Dr Shikha Garg

Senior Research Associate in the School of Civil and Environmental Engineering

Dr Shikha Garg is a Senior Research Associate in the School of Civil and Environmental Engineering. Her research interests include:

Photochemistry in aquatic systems
Fate and transformation of contaminants
Free radical chemistry
Advanced oxidation processes
Biogeochemical processes and kinetics

Phone

(+61 2) 9385 6362

E-mail

s.garg@unsw.edu.au

Location

Vallentine Annexe (H22) Level 1, Room VA133B Kensington Campus

Book Chapters | 2012

Garg S; Rose AL; Waite TD, 2012, 'Pathways Contributing to the Formation and Decay of Ferrous Iron in Sunlit Natural Waters', in Tratnyek PG; Grundl TJ; Haderlein SB (ed.), Aquatic Redox Chemistry, American Chemical Society, Washington, DC, pp. 153 - 176, http://dx.doi.org/10.1021/bk-2011-1071.ch008
Journal articles | 2023

Kong X; Garg S; Chen G; Waite TD, 2023, 'Investigation of the deactivation and regeneration of an Fe2O3/Al2O3•SiO2 catalyst used in catalytic ozonation of coal chemical industry wastewater', Journal of Hazardous Materials, 451, http://dx.doi.org/10.1016/j.jhazmat.2023.131194

Journal articles | 2023

Lian B; Sun Y; Wang Y; Garg S; Zhang C; Chen Y; Tu Y; Waite TD, 2023, 'Investigation of the Effects of Anode Geometry on the Electrochemical Degradation of Ni-Ethylenediaminetetraacetic Acid Complexes Using Computational Fluid Dynamics Simulation', ACS ES and T Engineering, 3, pp. 201 - 212, http://dx.doi.org/10.1021/acsestengg.2c00278

Journal articles | 2023

Mortazavi M; Garg S; Waite TD, 2023, 'Kinetic Modeling-Assisted Optimization of the Peroxone (O3/H2O2) Water Treatment Process', Industrial and Engineering Chemistry Research, http://dx.doi.org/10.1021/acs.iecr.3c00020

Journal articles | 2023

Pan Y; Garg S; Ouyang Y; Yang X; Waite TD, 2023, 'Inhibition of photosensitized degradation of organic contaminants by copper under conditions typical of estuarine and coastal waters', Journal of Hazardous Materials, 458, http://dx.doi.org/10.1016/j.jhazmat.2023.131812

Journal articles | 2023

Sun J; Garg S; Waite TD, 2023, 'A Novel Integrated Flow-Electrode Capacitive Deionization and Flow Cathode System for Nitrate Removal and Ammonia Generation from Simulated Groundwater', Environmental Science and Technology, 57, pp. 14726 - 14736, http://dx.doi.org/10.1021/acs.est.3c03922

Journal articles | 2023

Sun Y; Garg S; Zhang C; Xie J; Waite TD, 2023, 'Approaches to Enhancing Cathodic Nickel Recovery from Ni-EDTA Containing Synthetic Wastewaters', ACS ES and T Water, 3, pp. 2415 - 2426, http://dx.doi.org/10.1021/acsestwater.3c00095

Journal articles | 2023

Wu L; Garg S; Xie J; Zhang C; Wang Y; Waite TD, 2023, 'Electrochemical Removal of Metal-Organic Complexes in Metal Plating Wastewater: A Comparative Study of Cu-EDTA and Ni-EDTA Removal Mechanisms', Environmental Science and Technology, 57, pp. 12476 - 12488, http://dx.doi.org/10.1021/acs.est.3c02550

Journal articles | 2022

Chen Y; Vu HC; Miller CJ; Garg S; Pan D; Waite TD, 2022, 'Comparative Experimental and Computational Studies of Hydroxyl and Sulfate Radical-Mediated Degradation of Simple and Complex Organic Substrates', Environmental Science and Technology, 56, pp. 8819 - 8832, http://dx.doi.org/10.1021/acs.est.2c00686

Journal articles | 2022

Garg S; Yuan Y; Mortazavi M; Waite TD, 2022, 'Caveats in the Use of Tertiary Butyl Alcohol as a Probe for Hydroxyl Radical Involvement in Conventional Ozonation and Catalytic Ozonation Processes', ACS ES and T Engineering, 2, pp. 1665 - 1676, http://dx.doi.org/10.1021/acsestengg.2c00059

Journal articles | 2022

Kong X; Garg S; Chen G; Li W; Wang Y; Wang J; Ma J; Yuan Y; Waite TD, 2022, 'Coal chemical industry membrane concentrates: characterisation and treatment by ozonation and catalytic ozonation processes', Environmental Chemistry, http://dx.doi.org/10.1071/en22042

Journal articles | 2022

Kong X; Garg S; Mortazavi M; Ma J; Waite TD, 2022, 'Heterogenous Iron Oxide Assemblages for Use in Catalytic Ozonation: Reactivity, Kinetics, and Reaction Mechanism', Environmental Science and Technology, http://dx.doi.org/10.1021/acs.est.2c07319

Journal articles | 2022

Lian B; Jiang Q; Garg S; Wang Y; Yuan Y; Waite TD, 2022, 'Analysis of Ozonation Processes Using Coupled Modeling of Fluid Dynamics, Mass Transfer, and Chemical Reaction Kinetics', Environmental Science and Technology, 56, pp. 4377 - 4385, http://dx.doi.org/10.1021/acs.est.1c07694

Journal articles | 2022

Song Z; Garg S; Ma J; Waite TD, 2022, 'Influence of cations on As(III) removal from simulated groundwaters by double potential step chronoamperometry (DPSC) employing polyvinylferrocene (PVF) functionalized electrodes', Journal of Hazardous Materials, 424, http://dx.doi.org/10.1016/j.jhazmat.2021.127472

Journal articles | 2022

Sun J; Garg S; Xie J; Zhang C; Waite TD, 2022, 'Electrochemical Reduction of Nitrate with Simultaneous Ammonia Recovery Using a Flow Cathode Reactor', Environmental Science and Technology, 56, pp. 17298 - 17309, http://dx.doi.org/10.1021/acs.est.2c06033

Journal articles | 2022

Sun Y; Garg S; Zhang C; Lian B; Waite TD, 2022, 'Kinetic Modeling of the Anodic Degradation of Ni-EDTA Complexes: Insights into the Reaction Mechanism and Products', ACS ES and T Engineering, http://dx.doi.org/10.1021/acsestengg.2c00356

Journal articles | 2022

Yuan Y; Garg S; Wang Y; Li W; Chen G; Gao M; Zhong J; Wang J; Waite TD, 2022, 'Influence of salinity on the heterogeneous catalytic ozonation process: Implications to treatment of high salinity wastewater', Journal of Hazardous Materials, 423, http://dx.doi.org/10.1016/j.jhazmat.2021.127255

Journal articles | 2022

Yuan Y; Mortazavi M; Garg S; Ma J; Waite TD, 2022, 'Comparison of Performance of Conventional Ozonation and Heterogeneous Catalytic Ozonation Processes in Phosphate- and Bicarbonate-Buffered Solutions', ACS ES and T Engineering, 2, pp. 210 - 221, http://dx.doi.org/10.1021/acsestengg.1c00350

Journal articles | 2021

Yuan Y; Garg S; Ma J; Waite TD, 2021, 'Kinetic Modeling-Assisted Mechanistic Understanding of the Catalytic Ozonation Process Using Cu-Al Layered Double Hydroxides and Copper Oxide Catalysts', Environmental Science and Technology, 55, pp. 13274 - 13285, http://dx.doi.org/10.1021/acs.est.1c03718

Journal articles | 2020

Garg S; Xing G; Waite TD, 2020, 'Influence of pH on the Kinetics and Mechanism of Photoreductive Dissolution of Amorphous Iron Oxyhydroxide in the Presence of Natural Organic Matter: Implications to Iron Bioavailability in Surface Waters', Environmental Science and Technology, 54, pp. 6771 - 6780, http://dx.doi.org/10.1021/acs.est.0c01257

Journal articles | 2020

Pan Y; Ruan X; Garg S; Waite TD; Lei Y; Yang X, 2020, 'Copper Inhibition of Triplet-Sensitized Phototransformation of Phenolic and Amine Contaminants', Environmental Science and Technology, 54, pp. 9980 - 9989, http://dx.doi.org/10.1021/acs.est.0c01693

Journal articles | 2020

Song Z; Garg S; Ma J; Waite TD, 2020, 'Selective Arsenic Removal from Groundwaters Using Redox-Active Polyvinylferrocene-Functionalized Electrodes: Role of Oxygen', Environmental Science and Technology, 54, pp. 12081 - 12091, http://dx.doi.org/10.1021/acs.est.0c03007

Journal articles | 2020

Xing G; Garg S; Miller CJ; Pham AN; Waite TD, 2020, 'Effect of Chloride and Suwannee River Fulvic Acid on Cu Speciation: Implications to Cu Redox Transformations in Simulated Natural Waters', Environmental Science and Technology, 54, pp. 2334 - 2343, http://dx.doi.org/10.1021/acs.est.9b06789

Journal articles | 2020

Yuan Y; Xing G; Garg S; Ma J; Kong X; Dai P; Waite TD, 2020, 'Mechanistic insights into the catalytic ozonation process using iron oxide-impregnated activated carbon', Water Research, 177, http://dx.doi.org/10.1016/j.watres.2020.115785

Journal articles | 2019

He D; Garg S; Wang Z; Li L; Rong H; Ma X; Li G; An T; Waite TD, 2019, 'Silver sulfide nanoparticles in aqueous environments: Formation, transformation and toxicity', Environmental Science: Nano, 6, pp. 1674 - 1687, http://dx.doi.org/10.1039/c9en00138g

Journal articles | 2019

Rong H; Garg S; Waite TD, 2019, 'Impact of light and Suwanee River Fulvic Acid on O2 and H2O2 Mediated Oxidation of Silver Nanoparticles in Simulated Natural Waters', Environmental Science and Technology, 53, pp. 6688 - 6698, http://dx.doi.org/10.1021/acs.est.8b07079

Journal articles | 2019

Song Z; Garg S; Ma J; Waite TD, 2019, 'Modified Double Potential Step Chronoamperometry (DPSC) Method for As(III) Electro-oxidation and Concomitant As(V) Adsorption from Groundwaters', Environmental Science and Technology, 53, pp. 9715 - 9724, http://dx.doi.org/10.1021/acs.est.9b01762

Journal articles | 2019

Xing G; Garg S; David Waite T, 2019, 'Is Superoxide-Mediated Fe(III) Reduction Important in Sunlit Surface Waters?', Environmental Science and Technology, 53, pp. 13179 - 13190, http://dx.doi.org/10.1021/acs.est.9b04718

Journal articles | 2018

Garg S; Jiang C; Waite TD, 2018, 'Impact of pH on Iron Redox Transformations in Simulated Freshwaters Containing Natural Organic Matter', Environmental Science and Technology, 52, pp. 13184 - 13194, http://dx.doi.org/10.1021/acs.est.8b03855

Journal articles | 2018

He C; He D; Collins RN; Garg S; Mu Y; Waite TD, 2018, 'Effects of Good's Buffers and pH on the Structural Transformation of Zero Valent Iron and the Oxidative Degradation of Contaminants', Environmental Science and Technology, 52, pp. 1393 - 1403, http://dx.doi.org/10.1021/acs.est.7b04030

Journal articles | 2018

Pan Y; Garg S; Waite TD; Yang X, 2018, 'Copper Inhibition of Triplet-Induced Reactions Involving Natural Organic Matter', Environmental Science and Technology, 52, pp. 2742 - 2750, http://dx.doi.org/10.1021/acs.est.7b05655

Journal articles | 2018

Rong H; Garg S; Waite TD, 2018, 'Transformation of AgCl Particles under Conditions Typical of Natural Waters: Implications for Oxidant Generation', Environmental Science and Technology, 52, pp. 11621 - 11631, http://dx.doi.org/10.1021/acs.est.8b02902

Journal articles | 2018

Rong H; Garg S; Westerhoff P; Waite TD, 2018, 'In vitro characterization of reactive oxygen species (ROS) generation by the commercially available Mesosilver™ dietary supplement', Environmental Science: Nano, 5, pp. 2686 - 2698, http://dx.doi.org/10.1039/c8en00701b

Journal articles | 2017

Garg S; Wang K; Waite TD, 2017, 'Impact of Microcystis aeruginosa Exudate on the Formation and Reactivity of Iron Oxide Particles Following Fe(II) and Fe(III) Addition', Environmental Science and Technology, 51, pp. 5500 - 5510, http://dx.doi.org/10.1021/acs.est.7b00660

Journal articles | 2017

Jiang C; Garg S; Waite TD, 2017, 'Iron Redox Transformations in the Presence of Natural Organic Matter: Effect of Calcium', Environmental Science and Technology, 51, pp. 10413 - 10422, http://dx.doi.org/10.1021/acs.est.7b01944

Journal articles | 2017

Wang K; Garg S; Waite TD, 2017, 'Light-Mediated Reactive Oxygen Species Generation and Iron Redox Transformations in the Presence of Exudate from the Cyanobacterium Microcystis aeruginosa', Environmental Science and Technology, 51, pp. 8384 - 8395, http://dx.doi.org/10.1021/acs.est.7b01441

Journal articles | 2017

Wang K; Garg S; Waite TD, 2017, 'Redox Transformations of Iron in the Presence of Exudate from the Cyanobacterium Microcystis aeruginosa under Conditions Typical of Natural Waters', Environmental Science and Technology, 51, pp. 3287 - 3297, http://dx.doi.org/10.1021/acs.est.7b00396

Journal articles | 2016

Garg S; Rong H; Miller CJ; Waite TD, 2016, 'Chlorine-Mediated Regeneration of Semiconducting AgCl(s) Following Light-Induced Ag⁰ Formation: Implications to Contaminant Degradation', Journal of Physical Chemistry C, 120, pp. 5988 - 5996, http://dx.doi.org/10.1021/acs.jpcc.5b11273

Journal articles | 2016

Garg S; Rong H; Miller CJ; Waite TD, 2016, 'Oxidative Dissolution of Silver Nanoparticles by Chlorine: Implications to Silver Nanoparticle Fate and Toxicity', Environmental Science and Technology, 50, pp. 3890 - 3896, http://dx.doi.org/10.1021/acs.est.6b00037

Journal articles | 2015

Garg S; Jiang C; David Waite T, 2015, 'Mechanistic insights into iron redox transformations in the presence of natural organic matter: Impact of pH and light', Geochimica et Cosmochimica Acta, 165, pp. 14 - 34, http://dx.doi.org/10.1016/j.gca.2015.05.010

Journal articles | 2015

Jiang C; Garg S; Waite TD, 2015, 'Hydroquinone-Mediated Redox Cycling of Iron and Concomitant Oxidation of Hydroquinone in Oxic Waters under Acidic Conditions: Comparison with Iron-Natural Organic Matter Interactions', Environmental Science and Technology, 49, pp. 14076 - 14084, http://dx.doi.org/10.1021/acs.est.5b03189

Journal articles | 2015

Ma T; Garg S; Miller CJ; Waite TD, 2015, 'Contaminant degradation by irradiated semiconducting silver chloride particles: Kinetics and modelling', Journal of Colloid and Interface Science, 446, pp. 351 - 357, http://dx.doi.org/10.1016/j.jcis.2014.11.069

Journal articles | 2014

Garg S; Ma T; Miller CJ; Waite TD, 2014, 'Mechanistic insights into free chlorine and reactive oxygen species production on irradiation of semiconducting silver chloride particles', Journal of Physical Chemistry C, 118, pp. 26659 - 26670, http://dx.doi.org/10.1021/jp5068878

Journal articles | 2013

Garg S; Ito H; Rose AL; Waite TD, 2013, 'Mechanism and kinetics of dark iron redox transformations in previously photolyzed acidic natural organic matter solutions', Environmental Science and Technology, 47, pp. 1861 - 1869, http://dx.doi.org/10.1021/es3035889

Journal articles | 2013

Garg S; Jiang C; Miller CJ; Rose AL; Waite TD, 2013, 'Iron redox transformations in continuously photolyzed acidic solutions containing natural organic matter: Kinetic and mechanistic insights', Environmental Science and Technology, 47, pp. 9190 - 9197, http://dx.doi.org/10.1021/es401087q

Journal articles | 2011

Jones AM; Garg S; He D; Pham AN; Waite TD, 2011, 'Superoxide-Mediated Formation and Charging of Silver Nanoparticles', Environmental Science and Technology, 45, pp. 1428 - 1434, http://dx.doi.org/10.1021/es103757c

Journal articles | 2010

Waite TD; Garg S; Rose AL, 2010, 'Photochemical production of superoxide and hydrogen peroxide from natural organic matter', ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 239, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000208189302286&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Journal articles | 2007

Garg S; Rose AL; Godrant A; Waite TD, 2007, 'FUEL 50-Chemistry of single walled carbon nanotubes: Applications to biomolecule detection, nanotube separation, and electronic networks', ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 233, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000207722801859&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Journal articles | 2007

Garg S; Rose AL; Godrant A; Waite TD, 2007, 'Iron uptake by the ichthyotoxic Chattonella marina (Raphidophyceae): Impact of superoxide generation', Journal of Phycology, 43, pp. 978 - 991

Journal articles | 2007

Garg S; Rose AL; Waite TD, 2007, 'Production of reactive oxygen species on photolysis of dilute aqueous quinone solutions', Photochemistry and Photobiology, 83, pp. 904 - 913

Journal articles | 2007

Garg S; Rose AL; Waite TD, 2007, 'Superoxide mediated reduction of organically complexed iron(III): Comparison of non-dissociative and dissociative reduction pathways', Environmental Science and Technology, 41, pp. 3205 - 3212, http://dx.doi.org/10.1021/es0617892

Journal articles | 2007

Garg S; Rose AL; Waite TD, 2007, 'Superoxide-mediated reduction of organically complexed iron(III): Impact of pH and competing cations (Ca2+)', Geochimica et Cosmochimica ACTA, 71, pp. 5620 - 5634, http://dx.doi.org/10.1016/j.gca.2007.08.002

Journal articles | 2006

Garg S; Rose AL; Waite TD, 2006, 'GEOC 12-Superoxide mediated reduction of ferric-organic complexes at circumneutral pH', ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 232, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000207781605350&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Journal articles | 2006

Waite TD; Rose AL; Garg S; Fujii M, 2006, 'Superoxide-mediated reduction of ferric iron in natural aquatic systems', Geochimica et Cosmochimica ACTA, 70, pp. A681 - A681
Conference Papers | 2014

Garg S; Jiang C; Waite TD, 2014, 'Redox transformations of Fe in the presence of pre-photoloysed SRFA solutions', in ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, AMER CHEMICAL SOC, San Francisco, CA, presented at 248th National Meeting of the American-Chemical-Society (ACS), San Francisco, CA, 10 August 2014 - 14 August 2014, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000349167400129&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Conference Papers | 2014

Ma T; Garg S; Miller CJ; Waite TD, 2014, 'Photocatalytic degradation of contaminants by colloidal AgCl(s): Kinetic and mechanistic insights', in ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, AMER CHEMICAL SOC, San Francisco, CA, presented at 248th National Meeting of the American-Chemical-Society (ACS), San Francisco, CA, 10 August 2014 - 14 August 2014, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000349165103737&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Conference Papers | 2011

He D; Garg S; Jones AM; Waite TD, 2011, 'Silver nanoparticle - reactive oxygen species interactions: Application of an electron charging-discharging model', in ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, AMER CHEMICAL SOC, CO, Denver, presented at 242nd National Meeting of the American-Chemical-Society (ACS), CO, Denver, 28 August 2011 - 01 September 2011, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000299378302555&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Conference Papers | 2010

Jones AM; Waite TD; He D; Garg S; Pham AN, 2010, 'Production of Reactive Oxygen Species by Silver Nanoparticles - Implications for Bactericidal Activity', in Production of Reactive Oxygen Species by Silver Nanoparticles - Implications for Bactericidal Activity, AOTs-16: 16th International Conference on Advanced Oxidation Technologies for Water and Air Remediation, San Diego, Californa, USA, pp. 81 - 81, presented at AOTs-16: 16th International Conference on Advanced Oxidation Technologies for Water and Air Remediation, San Diego, Californa, USA, 15 November 2010 - 18 November 2010

Conference Papers | 2010

Waite TD; Jones AM; Garg S, 2010, 'Reactive oxygen species generation by elemental iron and silver nanoparticulates', in Geochimica et Cosmochimica ACTA, Pergamon-Elsevier Science Ltd, Kidlington, Oxford, England, pp. A1091 - A1091, presented at Goldschmidt, Knoxville, Tennessee, USA, 13 June 2010 - 18 June 2010, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000283941400223&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a

Theses / Dissertations | 2007

Garg S, 2007, Photochemical and biological production of superoxide: effect on redox cycling and bioavailability of iron