期刊
WATER RESEARCH
卷 220, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.watres.2022.118593
关键词
Ceramic membranes; Nanofiltration; Oil production; Wastewater; Water treatment
资金
- Alberta Innovates Technology Futures (AITF) [DE-FOA-0001905]
- National Alliance for Water Innovation (NAWI)
- National Alliance for Water Innovation (NAWI) - U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE) , Advanced Manufacturing Office [DE-FOA-0001905]
An industrial ceramic nanofiltration membrane was tested for treating wastewater from a Canadian oil field, and the results show that the membrane has a high rejection rate for ions and compounds, making it suitable for oil field wastewater treatment.
An industrial ceramic nanofiltration membrane (pore size 0.9 nm) was tested in a Canadian oil field for more than 12,500 h to treat wastewater directly from daily operations, without any type of pre-treatment. This wastewater contained a high content of total suspended solids (13 to 510 mg/kg), and total organic carbon (31 to 134 mg/kg). The membrane unit was operated at different transmembrane pressure (TMP) set points (4-16 bar) and recovery set points (40-80%). The data show that ion and compound rejection depend strongly on a combination of both TMP and recovery, with the largest rejection occurring at low recovery values and high TMP values. Two mechanisms were responsible for rejection: sieving, which mostly impacted compound rejection, and electrostatic phenomena that impacted ion rejection. It is shown that ion rejection depends linearly on charge density of the ion. Ion rejection was measured as high as 85% and compounds (such as TSS) were rejected as high as 100%. The specific flux varied between 1-10 L/(m2.h.bar). Results from this field testing indicate the possibility of using these types of ceramic membranes for oil field wastewater treatment.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据