Title: Development of biological processes for the removal of iron from water intended for the production of drinking water - case of ferruginous waters in Algeria

Authors: Kassoul Ahmed; Saaed Hamoudi Abdelamir

Addresses: Department of Hydraulics, University of Science and Technology of Oran Mohamed Boudiaf, B.P. 1505 El M'naoeur, 31000 Oran, Algeria ' Department of Hydraulics, University Hassiba Ben Bouali of Chlef, B.P. C78, Ouled Fares, Chlef, Algeria

Abstract: The objective of this study is to remove iron from groundwater by biological means, using slow filtration (V = 0.2 m/h). This technology was characterised by high efficiency throughout the operating period, estimated at 24 days of removal of iron, turbidity and suspended solids. The respective contents estimated in raw water were 5.46 mg/l of iron, 296 NTU of turbidity and 964 mg/l for suspended solids. The maximum value of the efficiency of the technology used for the removal of iron has been set at 98.26%, 99.97% for turbidity and 98.24% for suspended solids, corresponding to a concentration of 0.089 mg/l of iron, 0.09 NTU of turbidity and 17 mg/l of suspended matter in the produced water.

Keywords: underground water; iron removal; biofiltres; iron-oxidising; bacteria; Algeria.

DOI: 10.1504/IJHST.2022.123165

International Journal of Hydrology Science and Technology, 2022 Vol.13 No.4, pp.457 - 465

Received: 14 Apr 2020
Accepted: 28 Aug 2020

Published online: 01 Jun 2022 *

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