1. i-MBR Side-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 submergible 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.

2. Braid, a firm fiber, is the support of the membranes 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

3. ProcessSubmergible MBR systemi-MBR system Installing and Exchanging Hoists or chain blocks are needed when installing and the constructions 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 because the pumps and pipes of MBR are placed outside of the system Pumps, pipes, and measuring instruments are places in the system Chemical Cleaning Microorganisms are influenced by chemicals and the modules have to be cleaned outside of the system. Therefor, cleaning tanks and manpower are needed. Chemical injecting pump is placed inside of the system. No need to carry modules but only simple operation of pump can do chemical cleaning Aeration Efficiency Aeration efficiency is low because the membranes are submerged 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 Environment Unpleasant odor occurs from aeration in undergrounded system Special lids or active carbon in each tanks prevent unpleasant odor to emit Scale up Civil construction is needed when extension of capacity is wanted Membrane modules can be continuously connected whenever the extension of capacity 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 excellent chemical-resistance... Comparison of submergible MBR and i-MBR system

4. Itemi-MBR 14 Performance Filtration Capacity Filtered Water SS 1.1 ~ 3.3 GPM (5 ~ 15 m 3 /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 ft 2 (30 m 2 ) 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/m 2 ·h) 4m 3 /hr·module 0.25 kg/cm 2 24 ~ 30 Nm 3 /hr·module 4.5 psig (0.35 kg/cm 2 ) 50~200mmHg (0.06~0.26 kg/cm 2 ) < 400mmHg (0.53 kg/cm 2 ) 104 ℉ (40 ℃ ) 2.0~12.0 5~7 min On, 3~5min Off NaOCl 3,000ppm once 3~6 month Module sizeΦ437mm x L2,152 mm i-MBR Module Specification