Grewa-U

The Grewa-U ultrafiltration system provides complete point of entry (PoE) and Point of Discharge (PoD) filtration in a simple yet effective manner to reduce turbidity, particulates and cysts, for safer, cleaner water. The system incorporates a technology using an Ultrafiltration membrane to remove impurities <0.5 microns.

An electronically controlled flushing system is the core of this system. This maximises membrane capacity and service life. It operates such that self-cleaning back-flush cycles are initiated when the programmed capacity of the membrane is reached. Considering the importance of Energy Consumption, this system also incorporates the methodology of consuming power only for flushing. This ensures continuous operation even in case of Power Outages, Since interruptions could otherwise jeopardise the integrity of the membrane and their ability to provider safer, cleaner water. At times to facilitate cleaning CEB (Chemically Enhanced Backwash) is done to improve the longevity of the membrane.

Critical system diagnostics are a standard feature of this system. This helps in optimizing flushing cycles and helps to monitor performance in a real-time mode.

Grewa-U can be safely used in applications to solve water problems including high turbidity, suspended solids and certain microbiological contaminants.

Electronically Programmed Control Unit

Bright digital display with indicator based user panel
Diagnostics of critical parameters
Built-in battery backup to maintain time of day, making it a Real-time solution
All parameters can be Timer programmed and adjusted
Optional Remote Monitoring Facility

Treated Water parameters
(Under ideal condition for Tertiary Treatment of Sewage)

Sr. No	Parameters	Inlet Water	Treated Water
1	pH	6.5-8.0	6.5-8.0
2	TSS	<30 PPM	<2 PPM
3	BOD	<20 PPM	<5 PPM
4	COD	<100 PPM	<50 PPM

N.B: Adequate pretreatment is considered on a case to case basis

Benefits of Grewa-U

Reduces Turbidity, cysts and other particles down to 0.5 micron size
Built-in protection during power outages or intermittent power
Ideal as tertiary treatment of sewage and wastewater
High surface area
Modular, Flexible and Scalable
Maximum Height: 2.2m
Minimum installation work at site
Remote Monitoring and Operation can be included (if required)
Minimum downtime for replacement of membranes

Applications

Colloidal Silica Removal
Tertiary Treatment of Grewa-R or any other STP
Removal of suspended solids
Reduction of E-Coli, cysts and viruses
Control of SDI and thus effective pre-treatment to RO

Specifications

Model	Capacity m3/day	Skid Dimensions (LxBxH) m
U1010A	10	1.4x1.2x2.0
U1025A	25	1.6x1.2x2.0
U1050A	50	1.6x1.2x2.0
U1075A	75	2.0x1.5x2.0
U1100A	100	2.3x1.8x2.0