At the heart of every membrane system is its membrane elements. The life of a system's
membrane elements will have a substantial impact on the financial feasibility for
constructing, operating, and maintaining a membrane facility. Although the life span of
membrane elements is difficult to predict, it is possible to prepare membrane facility
operators and maintenance personnel for eventual scaling and/or fouling of the
membranes, and the associated reactions to operational changes that are appropriate. It is
very important to know when and how to clean. If cleanings are performed at the correct
time, and with the appropriate methods performance can be restored and membrane life
can be extended. This paper discusses proper monitoring techniques that can lead to
proper assessment of cleaning intervals, as well as various cleaning scenarios for various
types of fouling and scaling. Since there is limited collective knowledge of cleaning
regimes at various membrane facilities, this paper also includes survey results from
membrane facilities in the State of Florida regarding pretreatment practices, cleaning
frequencies, cleaning practices, cleaning waste disposal methods, and average life of
membrane elements. This paper also discusses the role of cleaning relative to
membrane warranty issues. Includes figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 250 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 12 |
| Published : | 03/05/2003 |
