Pre-treatment before slow sand filtration with pebble matrix filtration at Kataragama water treatment works, Sri Lanka

Rajapakse, J.P.Sumanaweera, S.2019-10-012019-10-012007Engineer, 40(2):p.53-57https://dl-iesl.nsf.gov.lk/handle/1/1661Pre-treatment before slow sand filtration with pebble matrix filtration at Kataragama water treatment works, Sri LankaArticle