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