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Projects Database

Use of Ozonation in Combination with Nanocrystalline Ceramic Membranes for Controlling Disinfection By-products


Project Information

Award Amount:$353,959.00
Dollars Leveraged:$0.00
Start-End Dates:5/15/03-5/16/06
URL: http://cfpub.epa.gov/ncer_abstracts/index.cfm/fuseaction/dis...
Description:The objective of this study is to determine the feasibility of using a combined ozonation and membrane filtration system to control disinfection by-products (DBPs) precursors in drinking water treatment process. Conventional ceramic membranes and ceramic membranes coated with a nano-crystalline catalyst that decomposes ozone will be used in this study. The particular objectives are: 1. To develop methods for the preparation of a nano-crystalline ceramic membranes which catalyze the decomposition of ozone and foulants and to characterize these membranes. 2. To determine the effect of ozonation on membrane fouling in filtration systems using both conventional and catalytic membranes. 3. For the source waters studied, determine the effect of ozonation on the properties of natural organic matter and relate this information to the overall performance of the system. 4. To investigate the effect of control parameters on the fouling rate and product water quality using selected conventional and catalytic membranes. The initial goal of this project is the development of a nano-crystalline ceramic membrane that catalyzes the decomposition of ozone and has the desired porosity, permeability and MWCO. Once a suitable membrane (or membranes) is (are) formed, we will evaluate the membrane(s) in combination with ozone for its ability to resist fouling, alter the NOM and control DBPs. The optimized membrane will be investigated to determine the effect of control parameters on the fouling rate and product water quality. We expect to develop and demonstrate that treatment using catalytic nanocrystalline ceramic membranes in combination with ozonation is more effective than conventional methods, including ozonation, and other membrane processes in terms of operational performance and removal of DBPs.

Products/Reports

  • 2003 Progress Report: Use of Ozonation in Combination with Nanocrystalline Ceramic Membranes for Controlling Disinfection By-products
    The objective of this study is to determine the feasibility of using a combined ozonation and membrane filtration system to control disinfection byproducts (DBPs) precursors in the drinking water treatment process. Conventional ceramic membranes and ceramic membranes coated with a nanocrystalline catalyst that decomposes ozone will be used in this study. The initial goal of this project is the development of a nanocrystalline ceramic membrane that catalyzes the decomposition of ozone and has the desired porosity, permeability, and molecular weight cut-off (MWCO). Once a suitable membrane (or membranes) is (are) formed, we will evaluate the membrane(s) in combination with ozone for its ability to resist fouling, alter the natural organic matter (NOM) and control DBPs. The optimized membrane will be investigated to determine the effect of control parameters on the fouling rate and product water quality.
  • 2004 Progress Report: Use of Ozonation in Combination with Nanocrystalline Ceramic Membranes for Controlling Disinfection By-products
    The goal of this research project is to determine the feasibility of using a combined ozonation and membrane filtration system to control disinfection by product s (DBP s) precursors in the drinking water treatment process. Conventional ceramic membranes and ceramic membranes coated with a nanocrystalline catalyst that decomposes ozone will be used in this study. The specific objectives are to: (1) develop methods for the preparation of a nanocrystalline ceramic membrane s that catalyze the decomposition of ozone and foulants and to characterize these membranes; (2) determine the effect of ozonation on membrane fouling in filtration systems using both commercial and catalytic membranes; (3) determine, for the source waters studied, the effect of ozonation on the properties of natural organic matter and relate this information to the overall performance of the system; and (4) investigate the effect of control parameters on the fouling rate and product water quality using selected conventional and catalytic membranes. Catalytic membranes were produced by coating c ommercially available Alumina-zirconia-titania (AZT) ceramic membranes with Fe2O3 nanoparticles having an average diameter of 4-6 nm and then sintering the membranes.

Funding Organizations

Below is a list of organizations with individual contacts that are funding this project.

U.S. EPA Headquarters - Primary Contact

U.S. EPA Headquarters 8722R
1200 Pennsylvania Avenue, N. W.
Washington, District of Columbia 20460
p: 202-343-9858
Individual Contacts


Organizations Receiving Funding

Below is a list of organizations with individual contacts that are receiving funding for this project.

Michigan State University - Primary Contact

East Lansing, Michigan 48824
Individual Contacts
  • Susan Masten (masten@egr.msu.edu)
  • Melissa Baumann (mbaumann@msu.edu)

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