The performance of the reverse osmosis (RO) membrane when reclaiming high fouling produced water at
an elevated pH and temperature is distinctive from more common municipal
wastewaters. This unique process offers an opportunity to better understand RO
membrane salt passage and durability, as well as RO element and system design, at
more extreme conditions. This paper discusses the characteristics of
the RO membrane in a system reclaiming high pH/high temperature produced water
from the oil and gas extraction process. This characterization is based on
laboratory studies, pilot studies, and actual plant performance.
In addition to understanding salt passage when treating high pH water, a better
understanding of membrane longevity is necessary considering the high pH and high
temperature operation associated with this process. Operation at high pH can mitigate
organic fouling of the RO and act as a kind of continuous cleaning, but exposure to
high pH can also adversely affect the integrity of the membrane's polyester support. An
analysis of flow, salt passage, and strength was performed to characterize the effects of
long term exposure of the membrane to these extreme conditions. Includes 6 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 780 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 16 |
| Published : | 11/01/2009 |
