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Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production

Platten, William E., III
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1299010001

Abstract Details

2011, MS, University of Cincinnati, Engineering and Applied Science: Environmental Engineering.
The U.S. Army is evaluating new, insensitive explosives to produce safer munitions. Two potential new components are 2,4-dinitro anisole (DNAN) and N-methyl paranitro aniline (MNA), which would eventually make their way to wastestreams generated during the production and handling of new munitions. The effectiveness of the Anaerobic Fluidized-Bed Bioreactor (AFBB) for treatment and transformation of these two new chemical components in munitions was studied. Each compound was fed to AFBBs both separately in two bioreactors and together in a third. The bioreactors were monitored for removal and transformation. Ethanol was used as the electron donor. The results show that both compounds were biotransformed in the AFBB system. DNAN was found to transform into diaminoanisole and MNA was found to transform into N-methyl-p-phenylenediamine. Both of these by-products appeared to form azobond polymers after exposure to air. To test the resilience of the reactors, the compounds were removed from the reactors being fed the compounds individually for three weeks and perchlorate was added to the reactor fed both compounds. In the individual reactors, DNAN showed that a re-acclimation period was necessary for it to be biotransformed again, while MNA was converted immediately upon reintroduction. In the combined reactor, the AFBB continued transformation of both DNAN and MNA without interruption and was also able to remove the perchlorate after a two week acclimation period. In addition to evaluating the fate of DNAN and MNA in the AFBB, adsorption isotherms revealed that no interactions occur between DNAN and MNA and granular activated carbon (GAC) under either oxic or anoxic conditions. The anaerobic fluidized-bed bioreactor technology was demonstrated here to be an effective means of converting the new munitions, but produce secondary compounds. The fate and environmental impact of the reduced products and the polymers formed upon exposure to oxygen need to be elucidated.
Makram Suidan, PhD (Committee Chair)
Margaret Kupferle, PhD, PE (Committee Member)
George Sorial, PhD (Committee Member)
54 p.
Environmental Engineering
Insensitive Munitions; 2,4-Dinitro Anisole; N-Methyl Paranitro Aniline; Ethanol; Fluidized-Bed Bioreactors; Anaerobic Transformation

Recommended Citations

Citations

  • Platten, III, W. E. (2011). Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1299010001

    APA Style (7th edition)

  • Platten, III, William. Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production. 2011. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1299010001.

    MLA Style (8th edition)

  • Platten, III, William. "Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production." Master's thesis, University of Cincinnati, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1299010001

    Chicago Manual of Style (17th edition)

ucin1299010001
638
© 2011, some rights reserved.Creative Commons License Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production by William E. Platten III is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.