QUA’s FEDI®-Rx proved a perfect retrofit for other manufacturer’s EDI stacks and has been delivering high purity, pharmaceutical grade water consistently for the last 4 years, irrespective of variation in feed water conditions.
Background
The clients laboratory has been providing quality back-end support to the pharmaceutical industry at large since its inception in 1988. Located at Pithampur, India, the laboratory has been committed to strategic research and delivering a complex range of chemistries that are globally benchmarked.
The client had an existing purified water system to produce USP grade water with conductivity less than 1 μS/cm. The system consisted of a softener, reverse osmosis system and electrodeionization (EDI) as the final polisher to achieve water conductivity as per USP requirement.
The client’s existing electrodeionization system, with another manufacturer’s EDI, was not able to deliver consistent product water quality due to variable feed water conditions. The feed water quality was fluctuating, with conductivity at times close to 30 μS/cm. As a result their production was adversely affected and they started exploring other EDI options. The client required
- An EDI which could deliver consistent product water quality on a continuous basis irrespective of variation in feed water conditions.
- An EDI that would be an easy retrofit to replace the existing unit.
- They wanted the EDI with least lead time for delivery.
Additionally, service was a key issue as the customer was not satisfied with the existing EDI manufacturer’s support, and expected their new EDI supplier to understand the problem and work closely to resolve quality concerns as soon as possible.
