Microcosms experiment of activated sludge
Thousands of metagenomes were compiled from four globally distributed biomes spanning contrasting trophic conditions and degrees of anthropogenic impact, including marine waters, built environment (BE) surfaces, soils, and wastewater treatment plant (WWTP) activated sludge (AS). These cross-biome analyses were complemented by AS microcosm experiments as a model system under contrasting nutrient regimes.