This paper summarizes major design and operational issues of large scale microfiltration/ultrafiltration (MF/UF)
projects. The world's largest are on the order of 100 mgd (378,000 m<sup>3</sup>/d). The discussion
is highlighted by examples from two projects in Minneapolis with a combined
capacity of 160 mgd (606,000 m<sup>3</sup>/d) and two in Singapore, 120 mgd (454,000 m<sup>3</sup>/d).
In some ways, design and operational issues with world-scale MF/UF plants are similar
to those for smaller facilities; however, even though the process is modular, well-engineered
larger plants are not simply multiples of the smaller ones. Important issues
include prevention of pressure surges and other hydraulic stresses, plant hydraulics,
including the option of using gravity to optimize pumping costs; pilot programs; dynamic
multi-train interaction; control philosophy; and special considerations at
commissioning/start-up. A discussion of operations includes checklists of proactive
maintenance tasks and troubleshooting to minimize the occurrence of problems and
facilitate resolution.
Includes tables.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 240 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 9 |
| Published : | 11/15/2004 |
