Determination of volatile organohalides in water and treated sewage effluents

1976 ◽  
Author(s):  
D.F. Goerlitz
Keyword(s):  
Sewage Effluents ◽  
Treated Sewage

Detection and identification of dyes showing AhR–binding affinity in treated sewage effluents

2006 ◽  
Vol 53 (11) ◽  
pp. 35-42 ◽  
Author(s):  
P.-H. Chou ◽  
S. Matsui ◽  
T. Matsuda
Keyword(s):  
Rhodamine B ◽  
Reversed Phase ◽  
Future Research ◽  
Acid Dyes ◽  
Anthraquinone Dyes ◽  
Chemical Structures ◽  
Sewage Effluents ◽  
Treated Sewage ◽  
Recombinant Yeast Strain ◽  
Ligand Activity

A bioassay using the YCM3 recombinant yeast strain was utilised to investigate the presence of dioxin-like compounds that activate the aryl hydrocarbon receptor (AhR) in treated sewage effluents. AhR ligand activity was detected in the concentrated extracts of effluent samples collected in March, June and October 2004 from Kyoto city, Japan. HPLC fractionation was carried out using C18 reversed-phase columns, and possible AhR ligands were further isolated and purified. By using LC/MS/MS, one weak AhR ligand was identified to be rhodamine B base, a fluoran dye. In addition, two other coloured ligands were postulated to be disperse anthraquinone dyes or their metabolites because of their UV spectra and HPLC retention times. The AhR-binding affinities of 12 commercial dyes with different chemical structures were also studied. Among the dyes tested, hydrophobic anthraquinone dyes exhibited higher AhR ligand activity, but azo dyes or hydrophilic acid dyes showed no or very low AhR ligand activity. Rhodamine B base and disperse anthraquinone dyes were suggested to be potential xenobiotic AhR ligands. Future research regarding their contamination in aquatic environments and toxicological information is necessary.

Determination of Total Mercury in Soils, Waste Water and Sewage Effluents

1997 ◽  
Vol 30 (8) ◽  
pp. 1579-1590 ◽  
Author(s):  
M. T. M. Zaki ◽  
M. A. Esmaile
Keyword(s):  
Waste Water ◽  
Total Mercury ◽  
Sewage Effluents

scholarly journals Direct Determination of Molecular Hydrogen Sulfide in Sewage Effluents

1990 ◽  
Vol 40 (10) ◽  
pp. 1410-1411
Author(s):  
Sabah A. Abdul-Wahab ◽  
A. A. Al-Haddad ◽  
M. S. E. Abdo
Keyword(s):  
Hydrogen Sulfide ◽  
Molecular Hydrogen ◽  
Direct Determination ◽  
Sewage Effluents
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