Plants, Shade and Solar Radiation Effect on Bio-Aerosol Pollution in Wastewater Treatment Plants.

Document Type : Research Studies

Authors

1 Researcher Public Works Engineering Department, faculty of engineering, Mansoura university

2 Professors at Public Works Engineering Department, faculty of engineering Mansoura university

Abstract

Bioaerosol pollution was estimated in Wastewater Treatment Plants "WWTPs" working by Active Sludge Process "ASP". It was estimated inside and around the WWTPs, the factors effecting on bioaerosol pollution were evaluated. This paper focuses on planting density, shads and solar radiation amount as major effecting factors which effects on bioaerosol pollution. Other secondary parameters such as boundary condition, wind direction, temperature and measurement times were taken in consideration. The bioaerosol pollution in free air has been measured by CFU/M3. A direct relationship was found between bioaerosol pollution in air and both of planting density as same as shading ratio. Conversely, there was an inversely relationship between solar radiation and bioaerosol pollution. Despite the air quality is improved by plants, plants increase microorganism account in air. Also, presence of shades in the WWTP and around it increases microorganisms account in air.

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