Open AccessEffect of Cascade Aerator Height and Flow Rate on Removal of Iron and Manganese from Groundwater at Rumah Nur Kasih
Author(s) -
Muhammad Faiz Syazwan Md Razif,
Mohd Remy Rozainy Mohd Arif Zainol,
Rhahimi Jamil,
I A Rahim
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/864/1/012135
Subject(s) - manganese , aeration , cascade , chemistry , groundwater , environmental engineering , volumetric flow rate , environmental science , environmental chemistry , chromatography , geology , physics , geotechnical engineering , organic chemistry , quantum mechanics
The quality of groundwater at Rumah Nur Kasih consist high concentration of iron (6.12 mg/L) and manganese (0.56 mg/L). The groundwater only used for external usage such as cleaning purposes. In order to reduce iron and manganese, it is proposed cascade aerator system for oxidation process. The oxidation process can reduce iron and manganese in water by increasing the dissolved oxygen. Cascade aerator is greatly influenced by the flow rate along the step and the dimension of the cascade aerator. In this study, two lab scale cascade aerators with different in height of cascade were used to find the highest removal of iron and manganese. It was found out that the optimum flowrate for both cascade aerator was 22 ml/s. Model B with higher in height has higher dissolved oxygen and removal efficiency. The removal of iron and manganese for model B are 45.2% and 21.68% respectively. The removal of iron and manganese for model A are 39.95% and 12.09% respectively.