Effect of Hydraulic Retention Time on the Filtration Performance of Porous Concrete

Author(s): Murugan Muthu, Manu Santhanam and Mathava Kumar
Paper category: Proceedings
Book title: Proceedings of International Conferences (ICACMS) Advances in Construction Materials and systems Vol 2
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN: 978-2-35158-194-0
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 220-225
Total Pages: 6
Language : English

Abstract: This study investigates the effect of hydraulic retention time on the filtration performance of porous concrete for removal of lead. Porous concrete, which is made of cement, gap-graded coarse aggregates and water, can present a way forward for slow filtration, as it allows the water to percolate through its interconnected voids. Cylindrical porous concrete specimens of size 100 × 150 mm (ø × H) having flow rate of 626 ± 301 mL/min were prepared and then cured in tap water for a period of 7 days. Up to 86% and 98% of Pb were chemically trapped in the porous concrete specimens after passage of dilute solution containing 8 mg/L Pb through such specimens maintained with 30 cm constant head and trickling head respectively. This suggests that the increase in residence time increased the filtration of heavy metal by the porous concrete.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00