Determination of sterols, estrogens and inorganic ions in waste water and size-segregated aerosol particles emitted from waste water treatment

Chemosphere ◽  
2006 ◽  
Vol 64 (7) ◽  
pp. 1134-1140 ◽  
Author(s):  
Melanie Beck ◽  
Michael Radke
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Aerosol Particles ◽  
Waste Water Treatment ◽  
Inorganic Ions

Determination of odorous VOCs and the risk of occupational exposure to airborne compounds at the waste water treatment plants

2011 ◽  
Vol 63 (10) ◽  
pp. 2183-2192 ◽  
Author(s):  
J. Lehtinen ◽  
A. Veijanen
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Occupational Exposure ◽  
Waste Water Treatment ◽  
Sludge Dewatering ◽  
Risk Levels ◽  
Water Treatment Plants ◽  
Waste Water Treatment Plants ◽  
Exposure Limit

Concentrations of non methane-VOCs and risk levels of employees’ exposure to VOCs were determined at two Finnish waste water treatment plants. The concentration of hydrogen sulphide (H2S) reached the Finnish OEL (occupational exposure limit). The concentrations of styrene, 1,2-dichloroethane, and toluene were found to be elevated at plant A. 328.4 μg/m3 of styrene and 709.8 μg/m3 toluene was found in the sludge dewatering, and 955.8 μg/m3 of 1,2-dichloroethane was detected in the trash rake. TVOC concentrations varied from 149.8 μg/m3 in the Plant B sludge dewatering to 7719.0 μg/m3 in the Plant A sludge dewatering. Most of the detected TVOC concentrations were quite high in comparison to the indoor air regulations or recommendations. The most odorous compounds were determined by combined TD-GC-MS-sniffing analysis. Odour was mainly caused by sulphur-containing compounds, aldehydes, and butanoic acid, in addition to aromatic compounds such as styrene, toluene and 4-methylphenol.

Development of ICP-MS and ICP-OES methods for determination of gadolinium in samples related to hospital waste water treatment

2016 ◽  
Vol 70 (9) ◽  
Author(s):  
Lenka Bendakovská ◽  
Anna Krejčová ◽  
Tomáš Černohorský ◽  
Jana Zelenková
Keyword(s):  
Waste Water ◽  
Rare Earth ◽  
Water Treatment ◽  
Rare Earth Elements ◽  
Inductively Coupled Plasma ◽  
Waste Water Treatment ◽  
Hospital Waste ◽  
Inductively Coupled ◽  
Icp Ms

AbstractA suitable analytical method making possible the determination of Gd and other rare-earth elements in samples related to hospital waste water treatment was sought with regard to various aspects of the experiment aimed at monitoring the fate of Gd-based contrast agents in the aquatic environment. The discrepancies and pitfalls of the proposed methodology were considered, resulting in a functional experimental plan. The inductively coupled plasma mass spectrometry (ICP-MS) method was used for the determination of Gd and other rare earth elements in river and hospital waste water and algae

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