Mechanism of enhancement ozonation by ultrasound for degradation of polyacrylamide in ASP produced

ZHANG Lei; LIU Huiling; ZHANG Bo

doi:10.11949/j.issn.0438-1157.20150085

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Mechanism of enhancement ozonation by ultrasound for degradation of polyacrylamide in ASP produced

更新时间：2025-12-10

- Mechanism of enhancement ozonation by ultrasound for degradation of polyacrylamide in ASP produced
- CIESC Journal Issue 6, Pages: 2242-2247(2015)
- 作者机构：
  
  1. 哈尔滨工业大学市政环境工程学院,黑龙江,哈尔滨,150090
  2. 东北石油大学地球科学学院,黑龙江,大庆,163318
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150085
  CLC： 783.2
- Online First：25 March 2015，
  
  Published：25 March 2015
- 稿件说明：
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ZHANG Lei, LIU Huiling, ZHANG Bo. Mechanism of enhancement ozonation by ultrasound for degradation of polyacrylamide in ASP produced[J]. CIESC Journal, 2015, (6): 2242-2247.
DOI：

ZHANG Lei, LIU Huiling, ZHANG Bo. Mechanism of enhancement ozonation by ultrasound for degradation of polyacrylamide in ASP produced[J]. CIESC Journal, 2015, (6): 2242-2247. DOI： 10.11949/j.issn.0438-1157.20150085.

摘要

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。

Abstract

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.

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