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HM10255
 
  Operation Results
 
Saudi Arabia, Jeddah 1 Plant and Medina Yanbu ll
Our RO modules "HOLLOSEP®" HM10255 have been used worldwide, especially in the Middle East, and continue to be used in Jeddah 1Phase l seawater desalination RO plant (56,800m3/day), which was the world's largest RO plant at the time of commissioning. This RO plant started operation in 1989.
A new effective disinfectant method called the Intermittent Chlorine Injection (ICI) method was developed for the RO process and has been adopted by this plant.
This ICI method can prevent both bio-fouling and accelerated oxidation of CTA membranes in presence of heavy metals. The Jeddah 1 phase ll plant (56,800m3/day) operated by SWCC used this ICI method and accomplished the great achievement of operating without replacement of membranes for 5 years, performance that was unequaled anywhere in the world. Furthermore, chemical cleaning for the RO membranes was required only once a year. This high reliability accomplishment contributed significantly to the reduction of product water cost.
The specification and flow diagram of Jeddah RO plant are shown Table 1 and Figure 1 respectively.
 
[Table 1] The Specification of Jeddah RO Plant
Plant
Phase I
Phase II
Product Flow Rate
56,800 m3/day
56,800 m3/day
Product Quality(Cl ion)
Less than 625 mg/l
Less than 625 mg/l
Seawater TDS
43,300mg/l
43,300mg/l
RO Module
TOYOBO HM10255: 1480 pcs.
TOYOBO HM10255: 1480 pcs.
Owner
SWCC, KSA
SWCC, KSA
Constructor
MHI
MHI
Consultant
Bechtel
-
Start-up
April,1989
March,1994
 
[Figure 1] Schematic Flow of Jeddah 1 phase II Plant
 
Medina-Yanbu SWRO plant (128,000m3/day) which has been operated by SWCC since 1998, also uses the ICI method. All these plants are producing a high quality permeate water by use of Toyobo RO modules and the ICI method results in lower chemical costs.
Table 2 shows the specification of Medina-Yanbu RO plant.
 
[Table 2] The Specification of Medina-Yanbu II RO Plant
Plant
Medina-Yanbu II
Product Flow Rate
128,000 m3/day
Product Quality(Cl ion)
Less than 250 mg/l
Seawater TDS
43,764mg/l
RO Module
TOYOBO HM10255: 3210 pcs.
Owner
SWCC, KSA
Constructor
MHI
Consultant
-
Start-up
1998
 
 
 
TOYOBO Membrane Products HOLLOSEP
FEATURES

BRACKISHWATER DESALINATION
HA Series

SEAWATER DESALINATION
HR,HM Series
HB Series,HJ
HL Series

Applications of HOLLOSEP
HA Series
HR Series
HM9255
HM10255
HB9155
HB10255SI
HB10255FI