Determination of Operating Conditions for High Dissolved Solids Wastewater Treatment with Reverse Osmosis process

In this study the absorption of carbon dioxide from an air stream has been investigated in rotating packed bed. At first, hydrodynamics experiments have been done to determine the flow pattern and pressure drop at two cases, single phase and two phase flow. Then, absorption experiments have been done by using water, MEA and DEA solution with different weight percent. The effect of parameters such as rotational speed, gas and liquid flow rate, type and concentration of solution on absorption efficiency investigated. Results showed that increasing of rotational speed, liquid flow rate and solution concentration increases absorption efficiency. In contrast, increasing in gas flow rate leads to decreases in efficiency. Hydrodynamics analysis showed that pressure drop increases by liquid and gas flow rates.