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Kartik Chandran Laboratory

Earth and Environmental Engineering

 

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NEWS

Prof. Chandran presents a talk titled “Microbial Ecology of a Completely Autotrophic Nitrogen-Removal Over Nitrite (CANON) Biofilm Process” at the WEF/IWA Biofilm Reactor Technology Conference (August 2010) (link)

This talk describes the enrichment and tracking of anammox bacteria from activated sludge in New York City.

 

Paper titled ‘Linking Community Profiles, Gene Expression and N-Removal in Anammox Bioreactors Treating Municipal Anaerobic Digestion Reject Water’ is published (August 2010) (link)

 

Prof Chandran presents a talk titled “Molecular microbial ecology of denitrifying bacteria assimilating C1-C3 compounds” at the Gordon Research Conference on the Molecular Basis for One Carbon Metabolism (August 2010) (link)

 

ACTIVITIES AT THE 6th International Conference on Sustainable Water Environment at the University of Delaware (July 2010) (link)

·         Prof. Chandran chairs a session on “Climate Change”

·         Prof Chandran presents a paper titled “ Impact of wastewater treatment processes on global climate change- Results of field-scale monitoring and global climate modeling”

 

ACTIVITIES AT THE IWA Leading Edge Technology Conference (June 2010) (link)

·         Prof. Chandran chairs a session on “Minimizing Greenhouse Gas Emissions”

 

Paper titled ‘ N2O Emissions from Activated Sludge Processes, 2008−2009: Results of a National Monitoring Survey in the United States’ is published (May 2010) (link)

 

ACTIVITIES AT THE WATER RESEARCH CONFERENCE (April 2010) (link)

·         Prof Chandran delivers a keynote lecture titled “Azotomics - Interrogation of microbial structure and function of the global nitrogen cycle”

·         Prof. Chandran chairs a session on “Microbial Diversity and Community Dynamics”

·         Ph.D. candidate Hongkeun Park presents his research on the structural and functional ecology of anaerobic ammonia oxidation (ANAMMOX)

 

Prof. Chandran delivers a lecture at the United Nations Headquarters in New York City on the topics of Water for a Healthy World: The Challenges of Producing Clean Water", in observance of World Water Day (organized by the Department of Public Information/Non-governmental Organizations) (March 2010) (link)

 

ACTIVITIES AT THE 2nd Wastewater Treatment Modeling Seminar (March 2010) (link)

Prof. Chandran delivers a presentation on “The role of modelling in assessing green house gas (GHG) emissions”

Prof. Chandran delivers a presentation on “Biokinetic models: Reality versus modelling concepts”

 

Paper titled ‘Strategies of Nitrosomonas europaea 19718 to counter low dissolved oxygen and high nitrite concentrations (March 2010) (link)

 

Paper titled ‘ Factors promoting emissions of nitrous oxide and nitric oxide from denitrifying sequencing batch reactors operated with methanol and ethanol as electron donors (February 2010) (link)

 

Prof. Chandran receives a plaque from the New York Water Environment Association (NYWEA) marking the first ever NYWEA Chapter at Columbia University (February 2010)

 

Paper titled ‘Mechanisms and Specific Directionality of Autotrophic Nitrous Oxide and Nitric Oxide Generation during Transient Anoxia’ is published (January 2010) (link)

 

Paper titled ‘Propensity of activated sludge to amplify or attenuate tetracycline resistant bacteria and tetracycline resistance genes’ is published (January 2010) (link)

 

ACTIVITIES AT ASCE EWRI India 2010 Conference in Chennai, India (January 2010)

·         Prof. Chandran served as the Session Chair for Symposium on “Waste-to-Fuels & Energy Recovery”

·         Prof. Chandran delivered an invited presentation titled “Cost and Energy Effective Biological Wastewater Treatment: Linking Human Health and Resource Recovery”

·         Prof. Chandran contributed to a presentation titled “Waste water treatment by hybrid chemical/biological/particle assisted solid-liquid separation techniques including flotation

 

HAPPY NEW YEAR TO EVERYONE

 

·         Prof. Chandran is one of several honorees by the Columbia University School of Engineering and Applied Science (link) (October 2009)

 

·         USEPA reviewed protocol on full-scale determination of N2O emissions inventory from wastewater treatment plants is published by the Water Environment Research Foundation (link) (October 2009)

 

ACTIVITIES AT WEFTEC 2009

·         Prof. Chandran served as the Session Chair for the Leading Edge Research Symposium on “Biological Nitrogen Transformations”

·         Invited Workshop Presentation,  Workshop 103, Presentation titled “N2O generation from WWTPs: WERF U4R07 and other studies”

·         Invited Workshop Presentation,  Workshop 211, Presentation titled “Active fractions and N2O generation potential of methanol and ethanol”

·         Podium Presentation, Session 39, Biological Nitrogen Transformations “Molecular based characterization of the microbial ecology and activity of ANAMMOX bioreactors”, presented by Ph.D. candidate, Hongkeun Park (October 2009)

 

ACTIVITIES AT IWA Specialized Conference on Nutrient Management 2009

·         Prof. Chandran served as the Session Co-Chair for the Symposium on “Molecular Studies”

·         Podium presentation, Session 5C, Greenhouse Gases, Energy “Factors promoting the emission of nitrous oxide and nitric oxide from denitrifying sequencing batch reactors”

·         Podium presentation, Session 5C, Greenhouse Gases, Energy “Spatial and temporal variability in N2O generation and emission from fullscale wastewater treatment facilities” (September 2009)

 

Podium presentation titled ‘Nitrous Oxide and Nitric Oxide Fluxes from Biological Nitrogen Removal Processes — From Molecular Mechanisms to National Inventories’ delivered at the  AEESP 2009 Conference - Grand Challenges in Environmental Engineering and Science: Research and Education in Iowa City, IA (July 2009) (link)

 

ACTIVITIES AT WEF Nutrient Removal Conference 2009

·         Invited presentation,  Water Environment Research Foundation Stakeholder Meeting“ Active fraction and biokinetics of methylotrophic denitrification”

·         Invited presentation,  Water Environment Research Foundation Stakeholder Meeting“ Characterization of N-GHG from Wastewater Treatment Operations”

·         Podium presentation, Session 4C, Nitrogenous Greenhouse Gas Emissions “Spatial and temporal variability in N2O generation and emission from wastewater treatment facilities” (June-July 2009)

 

Prof. Chandran delivers a presentation titled ‘Elucidating the structure and function of heterotrophic denitrification on different organic electron donors’ at the Fifth Activated Sludge Population Dynamics Conference ASPD5 in Aalborg, Denmark (May 2009) (link)

 

Two posters presented by members of the Kartik Chandran Laboratories at the 109th General Meeting of the American Society for Microbiology in Philadelphia, PA (May 2009)

 

Paper on impact of different electron donors on methylotrophic denitrification is published (April 2009) (link)

 

Prof. Chandran delivers an invited presentation titled ‘Characterization of greenhouse nitrogen discharges from wastewater treatment plants’ at the Virginia Water Environment Association EdCom Seminar Series in Richmond, VA (April 2009) (Link)

 

Prof. Chandran delivers an invited presentation titled ‘Overview of climate change impacts associated with wastewater treatment strategies’ at the Chesapeake Bay Ecosystem Based Management Workshop in Baltimore, MD (March 2009) (Live link)

 

New York Times interview on biodegradable credit cards (February 2009) (link)

 

Prof. Chandran is an invited speaker at the Edmonton Waste Management Center of Excellence seminar on Greenhouse Gas Regulations and Quantification: Emerging Solid Waste and Wastewater Perspectives (January 2009) (link)

 

Prof. Chandran receives the National Science Foundation Early Faculty Development CAREER award (January 2009) (link)

 

HAPPY NEW YEAR TO EVERYONE

 

Prof. Chandran is an invited featured speaker at the WERF Research Forum and will present highlights of two WERF projects, the Nutrient Challenge and N-GHG emissions from Wastewater Treatment Plants (December 2008) (link)

 

Prof. Chandran delivers a guest lecture titled “The influence of structural and functional microbial ecology on the performance of engineered BNR reactors” at the Danish Technical University (November 2008)

 

Prof. Chandran’s Project on Wastewater Treatment and Climate Change is featured on the Water Environment Research Foundation newsletter “Progress” (link)

 

Prof. Chandran is featured on the University of Connecticut, School of Engineering newsletter “Emaginations” (link)

 

ACTIVITIES AT WEFTEC 2008

·         Prof. Chandran served as the Session Chair for the Leading Edge Research Symposium on Nitrogen Removal

·         Invited Workshop presentation,  W201: WEF/WERF Nutrient Removal: What the U.S. EPA, WERF, and Others are Doing to Help Address this Challenge “ Molecular based evaluation of the active fraction and biokinetics of methylotrophic denitrification”

·         Podium presentation, Session 43, Nitrogen Removal “Gene expression analysis of autotrophic denitrification by Nitrosomonas europaea 19718” (Leading Edge Research Symposium)

·         Podium presentation, Session 101,  Microconstituent interactions in biological processes “ The fate of tetracycline resistant bacteria in wastewater treatment plants as a function of operating characteristics”, presented by post-doctoral research scientist Dr. Sungpyo Kim (October 2008)

 

Prof. Chandran delivers a presentation titled “Microbial Ecology and Biokinetics of a Partial Nitrification Reactor” during the Nijmegen N-cycle Meeting, “From Nitrogen Cycle to Nitrogen Network” held at the Radboud University, Nijmegen, the Netherlands (September 2008)

 

Paper on impact of different electron acceptors on methylotrophic denitrification is published (August 2008) (link)

 

WEF Manual of Practice FD-3, ‘Industrial Wastewater Management Treatment and Disposal’ is published, McGraw Hill, ISBN 0071592385 / 9780071592383.  Prof. Chandran contributed to this MOP as a member of the Industrial Wastewater management Treatment and Disposal Task Force of the Water Environment Federation (June 2008) (link)

 

Prof. Chandran delivers a guest lecture titled “Use of Genomics to Study (De)Nitrification Processes” during the Advanced Course-Environmental Biotechnology held at the Delft University of Technology (June 2008) (link)

                     

Two posters presented by members of the Kartik Chandran Laboratories at the 108th General Meeting of the American Society for Microbiology in Boston, MA (June 2008)

 

Regional Workshop “Bridging the Gap between Environmental Engineering Practice and Research” is held by the Columbia student chapter of NYWEA, under the stewardship of Prof. Kartik Chandran (link) (April 2008)

 

Prof. Chandran delivers an invited talk titled “Energy and cost effective wastewater treatment” at the GE Research Center, Schenectady, NY (April 2008)

 

Prof. Chandran delivers an invited talk titled “Gaseous N emissions from autotrophic pathways” at the Illinois Institute of Technology (April 2008)

 

Paper on “Impact of Disinfectant switching on water quality in distribution systems” is accepted for publication in the Journal of the American Water Works Association (link) (April 2008)

 

Proposal “A metallomics based approach to bacterial physiology and toxicity” has been awarded synchrotron beamtime at Argonne National Laboratory, Argonne, IL.  (April 2008)

 

Paper on “ Molecular and biokinetic characterization of methylotrophic denitrification using nitrate and nitrite as terminal electron acceptors” is presented at the 4th International Water Association Sequencing Batch Reactor Conference (SBR4) (April 2008)

 

Paper on Metabolic and Empirical Modeling of the Acceleration Phase in Autotrophic Ammonia Oxidation is accepted in Water Environment Research (link) (March 2008)

 

Paper on “ Distinctive microbial ecology and biokinetics of autotrophic ammonia and nitrite oxidation in a partial nitrification bioreactor” is accepted in Biotechnology and Bioengineering (link) (March 2008)

 

Paper on “  A critical comparison of extant batch respirometric and substrate depletion assays for estimation of nitrification biokinetics” is accepted in Biotechnology and Bioengineering (link) (March 2008)

 

Prof. Chandran delivers an invited talk titled “Characterization and optimization of microbial fuel-cells for sustainable wastewater treatment” at RUTGERS, the State University of New Jersey (March 2008)

 

Paper on the role of physiological state, growth mode and oxidative stress on Cd(II) mediated inhibition of N. europaea is published in Applied and Environmental Microbiology (link) (February 2008)

 

There were three presentations (including an invited presentation) from the Kartik Chandran Laboratory at the 80th Annual New York Water Environment Association Winter Meeting (February 2008)

 

Prof. Chandran delivers an invited talk titled “  Insights into the novel microbial ecology and biokinetics of key nitrogen biotransformations ” at the University of Connecticut (January 2008)

 

HAPPY NEW YEAR TO EVERYONE

 

2007

 

Prof. Chandran delivers an invited talk titled “ Active fraction and biokinetics of methylotrophic denitrification” at the Water Environment Research Foundation External COD Workshop (December 2007)

 

Two papers from Prof. Chandran’s group appear in the proceedings of the Leading Edge Research Symposium at WEFTEC 2007, “Population dynamics, biokinetics and gaseous nitrogen production from partial nitrification reactors operated at low dissolved oxygen concentrations” and Microbial ecology, biokinetics and thermodynamics of methylotrophic denitrification” (October 2007)

 

Prof. Chandran chairs ‘Leading Edge Research, Biological Nitrogen Removal’ in the 80th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2007 held in San Diego, CA, (October 2007)

 

New Columbia University Student Chapter of the New York Water Environment Federation is formed under the stewardship of Prof. Chandran (October 2007)

 

Prof. Chandran has been nominated to the Board of Directors of the New York Water Environment Federation Metropolitan Chapter (September 2007)

 

Prof. Chandran delivers an invited lecture titled “The leading edge of BNR, Old questions new answers?” at the CDM Global Headquarters, Cambridge, MA.  (May 2007)

 

Prof. Chandran delivers an invited lecture titled “Contemporary topics related to genomics, physiology and ecology of nitrification” at the Department of Biotechnology, Indian Institute of Technology, Madras, India.  (May 2007)

 

Prof. Chandran’s proposal “A metallomics based approach to bacterial physiology and toxicity” has been awarded synchrotron beamtime at Argonne National Laboratory, Argonne, IL.  (April 2007)

 

NAS Fellowship: Prof. Chandran has been awarded a National Research Council Summer Faculty Fellowship to conduct research on “Molecular and nano-scale studies on the impact of disinfection on biofilm formation, chemical stress resistance and cell surface characteristics of a model nitrifying bacterium”.  The research is conducted at the United States Environmental Protection Agency.  (April 2007)

 

Prof. Chandran has been invited to the United States Environmental Protection Agency in Cincinnati, OH to deliver a lecture on “Contemporary topics related to genomics, physiology and ecology of nitrification in engineered systems”.  (March 2007)

 

Prof. Chandran delivered an invited presentation at the Nutrient Removal 2007 Specialty Conference jointly hosted by the Water Environment Federation (WEF) and International Water Association (IWA) in Baltimore, MD.  The presentation was titled “Microbiology of Biological Nutrient Removal” and was part of the sold out workshop on “Fundamentals of Biological Nutrient Removal”.  (March 2007)

 

Prof. Chandran has been quoted in MIT Technology Review on the application of novel technologies related to harnessing energy from solid wastes (February 2007) (Link)

 

Prof. Chandran delivered an invited presentation at the New York Academy of Sciences on “Global, Regional and Local Water Quality: Evaluating the Science and the Hype”.  The talk focused on “State-of-the-art Approaches for Achieving Cost Effective Biological Nutrient Removal” and was sponsored by the Green Science and Environmental Systems Group (January 2007) (Link)

 

2006

 

Paper titled Observation and mathematical description of the acceleration phenomenon in batch respirograms associated with ammonium oxidation” has been published in Water Science and Technology (October 2006) (Link)

 

Prof. Chandran co-chaired two sessions in the 79th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2006 held in Dallas, TX, (October 2006)

 

USEPA and the American Water Works Research Foundation publish a report titled "Seasonal Chlorination Practices and Impacts to Chloraminating Utilities” to which Dr. Chandran has contributed, (October 2006)

 

Paper titled “Cd(II) MEDIATED INHIBITION OF Nitrosomonas europaea IS LINKED TO OXIDATIVE STRESS AND IS IMPACTED BY PHYSIOLOGICAL STATE AND GROWTH MODE” will appear in proceedings of WEFTEC 2006, (October 2006)

 

Grant awarded by the Columbia Initiatives in Science and Engineering for a proposal titled “The global nitrogen genome project – A key to the evolution and functioning of the modern biosphere”, (March 2006)

 

Paper titled “Cd(II) MEDIATED INHIBITION OF Nitrosomonas europaea IS LINKED TO OXIDATIVE STRESS AND IS IMPACTED BY PHYSIOLOGICAL STATE AND GROWTH MODE” is ranked number 1 out of all 103 abstracts submitted for presentation at WEFTEC 2006, (February 2006)

 

2005

 

Paper on optimal design for parameter estimation is published in Water Research (December 2005) (Link)

 

Paper on applicability of extant respirometry for biokinetic estimation of nitrification is published in Water Science and Technology (November 2005) (Link)