A tank trailer may include a plurality of hoppers and a tension bar assembly extending between the hoppers.

A tank trailer may include a plurality of hoppers and a tension bar assembly extending between the hoppers.

Embodiments of the present disclosure include systems and methods for collecting, storing, separating, and disposing of waste material from an oil and gas well site in order to enhance payload efficiency. An embodiment of a method, for example, may include introducing a waste material into an enhanced-payload mobile vessel positioned at the oil and gas well site, the waste material selected to include one or more of a sludge waste material, a solids-laden wastewater material, and a dry waste material. The method may further include transporting the waste material when positioned in the enhanced-payload mobile vessel along roadways to an off-site waste management facility. Additionally, the method may include dumping the waste material from the enhanced-payload mobile vessel by a site-based lifting mechanism into a receiving vessel at the off-site waste management facility thereby to dispose of the waste material at a reduced transportation cost.

A system and method of air pollution control for liquid vacuum trucks is disclosed. The system includes a container comprising a cylindrical shell, wherein the cylindrical shell defines an internal volume of the container, and a barrier. The barrier includes a disk slideably disposed within the interior volume of the container, the disk subdividing the interior volume of the container into a first portion and a second portion, and a seal disposed about a circumference of the disk and in sealing contact with an interior surface of the cylindrical shell. The first portion is configured to sustain an internal pressure in a predetermined range; and the second portion is configured to receive a waste material. When the internal pressure is at a maximum value of the predetermined range, the disk has a deflection less than a predetermined deflection at which the sealing contact is compromised.

Embodiments of the present disclosure include systems and methods for collecting, storing, separating, and disposing of waste material from an oil and gas well site in order to enhance payload efficiency. An embodiment of a method, for example, may include introducing a waste material into an enhanced-payload mobile vessel positioned at the oil and gas well site, the waste material selected to include one or more of a sludge waste material, a solids-laden wastewater material, and a dry waste material. The method may further include transporting the waste material when positioned in the enhanced-payload mobile vessel along roadways to an off-site waste management facility. Additionally, the method may include dumping the waste material from the enhanced-payload mobile vessel by a site-based lifting mechanism into a receiving vessel at the off-site waste management facility thereby to dispose of the waste material at a reduced transportation cost.

A system. The system includes a container comprising a cylindrical shell, wherein the cylindrical shell defines an internal volume of the container, and a barrier. The barrier includes a disk slideably disposed within the interior volume of the container, the disk subdividing the interior volume of the container into a first portion and a second portion, and a seal disposed about a circumference of the disk and in sealing contact with an interior surface of the cylindrical shell. The first portion is configured to sustain an internal pressure in a predetermined range; and the second portion is configured to receive a waste material. When the internal pressure is at a maximum value of the predetermined range, the disk has a deflection less than a predetermined deflection at which the sealing contact is compromised.

Systems and methods for supplying fresh cooking oil to fryers and removing used cooking oil from the fryers of facilities. The systems and methods include utilizing one or more portable vehicles to carry fresh and used oil for delivery and collection to and from fryers in remote kitchens, or kitchens where hard piped oil lines are not preferred. Also provided are methods of delivering cooking oil to, and removing cooking oil from, the facility via one or more additional vehicles that travels between the facility and one or more depots. In one embodiment there is provided a bulk cooking oil distribution system having a bulk fresh cooking oil tank and a bulk used cooking oil tank. The system includes a fresh cooking oil tank and a used cooking oil tank, where these tanks are associated with a portable device for delivery and pickup of cooking oil in a facility.

Systems and methods for supplying fresh cooking oil to fryers and removing used cooking oil from the fryers of facilities. The systems and methods include utilizing one or more portable vehicles to carry fresh and used oil for delivery and collection to and from fryers in remote kitchens, or kitchens where hard piped oil lines are not preferred. Also provided are methods of delivering cooking oil to, and removing cooking oil from, the facility via one or more additional vehicles that travels between the facility and one or more depots. In one embodiment there is provided a bulk cooking oil distribution system having a bulk fresh cooking oil tank and a bulk used cooking oil tank. The system includes a fresh cooking oil tank and a used cooking oil tank, where these tanks are associated with a portable device for delivery and pickup of cooking oil in a facility.

Embodiments of the present disclosure include systems and methods for collecting, storing, separating, and disposing of waste material from an oil and gas well site in order to enhance payload efficiency. An embodiment of a method, for example, may include introducing a waste material into an enhanced-payload mobile vessel positioned at the oil and gas well site, the waste material selected to include one or more of a sludge waste material, a solids-laden wastewater material, and a dry waste material. The method may further include transporting the waste material when positioned in the enhanced-payload mobile vessel along roadways to an off-site waste management facility. Additionally, the method may include dumping the waste material from the enhanced-payload mobile vessel by a site-based lifting mechanism into a receiving vessel at the off-site waste management facility thereby to dispose of the waste material at a reduced transportation cost.

Embodiments of the present disclosure include systems and methods for collecting, storing, separating, and disposing of waste material from an oil and gas well site in order to enhance payload efficiency. An embodiment of a method, for example, may include introducing a waste material into an enhanced-payload mobile vessel positioned at the oil and gas well site, the waste material selected to include one or more of a sludge waste material, a solids-laden wastewater material, and a dry waste material. The method may further include transporting the waste material when positioned in the enhanced-payload mobile vessel along roadways to an off-site waste management facility. Additionally, the method may include dumping the waste material from the enhanced-payload mobile vessel by a site-based lifting mechanism into a receiving vessel at the off-site waste management facility thereby to dispose of the waste material at a reduced transportation cost.