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| Type |
Poster Presentation |
| Area |
Environmental Energy |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 19일 (목요일) 11:00~12:30 |
| Code |
ENVR.P-510 |
| Subject |
Development of a sponge-like porous structured media for removal of nitrogen and phosphorus in wastewater treatment process |
| Authors |
Joong Il Kim, WONSEOK CHOI*
Advanced mateiral & Strategic planning division, Cheorwon Plasma Research Institute, Korea
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| Abstract |
The discharge concentration of total nitrogen and total phosphorus in wastewater has been gradually strict. Recently, various techniques such as adsorption, coagulation, conventional activated sludge, membrane and advanced oxidation process have been used for the removal of nitrogen and phosphorus. Among these techniques, biological and chemical methods have been successfully applied in wastewater treatment processes. However, many wastewater treatment processes had progressed to multi-stage system because of their technical difficulty in adequately removing the nitrogen and phosphorus.
In order to simultaneously remove the ammonium, nitrate and phosphorus in one stage system, in this work, we developed the sponge-like porous composite media, which was prepared by mixing calcium carbonate, magnesium oxide, sulfur and zeolite, followed by foaming with an isocyanate-based polymer. The removal efficiencies for ammonium, nitrate and phosphorus were about 64%, 75% and 90%, respectively. Our results clearly indicate that the sponge-like porous composite media can be a good alternative to satisfactorily remove the nitrogen and phosphorus in one stage system.
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| E-mail |
jikim@cpri.re.kr |
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120th General Meeting of the KCS