CAJ | 학술논문

对A企业原炼油碱渣废水处理方案进行了分析，针对其水质变化影响水质达标的问题提出超临界水氧化(SCWO)和高温湿式氧化两种处理方法，分析比较后对后者进行了工艺试验研究，结果表明，在反应温度270℃（9.0 MPa），停留时间不低于120 min的工艺条件下，处理后的出水中S2-未检出、COD、酚和有机氮的去除率分别为83.5%、99.4%和95.6%，有机氮几乎全部转化为氨氮，B/C值由0.32提高到0.69，可直接送污水处理场进一步生化处理。
대A기업원련유감사폐수처리방안진행료분석，침대기수질변화영향수질체표적문제제출초림계수양화(SCWO)화고온습식양화량충처리방법，분석비교후대후자진행료공예시험연구，결과표명，재반응온도270℃（9.0 MPa），정류시간불저우120 min적공예조건하，처리후적출수중S2-미검출、COD、분화유궤담적거제솔분별위83.5%、99.4%화95.6%，유궤담궤호전부전화위안담，B/C치유0.32제고도0.69，가직접송오수처리장진일보생화처리。
The treatment scheme of spent caustic wastewater from a refinery was analyzed, and two methods of supercritical water oxidation and high-temperature wet oxidation were proposed aiming at the problem that water quality changes affected effluent up to discharge standard. After analysis and comparison, the experimental study of high temperature wet air oxidation process was carried out. The results show that, under the condition of reaction temperature 270℃ (9.0MPa) and residence time not less than 120 min, no S2- in effluent after treatment can be determined, and the removal rates of COD, phenol and organic nitrogen are 83.5%, 99.4% and 95.6% respectively, organic nitrogen is almost completely converted to ammonia nitrogen. The B/C value is increased from 0.32 to 0.69, then the effluent can be directly sent to the sewage treatment plant for further treatment.