A reactor system may comprise a housing; and a condensation catalyst layer within the housing comprising a condensation catalyst comprised of at least one of a base-substituted zeolite, a stannous salt, or a phosphonitrile chloride. The condensation catalyst layer may be configured to catalyze a condensation reaction of a plurality of silane diols in water flowing through the housing into a plurality of siloxanes.

A pollutant reduction device and method are provided. The pollutant reduction device comprises: an exhaust gas pipe for discharging exhaust gas of a combustion engine; a cleaning water supply pipe for supplying cleaning water; a scrubber for spraying the cleaning water, which is supplied through the cleaning water supply pipe, at the exhaust gas flowing in through the exhaust gas pipe; and a cleaning water discharge pipe for discharging the cleaning water inside the scrubber and supplying the same to a ballast water tank.

A peristaltic pump system has a pump tube and a pump rotor engaging the pump tube. The pump rotor is drivable to rotate to move a pump fluid through the pump tube from a pump inlet to a pump outlet. A motor drives the pump rotor to rotate. The motor includes a motor tube and a motor rotor to be driven to rotate by a motor fluid moving through the motor tube from a motor inlet to a motor outlet. A urine treatment system and method are also disclosed.

A combination marine exhaust gas scrubber and ballast disinfection system using seawater/water surrounding a ship to reduce/scrub smoke-stack emissions and produce a disinfected seawater/water for ballast, which can then be periodically or continually discharged back into the seawater/water body without concern for the spread of non-invasive species.

A vehicle system includes a tank for storing an aqueous solution; and a UV light decontamination module configured for decontaminating aqueous solution stored in the tank. The UV light decontamination module is arranged in a wall of the tank. The UV light decontamination module includes a light source compartment which is accessible from an external area outside of the tank; and a light transmission member configured to transmit UV light from the light source compartment to a liquid space in fluid communication with aqueous solution stored in the tank. The light source compartment includes a light source to emit UV light through the light transmission member to the liquid space.

An ultraviolet (UV) light disinfection system for treating water prior to its delivery to a water usage device. One or more UV light emitting diodes (LEDs) are positioned within a water system floor interface in order to expose water flowing through the system to germicidal light treatment.

A processing device for grey water for a rail vehicle includes a grey water container, a grey water supply in an inlet region, a drain for processed grey water in an outlet region, and a slotted filter between the inlet and outlet regions that has at least one movable sliding member which touches the base of the grey water container in a lowered position and is lifted off the base in a raised position. The base of the grey water container rises from the inlet region to the outlet region. A cleaning outflow is disposed in the inlet region on the base side. A fresh water supply for supplying fresh water is disposed in the outlet region. A rail vehicle having at least one processing device for grey water for a WC module or toilet bowl is also provided.

Methods and systems for processing production fluid include embodiments for removal of injected chemicals from the production fluid. An embodiment of a method includes receiving production fluid from a borehole in an earth formation, the production fluid including surfactants injected into the earth formation to stimulate production of hydrocarbons therefrom. The method also includes processing the production fluid to separate the production fluid into at least an oil phase and produced water, introducing a treatment fluid from a treatment fluid source into at least one of the production fluid and the produced water, and removing the surfactants from at least the produced water. The treatment fluid includes a concentration of multivalent cations, the multivalent cations configured to reduce water solubility of the surfactants.

Disclosed herein is an aircraft water supply system. The water supply system comprises a water tank for storing potable water; and two or more faucets that are each connected to the water tank and configured to dispense the potable water on demand in response to a user actuating the faucet. Each of the two or more faucets includes a respective filtering unit. In embodiments the filtering units are integrated within the faucets and comprise three stages of filtering, namely (i) a coarse filtering stage; (ii) a first filtering stage comprising a hollow fiber filter and/or one or more ion exchange resin filters; and (iii) a second filtering stage comprising activated carbon.

A method for operating an on-board water supply and distribution system of an aircraft for supplying water includes a central tank, consumer assemblies with a supply device and a buffer tank, pump operable in a supply mode and reverse mode, filter device, and high-pressure conduit system. The central tank connects to the pump's upstream side. The conduit system connects the downstream side and consumer assemblies. The pump in supply mode delivers water from the downstream side to the buffer tank. In reverse mode, the pump can convey water from the downstream side to the upstream side. The method includes operating the pump in supply mode so water from the central tank goes to a consumer assembly in a first time interval to fill the buffer tank, and operating the pump in reverse mode in a second time interval so water from the buffer tank passes through the filter device.