| 超声波处理焦化废水影响因素 |
| |
| 引用本文： | 成泽伟,苍大强. 超声波处理焦化废水影响因素[J]. 北京科技大学学报, 2009, 31(11) |
| |
| 作者姓名： | 成泽伟 苍大强 |
| |
| 作者单位： | 北京科技大学冶金与生态工程学院,北京,100083 |
| |
| 摘 要： | 利用超声波处理焦化废水,系统考察了作用时间、超声功率、焦化废水初始pH值、化学需氧量(CODCr)和氨氮(NH_4~+-N)初始质量浓度、溶解气体等因素对去除废水中COD_(Cr)和NH_4~+-N的影响,并对超声复合氧化剂处理焦化废水进行了对比分析. 结果表明,超声复合H_2O_2和Fenton试剂可发生协同作用,使COD_(Cr)和NH_4~+-N去除率显著提高,其去除率由大到小依次为:超声+Fenton>超声+H_2O_2>Fenton>超声>H_2O_2. 结合GC-MS分析结果,对COD_(Cr)和NH_4~+-N的去除过程进行了初步探讨. 发现处理后的焦化废水中萘类、蒽类和喹啉类等生物降解难的有机物的比例明显降低.
|
| 关 键 词： | 焦化废水 超声 化学需氧量 氨氮 |
Influence factors for treating coking wastewater by ultrasonic wave |
| |
| CHENG Ze-wei,CANG Da-qiang. Influence factors for treating coking wastewater by ultrasonic wave[J]. Journal of University of Science and Technology Beijing, 2009, 31(11) |
| |
| Authors: | CHENG Ze-wei CANG Da-qiang |
| |
| Affiliation: | CHENG Ze-wei,CANG Da-qiang School of Metallurgical , Ecological Engineering,University of Science , Technology Beijing,Beijing 100083,China |
| |
| Abstract: | The treatment of coking wastewater was researched by ultrasonic wave. The influences of irradiation time,ultrasonic power,initial pH value of coking wastewater,initial concentrations of chemical oxygen demand (CODCr) and ammonium ( NH+4-N),and dissolved gas on the removal of CODCr and NH+4-N were investigated systematically. The ultrasonic treatments of coking wastewater combined with oxidants were comparatively analyzed. The results show that the ultrasonic treatment combined with H2O2 or Fenton reagent ha... |
| |
| Keywords: | coking wastewater ultrasonic chemical oxygen demand ammonium |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
