A fluid sterilizing device includes a first reaction chamber, a second reaction chamber, a communication chamber and a light source. The first reaction chamber is connected to a fluid inlet. The second reaction chamber is connected to a fluid outlet. The communication chamber is connected the first reaction chamber with the second reaction chamber. The light source is configured to emit sterilization light to enter the first reaction chamber and the second reaction chamber. The fluid inlet allows a fluid to enter the first reaction chamber, the communication chamber allows the fluid to pass through and enter the second reaction chamber, and a flow velocity distribution of the fluid in the second reaction chamber is different from that of the fluid in the first reaction chamber.

A system, method, and assembly for controlling a power supply for at least one ultraviolet lamp where at least one ultraviolet lamp uses input received from at least one sensor of at least one ultraviolet lamp to measure a characteristic of the at least one ultraviolet lamp and, if based on that at least one sensor, the at least one ultraviolet lamp determines that at least one characteristic of a power supply operatively coupled to the at least one ultraviolet lamp should be changed, generates a command for that power supply to modify that at least one characteristic either by modulating its output or adjusting an output level.

An embodiment provides a lamp apparatus, including: at least one filament; an amount of amalgam; a heat-sink assembly connected to the lamp apparatus; and at least one control circuit comprising a heating element and a temperature measurement element connected to the at least one filament, wherein the control circuit varies the electrical power delivered to the heating element, thereby controlling an internal temperature of the lamp apparatus relative to a temperature set point. Other aspects are described and claimed.

The present application discloses a process for removing a substantial amount of phenolic compounds in waste water as solid substances. The present application also discloses an oxidation system for removing a substantial amount of phenolic compounds in waste water by the process of photocatalytic induced polymerization. The oxidation system includes a chemical dosing tank for adding a catalyst into the waste water; an ultraviolet (UV) reactor communicatively coupled to the chemical dosing tank for oxidizing the phenolic compounds into insoluble sediments; and a sedimentation tank communicatively coupled to the ultraviolet (UV) reactor for removing the insoluble sediments from the wastewater. The present application also discloses a process flow for removing the phenolic compounds in wastewater with the said system.

A water dispenser which is connected to a pure water source and used for dispensing pure water includes: an arm mounting unit; a water dispensing gun including a nozzle for discharging pure water; a holding unit for holding the water dispensing gun; and at least two arms connecting the holding unit to the arm mounting unit. The at least two arms constitute a parallel link mechanism in which a trajectory of each arm when the at least two arms move is within the same vertical plane.

A germicidal UV amalgam lamp with an elongated tubular lamp body and at least two filaments located on opposite ends of the lamp body. The lamp body is hermetically sealed with a pinch-sealed portion at both opposite ends, confining a gas volume in which a gas discharge can be produced along a discharge path between the filaments. Each filament has two electrical connectors, each including an internal portion connected to the filament and pinch-sealed into the lamp body. Each connector also includes an external portion located outside the lamp body for electrical connection of the lamp to a controlled power supply. The pinch-sealed portion bears a socket with an electrical temperature sensor and at least two electrical connections mounted to the socket. The at least two electrical connections of the temperature sensor are connected in parallel to the electrical connectors of the filament.

In one aspect, a sterilization apparatus is provided to include a flow channel body comprising an inflow unit configured to provide an inflow channel through which water flows in one direction, a discharge unit configured to provide a discharge channel through which water is discharged, and a bypass channel unit configured to provide a bypass channel through which water bypasses in a different direction from the direction of the water flowing in the inflow unit; a mounting unit formed on the flow channel body and configured to provide an installation space connected to the bypass channel, a UV light emitting unit disposed in the installation space and configured to emit UV light towards the bypass channel; and a holder coupled to the mounting unit and securing the UV light emitting unit inside the mounting unit.

A water purification cap for covering a water bottle is provided. The cap may include a barrel and a shell. The shell may surround a first end of the barrel. The cap may include a charging site. The charging site may be integral to the shell. The charging site may include a positive pole, a negative pole and an RGB ring. The RGB ring may insulate between the positive pole and the negative pole. The RGB ring may display colors that indicate a status of the cap. The cap may include a UV-C LED. The UV-C LED may be proximal to a second end of the barrel. The light emitted from the UV-C LED may be UV-C rays. The UV-C rays may be in the range of 100-280 nanometers. The cap may include a touch sensor. When touched, the touch sensor may activate the UV-C LED.

A method for controlling sterilization of a water purifier according to an embodiment of the present invention includes a housing accommodating components for generating cold water and/or hot water; a water chute which protrudes from a front surface of the housing and includes a water outflow part extending downward; and a light emitting element which is mounted inside the water chute corresponding to an upper end of the water outflow part and emits ultraviolet rays for sterilization, and the method includes when a sterilization mode is started, turning on the light emitting element for a first set time and to emit ultraviolet rays through the water outflow part; and after the lapse of the first set time, turning off the light emitting element for a second set time to stop emission of ultraviolet rays, in which a sterilization cycle is defined as a sum of the first set time and the second set time, in which the sterilization mode is started at the same time when the water purifier is powered on, and in which the first set time is set such that the sterilization mode is performed for one day so that the amount of ultraviolet rays emitted to the outside of the water outflow part is less than 3 mJ/cm.sup.2 during the accumulated on time of the light emitting element.

Filter systems disclosed herein collapse for storage purposes and include mechanisms to continuously fill an upper chamber, allowing it to be smaller and to include more filters. A UVC light in a lower chamber sanitizes water entering therein. Water entering the lower chamber may pass through a quartz tube near the UVC light for sufficient exposure. The UVC light may be cycled between shorter periods of higher intensity and longer periods of lower intensity. A low power source such as a small solar array and/or battery may power the UVC light. A proximity switch may control the UVC light by providing power to the light only when the upper chamber is engaged with the lower chamber which may protect the user from exposure to the UVC light. Sealing mechanisms between the upper and lower chambers, as well as tote mechanisms and an alternative bucket filter system are disclosed.