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Water Quality and Treatment Laboratory

Research

Research

Research

Inactivation of antibiotic resistance bacteria & genes using disinfection processes

  • Treatment efficiency for inactivation of ARGs during oxidative water treatment processes
  • Identify the mode of action and kinetic model of antibiotic resistance genes and bacteria deactivation/inactivation
  • Loss of transforming activity of ARG vs gene damages measured by qPCR
  • Comparing Inactivation efficiency of intracellular vs. extracellular ARGs
  • Application to wastewater treatment plant

Transformation of organic contaminants in oxidative water treatment processes : Structural identification, reaction mechanisms, and assessment of biological activity changes

  • Oxidative water treatment processes (ozone, chlorine, ferrate etc)
  • Identification and quantification of transformation products using a range of analytical methods including (ultra)high-resolution mass spectrometry
  • Elucidation of reaction mechanisms and degradation pathways
  • Assessment of biological activities changes (toxicity and biodegradability)

Ferrate(VI) applications for advanced municipal water treatment

  • Oxidant/Disinfectant reactive to phenols, olefins, amines non-reactive to bromide
  • Coagulant Fe(III)as a final product AsO4, PO4
  • Kinetics and mechanisms for the reactions with oxidation kinetics and products of algal-derived taste & odor compounds
  • Iodide and HOI : Implications for the fate of iodine and I-DBP control
  • Oxidation of amine compounds : kinetics, products, and implications for N-DBP control

Development of gravity-driven membrane(GDM) filtration as a sustainable drinking water treatment technology

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Transformation of organic nitrogen moieties in UV/chlorine
process:kinetics and mechanisms and implications for drinking water and industrial wastewater treatment

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  • Kinetics, products, and mechanisms for UV photolysis of various organic N-CI compounds
  • Transformation of organic N moieties and implications for N-DBP formation control in drinking water quality engineering
  • UV/chlorine AOP for treating recalcitrant DON-rich wasterwaters

Chemistry and roles of halogen radical species in UV-AOP processes

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  • Kinetics and mechanisms of formation and reaction of halogen radicals
  • Formation of halogenated organic and oxyhalide byproducts
  • Process modelling and optimization:UV/chlorine,UV/persulfate,AOPs in saline waters

Formation of toxic byproducts (nitrosamines and bromate) during ozonation of impaired water resources and development of formation control strategies

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  • Precursor identification and quantification in sewage effluents and impaired source aters
  • Formation mechanisms elucidation and mitigation strategy development
  • Demonstration of control strategies in laboratory-and pilot-scale studies
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