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Feedwater Limited
Tarran Way West
Tarran Estate
Moreton
WIRRAL
CH46 4TU
Telephone:
+44 151 606 0808
Fax:
+44 151 678 5459
Registered in
England & Wales
Number 1274270 |
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Case Study
Feedwater support for brewing operations at a midlands brewery
Feedwater Limited have been a supplier to a major Midlands Brewery for the past 10 years. It all started when the former water treatment company were unable to provide a solution to the major site problem of a heavily fouled and corroded glycol system. Feedwater used their patented cleaner CORROSPERSE 84, employed specialist contractors and managed the whole operation to restore the system to full working efficiency in a week-long operation. Following that, Feedwater saved site over £30K/year by recommending a more economical water source for utilities.
Today, Feedwater provide the water treatment and support services to the following systems:
Utilities
- Refrigeration plant cooling towers.
- Glycol System
- Steam Boilers
- MPHW System
• All the chemical and bacteriological monitoring required to satisfy the ACoP (L8) is carried out during weekly visits.
• All chemicals are delivered by FEEDSAFE drum-less delivery, thereby eliminating any chemical handling by site.
• Cooling towers are cleaned and chlorinated at 6 monthly intervals
• Although not part of the contract, Feedwater have audited site’s compliance with the ACoP to help them keep on the right side of the law.
• Regular reviews are held and personnel are trained in awareness of Legionella and the appropriate legislation.
On-line Disinfection of the Water Supply
All the site water is treated with ACTIV-OX® , which is Feedwater’s unique form of chlorine dioxide. Site needed to have maximum assurance of good water quality at this new site and therefore selected ACTIV-OX to provide:-
a) Effective bacteriological control
b) No taste or taint in the treated water or product.
c) A safe dosing system and chemical storage.
d) Maximum compliance with COSHH regulations.
What is ACTIV-OX?
ACTIV-OX is a unique means of providing chlorine dioxide. Chlorine dioxide itself is not new. The city of Paris has used it since WWII to disinfect its water supply. What is new is the means of generating it. Chlorine dioxide is an unstable gas and has to be generated at the point of use. This is traditionally done using chemicals, one of which is a strong acid, together with an elaborate dosing and chemical handling system, better suited to heavy industry or a municipal works. Feedwater have reformulated these chemicals so that only stable, non-hazardous, food-grade liquids are used in a reliable, fail-safe dosing system.
The two chemicals, ACTIV-OX 20 and ACTIV-8 are injected direct from their stock tanks, via conventional metering pumps, contained within an ACTIV-OX Dosing Unit. The pumps are controlled by signals from a water meter installed on a by-pass to the main water line which ensures that the correct dosage, normally 0.5 ppm as total oxidant, is applied at all times. The chemicals are injected via a mixing block installed in the water line to produce the chlorine dioxide at the point of injection.
The dosing unit has a PLC controller which monitors usage and operates alarms and a fail-safe system. It ensures that the maximum dosage of 0.5ppm, that the UK Drinking Water Inspectorate
approves for treating potable water, is maintained.
The Results
As can be seen from the charts (see link to the right to download), after the initial period when the chlorine dioxide was being consumed in cleaning bio-film from the pipework, total bacteriological counts in the treated water supplies are now maintained at a very low level, thereby making a significant contribution to consistent product quality.
Feedwater Service
Feedwater support the supply of their equipment and chemicals with regular service to ensure that results are optimised and that the dosing plant is maintained at maximum efficiency and reliability.
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