Evaluation of Treatment Methods for Nitro-Aromatic Compounds from TNT Contaminated Soil in Pebbles Packed Reed-Beds Mesocosm

The production of nitroaromatic compounds has not only agravated from some decades but their accidental or intentional release into the nearby environment, causes serious health problems. Lab-scale horizontal-subsurface-down-flow-constructed-wetland (HSDF-CW) was developed and planted with reeds to...

Full description

Saved in:
Bibliographic Details
Published inWater, air, and soil pollution Vol. 235; no. 9; p. 577
Main Authors Ali, Mahwish, Arif, Muhammad, Seher, Shama, Haleem, Abdul, Farhat, Syeda Mehpara, Hassan, Syeda Fariha, Ahmed, Safia
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.09.2024
Springer Nature B.V
Subjects
Aromatic compounds
Artificial wetlands
Atmospheric Protection/Air Quality Control/Air Pollution
Beds (process engineering)
Biodegradation
Bioremediation
Biotransformation
Climate Change/Climate Change Impacts
Domestic wastewater
Earth and Environmental Science
Environment
Health problems
Hydrogeology
Intermediates
Microbiological strains
Mineralization
Oxidation
Phytotoxicity
Reedbeds
Soil contamination
Soil microorganisms
Soil pollution
Soil Science & Conservation
Substrates
Toluene
Wastewater
Wastewater treatment
Water
Water Quality/Water Pollution
Constructed Wetlands
Phytotoxicity
Bioremediation
TNT
Reuse
Online AccessGet full text

Cover

More Information
Summary:The production of nitroaromatic compounds has not only agravated from some decades but their accidental or intentional release into the nearby environment, causes serious health problems. Lab-scale horizontal-subsurface-down-flow-constructed-wetland (HSDF-CW) was developed and planted with reeds to treat 2,4,6-Tri-nitro-toluene (TNT) contaminated soil collected from the site of industrial complex and was subjected to bioremediation, where domestic wastewater and TNT degrading bacterial strains were added as co-substrates for effective removal of nitro-aromatic compounds. Results showed that 80.1%, 60.08%, 85.7% &67.9% removal of COD, Total-Nitrogen, nitrate and sulphate respectively was attained through bioremediation, bio-stimulation (91%, 85.9%, 94% &80.01%) and bio-augmentation (90.5%, 90.9%, 95% & 91%)respectively after thirty days of incubation.FTIR results indicated the biotransformation of nitro-aromatic compounds into different intermediates.Moreover, phytotoxicity results suggested that treated-water had no toxic effect on seed germinations and could be used for irrigation. Thus,assisted bioremediation through CW proved to be an excellent alternate for in-situ treatment of nitro-aromatic-compounds. Graphical Abstract
ISSN:0049-6979
1573-2932
DOI:10.1007/s11270-024-07404-x