Abstract: A cover for a slurry container is provided. The cover includes a plurality of attachable cover units including a first attachable cover unit and a second attachable cover unit. Each of the attachable cover units has at least one edge with an attachable portion. The first attachable cover unit is attached to the second attachable cover unit at the edge of the first and second attachable cover units having the attachable portion.

Abstract: Methods and devices for sealing a storage vessel or other apparatus are provided. A piston moves from a first position to a second position within a body to compress a sealing element, such as a metallic ring. One or more attachment elements connect the piston to the body. A removable pipe can be used for pump-out.

Abstract: A multi-layered vessel may include a first vessel layer and a retaining vessel layer. The retaining vessel layer may be configured to strengthen the first vessel layer, and the retaining vessel layer may be secured to outer walls and/or inner walls of the first vessel layer. The first vessel layer alone (or with the retaining vessel layer and/or one or more additional retaining vessel layers) may form a sealed vessel.

Abstract: A cover for a lagoon is provided. The cover includes an expandable membrane; a plurality of stretchable members coupled to the expandable membrane and configured to compress the expandable membrane; and a plurality of restraining members coupled to the expandable membrane and configured to limit expansion of the expandable membrane.

Abstract: Systems and methods for separating a biogas or other gaseous material into its constituent parts, including solid methane and carbon dioxide, using liquid nitrogen in a processing chamber. The individual parts may be extracted from the processing chamber. Separation and extraction can be performed on a mobile processing plant.

Abstract: There is provided an energy capture system. The system may comprise one or more rotor blades or solar panels and a compressor. The compressor is configured to be driven by the one or more rotor blades or solar panels to draw gas and to compress the gas, thereby producing a compressed material. The system further comprises a pressure receiver coupled to an output of the compressor and configured to receive the compressed material from the compressor. The system further comprises an energy recovery unit coupled to the pressure receiver and configured to receive the compressed material from the pressure receiver. The energy recovery unit is configured to generate mechanical and/or electrical energy using the compressed material.

Abstract: Methods and devices for vaporization with a device comprising a liquid input, a gas output, and one or more plates arranged below the liquid input. The one or more plates are configured to receive liquid in droplet form from the liquid input and generate gas by vaporizing the droplets, and the generated gas exits the device via the gas output. The device may include a conduit, such as a pipe carrying a fluid such as engine coolant or other heat source, where the one or more plates are mounted on the conduit or heat source.

Abstract: A cover for a slurry container is provided. The cover includes a plurality of attachable cover units including a first attachable cover unit and a second attachable cover unit. Each of the attachable cover units has at least one edge with an attachable portion. The first attachable cover unit is attached to the second attachable cover unit at the edge of the first and second attachable cover units having the attachable portion.

Abstract: Systems and methods for controlling the temperature and pressure of a cryogenic liquid methane storage unit are provided. The disclosed systems and methods generate methane gas from a reservoir of liquid methane stored within the methane storage unit, vent the methane gas through one or more outlet valves connected to the methane storage unit, and generate electric power using the vented methane gas. The generated electric power can then be used to initiating a cooling cycle, which reduces the temperature of said reservoir of liquid methane and reduces the pressure in said methane storage unit. Micro anaerobic digesters and methane storage units may be configured in a networked environment with a central controller that monitors remote units.

Abstract: A cover for a lagoon is provided. The cover includes an expandable membrane; a plurality of stretchable members coupled to the expandable membrane and configured to compress the expandable membrane; and a plurality of restraining members coupled to the expandable membrane and configured to limit expansion of the expandable membrane.

Abstract: Methods and devices for sealing a storage vessel or other apparatus are provided. A piston moves from a first position to a second position within a body to compress a sealing element, such as a metallic ring. One or more attachment elements connect the piston to the body. A removable pipe can be used for pump-out.

Abstract: A cover for a lagoon is provided. The cover includes an expandable membrane; a plurality of stretchable members coupled to the expandable membrane and configured to compress the expandable membrane; and a plurality of restraining members coupled to the expandable membrane and configured to limit expansion of the expandable membrane.

Abstract: There is provided an energy capture system. The system may comprise one or more rotor blades or solar panels and a compressor. The compressor is configured to be driven by the one or more rotor blades or solar panels to draw gas and to compress the gas, thereby producing a compressed material. The system further comprises a pressure receiver coupled to an output of the compressor and configured to receive the compressed material from the compressor. The system further comprises an energy recovery unit coupled to the pressure receiver and configured to receive the compressed material from the pressure receiver. The energy recovery unit is configured to generate mechanical and/or electrical energy using the compressed material.

Abstract: Storage systems and methods of manufacturing and using the same. A storage tank is provided with an inner vessel, an outer vessel, and a support system between the vessels. The support system may comprise a repeating pattern of openings that effectively lengthens the heat path between the inner and outer vessels.

Abstract: An anaerobic digestion system is provided. The system includes a biomass storage container and a cover positioned over the biomass storage container, where the cover is sealed at an outer edge of the anaerobic digester. Weights may be arranged on the surface of the cover, and the sealed edges may form a water collection region. Additional systems, including thermal management, gas processing, energy storage and recovery, and sensing can also be included.

Abstract: Systems and methods for the storage and delivery of fuel, such as methane. In certain aspects, a system is provided with an inner vessel, and outer vessel, and a rope suspension system connecting the two vessels. In certain aspects, the disclosed storage tanks operate at low pressure with long hold times, and have a non-cylindrical shape.

Abstract: Systems and methods for the storage and delivery of fuel, such as methane. In certain aspects, a system is provided with an inner vessel, and outer vessel, and a rope suspension system connecting the two vessels. In certain aspects, the disclosed storage tanks operate at low pressure with long hold times, and have a non-cylindrical shape.

Abstract: Systems and methods for separating a biogas or other gaseous material into its constituent parts, including solid methane and carbon dioxide, using liquid nitrogen in a processing chamber. The individual parts may be extracted from the processing chamber. Separation and extraction can be performed on a mobile processing plant.

Abstract: An anaerobic digester is provided. The anaerobic digester includes a biogas storage container comprising a semi-permeable membrane separating the biogas storage container into a first space and a second space, such that the first space is configured to be methane enriched and the second space is configured to be CO2 enriched. The anaerobic digester further includes a cover positioned over the biogas storage container for protecting the biogas storage container against the elements.

Abstract: Systems and methods for controlling the temperature and pressure of a cryogenic liquid methane storage unit are provided. The disclosed systems and methods generate methane gas from a reservoir of liquid methane stored within the methane storage unit, vent the methane gas through one or more outlet valves connected to the methane storage unit, and generate electric power using the vented methane gas. The generated electric power can then be used to initiating a cooling cycle, which reduces the temperature of said reservoir of liquid methane and reduces the pressure in said methane storage unit. Micro anaerobic digesters and methane storage units may be configured in a networked environment with a central controller that monitors remote units.