超临界氧化技术处理吐氏酸生产废水

详细信息

Treatment of wastewater from Tobias acid production with supercritical water oxidation

1. Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China;
2. Guodian Tongling Power Generation Co. Ltd., Tongling 244153, China

摘要: 为更好地处理难降解的高浓度有机废水,研究了在间歇式超临界水反应装置内,超临界水氧化技术处理吐氏酸生产废水的最佳条件及其处理效果.通过单因素试验和正交试验,系统地研究了不同条件下废水COD和色度的去除率.当温度为380℃、压力为24 MPa、时间为150 s以及过氧比为1.8倍时,COD去除率可达96.7%,色度去除率可达97.5%,且反应后废水的可生化性有极大改善.
- 废水处理 /
- 吐氏酸 /
- 超临界水氧化 /
- 化学需氧量(COD)
Abstract: In order to better treat high-concentration refractory organic wastewater, the optimum conditions and treatment effect for treating wastewater from Tobias acid production were studied in a batch-type supercritical water oxidation (SCWO) device by SCWO technology. Through single factor and orthogonal tests, the removal rates of COD and chrominance were investigated under different experimental conditions. When the temperature is 380℃, the pressure is 24 MPa, the residence time is 150 s and the excess oxygen rate is 1. 8, the removal rates of COD and chrominance reaches 96. 7% and 97. 5%, respectively, and the biodegradability of the wastewater is improved greatly.
- wastewater treatment /
- Tobias acid /
- supercritical water oxidation /
- chemical oxygen demand(COD)