A slurry injection system having a plurality of clear fluid pumps receiving clear fluid from a low pressure clear fluid manifold and pressurizing the clear fluid into high pressure clear fluid and communicating the high pressure clear fluid into the high pressure clear fluid manifold. A blender unit having low pressure slurry therein. A mixer receives clear fluid through a first valve. A slurry pressurizer in fluid communication with the high pressure clear fluid manifold through a second valve. The slurry pressurizer forms high pressure slurry by pressurizing the low pressure slurry from the blender unit using high pressure manifold clear fluid that is communicated to the mixer and communicates low pressure fluid to the low pressure clear fluid manifold. The mixer mixes the high pressure slurry and clear fluid from the first valve to form a mixture that is communicated to a slurry injection site.

A system and method for injecting slurry includes first and second elongated tanks. Tanks include pipes extending therefrom. Slurry valves and clear fluid valves are fluidically are coupled the first and second elongated tanks. Slurry valves have a first state communicating high pressure slurry from a second volume of the first tank to the injection site and communicating low pressure slurry to a fourth volume of the second tank, and a second state communicating low pressure slurry to the second volume and high pressure slurry from the fourth volume to the injection site. The clear fluid valves communicate pressurized clear fluid to the first volume of the first tank and communicate low pressure clear fluid from the third volume of the second tank in a first state and communicating low pressure clear fluid to the first volume and pressurized clear fluid to the third volume in a second state.

A system and method for injecting slurry includes a first elongated tank comprising a first end having a first volume and a second end having a second volume, said first volume separated from the second volume, a first pipe having a first end external to the first elongated tank receiving clear fluid and a second end coupled to the first volume and a plurality of slurry valves fluidically coupled to the first elongated tank. The plurality of slurry valves have a first state communicating high pressure slurry from the second volume to the slurry injection site and a second state communicating low pressure slurry into the second volume. A plurality of clear fluid valves are fluidically coupled to the first elongated tank and communicate high pressure clear fluid to the first volume in the first state and communicate low pressure clear fluid from the first volume in the second state.

A liquid ejection device for a vehicle washing system includes a reservoir volume, a first supply line coupled upstream to the reservoir for supplying a first liquid with a first supply rate and a second supply line coupled upstream to the reservoir for supplying a second liquid with a second supply rate. The device further comprises a removal line coupled downstream to the reservoir with a blocking device for blocking liquid flow through the removal line, and a detection unit for detecting liquid volume in the reservoir and a mixing ratio of the liquids introduced into the reservoir; and a removal device for ejecting the liquid found in the reservoir through an ejection element coupled to the removal line. In addition, the device comprises a control unit which is coupled to the detection unit and the removal device and is set up to start an ejection process by the removal device upon reaching a predetermined liquid volume and a predetermined mixing ratio.

A biogas blending and energy content verification system and method for controlled enhancement of a biogas feedstock stream energy content profile by selective sampling and analysis of the biogas feedstock stream and controlled injection of a refined gas of a known, higher energy content into the biogas feedstock stream to produce a blended biogas having an augmented energy content profile meeting or exceeding a pre-established minimum to meet end user requirements.

Systems and methods are described for dissolving ammonia gas in deionized water. The system includes a deionized water source and a gas mixing device including a first inlet for receiving ammonia gas, a second inlet for receiving a transfer gas, and a mixed gas outlet for outputting a gas mixture comprising the ammonia gas and the transfer gas. The system includes a contactor that receives the deionized water and the gas mixture and generates deionized water having ammonia gas dissolved therein. The system includes a sensor in fluid communication with at least one inlet of the contactor for measuring a flow rate of the deionized water, and a controller in communication with the sensor. The controller sets a flow rate of the ammonia gas based on the flow rate of the deionized water measured by the sensor, and a predetermined conductivity set point.

In a rapid stirrer that stirs sludge and a flocculant in a tank with a stirring blade, the rotation speed of the stirring blade is increased at a set rate with an increase in the amount of charged sludge, the rotation speed of the stirring blade is reduced at the set rate with a decrease in the amount of charged sludge, and flocculated flocs having a fixed floc diameter are stably generated even when operating conditions change so as to fluctuate the amount of charged sludge.

A continuous process for dispersing a particulate solid material in a liquid comprising the steps of a) dosing a particulate solid material feed stream via a particulate solid feed line (1) into a mixing chamber (2), b) simultaneously dosing a liquid feed stream via a liquid feed line (3) into the mixing chamber (2), wherein at least one of the feed streams additionally comprises an organic film-forming binder, c) simultaneously exerting a shear force on the content of the mixing chamber (2) sufficient to mix the particulate solid material and the liquid to form a mixture of particulate solid in the liquid, and d) simultaneously exerting a shear force to the mixture of particulate solid in the liquid sufficient to reduce the particle size of the particulate solid material in a dispersing chamber (4) to form a particulate solid material dispersed in the liquid, and e) simultaneously removing a liquid product stream of particulate solid material dispersed in the liquid from the dispersing chamber via a liquid dispersion outlet line (5), wherein the mixing chamber (2) and the dispersing chamber (4) are one single chamber (2, 4), wherein the particulate solid material is in the form of powder, granules or pellets.

A centrifugal blower system has internal gas mixing capability.

A drinking vessel includes a fluid reservoir for containing a first fluid, a first tube extending from the fluid reservoir to an outlet at a distal end of the first tube and configured to carry the first fluid to the outlet responsive to the user drinking from the drinking vessel, a mixing chamber positioned along the first tube between the fluid reservoir and the outlet, one or more pumps fluidly coupled with the mixing chamber and configured to dispense one or more additives into the mixing chamber to be mixed with the first fluid, an airflow sensor configured to detect that the user is drinking from the drinking vessel, and a controller configured to activate at least one of the one or more pumps according to a selected dosing profile responsive to detecting that the user is drinking from the vessel.