UV-H2O2协同降解水中聚丙烯酰胺研究

采用UV-H2O2氧化降解水中聚丙烯酰胺,研究了H2O2浓度、反应温度、时间、pH值和水质对降解聚丙烯酰胺的影响。结果表明,在H2O2的质量浓度为330mg/L、反应时间为90min,反应温度为50℃和pH值为4.6的最佳条件下,对聚丙烯酰胺的质量浓度为250mg/L的配制水去除率为100%;对聚丙烯酰胺的质量浓度分别为250、276mg/L的模拟地层水和油田含聚污水去除率分别为68.9%和56.0%。水质对UV-H2O2降解聚丙烯酰胺有影响。

Degradation of polyacrylamide in water with UV-H2O2

UV-H2O2 was used for the oxidation degradation of polyacrylamide in water,the effects of concen-tration of H2O2,reaction temperature,reaction time,pH value and water quality on the degradation of polyacrylamide were studied.The experimental results showed that,under the optimal reaction condition that the mass concentration of H2O2 was 330 mg/L,the reaction time was 90 min,the reaction temperature was 50 ℃,the pH value was 4.6,the removal rate of polyacrylamide was 100% in distilled water which polyacrylamide mass concentration was 250 mg/L;meanwhile,for the simulant formation water and the oilfield polymer-bearing sewage which the mass concentration of polyacrylamide were 250 and 276 respectively,the removal rate reached 68.9% and 56.0% respectively.Water quality had effect on the deagradation of polyacrylamide.