A UV reactor for disinfecting water. The UV reactor may include a cooling chamber in which heat from a UV source may be transferred to the water flowing through the UV reactor. The UV reactor may include driver circuitry operable to determine status information, such as health, of the UV source. The UV reactor may include a gas discharge path operable to substantially prevent accumulation of gas within a water treatment chamber.

A fluid treatment tank for an aeration filter has an air blocker separating a chamber in fluid communication with a control valve of the filter from a pocket of air above the liquid in the tank and the control valve. The air blocker contains a volume of liquid that acts as a trap that prevents or at least inhibits air in the pocket from backing up into the chamber. Contact between the control valve and air is dramatically reduced. The air blocker may comprise a baffle that directs any air flowing through the air blocker downwardly and then back upwardly before the air can escape the air blocker.

The present invention provides a method of managing operation of a point-of-use fluid treatment arrangement for providing treated fluid to at least one end user. The point-of-use fluid treatment arrangement comprises a fluid supply source provided by an operator, at least one fluid outlet for providing fluid to an end user, in which the at least one fluid outlet is in fluid communication with and spaced downstream from a point of supply of the fluid supply source, at least one point-of-use or point-of-entry fluid treatment device located at or adjacent a corresponding fluid outlet, and at least one communication unit.

A method of removing sludge from a drain pipe used for cleaning a drain pipe comprises a piling step, a platform setting step, a drilling path planning step, a coil deploying step, a conveying bracket lifting step, a guiding step, a drilling step, and a cleaning step. In the piling step, a plurality of supporting columns are provided around the opening of the drain pipe. In the platform setting step, a work platform is provided on the plurality of supporting columns. In the drilling path planning step, a drilling path is planned. In the coil deploying step, an induction coil group is placed above the drain pipe. In the conveying bracket lifting step, a conveying bracket is hung by lifting equipment so that the conveying bracket is aligned with the opening of the drain pipe. In the guiding step, the drill bit is guided to the opening of the drain pipe using the conveying bracket. In the drilling step, the drill bit is controlled to drill into the clogged bulk in the drain pipe. In the cleaning step, the waste generated by drilling is cleaned.

Apparatus and methods for use in water processing include housing sections that house in their interiors water treating membranes, the respective interiors being separate from one another. A distributor chamber for containing a flow of water to be treated conveys water to be treated from a feed inlet and distributes the water to be treated into the interiors of the housing sections. A collector chamber for collecting treated water from the interiors of the housing sections is provided to communicate a merged flow of the treated water to an extraction outlet. The device may be employed in subsea systems or in a topside water processing system

Water softening device includes water softening tank and neutralizing tank. Water softening tank softens raw water containing a hardness component by weakly acidic cation exchange resin. Water softening tank includes first water softening tank and second water softening tank. Neutralizing tank neutralizes the pH of softened water that has passed through water softening tank by weakly basic anion exchange resin. Neutralizing tank includes first neutralizing tank and second neutralizing tank. Water softening device is configured to cause raw water containing a hardness component to flow through first water softening tank, first neutralizing tank, second water softening tank, and second neutralizing tank in this order.

Systems and methods are provided for the removal and disposal of radium form an aqueous medium. The systems and methods include the removal of radium from a source by contact with either natural or synthetic zeolite. The spent zeolite is monitored for radiation levels and replaced with fresh zeolite when the level of radioactivity reaches approximately 9,000 pCi/g. Spent zeolite is disposed of at a low-level radioactive waste site. A system for monitoring and maintaining radium removal and disposal by an off-site provided is also disclosed.

Disclosed herein are phosphoester anticorrosion compositions comprising an adduct of an alkylphenol ethoxylate phosphate ester with 1,3,5,7-tetraazaadamantane. The adducts are storage stable neat or in a solvent. The adducts are suitably added at about 0.5 ppm to 500 ppm by weight or by volume to a water source comprising one or more corrodents to inhibit corrosion of metal surfaces contacting the water source. The phosphoester anticorrosion compositions are as effective or more effective at inhibiting corrosion than conventional sulfur-based corrosion inhibitors when compared on a weight or volume basis.

Systems and related methods for purging air burst supply piping of accumulated water prior to delivering pulses of pressurized air to an interior of a screen intake through the air burst supply piping. The systems and methods can include a purge compressor delivering a purging air supply at a head pressure slightly above a head pressure of water in the air burst supply piping, wherein the head pressure of the water is equivalent to a depth at which the intake screen. The system and methods can also include a purge line arranged in a parallel orientation to an air burst supply line, wherein both the purge line and the air burst supply line are operably coupled to a pressurized air tank.

A method for determining a concentration of a chemical of interest in a recirculating analyte system includes the steps of selecting a first indicator threshold, measuring the flow rate of the recirculating analyte system, controllably adding a known amount of reagent to the recirculating analyte system at an known flow rate, repetitively measuring an indicator of the recirculating analyte system downstream from the addition of the reagent, and computing the concentration of the chemical of interest of the recirculating analyte system when the indicator measurement crosses the indicator threshold.