Forward osmosis-membrane distillation (FO-MD) hybrids were recently found suitable for produced water treatment. Exclusion of synthetic chemical draw solutions, typically used for FO, can reduce FO-MD operational costs and ease its onsite application. This study experimentally validates a novel concept for the simultaneous treatment of different produced water streams available at the same industrial site using an FO-MD hybrid system. The water oil separator outlet (WO) stream was selected as FO draw solution and it generated average fluxes ranging between 8.30 LMH and 26.78 LMH with four different feed streams. FO fluxes were found to be governed by the complex composition of the feed streams. On the other hand, with WO stream as MD feed, an average flux of 14.41 LMH was achieved. Calcium ions were found as a main reason for MD flux decline in the form of CaSO₄ scaling and stimulating the interaction between the membrane and humic acid molecules to form scale layer causing reduction in heat transfer and decline in MD flux (6%). Emulsified oil solution was responsible for partial pore clogging resulting in further 2% flux decline. Ethylenediaminetetraaceticacid (EDTA) was able to mask a portion of calcium ions and resulted in a complete recovery of the original MD flux. Under hybrid FO-MD experiments MD fluxes between 5.62 LMH and 11.12 LMH were achieved. Therefore, the novel concept is validated to produce fairly stable FO and MD fluxes, with few streams, without severe fouling and producing excellent product water quality.

最近发现正渗透膜蒸馏（FO-MD）杂化物适用于采出水处理。排除通常用于FO的合成化学汲取解决方案，可以降低FO-MD的运营成本并简化其现场应用。这项研究实验性地验证了使用FO-MD混合系统同时处理同一工业场所可用的不同采出水流的新颖概念。选择水油分离器出口（WO）流作为FO汲取溶液，它使用四种不同的进料流产生的平均通量在8.30 LMH和26.78 LMH之间。发现FO通量受进料流的复杂组成支配。另一方面，使用WO流作为MD进料，平均流量为14.41 LMH。₄结垢并刺激膜与腐殖酸分子之间的相互作用以形成结垢层，从而导致传热减少和MD通量下降（6％）。乳化的油溶液造成部分孔堵塞，导致通量进一步下降2％。乙二胺四乙酸（EDTA）能够掩盖部分钙离子，从而完全恢复了原始MD通量。在混合FO-MD实验下，MD通量在5.62 LMH和11.12 LMH之间。因此，该新概念已得到验证，可产生相当稳定的FO和MD助焊剂，几乎没有水流，不会造成严重污染，并且不会产生极好的产品水质。