oxide sulfate
Recently Published Documents


TOTAL DOCUMENTS

47
(FIVE YEARS 1)

H-INDEX

11
(FIVE YEARS 0)

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 263
Author(s):  
Federico Aulenta ◽  
Enza Palma ◽  
Ugo Marzocchi ◽  
Carolina Cruz Viggi ◽  
Simona Rossetti ◽  
...  

In anaerobic sediments, microbial degradation of petroleum hydrocarbons is limited by the rapid depletion of electron acceptors (e.g., ferric oxide, sulfate) and accumulation of toxic metabolites (e.g., sulfide, following sulfate reduction). Deep-sea sediments are increasingly impacted by oil contamination, and the elevated hydrostatic pressure (HP) they are subjected to represents an additional limitation for microbial metabolism. While the use of electrodes to support electrobioremediation in oil-contaminated sediments has been described, there is no evidence on their applicability for deep-sea sediments. Here, we tested a passive bioelectrochemical system named ”oil-spill snorkel” with two crude oils carrying different alkane contents (4 vs. 15%), at increased or ambient HP (10 vs. 0.1 MPa). Snorkels enhanced alkanes biodegradation at both 10 and 0.1 MPa within only seven weeks, as compared to nonconductive glass controls. Microprofiles in anaerobic, contaminated sediments indicated that snorkels kept sulfide concentration to low titers. Bulk-sediment analysis confirmed that sulfide oxidation by snorkels largely regenerated sulfate. Hence, the sole application of snorkels could eliminate a toxicity factor and replenish a spent electron acceptor at increased HP. Both aspects are crucial for petroleum decontamination of the deep sea, a remote environment featured by low metabolic activity.



2019 ◽  
Vol 28 (24) ◽  
pp. 171-185 ◽  
Author(s):  
E. Mohammadi Zahrani ◽  
Cecilia Cuevas-Arteaga ◽  
D. Verhelst ◽  
A. Alfantazi


2019 ◽  
Vol 12 (1) ◽  
pp. 646-653 ◽  
Author(s):  
Mohamed N. Goda ◽  
Hani Nasser Abdelhamid ◽  
Abd El-Aziz A. Said


2018 ◽  
Vol 3 (26) ◽  
pp. 7608-7611 ◽  
Author(s):  
Zhen‐Tao Lu ◽  
Yang Chi ◽  
Huai‐Guo Xue ◽  
Sheng‐Ping Guo
Keyword(s):  


2016 ◽  
Vol 86 (5-6) ◽  
pp. 385-406 ◽  
Author(s):  
Thomas Gheno ◽  
Brian Gleeson


2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
S. Iaiche ◽  
A. Djelloul

ZnO/ZnAl2O4nanocomposite films were synthesised by ultrasonic spray pyrolysis (USP) by extracting Al2O(SO4)2oxide with zinc chloride hydrate in deionised water. The sample was then subjected to heat treatment at 650°C and 700°C for 1 h, which led to the formation of the spinel oxide (ZnAl2O4) and wurtzite (ZnO) phases. Al2(SO4)3·18H2O salt was transformed into aluminum oxide sulfate Al2O(SO4)2, which is an intermediary decomposition product, by calcination at 795°C for 3 h. The structures of the synthesised ZnO/ZnAl2O4films were confirmed by XRD, FTIR, and X-ray photoelectron spectroscopy (XPS). XPS spectra of the major Zn, Al, and O photoelectron lines and the major X-ray induced Zn LMM Auger lines for ZnO/ZnAl2O4are presented.



2014 ◽  
Vol 1074 ◽  
pp. 279-283 ◽  
Author(s):  
Kamran Akhbari ◽  
Saeideh Beheshti ◽  
Ali Morsali ◽  
Veysel T. Yilmaz ◽  
Orhan Büyükgüngör


Sign in / Sign up

Export Citation Format

Share Document