Water purification device

A liquid purification system comprises an inlet (2, Fig. 1.2) for receiving contaminated liquid, wherein the inlet is connected to a first filter 6 and liquid is then passed from the first filter to a second filter 8. The second filter is coupled to an ultraviolet (UV) lamp 4 which irradiates the liquid. Liquid passes from the UV lamp through to a final filter 10, which is the finest filter. The final filter is connected to an outlet (12, Fig. 1.2) for discharge of purified liquid. An electrical supply (14, Fig. 1.2) powers the UV lamp and a pump 16. The pump, which is connected to the filters, is configured to pump the liquid through the system. Liquid flows through the system at a specific flow rate and with a pre-determined turbulence so as to permit complete irradiation of the contaminated liquid. Preferably, the system is portable and may be disposed in a case (20, Fig 1.1).