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Central Treatment Systems

ISOLUX™ adsorption employs both ion exchange and chemisorption reaction mechanisms. This combination provides for excellent affinity for the arsenate and arsenite ions while creating very insoluble metal arsenic salts.

ISOLUX treatment systems are self contained, designed for rapid deployment, without adverse impact on existing operations and infrastructure. These systems require no backwash, no traditional pH adjustment, no media channeling and no confined space entry. The Central Treatment System has a low minimum space requirement making it suitable for space constrained installations.

Plus, ISOLUX consistently demonstrates no hazardous waste generation. The arsenic adsorbed on ISOLUX remains fixed, even in acidic or alkaline environments. The media is USEPA TCLP tested for disposal as non hazardous waste via landfill. ISOLUX media is NSF Section 61 certified for use in drinking water systems.

Below is a table detailing the features of the MEL Chemicals Central Treatment System. Several of these systems can be combined for higher flow rate requirements. Further details of the system can be found in the Central Treatment System datasheet. Operation and Maintenance manuals for the Central Treatment System to be operated as a redundant or non redundant system are also available for download here.


Central Treatment Systems
Maximum Design Flow Rate 75 gpm (284 Lpm)
Cartridge Size 42" (105 cm)
Number of Cartridges 9 per vessel 
Media Bed Residence Time 27 secs 
Pressure Drop <30 psi (<206 kPa)
Typical Media Life* up to 4,800,000 gal (up to 18,175,000 L)
Cartridge Disposal via landfill
Module Dimensions Width Length Height Vessel Outside Diameter
48" (120 cm) 48" (120 cm) 60" (150 cm) 20" (50 cm)
Number of Vessels 2
Vessel Description 2, 100 psi (689 kPa) rated carbon steel with NSF rated epoxy coating
Estimated Module Weight As Shipped (dry, no media) In Operation
3200 lbs (1455 kg) 1500 lbs (682 kg)
External Piping 2" (5 cm) Sch. 80 PVC Slip
Outlet Connection 2" (5 cm) PVC Slip
Inlet Connection 1.25" (3.13 cm) NPT
Booster Pump with flow regulator included Yes
Electrical Requirements 3 hp, 230/260 V, 3 ph
Pre-Filter 1-micron, bag type




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