scholarly journals Urban sources of synthetic musk compounds to the environment

2019 ◽  
Vol 21 (1) ◽  
pp. 74-88 ◽  
Author(s):  
Fiona Wong ◽  
Matthew Robson ◽  
Lisa Melymuk ◽  
Chubashini Shunthirasingham ◽  
Nick Alexandrou ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Indoor Air ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Ambient Air ◽  
Synthetic Musk

Synthetic musk compounds found in ambient air and surface tributary waters may due to emissions from indoor air and release from wastewater treatment plant.

scholarly journals The use of biofiltration process to remove malodorous gases from the wastewater treatment plant

2018 ◽  
pp. 53-61
Author(s):  
Katarzyna Piekarz ◽  
Alicja Zawadzka
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Ambient Air ◽  
Test Results ◽  
Applied Method ◽  
Odorous Compounds ◽  
Odorous Substances

Odorous substances emitted to ambient air from wastewater treatment plants cause a serious nuisance to inhabitants in the direct vicinity of such emitters. The solutions currently used to remove malodorous gases in the Wastewater Treatment Plant in Belchatow do not fulfill their function properly. This article presents the test results of the composition and concentrations of odorous compounds emitted from the above- mentioned plant. In addition, the paper introduces the concept of eliminating substances by the biofiltration process. Due to the applied method, one can expect to reduce the odor by at least 90%.

scholarly journals Development of a Portable Detection Method for Enteric Viruses from Ambient Air and Its Application to a Wastewater Treatment Plant

Pathogens ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 131 ◽  
Author(s):  
Koichi Matsubara ◽  
Hiroyuki Katayama
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Detection Method ◽  
Treatment Plant ◽  
Enteric Viruses ◽  
Ambient Air ◽  
Virus Concentration ◽  
Sampling Point ◽  
Potential Source ◽  
Collection Medium

The ambient air from wastewater treatment plants has been considered as a potential source of pathogenic microorganisms to cause an occupational risk for the workers of the plants. Existing detection methods for enteric viruses from the air using a liquid as the collection medium therefore require special care to handle on-site. Knowledge accumulation on airborne virus risks from wastewater has been hindered by a lack of portable and handy collection methods. Enteric viruses are prevalent at high concentrations in wastewater; thus, the surrounding air may also be a potential source of viral transmission. We developed a portable collection and detection method for enteric viruses from ambient air and applied it to an actual wastewater treatment plant in Japan. Materials of the collection medium and eluting methods were optimized for real-time polymerase chain reaction-based virus quantification. The method uses a 4 L/min active air sampler, which is capable of testing 0.7–1.6 m3 air after 3–7 h sampling with a detection limit of 102 copies/m3 air in the field. Among 16 samples collected at five to seven locations in three sampling trials (November 2007–January 2008), 56% (9/16) samples were positive for norovirus (NV) GII, with the highest concentration of 3.2 × 103 copies/m3 air observed at the sampling point near a grit chamber. Adenoviruses (4/16), NV GI (6/16), FRNA bacteriophages GIII (3/16), and enteroviruses (3/16) were also detected but at lower concentrations. The virus concentration in the air was associated with that of the wastewater at each process. The results imply that the air from the sewer pipes or treatment process is contaminated by enteric viruses and thus special attention is needed to avoid accidental ingestion of viruses via air.

Multidrug-resistant Enterobacteriaceae from indoor air of an urban wastewater treatment plant

2016 ◽  
Vol 188 (7) ◽  
Author(s):  
Juliana V. Teixeira ◽  
Pedro Cecílio ◽  
Daniela Gonçalves ◽  
Vítor J. P. Vilar ◽  
Eugénia Pinto ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Indoor Air ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Multidrug Resistant ◽  
Urban Wastewater ◽  
Urban Wastewater Treatment

Impact of atmospheric deposition on the headworks of a wastewater treatment plant - a case study

2001 ◽  
Vol 43 (5) ◽  
pp. 223-229 ◽  
Author(s):  
K. ZAtasi ◽  
G. Fujita ◽  
G. Le Platte ◽  
C. Hufnagel ◽  
G. Keeler ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Atmospheric Deposition ◽  
Wastewater Treatment Plant ◽  
Polychlorinated Biphenyl ◽  
Treatment Plant ◽  
Primary Source ◽  
Ambient Air ◽  
Analytical Methodology ◽  
Sanitary Sewer ◽  
The Impact

Specialized sampling equipment and ultra-clean analytical methodology were employed to quantify the concentrations or fluxes of mercury (Hg), cadmium (Cd) and polychlorinated biphenyl (PCBs) in ambient air, precipitation, runoff, sanitary sewer, and wastewater treatment plant (WWTP) influent. The relationship between the atmospheric deposition and runoff on controlled surfaces were explored for the three pollutants. The impact of the atmospheric deposition and runoff to the headwork loading of the WWTP were investigated. Atmospheric deposition was found to be the primary source of the mass of Cd, Hg, and PCBs in runoff from the controlled surfaces. Neither atmospheric deposition nor the runoff was the main sources of the three pollutants to the Detroit Wastewater Treatment Plant (WWTP). Wet weather flow contributes the main portion of the Cd, Hg, and PCBs loading to the WWTP.

Analysis and balance of phosphorous removal from wastewater at urban wastewater treatment plant

2020 ◽  
Vol 15 (2) ◽  
pp. 142-151
Author(s):  
Peter Lukac ◽  
Lubos Jurik
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Wastewater Treatment Plants ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Phosphorus Recovery ◽  
Anaerobic Sludge ◽  
Biological Phosphorus Removal ◽  
The Mean

Abstract:Phosphorus is a major substance that is needed especially for agricultural production or for the industry. At the same time it is an important component of wastewater. At present, the waste management priority is recycling and this requirement is also transferred to wastewater treatment plants. Substances in wastewater can be recovered and utilized. In Europe (in Germany and Austria already legally binding), access to phosphorus-containing sewage treatment is changing. This paper dealt with the issue of phosphorus on the sewage treatment plant in Nitra. There are several industrial areas in Nitra where record major producers in phosphorus production in sewage. The new wastewater treatment plant is built as a mechanicalbiological wastewater treatment plant with simultaneous nitrification and denitrification, sludge regeneration, an anaerobic zone for biological phosphorus removal at the beginning of the process and chemical phosphorus precipitation. The sludge management is anaerobic sludge stabilization with heating and mechanical dewatering of stabilized sludge and gas management. The aim of the work was to document the phosphorus balance in all parts of the wastewater treatment plant - from the inflow of raw water to the outflow of purified water and the production of excess sludge. Balancing quantities in the wastewater treatment plant treatment processes provide information where efficient phosphorus recovery could be possible. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. There are also two outflows - drainage of cleaned water to the recipient - the river Nitra - 9.9 kg Ptot/day and Ptot content in sewage sludge - about 120.3 kg Ptot/day - total 130.2 kg Ptot/day.

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