Fig. 1: Sewer biofilm reactor and testing chamber.
From: Impact of sewer biofilms on fate of SARS-CoV-2 RNA and wastewater surveillance
a, The Reactor used in this study. b, Cross-section of the Reactor with different sewage compartments, namely wastewater mixture comprising liquid and suspended solids, and biofilms growing on inner surface of Reactor wall. c, The Chamber used to create the outside-reactor condition containing wastewater mixture and individual biofilm carriers transferred from the Reactor before each experiment.
