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Phenolic wastewaters purification by thermal parametric pumping: modeling and pilot-scale experiments
Marta Otero1, Miriam Zabkova, Alírio E Rodrigues
1Laboratory of Separation and Reaction Engineering (LSRE), Department of Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal. dfqmoc@unileon.es
Water Research
|August 13, 2005
Summary
Thermal parametric pumping effectively removes phenol and 4-nitrophenol from wastewater using a polymeric resin. This cyclic adsorptive process allows for the recovery and recycling of these phenolic compounds.
Area of Science:
- Environmental Engineering
- Chemical Engineering
- Adsorption Science
Background:
- Phenolic compounds in wastewater pose environmental risks.
- Innovative technologies are needed for their removal and recovery.
- Adsorptive parametric pumping offers a potential solution.
Purpose of the Study:
- To investigate the removal and recovery of phenol and 4-nitrophenol from liquid streams.
- To evaluate the effectiveness of thermal parametric pumping for purification.
- To assess the performance of Sephabeads SP206 as an adsorbent.
Main Methods:
- Utilized an automated parametric pumping pilot unit in semi-continuous recuperative mode.
- Employed Sephabeads SP206 polymeric resin as the adsorbent.
- Conducted batch equilibrium and fixed-bed adsorption experiments.
Main Results:
- Achieved purification levels significantly reducing phenol and 4-nitrophenol concentrations.
- Experimental results showed good agreement with the linear driving force (LDF) model simulations.
- Demonstrated the feasibility of adsorptive parametric pumping for phenolic compound removal.
Conclusions:
- Thermal parametric pumping is a viable technology for purifying wastewater containing phenolic compounds.
- The Sephabeads SP206 resin is effective for adsorbing phenol and 4-nitrophenol.
- The LDF model accurately simulates the adsorptive parametric pumping process.