Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production
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| Language: | English |
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University of Cincinnati / OhioLINK
2011
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=ucin1299010001 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-ucin12990100012021-08-03T06:14:34Z Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production Platten, William E., III Environmental Engineering Insensitive Munitions 2,4-Dinitro Anisole N-Methyl Paranitro Aniline Ethanol Fluidized-Bed Bioreactors Anaerobic Transformation 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. 2011-04-20 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1299010001 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1299010001 unrestricted This thesis or dissertation is protected by copyright: some rights reserved. It is licensed for use under a Creative Commons license. Specific terms and permissions are available from this document's record in the OhioLINK ETD Center. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Environmental Engineering Insensitive Munitions 2,4-Dinitro Anisole N-Methyl Paranitro Aniline Ethanol Fluidized-Bed Bioreactors Anaerobic Transformation |
| spellingShingle |
Environmental Engineering Insensitive Munitions 2,4-Dinitro Anisole N-Methyl Paranitro Aniline Ethanol Fluidized-Bed Bioreactors Anaerobic Transformation Platten, William E., III Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production |
| author |
Platten, William E., III |
| author_facet |
Platten, William E., III |
| author_sort |
Platten, William E., III |
| title |
Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production |
| title_short |
Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production |
| title_full |
Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production |
| title_fullStr |
Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production |
| title_full_unstemmed |
Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production |
| title_sort |
anaerobic treatment of wastewaters containing 2,4-dinitroanisole and n-methyl paranitro aniline from munitions handling and production |
| publisher |
University of Cincinnati / OhioLINK |
| publishDate |
2011 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1299010001 |
| work_keys_str_mv |
AT plattenwilliameiii anaerobictreatmentofwastewaterscontaining24dinitroanisoleandnmethylparanitroanilinefrommunitionshandlingandproduction |
| _version_ |
1719433323069046784 |