scholarly journals Application of surfactant Tween 80 to enhance Fenton oxidation of polycyclic aromatic hydrocarbons (PAHs) in soil pre-treated with Fenton reagents

2017 ◽  
Vol 1 (3) ◽  
pp. 197-204 ◽  
Author(s):  
Sucai Yang ◽  
Jiabin Li ◽  
Yun Song
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Tween 80 ◽  
Fenton Oxidation ◽  
Fenton Reagents ◽  
Polycyclic Aromatic

scholarly journals Step by step procedures: Degradation of polycyclic aromatic hydrocarbons in potable water using photo-Fenton oxidation process

MethodsX ◽  
2019 ◽  
Vol 6 ◽  
pp. 1701-1705 ◽  
Author(s):  
Teh Sabariah Binti Abd Manan ◽  
Salmia Beddu ◽  
Taimur Khan ◽  
Wan Hanna Melini Wan Mohtar ◽  
Ariyanti Sarwono ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Potable Water ◽  
Oxidation Process ◽  
Fenton Oxidation ◽  
Polycyclic Aromatic ◽  
Fenton Oxidation Process

The biotransformation of chrysene to trans-1,2-dihydroxy-1,2-dihydrochrysene by filamentous fungi

1996 ◽  
Vol 42 (6) ◽  
pp. 604-608 ◽  
Author(s):  
Eberhard Kiehlmann ◽  
Linda Pinto ◽  
Margo Moore
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Filamentous Fungi ◽  
Aromatic Hydrocarbons ◽  
Contaminated Soils ◽  
Tween 80 ◽  
Fungal Metabolites ◽  
Penicillium Janthinellum ◽  
Syncephalastrum Racemosum ◽  
H Nmr ◽  
Polycyclic Aromatic

The purpose of this study was to assess the ability of filamentous fungi isolated from petroleum-contaminated soils to oxidize chrysene. Only 4 of the 17 isolates known to oxidize pyrene and benzo[a]pyrene were found to produce polar products when incubated in the presence of chrysene and Tween 80: Penicillium janthinellum, Syncephalastrum racemosum, and 2 Penicillium spp. Trows-1,2-dihydroxy-1,2-dihydrochrysene was identified by 1H-NMR as one of three fungal metabolites. The extent of bioconversion to diol was approximately 3% of chrysene in 6 days. Experiments to increase chrysene oxidation with other polycyclic aromatic hydrocarbons were not successful. To our knowledge, this is the first identification of a chrysene metabolite from any microorganism and the first report of fungal oxidation of chrysene.Key words: chrysene, polycyclic aromatic hydrocarbons, filamentous fungi, bioremediation, cytochrome P450.

scholarly journals Micellar Enhanced Ultrafiltration for the Removal of Polycyclic Aromatic Hydrocarbons (PAHs) Mixtures in Underground Contaminated Water in Oman

2011 ◽  
Vol 16 ◽  
pp. 13
Author(s):  
Mohamed Aoudia ◽  
Amal Al-Sabahi ◽  
Salma Al-Kindy ◽  
Mahfoodh Al-Sheily ◽  
Fouzul Marikar
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Aromatic Compounds ◽  
Tween 80 ◽  
Underground Water ◽  
Gas Chromatography Mass Spectrometry ◽  
Contaminated Water ◽  
Standard Mixture ◽  
Polycyclic Aromatic ◽  
Micellar Enhanced Ultrafiltration

In an attempt to analyze polycyclic aromatic hydrocarbons (PAHs) in diesel contaminated underground water in Oman (Rustaq), Gas chromatography-Mass spectrometry was first used to determine the different concentrations in a standard mixture containing 16 PAHs. Retention time and calibration curves were obtained for all aromatic compounds and were used to identify a given analyte as well as its concentration in the contaminated underground water. Micellar enhanced ultrafiltration (MEUF) was then used to treat standard aqueous solution of PAHs at low concentration (~ 1 ppb) using an edible nonionic surfactant (Tween 80). The totality of the mixture components was completely rejected. Within the experimental detection limit (± 0.01 ppb), the residual PAH concentrations were less than 0.01 ppb in accord with the allowed concentrations in drinking water. Likewise, excellent rejections of PAHs in MEUF treatment of diesel contaminated underground water at an Omani site (Rustaq) were observed. The concentration of PAHs was reduced to less than 0.01 ppb, the accepted limit for the most toxic member of the PAH group (benzo(a)pyrene).  

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