Open figure viewer
Keywords:
WATER,
PURIFICATION,
TREATMENT,
MICROORGANISMS,
TESTS,
DRINKING,
IRON,
BIOLOGICAL,
CHEMICAL,
BACTERIA,
FILTRATION,
GELATINE,
ORGANISMS,
WATER SUPPLY,
CONTAMINATION,
SAND,
FILTERS,
BEDS,
POLLUTION,
ORGANIC,
MATTER,
RIVERS,
CITIES,
PUBLIC HEALTH
This content is only available via PDF.
© Thomas Telford and ICE
1886
