Foam mitigation using a variety of articles, systems, and methods is generally described. According to certain embodiments, surfaces with certain wetting properties can be used to reduce or eliminate the formation of foam from bubble-containing liquids. In some embodiments, a surface with certain wetting properties is configured and/or arranged within bubble-containing liquids such that the surface provides a gaseous fluidic pathway through which gas from the bubbles within the liquid may be channeled to a gaseous environment outside the liquid.

A method of subsiding foam undesirably accumulating on a liquid-surface plane of an associated industrial-process liquid includes designating a foam-depletion zone within which the foam is situated. A set of at least two fluid ejectors is arranged above and peripherally of foam within the foam-depletion zone, from each of which fluid ejectors a foam-subsiding fluid can be selectively ejected under pressure in a spray pattern representable by a spray vector. Each fluid ejector is oriented such that the spray vector associated therewith has a non-zero vertical component of spatial extension directed downwardly toward the liquid-surface plane and a non-zero horizontal component of spatial extension directed (a) parallel to the liquid-surface plane and (b) inwardly toward the foam-depletion zone so that, collectively, spray patterns emanating from the fluid ejectors constrain the foam within the foam-depletion zone for sustained impingement and abatement by the spray patterns.

A method of subsiding foam undesirably accumulating on a liquid-surface plane of an associated industrial-process liquid includes designating a foam-depletion zone within which the foam is situated. A set of at least two fluid ejectors is arranged above and peripherally of foam within the foam-depletion zone, from each of which fluid ejectors a foam-subsiding fluid can be selectively ejected under pressure in a spray pattern representable by a spray vector. Each fluid ejector is oriented such that the spray vector associated therewith has a non-zero vertical component of spatial extension directed downwardly toward the liquid-surface plane and a non-zero horizontal component of spatial extension directed (a) parallel to the liquid-surface plane and (b) inwardly toward the foam-depletion zone so that, collectively, spray patterns emanating from the fluid ejectors constrain the foam within the foam-depletion zone for sustained impingement and abatement by the spray patterns.

A method for producing a sealant includes a weighing and mixing step, a kneading step, a stirring and defoaming step, and a filling step. In the weighing and mixing step, a main component and a curing agent are weighed and mixed together. In the kneading step, the mixture mixed in the weighing and mixing step is kneaded. In the stirring and defoaming step, the kneaded product kneaded in the kneading step is stirred and defoamed. In the filling step, the kneaded product defoamed in the stirring and defoaming step is filled into a container. In the stirring and defoaming step, the kneaded product is stirred under a condition wherein a stirring rotational speed at which the kneaded product is stirred and a stirring time for which the kneaded product is stirred are within a range from a product lower limit value to a product upper limit value.

A method for removing gas from a froth by supplying at least a portion of the froth from a vessel into a housing, providing a flow of fluid through the housing, introducing the froth into the fluid such that at least a portion of the gas in the froth is removed from the froth and entrained in the fluid to form a mixture of fluid and entrained gas and subsequently delivering the mixture to the vessel and/or another location within a processing circuit.

A method for removing gas from a froth by supplying at least a portion of the froth from a vessel into a housing, providing a flow of fluid through the housing, introducing the froth into the fluid such that at least a portion of the gas in the froth is removed from the froth and entrained in the fluid to form a mixture of fluid and entrained gas and subsequently delivering the mixture to the vessel and/or another location within a processing circuit.

A transportable separation apparatus for separating spent materials from oil and gas operations into a primarily solid component, a primarily liquid component and a primarily gas component. The transportable separation apparatus includes a first separation unit disposed on the transportable separation apparatus for receiving spent materials and beginning separation of the spent materials. The transportable separation apparatus connectable to a vehicle to be pulled on commercial roadways when the transportable separation apparatus is in a transportation configuration. The transportable separation apparatus further includes a second separation unit in fluid communication with the first separation unit for further separation of the spent materials. A method of using the transportable separation apparatus to separate spent materials.

A transportable separation apparatus for separating spent materials from oil and gas operations into a primarily solid component, a primarily liquid component and a primarily gas component. The transportable separation apparatus includes a first separation unit disposed on the transportable separation apparatus for receiving spent materials and beginning separation of the spent materials. The transportable separation apparatus connectable to a vehicle to be pulled on commercial roadways when the transportable separation apparatus is in a transportation configuration. The transportable separation apparatus further includes a second separation unit in fluid communication with the first separation unit for further separation of the spent materials. A method of using the transportable separation apparatus to separate spent materials.

A froth coalescing unit for a fluid delivery system for a fluid ejection system, the froth coalescing unit including a coalescing chamber including a sump, an inlet to receive froth into the coalescing chamber, the froth comprising a mixture of fluid and gas, the coalescing chamber to coalesce the fluid from the froth with the coalesced fluid collecting at least in the sump, an outlet to communicate coalesced fluid from the sump, and a fluid level sensor to provide a level over a range of levels of coalesced fluid in the coalescing chamber including in the sump.

A froth coalescing unit for a fluid delivery system for a fluid ejection system, the froth coalescing unit including a coalescing chamber including a sump, an inlet to receive froth into the coalescing chamber, the froth comprising a mixture of fluid and gas, the coalescing chamber to coalesce the fluid from the froth with the coalesced fluid collecting at least in the sump, an outlet to communicate coalesced fluid from the sump, and a fluid level sensor to provide a level over a range of levels of coalesced fluid in the coalescing chamber including in the sump.