Effect of treatment in percolating filters on the numbers of bacteria in sewage in relation to the composition and size of filtering medium.
D001419:Bacteria; D021902:Enterobacter aerogenes; D004926:Escherichia coli; D005374:Filtration; D012722:Sewage
D012722:Sewage
AEROBACTER AEROGENES; ESCHERICHIA COLI; FILTERS; SEWAGE