EN 551:Environmental Chemistry of Soils and Natural Surfaces
Soil is a mixture of inorganic and organic solids, air, water, and microorganisms. Soil affects the environmental chemistry through the interactions at solution-solid and air-solid interfaces, and the soil in turn is affected by the environmental and human activities. Soil science is not only important to agriculture, but also to diverse fields, such as environmental engineering, biogeochemistry, and hydrology. This course will enable students to understand the chemical properties of soil, soil minerals, natural surfaces, and mechanisms regulating solute chemistry in soil solutions. The fate and transport of inorganic and organic pollutants in soil and soil remediation technologies are discussed. One year of introductory chemistry is required for students who want to take this course.
EN 550:Environmental Chemistry of Atmospheric Processes
An introduction to the science underlying the description of atmospheric processes and air pollution control, including: composition of atmosphere; sources, transport, and fate of pollutants; chemical and photochemical reactions; properties of aerosols and effects of air pollution on climate and water; and adsorption, absorption, filtration, and chemical destruction pollutants in air pollution control systems.
Senior design courses. Complete design sequence with a required capstone project spanning two semesters. While the focus is on the capstone disciplinary design experience, it includes the two-credit core module on E 421 Engineering Economic Design during the first semester.
Senior design courses. Complete design sequence with a required capstone project spanning two semesters. While the focus is on the capstone disciplinary design experience, it includes the two-credit core module on E 421 Engineering Economic Design during the first semester.
An introduction to environmental engineering through laboratory experiments, including: principles of laboratory methods, including common instrumental methods of analysis; application of experimental results to the design of environmental treatment processes.
Schaefer School of Engineering & Science
Department:
Civil, Environmental and Ocean Engineering
Program:
Environmental Engineering / Nanotechnology
Research Center:
Center for Environmental Systems (CES)
Research & Education
Research
Research Interest:
Physicochemical treatment and of arsenic and heavy metals in water and solids.
Interaction of heavy metals, uranium and inorganic compounds at metal hydroxide-water interface.
Fate and transport of arsenic and heavy metals in aquatic environment.
Technologies Developed:
Development of a titanium-based adsorbent for treatment of arsenic and heavy metals from drinking water (patent pending). The adsorbent has been used successfully for the removal of arsenic and uranium in contaminated water
Development of household filtration units for removal of arsenic from well water in Bangladesh. An effective, simple, and inexpensive filtration process has been developed for treatment of arsenic in well water. Three arsenic free villages were established in Bangladesh to demonstrate Stevens filtration process. The Technical Advisory Group of Bangladesh Arsenic Mitigation Water Supply Project has recommended Stevens filtration process for nationwide use
Development of water treatment technologies for removal of heavy metals with metallic iron. A cost-effective water treatment technology using metallic iron filters has been developed (patent pending). A full-scale unit has been installed in Georgia for treatment of contaminated groundwater
Development of a direct coprecipitation filtration process. Full-scale units have been used successfully for arsenic removal from contaminated groundwater at environmental remediation sites in Texas and Washington since 1997
Current and Funded Projects:
Development of surface enhanced Raman spectroscopy (SERS) technique for rapid analysis of chemicals in water
Treatment of perchlorate in water and on exchange resins
Treatment of arsenic and chromium in contaminated water
Filtration testing of adsorptive media for removal of arsenic from groundwater
Field Pilot Filtration Testing for Removal of Arsenic from Groundwater
Naturally occurring heavy metal contaminant removal from groundwater
Development and demonstration of technologies for treatment of depleted uranium at Aberdeen Proving Grounds
Removal of arsenic by coprecipitation with ferric chloride
In-situ remediation of arsenic in groundwater by metallic iron
Study of selenocyanate interaction with metallic iron in aqueous solution
Evaluation of leaching tests of heavy metal contaminated soil matrices treated by solidification/stabilization technologies
Removal of heavy metals by metallic iron treatment and enhanced filtration
Removal of mercury, SO2, and NOx from flue gases by iron treatment
Stabilization/solidification of organic contaminated soil and sludge
Field pilot demonstration of enhanced sand filtration for heavy metal removal
Removal of heavy metals by adsorptive filtration
Inorganic removal treatability testing
Education
Ph.D. in Civil Engineering, August 1993, Syracuse University, Syracuse, NY
M.S. in Marine Chemistry, July 1985, Shandong College of Oceanography, China
B.S. in Chemistry, July 1982, Shandong College of Oceanography, China
Achievements & Professional Societies
Professional Societies
American Chemical Society
American Water Works Association
Chinese American Association for Engineering
Selected Publications
Journals
Han, M. J., Hao, J. M., Xu, Z. H., Meng, X. G.. (2011). "Silver nanostructure multilayer films for arsenate detection by surface-enhanced Raman scattering", Analytica Chimica Acta (in press).
Hao, J. M., Han, M. J., Xu, S. Y., Li, J. W., Meng, X. G.. (2011). "Fabrication and evolution of multilayer silver nanofilms for surface-enhanced Raman scattering sensing of arsenate", Nanoscale Research Letters (in press).
Baidas, S., Gao, B. Y., Meng, X. G.. (2011). "Perchlorate Removal by Quaternary Amine Modified Reed", J. Hazardous Materials (in press).
Hao, J. M., Xu, Z. H., Han, M. J., Xu, S. Y., Meng, X. G.. (2010). "Surface-enhanced Raman scattering analysis of perchlorate using silver nanofilms deposited on copper foils", Colloids and Surfaces A: Physicochemical and Engineering Aspects. 366 163-169.
Xu, Z. H., Jumin Hao, J. M., Li, F. S., Meng, X. G.. (2010). "Surface-enhanced Raman Spectroscopy of As(V) and As(III) Using Ag Nanofilm Prepared by Modified Mirror Reaction", J. Colloid Interface Science 347, 90-95.
Wang, C., Huang, Z. D., Lippincott, L., Meng, X. M. (2010). "Rapid Ti(III) reduction of perchlorate in the presence of -alanine: Kinetics, pH effect, complex formation, and -alanine effect", J. Hazardous Materials 175, 159-164.
Wang, C., Lippincott, L., Yoon, I. H., Meng, X. G. (2009) “Modeling, Rate-Limiting Step Investigation, and Enhancement of the Direct Bio-Regeneration of Perchlorate Laden Anion-Exchange Resin” Water Research 4 3, 1 2 7 – 1 3 6.
Krishnani, K., Meng, X. G., Dupont, L. (2009) “Metal Ions binding onto lignocellulosic biosorbent” J. Environ. Sci. Health, Part A, A44(7).
Hao, J. M., Han, M. J., Wang, C., Meng, X. G. (2009) “Enhanced removal of arsenite from water by a mesoporous hybrid material – thiol functionalized silica coated activated alumina” Microporous & Mesoporous Materials 124, 1-7.
Yoon, I. H., Meng, X. G., Wang, C., Bang, S. B., Choe, E. Y., Lippincott, L., Kim, K. W. (2009) “Perchlorate adsorption and desorption on activated carbon and anion exchange resin” J. Hazardous Materials 164, 87-94.
Hao, J., Han, M. J., Meng, X. G. (2009). "“Preparation and characterization of thiol-functionalized activated alumina for arsenite removal from water” J. Hazardous Materials 167, 1215-1221.".
Xu, Z. H., Meng, X. G. (2009). "Size effects of nanocrystalline TiO2 on As(V) and As(III) adsorption and As(III) photooxidation", J. Hazardous Materials 168, 747-752.
Wang, C., Lippincott, L., Meng, X. G. (2008) “Feasibility and kinetics study on the direct bio-regeneration of perchlorate laden anion-exchange resin” Water Research 42, 4619-4628.
Wang, C., Lippincott, L., Meng, X. G. (2008) “Kinetics of Biological Perchlorate Reduction and pH Effect” J. Hazardous Materials, 153, 663-669.
Xu, Z. H., Jing, C. Y., Li, F. S., Meng, X. G. (2008) “Mechanisms of Photocatalytical Degradation of Monomethylarsonic and Dimethylarsenic Acid using Nanocrystalline Titanium Dioxide" Environmental Science Technology, 42, 2349-2354.
Chin Choy, C., Wazne, M., Meng, X. G. (2008) “Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns” J. Hazardous Materials, 71, 1794-1801.
Jing, C. Y., Liu, S. Q., Meng, X. M. (2008) “Arsenic Remobilization in Water Treatment Adsorbents under Reducing Conditions: Part I. Incubation Study” Science Total Environment, 389, 188-194.
Krishnani, K., Meng, X. G., Christodoulatos, C., Buddu, V. M. (2008) “Biosorption Mechanisms of Nine Different Heavy Metals onto Biomatrix from Rice Husk” J. Hazardous Materials, 153, 1222-1234.
Wang, C., Lippincott, L., Meng, X. G. (2008) “Kinetics of Biological Perchlorate Reduction and pH Effect” J. Hazardous Materials, 153, 663-669.
Han, M. J., Hao, J. J., Christodoulatos, C., George P. Korfiatis, G. P., Wan, L. J. and Meng, X. G. (2007). "Direct Evidence of Arsenic(III)-Carbonate Complexes Obtained Using ECSTM", Analytical Chemistry. 79 3615-3622.
Han, M. J., Meng, X. G., Lippincott, L. (2007) “Determination of Configuration of Arsenite-Glutathione Complexes Using ECSTM” Toxicology Letters, 175, 57-63.
Pena, M. E., Meng, X. G., Korfiatis, G. P., Jing, C. Y. (2006). "Adsorption Mechanism of Arsenic on Nanocrystalline Titanium Dioxide", Environmental Science Technology. 40 1257-1262.
Chin Choy, C., Korfiatis, G. P., Meng, X. G. (2006). " Removal of Depleted Uranium from Contaminated Soils", J. Hazardous Materials. 136 53-60.
Krishnani, K., Parimala, V., Gupta, B. P., Azad, I. S., Meng, X. G., Abraham, M. (2006). "Bagasse-Assisted Bioremediation of Ammonia from Shrimp Farm Wastewater", Water Environmental Research. 78 938-950.
Jing, C. Y., Liu, S., Korfiatis, G. P., Meng, X. G. (2006). "Leaching Behavior of Cr(III) in Stabilized/Solidified Soil", Chemosphere. 64 379-385.
Wazne, M., Meng, X. G., Korfiatis, G. P., Christodoulatos, C. (2006). "Carbonate effects on hexavalent uranium removal from water by nanocrystalline titanium dioxide", J. Hazardous Materials. 136 47-52.
Report
Jing, C. Y., Meng, X. G., Liu, S., Baidas, S., Patraju, R., Christodoulatos, C., Korfiatis, G. K. (2005). "Surface Complexation of Organic Arsenic on Nanocrystalline Titanium Oxide", J. Colloid Interface Science
. 290 14-21.
Jing, C. Y., Liu, S. Q., Patel, M., Meng, X. G.. (2005). "Arsenic Leachability in Water Treatment Adsorbents", Environmental Science Technology
. 39 5481-5487.
Pena, M. E., Korfiatis, G. P., Patel, M., Lippincott, L. and Meng, X. G.. (2005). "Adsorption of As(V) and As(III) by Nanocrystalline Titanium Dioxide", Water Research
. 39 2327-2337.
Bang, S. B., Patel, M., Lippincott, L, Meng, X. G.. (2005). "Removal of Arsenic from Groundwater by Granular Titanium Dioxide Adsorbent", Chemosphere
. 60 389-397.
Bang, S. B., Korfiatis, G. P., Meng, X. G.. (2005). "Removal of Arsenic from Water by Zero-Valent Iron", J. Hazardous Materials
. 121 61-67.
Bang, S. B., Johnson, M. D., Korfiatis, G. P., Meng, X. G.. (2005). "Chemical Reactions between Arsenic and Zero-Valent Iron in Water", Water Research
. 39 763-770.
Jing, C. Y., Liu, S., Meng, X. G.. (2005). "Arsenic Leachability and Speciation in Cement Immobilized Water Treatment Sludge", Chemosphere
. 59 1241-1247.
Cheng, Z., van Geen, A, Jing, C. Y., Meng, X. G., Seddique, A., Ahmed, K. M.. (2004). "Performanceof a Household-Level Arsenic Removal System during 4-Month Developments in Bangladesh", Environmental Science Technology. 38 3442-3448.
Jing, C. Y., Meng, X. G., Korfiatis, G. P.. (2004). "Lead Leachability in Stabilized/Solidified Soil Samples Evaluated with Different Leaching Tests", J. Hazardous Materials
. 114 101-110.
Jing, C. Y., Korfiatis, G. P., Meng, X. G.. (2003). "Immobilization Mechanisms of Arsenate in Iron Hydroxide Sludge Stabilized with Cement", Environmental Science Technology. 37 5050-5056.
Wazne, M., Korfiatis, G. P., Meng, X. G.. (2003). "Carbonate Effects on Hexavalent Uranium Adsorption by Iron Oxyhydroxide", Environmental Science Technology. 37 3619-3624.
Meng, X. G., Korfiatis, G. P., Bang, S. B. and Bang, K. W.. (2002). "Combined Effects of Anions on Arsenic Removal by Iron Hydroxides", Toxicology Letters. 133 103-111.
Meng, X. G., Bang, S. B. and Korfiatis, G. P.. (2002). "Removal of Selenocyanate from Water Using Elemental Iron", Water Research. 36 3867-3873.
Meng, X. G., Korfiatis, G. P., Jing, C. Y., Christodoulatos, C.. (2001). "Redox Transformations of Arsenic and Iron in Water Treatment Sludge during Aging and TCLP Extraction", Environmental Science Technology. 35 3476-3481.
Meng, X. G., Korfiatis, G. P., Christodoulatos, C. and Bang, S. B.. (2001). "Treatment of Arsenic in Bangladesh Well Water Using a Household Co-precipitation and Filtration System", Water Research
. 35 2805-2710.
Meng, X. G., Bang, S. B. and Korfiatis, G. P.. (2000). "Effect of Silicate, Sulfate and Carbonate on Arsenic Removal by Ferric Hydroxide", Water Research
. 34 1255-1261.
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