Biological activity within the sand bed had the strongest influence on removal efficiency of total coliform bacteria by slow sand filtration, as determined by six pilot filters (shown above). Temperature, sand bed depth, and sand size also had strong influence.
No takes yet. Share an insight, caveat, or question.
Bellamy et al. (1985) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: