i-MBRSide-stream, in vitro MBR system for Water Treatment
About i-MBR Modules
PHILOSEP i-MBR is in vitro, cased and decompression type membrane modules. It is different to other sub-
mergible modules in the way that they are not submerged into a tank but inject drain water into the modules,
circulate water, and decompress filter.
PHILOSEP i-MBR is applied to MBR processes and it is manufactured in packaged systems. i-MBR is easier to
maintain and compact compare to other submergible modules.
How i-MBR Works
i-MBR system, in vitro MBR system, maintains stable permeation
rate in a low pressure by decompressing at filtering part of modules
to lessen contamination when operated in a long-term.
Braid, a firm fiber, is the support of the mem-
branes that shows high durability and it prevents
snaps even in a long-term aeration.
Even pore size means excellent filtration, high
pressure-resistant, elastic and fast recovery from
a long-term operation.
Features of RCM Membranes
i-MBR Flow diagram
Applications of i-MBR Modules
1. Treatment of Wastewater from Living-stock or human waste
which is high in viscosity, total solids, or MLSS.
2. Wastewater Treatment of low MLSS and low loading
3. When installing membranes in small or low places
4. When installing indoor and user-friendly automatic system is
wanted
5. When installing system while considering expanding in future
6. When the place is not possible to expand in space
Process Submergible MBR system i-MBR system
Installing and
Exchanging
Hoists or chain blocks are needed when in-stalling and the con-structions are limited on story heights
Membrane modules are installed outside of aeration tanks. No need for hoists, chain blocks or guides.
Installing Area
Wider installation space is needed be-cause the pumps and pipes of MBR are placed outside of the system
Pumps, pipes, and measuring instru-ments are places in the system
Chemical Cleaning
Microorganisms are in-fluenced by chemicals and the modules have to be cleaned outside of the system. There-for, cleaning tanks and manpower are needed.
Chemical injecting pump is placed inside of the system. No need to carry modules but only simple opera-tion of pump can do chemical cleaning
Aeration Efficiency
Aeration efficiency is low because the membranes are sub-merged in wastewater and this affects to long-term operation
Patented aeration port is installed to prevent contaminants to build up. It shows stable performance in a long term
Environ-ment
Unpleasant odor oc-curs from aeration in undergrounded sys-tem
Special lids or active carbon in each tanks prevent unpleasant odor to emit
Scale up
Civil construction is needed when exten-sion of capacity is wanted
Membrane modules can be continuously connected whenever the extension of ca-pacity is needed
Features of i-MBR Modules spider-web design inside of the modules prevents them from contaminants to
stick.
The modules have built-in Aerators and this makes the system designing
convenient.
The insertional housings make aeration extra effective.
Available to Back-wash, CEBW and CIP periodically or intermittently.
The modules have hydrophilic PVDF separation membranes that show excel-
lent chemical-resistance. .
.Comparison of submergible MBR and i-MBR system
Item i-MBR 14
Performance
Filtration Capacity
Filtered Water SS
1.1 ~ 3.3 GPM (5 ~ 15 m3/d)
< 5ppm
Membrane & Module
Membrane materials
Materials of supports
Pore size
Membrane area
Membrane dimension
Tensile strength
Hydrophilic PVDF (Braid Reinforced Capillary membrane)
Polyester
0.4㎛323 ft2 (30 m2)
ID 0.039“ (1.0mm), OD 0.09” (2.3mm)
40~50 kgf/fiber
Operation Data
Designed flux
Water circulation rate
Max. inlet pressure
Air inlet flow
Air inlet pressure
Normal operation pressure
Max. operation pressure
Max. operation temperature
pH range
Operation cycle
Cleaning chemicals concentration
and cycle
20 ~ 50 GFD (10 ~ 40 L/m2·h)
4m3/hr·module
0.25 kg/cm2
24 ~ 30 Nm3/hr·module
4.5 psig (0.35 kg/cm2)
50~200mmHg (0.06~0.26 kg/cm2)
< 400mmHg (0.53 kg/cm2)
104 ℉ (40℃)
2.0~12.0
5~7 min On, 3~5min Off
NaOCl 3,000ppm once 3~6 month
Module size Φ437mm x L2,152 mm
i-MBR Module Specification