In this work a fixed bed column was used to study the adsorption capability of Jordanian natural zeolite for capturing H2S gas. The effect of pressure, inlet concentration, and zeolite particles size was study, and the breakthrough curves were obtained. The results indicate that Jordanian natural zeolite is an effective material for capturing H2S gas at a pressure around 5 atm or more and the adsorption capacity is comparable to commercial zeolite. At a pressure of 6atm or more, the saturation adsorption capacity of zeolite is about 0.24 g H2S/g zeolite. For pressure more than 6 atm the adsorption capacity remains almost the same, and therefore, 6 atm is the suitable operating pressure for Jordanian natural zeolite to capture H2S.
The content of iron ions (Fe+2 and Fe+3) in Jordanian underground water highly exceeds the standard limits in certain places. Since Jordanian water resources are very limited, the removing of these ions by cheap methods is very important. Natural zeolite which is available in Jordan in large amounts is very attractive for this purpose. The objective of this research is to evaluate Jordanian natural zeolite for removing iron ions from underground water. Batch process was used for the evaluation. The concentration of iron ions versus time for different amount of zeolite concentrations and sizes was evaluated. The results indicate that, Jordanian natural zeolite is very effective for removing iron ions from water. The zeolite concentration of about 10g/L is capable of removing almost all iron ions from water in few hours.
In this work a simple new type of flow sensors was developed; the double coil flow sensor. In this sensor two coils are magnetically coupled due to the flow of pure water inside them. The first coil, the primary coil, was supplied by AC voltage in the frequency range 0.5-1 MHz which is the coupling range of frequency for water. The voltage in the second coil, was found to be directly proportional with the volumetric flow rate of the water flowing inside the coils. The two coils can only be coupled in the laminar flow region. In the turbulent region, due to the turbulent chaos and fluctuation the two coils cannot be effectively coupled, and therefore the sensor cannot be used. The temperature of the water was found to have a negligible effect on the coupling, which add a good advantage to the simplicity of the double coil sensor. The working fluid used in this work was pure water. Other fluids are believed to be working as well, most probably at different frequency range, and this will be the subject of future work.
This work shows how a single coil wrapped on a pipe can be used to measure the volumetric flow rate inside the pipe and how by wrapping a second coil the flow direction can be detected. The developed method is very simple, accurate, and cover all the range of flow from low speed to high speed with more accuracy expected at high speed. Few turns are sufficient for the coils, no calibration is needed, and the method can be used for all kinds of nonmagnetic fluids even, with less accuracy, without the need to know the type of fluid inside the pipe. The principle of the developed method is theoretically explained and proved and then experimentally validated.
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