Journal
PROPELLANTS EXPLOSIVES PYROTECHNICS
Volume 46, Issue 1, Pages 7-12Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/prep.202000166
Keywords
Activated carbon; 2; 4; 6-Trinitrotoluene; Microwave radiation; Ionized nitrogen; Regeneration
Categories
Funding
- Viet Tri Industrial University
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This study successfully achieved a high regeneration efficiency of activated carbon reaching 95.26% by utilizing a combination of microwave radiation and nitrogen ion current. The method holds great environmental significance with regenerated effluent having a COD of 130 mg/l and economic viability due to the ability to regenerate activated carbon multiple times.
Currently, 2,4,6-trinitrotoluene (TNT) explosive plants often apply activated carbon to treat aromatic nitrogen compounds in wastewater, so finding optimal measures to regenerate activated carbon is essential. The method of using microwave radiation in combination with the ionized current of nitrogen was studied. The results showed that the application of the above method helped the regeneration efficiency of activated carbon reach 95.26 % after 60 minutes of treatment. The optimum conditions were given with an microwave power of 500 W, a nitrogen pressure of 0.015 MPa. The above method has a high environmental significance when the effluent after regeneration has a chemical oxygen demand (COD) of 130 mg/l, allowing it to be discharged into the environment. The method also makes economic sense when activated carbon can be regenerated many times.
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