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Keywords:
WATER POLLUTION RESEARCH BOARD,
DESIGN,
SEWAGE,
PURIFICATION,
WORKS,
PERCOLATION,
FILTERS,
ACTIVATED,
SLUDGE,
SCREENING,
DETRITUS,
TANKS,
GRIT,
REMOVAL,
DISPOSAL,
TREATMENT,
SEDIMENTATION,
FILTRATION,
ACTS,
MINWORTH,
BIRMINGHAM,
UK
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© Thomas Telford and ICE
1941
