Laboratory investigations were carried out on a simple iron removal plant suitable for small-scale rural water supply.
Title | Laboratory development of a small-scale iron removal plant for rural water supply |
Publication Type | Journal Article |
Year of Publication | 1990 |
Authors | Vigneswaran, S, Joshi, D |
Pagination | p. 300-308: fig., tab. |
Date Published | 1990-10-01 |
Keywords | aeration, coliforms, crushed stone, filtration, iron removal, laboratory testing, manganese removal, matrix filtration, sand, small-scale activities, thailand, turbidity removal, water quality |
Abstract | Laboratory investigations were carried out on a simple iron removal plant suitable for small-scale rural water supply. The pilot-scale filter unit was made from an oil drum and consisted of two parts: a coarse-media (broken stones) contact filter for aeration and a sand-gravel matrix filter for the removal of insoluble iron and manganese salts. At a filtration rate of 0.7 m/h (3 l/min) iron and manganese removal was over 90%, reducing iron levels of 4.2-5.5 mg/l to less than 1.0 mg/l, and manganese from 1.2-1.7 mg/l to less than 0.5 mg/l. Although total coliform removal efficiency exceeded 96%, it did not satisfy water quality standards. If operated for 4 hours every day, the unit is capable of supplying 700 litres of water a day, sufficient for 30 people. |
Notes | Includes references |
Custom 1 | 250 |