CAJ | 학술논문

三元复合驱采油开发中注入的聚丙烯酰胺等化学物质随采出液一并采出，导致采出液黏度增加，受此影响，污水处理系统沉降过滤装置处理效率下降，出水水质难以稳定达标回注。降低黏度关键在于降解污水中聚丙烯酰胺，本研究采用O3氧化降解聚丙烯酰胺，降解过程中引入超声，利用超声强化作用提高O3降解效率。结果表明，在三频正交场（20 kHz+28 kHz+40 kHz）作用下，控制声强1.6 W·cm?2，作用时间15 min，进水聚丙烯酰胺平均含量300 mg·L?1，黏度4.5 mPa·s，降解聚丙烯酰胺后水体黏度降低到0.7 mPa·s，黏度变化率达到86.1%。通过检测反应前后水中和大气中O3浓度，表明超声强化作用将O3利用率提高55%。O3降解过程引入超声产生协同效应，增加了O3传质效率，促进 O3转化为H2O2，进而生成高活性·OH，促使聚丙烯酰胺降解效率提高3倍，反应时间约缩短3/4。
삼원복합구채유개발중주입적취병희선알등화학물질수채출액일병채출，도치채출액점도증가，수차영향，오수처리계통침강과려장치처리효솔하강，출수수질난이은정체표회주。강저점도관건재우강해오수중취병희선알，본연구채용O3양화강해취병희선알，강해과정중인입초성，이용초성강화작용제고O3강해효솔。결과표명，재삼빈정교장（20 kHz+28 kHz+40 kHz）작용하，공제성강1.6 W·cm?2，작용시간15 min，진수취병희선알평균함량300 mg·L?1，점도4.5 mPa·s，강해취병희선알후수체점도강저도0.7 mPa·s，점도변화솔체도86.1%。통과검측반응전후수중화대기중O3농도，표명초성강화작용장O3이용솔제고55%。O3강해과정인입초성산생협동효응，증가료O3전질효솔，촉진 O3전화위H2O2，진이생성고활성·OH，촉사취병희선알강해효솔제고3배，반응시간약축단3/4。
The produced water from ASP (alkali,surfactant and polymer) flooding oil had higher viscosity because of the presence of polymer residues, which made the separation of oil and water even harder. In this paper the degradation of polymer by using ultrasonic enhanced O3 oxidation was performed in (20+28+40) kHz three orthogonal field with the intensity of 1.6 W·m?2 and the addition of 7.5 mg·L?1 O3 for 15min. The change ratio of dynamic viscosity could attain 86.1%. By calculating utilization rate of O3 and detecting the intermediate products of H2O2, it showed that the ultrasonic enhanced O3 oxidation introduced the synergistic effect, increased the transfer efficiency and promoted the generation of ·OH. The polymer degradation efficiency was increased three times and the reaction time was shorted about 3/4.