Biological layer in household slow sand filters: characterization and evaluation of the impact on systems efficiency - Lubarsky, Helen; Fava, Natália de Melo Nasser; Freitas, Bárbara Luíza Souza; Terin, Ulisses Costa; Oliveira, Milina de; Lamon, Antonio Wagner; Pichel, Natalia; Byrne, John Anthony; Sabogal-Paz, Lyda Patricia; Fernandez Ibañez, Pilar (Water, 2022)