Microbial contamination of the air at the wastewater treatment plant

Get it

Wastewater treatment plants (WWTPs) primarily serve to protect the environment. Their task is to clean waste water from the agglomerations. On the other hand wastewater treatment plants can also negatively affect the environment in their neighbourhood. These include emissions of odour and microorganisms. This article discusses the microbial contamination of the air, called bioaerosols in selected wastewater treatment plant for 18 000 p.e. From results of the work is evident that the largest group of microorganisms in the monitored air were psychrophilic and mesophilic bacteria and microscopic fungi. The number of psychrophilic bacteria ranged from 14 to 12 000 CFU/m3 (colony forming units in 1 m3), the number of mesophilic bacteria varied in the range from 20 to 18 500 CFU/m3 and the fungi from 25 to 32 000 CFU/m3 in the air. The amount of actinomycetes ranged from 1 to 1 030 CFU/m3 and faecal coliform bacteria from 0 to 2 500 CFU/m3. Furthermore, it was confirmed that the highest air contamination was around the activation tank, area for dewatered sludge and around the building of mechanical cleaning, depending on the season. The density of studied microorganisms correlated with air temperature. … full description

Bibliographic Details

Other Authors

Monika Vítězová, Tomáš Vítěz, 1977- , Hana Mlejnková , Tomáš Lošák, 1975-

Document Type

Articles

Physical Description

8 il.

Published in

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. -- ISSN 1211-8516. -- Roč. 60, č. 3 (2012), s. 233-239

Subjects

WASTEWATER TREATMENT

Cleaners

AIR POLLUTION

BIOLOGICAL CONTAMINATION

MICROBIOLOGICAL ANALYSIS

Bacterial counting

PSYCHROPHILIC MICROORGANISMS

MESOPHILE MICROORGANISMS

FUNGI

ACTINOMYCETALES

Faecal coliforms

SEASONAL VARIATION

SEASONS

AIR TEMPERATURE

odpadní vody

čištění odpadních vod

znečištění ovzduší

biologická kontaminace

mikrobiologická analýza

počítání baktérií

psychrofilní mikroorganismy

mezofilní mikroorganismy

houby

aktinomycety

fekální koliformní bakterie

sezónní změny

roční období

teplota vzduchu

čističky odpadních vod > bioaerosol

more… less…

Item Description

1 obr., 5 grafů, 2 tabulky

Bibliography

Literatura na s. 239