The magnetite-enriched particles (MEP) were separated from the mill scale on low magnetic intensity ranging from 300 to 500 gauss. The characterization of the MEP was done with scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The adsorption efficiency of MEP was investigated with batch tests and column operation. The…
Magnetite particles were synthesized by co-precipitation method from the mill-scale and characterized with FTIR, SEM, EDS and XRD. The proficiency of magnetite particles for arsenate removal is determined with batch adsorption experiments and various types of continuous reactors including column reactor fed from bottom to top, column reactor fed from top to bottom and plug…
Hundreds of millions of people in the world regularly intake groundwater that has a high-risk arsenic level. In several parts of Asia, the arsenic concentration reaches up to μ, which is above the drinking water standards of the World Health Organization (μ). The present study discusses the arsenic removal from groundwater using a mixed-valent iron…
This study focuses on the optimization and application of mill scale–derived magnetite particles for the adsorptive removal of arsenic (As) from groundwater. The reverse coprecipitation method is applied to synthesize the magnetite from the mill scale, a byproduct of the iron and steel industry. The independent variables (initial As concentration, pH, contact time, and adsorbent…
This study explored the mechanistic approaches to understand the adsorptive removal of arsenic species from aqueous medium in static and continuous adsorption processes. Fe3O4, an adsorbent is this study, is synthesized by reverse coprecipitation method using iron oxide waste of steel industry as a starting material. The surface properties of Fe3O4 were confirmed by several…
This study investigates the effect of cutting parameters on the surface roughness of turned S45C steel. Spindle speed, depth of cut, and feed rate parameters were optimized to achieve the lowest surface roughness, using 16 workpieces in the experiment. The results show that the lowest surface roughness was achieved with a depth of cut of…
Photovoltaic thermal modules (PVT) are devices that can convert solar radiation to electricity and hot water. PVTs have been proposed as a renewable source for rural areas in Cambodia. In this study, we evaluated the performance of PVT modules in the Kampong Chheuteal Institute of Technology (KCIT) campus in Kampong Thom province. A mathematical model…
This research investigates an innovative approach to enhance a high surface accuracy of artificial hip joint component as a femoral head, which utilized in a biomedical engineering. This work examines a magnetic abrasive finishing (MAF) process method via a multi-faceted CNC finishing technique. The multiple axes on X, Y, Z, A employ a movement of…
The thermal performances of the homemade flat plate solar collectors for hot water generation are experimentally investigated. There are two 80×150cm solar collectors without and with stones stored at the backside of the absorber plate to store specific amount of heat. The water storage capacity is 200 liters and 3.4 l/mn of water flowrate circulating…
The purpose of this paper is to study the wheel system for the electric forklift robot operated using remote control. The usage of this forklift is to facilitate the heavy load of workers in the industrial field. The wheel system which is equipped with the robot called Drive Steering Wheel, has two functions such as…
