Sustainable remediation – The application of bioremediated soil for use in the degradation of TNT chips

Erkelens, Mason; Adetutu, Eric M.; Taha, Mohamed; Laurelta, Tudararo-Aherobo; Antiabong, John F.; Provatas, Arthur; Ball, Andrew S.

doi:10.1016/j.jenvman.2012.05.022

Cited by 29 publications

(19 citation statements)

References 56 publications

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“…The authors concluded that natural attenuation with reused soil represents a promising strategy for the bioremediation of petrogenic hydrocarbons. In this respect, Erkelens et al ( 2012 ) also reported that previously bioremediated hydrocarbon-contaminated soil led to a 70 % increase in the remediation of TNT compared with the control.…”

Section: Natural Attenuation Strategymentioning

confidence: 74%

Phytoremediation

2015

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Section: Natural Attenuation Strategymentioning

confidence: 74%

Phytoremediation

2015

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“…pak, neophodna su dalja istraživanja, naročito u oblastima masenog bilansa, smanjenja troškova i potpune mineralizacije [21]. Novije metode remedijacije su fluorescencija [6,10,27], elektrohemijske metode [25,27], fitoremedijacija [5,6,8,9,12], fotolitička transformacija [2,20], super kritična ekstrakcija tečnosti ugljendioksidom (SC-CO 2 ) [17], UC luminescencija [13,26,27], bioluminescencija [1,3], bioremedijacija [1, 4,5,7,8,11,18,[21][22][23][28][29][30], Fenton proces [2,5]. Svaka od ovih tehnologija poseduje niz prednosti, ali i mana kao što su previsoki troškovi, komplikovana aparatura, i zahtev za tehničko obučenim osobljem za efikasno funkcionisanje [22,26,27].…”

Section: Uvodunclassified

“…Biološko uklanjanje eksploziva takođe se pokazalo izvodljivim u mnogim studijama, koristeći aerobne i anaerobne bakterije i gljivice. TNT se može transformisati aerobno i anaerobno, i u oba slučaja, inicijalno formirani proizvodi su obično amino derivati -4-amino-2,6-dinitrotoluen i 2amino-4,6-dininotoluen [7,23,30].…”

Section: Uvodunclassified

Impact of TNT explosive and its degradation products on the environment

Trifunović¹,

Antonijević²

2019

Zaštita materijala

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Uticaj TNT eksploziva i njegovih produkata degradacije na životnu sredinu IZVOD Eksploziv je supstanca koja kada je izložena toploti, udaru, trenju ili detonaciji, veoma brzo oslobađa veliku količinu energije. Prilikom naglog oslobađanja energije, dolazi do povećanja temperature i pritiska i čitav eksplozivni materijal se pretvara u vruće kompresovane gasove koji se brzo šire i na taj način iniciraju talas pritiska, tj. "udarni talas". Eksploziv trinitrotoluen (TNT) je vojni eksploziv široke primene, i samim tim najveći unos eksploziva u životnu sredinu dolazi iz vojnih aktivnosti. Municija koja se koristi, kako u vojne, tako i u civilne svrhe, kontaminira sve delove sveta. TNT je slaborazgradiv i može se naći u niskim koncentracijama u zemljištu, površinskim i podzemnim vodama. Nažalost, nije štetan samo TNT, već i njegovi produkti degradacije. Eksplozivna jedinjenja negativno utiču na različite vrste zemljišta, voda, biljaka, životinja, a takođe i na čoveka. Stepen uticaja kontaminacije eksplozivom nije isti na sva živa bića. Sanacija zagađenih područja može se vršiti različitim fizičkim, hemijskim i biološkim metodama. Ključne reči: TNT eksploziv, uticaj TNT-a, produkti degradacije TNT-a, životna sredina.

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“…For the 2 -DDC(T) analysis, the normalized sample values were referenced to the values obtained for time point week 1 to study the x-fold increase in Dhc target, with the following equation: DDC(T) sample = DC(T) sample -DC(T) week 1 . The ratio of Dhc genes relative to the week 1 was estimated using 2 -DDC(T) (Livak and Schmittgen 2001;Treusch et al 2005;Erkelens et al 2012) (Table S1 in Supplementary material).…”

Section: Genomic Dna Extractionmentioning

confidence: 99%

Site-specific pre-evaluation of bioremediation technologies for chloroethene degradation

Patil

Adetutu²,

Sheppard³

et al. 2013

Int. J. Environ. Sci. Technol.

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Groundwater systems are important sources of water for drinking and irrigation purposes. Unfortunately, human activities have led to widespread groundwater contamination by chlorinated compounds such as tetrachloroethene (PCE). Chloroethenes are extremely harmful to humans and the environment due to their carcinogenic properties. Therefore, this study investigated the potential for bioremediating PCE-contaminated groundwater using laboratory-based biostimulation (BS) and biostimulationbioaugmentation (BS-BA) assays. This was carried out on groundwater samples obtained from a PCE-contaminated site which had been unsuccessfully treated using chemical oxidation. BS resulted in complete dechlorination by week 21 compared to controls which had only 30 % PCE degradation. BS also led to a approximately threefold increase in 16S rRNA gene copies compared to the controls. However, the major bacterial dechlorinating group, Dehalococcoides (Dhc), was undetectable in PCE-contaminated groundwater. This suggested that dechlorination in BS samples was due to indigenous non-Dhc dechlorinators. Application of the BS-BA strategy with Dhc as the augmenting organism resulted in complete dechlorination by week 17 with approximately twofold to threefold increase in 16S rRNA and Dhc gene abundance. Live/dead cell counts (LDCC) showed 70-80 % viability in both treatments indicating active growth of potential dechlorinators. The LDCC was strongly correlated with cell copy numbers (r [ 0.95) suggesting its potential use for low-cost monitoring of bioremediation. This study also shows the dechlorinating potential of indigenous non-Dhc groups can be successfully exploited for PCE decontamination while demonstrating the applicability of microbiological and chemical methodologies for preliminary site assessments prior to field-based studies.

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Sustainable remediation – The application of bioremediated soil for use in the degradation of TNT chips

Cited by 29 publications

References 56 publications

Phytoremediation

Phytoremediation

Impact of TNT explosive and its degradation products on the environment

Site-specific pre-evaluation of bioremediation technologies for chloroethene degradation

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