| 作成年度 | 2017 年度 |
|---|---|
| 論文名 | Phosphorus recovery from anaerobic digestion effluent by electrolysis with platinized titanium electrodes |
| 論文名（和訳） | |
| 論文副題 | |
| 発表会 | The 2nd International Resource Recovery Conference |
| 誌名 | The 2nd International Resource Recovery Conference |
| 巻・号・回 | |
| 発表年月日 | 2017/08/05 ～ 2017/08/09 |
| 所属研究室／機関名 | 著者名（英名） |
|---|---|
| Materials and Resources Research Group, Innovative Materials and Resources Research Center, Public Works Research Institute | Yugo Takabe |
| Materials and Resources Research Group, Innovative Materials and Resources Research Center, Public Works Research Institute | Yuji Okayasu |
| Materials and Resources Research Group, Innovative Materials and Resources Research Center, Public Works Research Institute | Mizuhiko Minamiyama |
| Materials and Resources Research Group, Innovative Materials and Resources Research Center, Public Works Research Institute | Yukiyo Yamasaki |
| Materials and Resources Research Group, Innovative Materials and Resources Research Center, Public Works Research Institute | Ryuji Uematsu |
| 抄録 |
|---|
| Phosphorus is non replaceable and limited resource, and its recovery from waste streams is an important technology. This study evaluated characteristics of phosphorus recovery from anaerobic digestion effluent in a wastewater treatment plant by electrolysis with platinized titanium electrodes and availability of the recovered precipitate as fertilizer. Electrode size was 180 mm × 70 mm × 0.5 mm with coated platinum of 0.2 μm on both sides. Two electrodes were paired at 1 cm intervals, and electrolysis was conducted with four electrode sets. The polarity inversion at 3 h intervals successfully detached the precipitate from the cathode. In addition, the generated gas by the electrolysis separated the precipitate from sludge originated from the effluent, and high purity phosphorus (160 mg-P/mg-dry) could be recovered as submerging particle. Heavy metal content in the particle satisfied with Fertilizers Regulation of Japan, and availability of the particle as fertilizers was demonstrated. |
