pretreatment to prevent fouling of reverse osmosis membranes. Separation and Purification Technology.
59(3), 318-325.
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Chen, C., Bai, H., Chang, S., Chang, C., & Den, W.
(2007).
Preparation of N-doped TiO2 photocatalyst by atmospheric pressure plasma process for VOCs decomposition under UV and visible light sources. Journal of Nanoparticle Research.
9(3), 365-375.
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Den, W., & Huang, C.
(2006).
Electrocoagulation of silica nanoparticles in wafer polishing wastewater by a multichannel flow reactor: A kinetic study. Journal of Environmental Engineering, ASCE.
132(12), 1651-1658.
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Den, W., Ravindran, V., & Pirbazari, M.
(2006).
Photooxidation and biotrickling filtration for controlling industrial emissions of trichloroethylene and perchloroethylene. Chemical Engineering Science (CES).
61(24), 7909-7923.
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Den, W., Huang, C. P., & Ke, H. C.
(2006).
Mechanistic study on the continuous flow electrocoagulation of silica nanoparticles from polishing wastewater. Industrial & Engineering Chemistry Research.
45(10), 3644-3651.
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Kang, Y. H., Den, W., & Bai, H. L.
(2006).
Short time deposition kinetics of diethyl phthalate and dibutyl phthalate on a silicon wafer surface. Industrial & Engineering Chemistry Research.
45(4), 1331-1336.
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Den, W., Liu, H., Chan, S., Kin, K. T., & Huang, C.
(2006).
Adsorption of Phthalate Esters with Multiwalled Carbon Nanotubes and Its Applications. 16(4), 275-282.
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Den, W., Bai, H. L., & Kang, Y. H.
(2006).
Organic airborne molecular contamination in semiconductor fabrication clean rooms - A review. Journal of the Electrochemical Society.
153(2), G149-G159.
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Kang, Y., Den, W., Bai, H., & Ko, F.
(2005).
Surface Deposition of Diethyl Phthalate on SiO2 and Si3N4 Wafers in Simulated Cleanroom Environment. 48(1), 21-32.
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Kang, Y., Den, W., Bai, H., & Ko, F.
(2005).
Direct quantitative analysis of phthalate esters as micro-contaminants in cleanroom air and wafer surfaces by auto-thermal desorption--gas chromatography--mass spectrometry. Journal of Chromatography A.
1070(1-2), 137-145.
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Den, W., & Huang, C. P.
(2005).
Electrocoagulation for removal of silica nano-particles from chemical-mechanical-planarization wastewater. Colloids and Surfaces A: Physicochemical and Engineering Aspects.
254(1-3), 81-89.
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Den, W., Huang, C., & Li, C.
(2004).
Effects of cross-substrate interaction on biotrickling filtration for the control of VOC emissions. Chemosphere.
57(7), 697-709.
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Bai, H. L., Chen, C. C., Lin, C. S., Den, W., & Chang, C. L.
(2004).
Monodisperse nanoparticle synthesis by an atmospheric pressure plasma process: An example of a visible light photocatalyst. Industrial & Engineering Chemistry Research.
43(22), 7200-7203.
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Badriyha, B. N., Ravindran, V., Den, W., & Pirbazari, M.
(2003).
Bioadsorber efficiency, design, and performance forecasting for alachlor removal. Water Research.
37(17), 4051-4072.
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Den, W., Huang, C. P., & Li, C. H.
(2003).
Biotrickling filtration for control of volatile organic compounds from microelectronics industry. Journal of Environmental Engineering, ASCE.
129(7), 610-619.
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Den, W., Ko, F. H., & Huang, T. Y.
(2002).
Treatment of organic wastewater discharged from semiconductor manufacturing process by ultraviolet/hydrogen peroxide and biodegradation. IEEE Transactions on Semiconductor Manufacturing.
15(4), 540-551.
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Den, W., & Pirbazari, M.
(2002).
Modeling and design of vapor-phase biofiltration for chlorinated volatile organic compounds. AIChE Journal.
48(9), 2084-2103.
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Tu, S. C., Ravindran, V., Den, W., & Pirbazari, M.
(2001).
Predictive membrane transport model for nanofiltration precesses in water treatment. AIChE Journal.
47(6), 1346-1362.
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Den, W., Pirbazari, M., Huang, C. C., & Shen, K. P.
(1998).
Technology Review for Biofiltration. Part I. Technological Development and Applications. SUSTAINABLE ENVIRONMENT RESEARCH.
8(3), 159-178.
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Den, W., Pirbazari, M., Huang, C. C., & Shen, K. P.
(1998).
Technology Review for Biofiltration. Part II. Biofilter Design and Operation. SUSTAINABLE ENVIRONMENT RESEARCH.
8(3), 181-195.
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McBrady, A. J., & Den, W.
Targeting Macrophytes: Optimizing Vegetation Density to Enhance Water Quality within Constructed Wetlands. Water (Switzerland).
16(16), 2278-2278.
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Thimons, S., Saxena, S., & Den, W.
(2022).
Ferrate-pretreated directional solvent extraction for hydraulic fracturing produced water: Technical and economic feasibility studies. Journal of Water Process Engineering.
49, 103053-103053.
-
book
-
chapter
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Aslam, M., Kuo, H., Den, W., Sultan, M., Rasool, K., & Bilal, M.
(2022).
Chapter 10 Recent trends of carbon nanotubes and chitosan composites for hexavalent chromium removal from aqueous samples. Separations of Water Pollutants with Nanotechnology.
(pp. 177-207).
Elsevier.
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Chen, J., Lee, M., & Den, W.
(2014).
Preparation of ZnO Photocatalyst by Plasma-Enhanced Vapor Deposition and Their Photocatalytic Activity. ACS Symposium Series.
Green Catalysts for Energy Transformation and Emission Control.
(pp. 111-120).
American Chemical Society (ACS).
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Lee, M., Jang, Y., Den, W., & Kuo, P.
(2014).
Synthesis of Fluorogenic Chemosensors for Hg 2+ Detection Using Naphthalimide Derivatives. ACS Symposium Series.
Green Catalysts for Energy Transformation and Emission Control.
(pp. 49-69).
American Chemical Society (ACS).
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Aslam, M., Kuo, H., Den, W., Sultan, M., Rasool, K., & Bilal, M.
(2022).
Chapter 10 Recent trends of carbon nanotubes and chitosan composites for hexavalent chromium removal from aqueous samples. Separations of Water Pollutants with Nanotechnology.
(pp. 177-207).
Elsevier.
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conference paper
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Lin, L., Den, W., Chou, Y., Yen, H., & Lu, C.
(2014).
A study on Developing the Indicators of Energy Conservation and Carbon Reduction for the Business. IEEE International Conference on Industrial Engineering and Engineering Management.
1491-1495.
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Den, W., Wang, C., & Yang, S.
(2010).
Preliminary Investigation of an Integrated Photobioreactor System for Microalgal CO2 Fixation. Chemical Engineering Transactions.
193-198.
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Den, W., & Huang, C.
(2006).
Parameter optimization and design aspect for electrocoagulation of silica nano-particles in wafer polishing wastewater. Water Science and Technology.
187-194.
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Lin, L., Den, W., Chou, Y., Yen, H., & Lu, C.
(2014).
A study on Developing the Indicators of Energy Conservation and Carbon Reduction for the Business. IEEE International Conference on Industrial Engineering and Engineering Management.
1491-1495.
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patent
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Hsiao, J., Yang, Y., & Den, W.
(2010).
Horizontal bioreactor
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Yang, Y., Yu, M., & Den, W.
(2010).
Carbon capture and storage system
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Hsiao, J., Yang, Y., & Den, W.
(2010).
Horizontal bioreactor
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Hsiao, J., Yang, Y., & Den, W.
(2010).
Horizontal bioreactor
editor of
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book
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Sultan, M., Den, W., & Zhou, Y.
(2022).
Sustainable Agricultural Engineering Technologies and Applications
Sultan, M., Den, W., Zhou, Y., & Sajjad, U. (Eds.),
MDPI AG.
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Sultan, M., Den, W., & Zhou, Y.
(2022).
Sustainable Agricultural Engineering Technologies and Applications
Sultan, M., Den, W., Zhou, Y., & Sajjad, U. (Eds.),
MDPI AG.
Background
education and training
- Ph.D. in Environmental Engineering, University of Southern California - (Los Angeles, California, United States) 2000
- M.S. in Civil Engineering, University of Southern California - (Los Angeles, California, United States) 1995
- B.S. in Mechanical Engineering, University of California, Santa Barbara - (Santa Barbara, California, United States) 1993
Contact
first name
- Walter
has last name
- Den
Other
- walter.den@tamusa.edu