▪ Abstract The world's population is concentrated in urban areas. This change in
demography has brought landscape transformations that have a number of documented …

Despite an array of significant technological advances, effluents from wastewater treatment
plants (WWTPs) generate abrupt physical and chemical discontinuities along the fluvial …

Secondary and tertiary wastewater treatment is common in developed countries, but little is
known about the responses of lotic ecosystems to contemporary wastewater treatment plant …

Models suggest that microbial activity in streams and rivers is a globally significant source of
anthropogenic nitrous oxide (N2O), a potent greenhouse gas, and the leading cause of …

Twelve wastewater treatment plants (WWTPs) were sampled in France and Belgium in 1999
and 2000 in order to estimate the fecal coliform (FC) removal efficiency of various types of …

Nitrification is simulated in existing water quality models by multiplying the rate with the
attenuation factors for water temperature and dissolved oxygen. The effect of pH, substrates …

Abstract Downstream from metropolitan Paris (France), a large amount of ammonium is
discharged into the Seine River by the effluents of the wastewater treatment plant at …

The Achères wastewater treatment plant, located just downstream of Paris, discharges its
effluents into the lower Seine River. The effluents contain large numbers of heterotrophic …

Executive summary Nature of the problem (science/management/policy)• Freshwater
ecosystems play a key role in the European nitrogen (N) cycle, both as a reactive agent that …

Pollution from agriculture and urban effluents influences the ecology and biochemical
functioning of the Seine River. Nitrification dominates nitrogen transformations downstream …