本文選題：三元復(fù)合驅(qū)污水　切入點：納米光催化劑　出處：《東北石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：三元復(fù)合驅(qū)是一項有效的提高采收率技術(shù),已經(jīng)從室內(nèi)實驗、現(xiàn)場試驗發(fā)展到了推廣應(yīng)用階段。但三元復(fù)合驅(qū)采出污水中殘留的大量聚合物、表面活性劑,直接排放將會污染環(huán)境,急需將這些污水進行處理。用常規(guī)的方法處理三元復(fù)合驅(qū)污水或效果不甚理想,或能耗高,因此探索新的處理方法是十分必要的。光催化是一種綠色環(huán)保經(jīng)濟的新型污水處理技術(shù),應(yīng)用將越來越廣泛,本文提出采用光催化方法處理三元復(fù)合驅(qū)污水。本文采用溶膠凝膠法合成了納米二氧化鈦,并通過摻雜金屬離子對納米二氧化鈦進行改性,以制備出的改性納米二氧化鈦為光催化劑對聚丙烯酰胺和十二烷基苯磺酸鈉進行光催化降解,對影響光催化性能的因素進行探究。研究表明:溶膠凝膠法適合在酸性條件下進行,攪拌混合最宜時間為1h,煅燒最宜時間為5h;納米二氧化鈦的光催化效果明顯,經(jīng)摻雜改性后光催化效果加強,其中摻雜鎢0.3%二氧化鈦的光催化對表面活性劑和聚合物的降解效果均最好;光催化反應(yīng)效果良好的必要條件是有光照和加入光催化劑;光照射最佳距離10cm;最佳降解pH環(huán)境為pH=3;降解聚合物、表面活性劑最佳投入量分別為1.20%、0.11%;單一降解聚合物和表面活性劑的降解率分別為74.32%、78.83%;通過干擾實驗證明兩者可同時降解相互影響不大;同時降解兩者時,聚合物、表面活性劑的降解率分別為76.80%、71.43%;同時降解現(xiàn)場三元復(fù)合驅(qū)污水中聚合物和表面活性劑(石油磺酸鹽),平均降解率分別達到了65.72%和61.23%。
[Abstract]:ASP flooding is an effective technology to improve oil recovery. It has developed from laboratory experiments and field tests to the stage of popularization and application. However, a large number of residual polymers, surfactants, and surfactants have been produced by ASP flooding. Direct discharge will pollute the environment, and there is an urgent need to treat the sewage. Therefore, it is very necessary to explore new treatment methods. Photocatalysis is a new type of environmental protection and economic sewage treatment technology, which will be used more and more widely. In this paper, the photocatalytic treatment of ternary composite flooding wastewater was proposed. In this paper, nanometer titanium dioxide was synthesized by sol-gel method and modified by doping metal ions. The photocatalytic degradation of polyacrylamide and sodium 12 alkylbenzenesulfonate was carried out using the modified nano-TiO _ 2 as photocatalyst. The factors affecting the photocatalytic properties were investigated. The results showed that the sol-gel method was suitable for acidic conditions, the optimum mixing time was 1 h, the optimal calcination time was 5 h, and the photocatalytic effect of nano-TiO _ 2 was obvious. After doping, the photocatalytic effect was enhanced, and the photocatalytic effect of doped tungsten 0.3% TIO _ 2 was the best for both surfactants and polymers, and the necessary conditions for the good photocatalytic reaction were illumination and addition of photocatalyst. The best range of light irradiation is 10 cm, the best degradation pH environment is pH 3, the degradation of polymer, The optimum amount of surfactant input was 1.20 and 0.11 respectively; the degradation rates of single degradable polymer and surfactant were 74.32 and 78.833, respectively. The interference experiments showed that the two could degrade each other little at the same time, and when the two were degraded at the same time, the degradation rate of the polymer was 74.32 and 78.833.When the two polymers were degraded at the same time, The degradation rates of surfactants were 76.80 and 71.43, respectively, and the average degradation rates of polymer and surfactant (petroleum sulfonate) were 65.72% and 61.23, respectively.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：X741

【共引文獻】

相關(guān)博士學(xué)位論文 前1條

1 邵霞;TiO_2/C納米復(fù)合氣凝膠的制備及光催化性能研究[D];上海大學(xué);2013年

相關(guān)碩士學(xué)位論文 前1條

1 王琪;Fe、N、La、Ce共摻雜TiO_2光催化劑的制備及其性能研究[D];蘭州交通大學(xué);2014年

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本文編號：1574529