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Anaerobic bacteria formed small aggregates with both wastewater droplets and dust particles of sewage sludge origin and as such may be responsible for adverse health outcomes in exposed workers. Keywords Wastewater treatment plant · Anaerobic bacteria · Exposure assessment · PCR · Size distribution Introduction
Anaerobic Wastewater Treatment 403 Obviously, the exact ranking of the above advantages depends on the local economic and societal conditions. In the Netherlands, excess sludge handling is the cost-determining factor in operating wastewater treatment systems. Since land filling is no option for