| Title |
Evaluation on Removal of Organics and Nutrients from Revers Osmosis Concentrate using Activated Carbon |
| Authors |
주성희 ( Sung Hee Joo ) ; 박종민 ( Jong Min Park ) ; 이양우 ( Yang Woo Lee ) |
| Keywords |
Dissolved organic carbon; Granular activated carbon; Powdered activated carbon; Reverse osmosis concentrate; Total nitrogen; Total phosphorus |
| Abstract |
Membrane process has been one of the widely applied wastewater treatment options, especially in field. However, one of the tricky issues in the process is to treat concentrates generated from reverse osmosis (RO) system in a manner of saving cost with maximum efficiency for treating a wide range of contaminants. Stimulated with the challenging issues, we have conducted a series of experimental studies in the evaluation for removing organics and nutrients using activated carbon. Results indicated that while powdered activated carbon (PAC) efficiently removed organics and the extent of removal was proportional to the PAC dosage, little removal of nitrogen and phosphorus was observed despite increasing the PAC dose. Interestingly, applying PAC was superior in removing organics than using granular activated carbon (GAC). These results suggest smaller particle size with higher surface area could provide greater chemical reactivity in removing organics. |