Treatment and reuse of produced water (PW), the largest wastewater stream generated during oil and gas production, provides a promising option to address the increasing clean water demands. High-performance treatment technologies are needed to efficiently remove the organic and inorganic contaminants in PW for fit-for-purpose applications. Photocatalytic membrane reactor (PMR) is an emerging green technology for removal of organic pollutants, photoreduction of heavy metals, photo-inactivation of bacteria, and resource recovery. This study critically reviewed the mechanisms of photocatalysis and membrane processes in PMR, factors affecting PMR performance, rational design, and evaluation metrics for PW treatment. Specifically, PW characteristics, photocatalysts properties, membranes applied, and operating conditions are of utmost importance for rational design and reliable operation of PMR. PW pretreatment to remove oil and grease, colloidal and suspended solids is necessary to reduce membrane fouling and ensure optimal PMR performance. The metrics to evaluate PMR performance were developed including light utilization, exergetic efficiency, water recovery, product water improvement, lifetime of the photocatalyst, and costs. This review also presented the research gaps and outlook for future research.

采出水 (PW) 是石油和天然气生产过程中产生的最大废水流，其处理和再利用为解决日益增长的清洁水需求提供了一个有希望的选择。需要高性能处理技术来有效去除 PW 中的有机和无机污染物，以实现适合用途的应用。光催化膜反应器（PMR）是一种新兴的去除有机污染物、光还原重金属、光灭细菌和资源回收的绿色技术。本研究批判性地回顾了 PMR 中光催化和膜过程的机制、影响 PMR 性能的因素、合理设计和 PW 处理的评估指标。具体来说，PW 特性、光催化剂特性、应用的膜、和运行条件对于 PMR 的合理设计和可靠运行至关重要。PW 预处理以去除油和油脂、胶体和悬浮固体对于减少膜污染和确保最佳 PMR 性能是必要的。开发了评估 PMR 性能的指标，包括光利用率、火用效率、水回收、产品水改进、光催化剂的寿命和成本。本综述还介绍了研究差距和对未来研究的展望。光催化剂的寿命和成本。本综述还介绍了研究差距和对未来研究的展望。光催化剂的寿命和成本。本综述还介绍了研究差距和对未来研究的展望。