MENSAH, L., PETRIE, B., SCRIMSHAW, M., CARTMELL, E., FLETTON, M. and CAMPO, P. 2023. Influence of solids and hydraulic retention times on microbial diversity and removal of estrogens and nonylphenols in a pilot-scale activated sludge plant. Heliyon [online], 9(9), article e19461. Available from: https://doi.org/10.1016/j.heliyon.2023.e19461