The US Bureau of Reclamation, I. Moch & Associates, Inc. and Boulder Research
Enterprises, Inc., sponsored by the American Membrane Technology Association, have
developed a CD ROM for estimating membrane water treatment costs. This disk,
designed for use by end-users, consultants, managers and engineers, permits the
evaluation and comparison of water treatment processes employing reverse
osmosis/nanofiltration, microfiltration/ultrafiltration, electrodialysis and ion exchange.
The program is supplier neutral.
Using flexible indices and adjustable inputs, the CD includes costs equations for
estimating different pre- and post-treatment unit operations such as media filtration;
coagulation and flocculation with PAC, alum, ferric chloride ferrous sulfate or
polyelectrolyte; disinfection by chlorine, monocloramine, ozone and UV; lime/soda
softening; electrical, including energy recovery, and chemical consumptions and various
intake and outfall infrastructures. A number of water compositions are suggested for
those who do not have actual ion concentrations. Labor and supervision, membrane
replacements, amortization rates and tanks, piping and instrumentation are also included,
thus, permitting calculation of plant capital requirements and operating and maintenance
costs for all commonly employed aqueous separation processes.
A number of these CD ROMs have been released and reports back are that the program
gives reasonable, consistent estimations for plants costs. Specific project numbers, based
on direct site conditions, do require competitive tenders by the buyer.
This paper compares, on a common basis, various seawater cases involving
changes in such items as plant capacity, feed water salinity, system recovery, feed water
source and temperature as an assist in the selection of the least costly project option in
providing potable water to deprived areas. Includes 4 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 8.2 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 15 |
| Published : | 03/05/2003 |
