Patent ID: 8710459

Claim:
A UV liquid treatment system, comprising: at least one UV treatment unit including: a unit container having a container sidewall, a container bottom extending from the container sidewall and a container interior formed by and between the container sidewall and the container bottom; a liquid distribution head carried by the unit container; at least one liquid inlet passage in the liquid distribution head and disposed in fluid communication with the unit container interior of the unit container; at least one liquid outlet passage in the liquid distribution head and disposed in fluid communication with the unit container interior of the unit container, the at least one liquid inlet passage and the at least one liquid outlet passage disposed generally in 180-degree relationship to each other on opposite sides of the liquid distribution head; a transparent light bulb shield carried by the liquid distribution head and having a shield interior; a descending liquid flow passage formed by and between the light bulb shield and the container sidewall of the unit container, the descending liquid flow passage disposed in fluid communication with the at least one liquid inlet passage; a transition space formed by and between the light bulb shield and the container bottom of the unit container, the transition space disposed in fluid communication with the descending liquid flow passage; an ascending liquid flow passage formed by and between the light bulb shield and the container sidewall of the unit container, the ascending liquid flow passage disposed in fluid communication with the transition space and the at least one liquid outlet passage; an assembly cavity in the liquid distribution head and communicating with the shield interior of the light bulb shield; a UV light assembly having a UV light bulb removably seated in the assembly cavity, the UV light bulb disposed in the shield interior of the light bulb shield; and a power source electrically connected to the UV light bulb of the UV light assembly.