| Title |
Evaluation of Pretreatment Processes for Dissolved Organic Carbon Removal in a Desalination Process |
| Authors |
김우항 ( Woo Hang Kim ) ; ( Okada Mitsumasa ) |
| Keywords |
Desalination; Reverse osmosis; Pretreatment; Pollutants |
| Abstract |
The various pretreatment processes were evaluated to remove organic pollutants of weathered oil contaminated seawater(WOCS) for reverse osmosis desalination process. Biodegradation, coagulation, ultrafiltration, advanced oxidation processes and granular activated carbon filtration were used to evaluate the potential of organic pollutants removal in WOCS. Dissolved Organic Carbon(DOC) was almost not removed by biodegradation in WOCS. DOC` was removed by 25% and 10% with the addition of FeCl₃ and PAC in WOCS, respectively. The removal efficiency using ultrafiltration(WOCS 500) was about 20% of DOC and 40% of E_(260), respectively. In AOP application of WOCS, the removal of organic materials was improved up to 60% by the combination of UV/O₃ compared to UV process. However, 98% of DOC in WOCS could be removed by granular activated carbon filtration. It is revealed that activated carbon filtration is the best process for the pretratment of DOC removal. |