Premium
RURAL WATER SUPPLIES FROM LATERITE RUNOFF 1
Author(s) -
Egbuniwe Nnamdi
Publication year - 1978
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1978.tb02182.x
Subject(s) - laterite , surface runoff , sedimentation , hydrology (agriculture) , turbidity , environmental science , soil water , dry season , sediment , geography , geology , soil science , ecology , chemistry , biology , nickel , paleontology , geotechnical engineering , cartography , organic chemistry , oceanography
ABSTRACT: Villagers living around Nsukka in Eastern Nigeria derive their water supplies during the dry season by subjecting the runoff from laterite soils to five months' sedimentation. This study found that by flocculatig the runoff with wood ash at a dose of 5 g/1, clear water with turbidity of less than 5 JTU, Fe of less than 1 mg/1, Coliform count of zero MPN and Plate count of less than 5 colonies was achieved after three days sedimentation.