As an independent, specialist consultancy, Aqua Enviro have a highly experienced team with a proven track record of providing expertise to clients in the water, waste, industrial and agricultural sector.
We can provide comprehensive, tailored services which combine a mix of technical knowledge and practical applicationFind out more
Aqua Enviro’s in-house laboratory provides commercial analytical services for water, wastewater, biosolids and organic waste.
We offer unrivalled turnaround times, accurate and quality data, extensive technical expertise and support from our team of highly qualified professionals.Find out more
Aqua Enviro provide specialist technical training courses and conferences for the water, wastewater and organic waste industry.
With particular focus on operational experience and practical solutions our events provide a forum for practitioners, managers and researcher to meet and discuss the challenges facing the industries.Find out more
Daniel. F. C. Dias1* and Marcos von Sperling1
1 Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6627 – Escola de Engenharia, Bloco 1 – sala 4622; 31270–901 – Belo Horizonte, Brazil(free)
Solar radiation is considered the primary route for disinfection of pathogenic bacteria in maturation ponds. There is scarce information on depth profiling and attenuation of Photosynthetically Active Radiation (PAR), UV-A and UV-B in shallow maturation ponds operating in tropical climates. Data of solar irradiance of the three wavelengths, together with turbidity, have been acquired from different depths for over one year in a shallow maturation pond (45 cm of depth) operating in Brazil. UV-A and UV-B were still detected at 10 cm from the surface, but from 15 cm both waves were undetectable. PAR was still detected at 30 cm of depth. Attenuation of irradiation showed to be related to turbidity. Attenuation coefficients were calculated and a model including log10 of turbidity is proposed for predicting irradiance attenuation.
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SUEZ Advanced Solutions UK Ltd trading as Aqua Enviro