BWRO
Reverse osmosis systems, which the most general definition is, removal process of the anion and cation by an advanced filtration method which the highest technologies are used as a water treatment system. Water is forced to pass from a semi permeable membrane sheet which has 5 angstrom size pores with diameters by applying high pressure. Water flow from the surface to the center of the membrane.
During this pass, organic and inorganic substances, heavy metals, projects veins, bacteria, etc. in the structure of the water retains by the membrane and discharges from the reject line. %95 - %99 Purified water can be collected to a tank through permeate line. System flush before the stop procedure and before the start procedure in order to clean the surface of the membrane. In this type of systems, for longer and effective use of membranes, pre-filtration and dosing systems must be designed and installed correctly.
Automation is always most important point for the US-RO systems. There are 3 units of pressure transmitter measuring the pressure continuously. One unit is for low pressure at inlet, one is for high pressure after the high pressure pump and one is for the drain line. In addition to these pressure switches, conductivity meter, permeate and drain flowmeter, dosing systems level switches and tank level switches are controlled from Siemens PLC are in standard manufacturing scope.
Standard US-RO systems we use; Filmtec or LG membranes, Grundfos or Lowara pumps, Siemens PLC, Codeline pressure vessels, Wika or Danfoss pressure switches and Proval control valves.
Sample System US-RO 30
Pre-chlorination Dosing System Seko 1 duty
Raw Water Feed Pumps Grundfos, SS 316, CRN Series 1 duty + 1 stand-by
Automatic Sand Filter Ussu, D : 1900 1 duty
Automatic Carbon Filter Ussu, D : 1900 1 duty
Antiscalant Dosing System Seko 1 duty
Cartridge Filter 15 x 40 , SS316 1 duty
Membranes LG 440 30 duty
Membrane Vessels Codeline, 600 psi 5 duty
High Pressure Pumps Grundfos, SS 316, CRN Series 1 duty
Piping SS 316 for HP, uPVC for LP
Flow Meters 6 40 m3/h, rotameter type 2 duty
Conductivity Meter GF+ 0 - 2000 micros/cm 1 duty
Manometers 0 6 bar and 0 20 bar 10 duty
Pressure Switches Wika/Germany 3 duty
CI P Pump Grundfos, SS 316, CRN Series 1 duty
CIP Tank 4 000 Liter PE 1 duty
Post-Chlorination Dosing System Seko 1 duty
Control Panel, MCC and PLC Siemens PLC 1 duty
Start-up Chemicals All required chemicals for 1 week