Chlorine on demand
15 Jan 2000
The storage of chlorine on site poses problems for many installations, some of which need to be CIMAH registered as a result. But now these problems can be eliminated with an `on-demand' chlorine generation system launched at last month's water industry IWEX show by Capital Controls.
At the heart of the ElectroChlor generator are electrolytic cells in which hydrochloric acid is broken down to generate chlorine gas for conventional dosing operations. Depending on the model, between one and 20 cells are employed - each designed on a `fit and forget' basis to cope easily with the vacuum mode of operation. The generator is said to need less maintenance than a mechanical equivalent and has a `pure' electrical control system with no motorised valves or other moving parts.
All three available systems, large, medium and mini, have a turndown ratio of at least 10:1, with outputs starting at 0.075kg to 0.75kg of chlorine a day for the mini-system, up to 500kg a day for the largest fixed-installation units. As shown here, the active element of the mini-system is only 300x300x100mm.
The medium system can produce 0.3 to 45kg a day and covers a large proportion of the existing market.
