摘要
研究了不同反应时间、温度、酸碱度和药品投放量条件下纳米级零价铁材料对硫酸盐的去除效果。研究结果表明:随着反应时间、溶液温度、溶液酸碱度以及药品投放量增加,硫酸根离子去除率均表现出多段化特征。根据试验前后硫酸根离子去除率变化区间的范围大小,将温度与反应时间归为影响硫酸根离子去除率权重较大的因素,而酸碱度和药品投放量归为权重较小的因素。为降低百口泉油田污水回注导致的管道结垢腐蚀和地层堵塞的风险,同时兼顾经济性,建议采油厂在处理油田污水时将温度控制在20℃(硫酸根离子去除率为79.2%),反应时间控制在2 h(硫酸根离子去除率为76.6%),此时纳米级零价铁对污水中硫酸根离子的去除效果最优。
The removal efficiency of sulfate ions by nanoscale zero-valent iron materials under different reaction times,temperatures,pH values and dosages of chemicals was studied.The research results showed that with the increase of reaction times,solution temperatures,pH values and dosages of chemicals,the removal rate of sulfate ions exhibited multi-segment characteristics.Based on the range of changes in the removal rate of sulfate ions before and after the experiment,temperatures and reaction times were classified as factors with a greater influence on the removal rate,while pH values and dosages of chemicals were classified as factors with a lesser influence.To reduce the risks of pipeline scaling and corrosion as well as formation blockage caused by the reinjection sewage from Baikouquan Oilfield,while also considering economic efficiency,it is recommended that the temperature be controlled at 20℃(with a sulfate ion removal rate of 79.2%)and the reaction time be controlled at 2 hours(with a sulfate ion removal rate of 76.6%)when treating oilfield sewage.At this time,nanoscale zero-valent iron has the best removal efficiency on sulfate ions in sewage.
作者
王钰娇
王御鑫
邹昕城
李菁
WANG Yujiao;WANG Yuxin;ZOU Xincheng;LI Jing(Baikouquan Oil Production Plant of CNPC Xinjiang Oilfield Company,Karamay 834000,China;Exploration and Development Institute of CNPC Xinjiang Oilfield Company,Karamay 834000,China)
出处
《石油化工腐蚀与防护》
2025年第6期14-17,共4页
Corrosion & Protection In Petrochemical Industry
基金
新疆百口泉/乌夏油田压舱石示范工程研究(2022KT0807)。
关键词
油田污水
纳米级零价铁
硫酸根离子
去除率
oilfield sewage
nanoscale zero-valent iron
sulfate ion
removal rate
