Abstract: Implementations disclosed herein provide a dry chemical scrubber with a pH regulator that adjusts an internal pH value of the dry chemical scrubber by adding high pH elements to the contents of the dry chemical scrubber on a continuous or periodic basis.

Abstract: A fugitive gas capture system includes a variable volume gas storage assembly (e.g., a bag) that captures gas from headspace of a production tank. The variable volume storage assembly has a first state and a second state corresponding to first position and a second position, respectively, where the first state represents a greater volume of captured gas being stored than a volume of captured gas stored in the second state. A back pressure regulator is included between the variable volume storage assembly and the production tank to backflows gas from the variable volume storage assembly back into the headspace of the production tank.

Abstract: Implementations disclosed herein provide a dry chemical scrubber with a pH regulator that adjusts an internal pH value of the dry chemical scrubber by adding high pH elements to the contents of the dry chemical scrubber on a continuous or periodic basis.

Abstract: Implementations disclosed herein provide a scrubber system for the reduction and removal of acid gas from a gas stream. The scrubber system includes a dry chemical scrubber having an amount of bacteria therein. A gas stream containing an acid gas contaminant such as H2S is directed into and treated by the dry chemical scrubber; both media within the scrubber system and bacteria reduce the level of acid gas contaminant in the gas stream. In some implementations, the bacteria is carried over from a biological scrubber fluidly connected upstream of the dry chemical scrubber. The pH of the gas stream from the biological scrubber may be regulated prior to passing into the dry chemical scrubber.

Abstract: A fugitive gas capture system includes a variable volume gas storage assembly (e.g., a bag) that expands and deflates between a first position and a second position, respectively, where the positions influence control of a switch coupled to a throttle on a gas engine that powers a compressor or coupled to a valve input to a gas booster compressor. The compressor is coupled to an output pipeline to provide the compressed gas in liquid or gas form to a pipeline under consistent pressure. Alternatively, the compressed gas may be on-site in a separator, in a heater treater, for various controls, as engine fuel, or with any other energy source employed on site, e.g., electric power from offgas vapors used to generate on-site electricity.

Abstract: An oil-gas vapor collection, storage, and recovery system ensures that no air or oxygen leakage into the production tank occurs when gauging and/or emptying a tank. The system provides a constant reservoir-type storage system by utilizing a variable volume gas bag, expanding with a surge of gas from the separator and with minimal water column pressure from the plunger lift system, thereby containing the gas surge, but contracting with gas dissipation thus minimizing the compressor cycling, while accommodating rapid liquid and vapor influxes into the tank thus maintaining constant tank pressure. With expansion, the bag actuates a switch which activates a compressor, which, in turn, compresses the contained gas into the pipeline. Upon bag collapse, a switch is activated to turn off the compressor. Thus, the system provides constant storage tank pressure because the gas bag accommodates and controls variable gas volume.

Abstract: This invention relates to an improved apparatus for both processing and removing animal waste products from a pit continually supplied therewith which comprises a ramp-like lid partially covering the pit and cooperating with the contents thereof to seal the latter from the atmosphere except where the waste products enter, a spray at the head of the ramp for flushing the waste materials down and off the lower end thereof into the pit, a heater buried in the material within the pit effective to maintain the temperature thereof at a level conducive to facilitate anaerobic digestion of the bio-degradable portion thereof, means for piping off the bio-gas generated underneath the lid and using a portion thereof to fire the heater, and means for draining the pit remote from the point where the fresh waste enters same, such means being adapted to maintain a near constant level of material within the pit effective to preserve the seal and discharge material therefrom without admitting air thereto.

Abstract: Moisture is removed from a fluid waste product or material by pumping the material axially through an elongated porous tube, forcing a gas generally radially inwardly through the tube to effect disintegration of the material, and then directing the material through a perforated duct which receives heated air from a burner unit. As the moisture evaporates from the material, the moisture vapor is separated from the dry solid particles by a separator connected to a suction blower for inducing a draft. The apparatus may also be adapted for treating or drying other materials such as slurries of metallurgical ores and for oxidizing or reducing mineral-type materials in addition to drying finely dispersed metal slurries in the production of powdered metals. Another embodiment of the apparatus is used for burning a fluid waste product or material.

Abstract: This invention relates to an improved anaerobic digestion apparatus for decomposable organic materials characterized by a digestor covered and sealed by a liquid-filled pond heated with solar energy. The effluent from the fermentation reaction taking place in the digestor has excellent absorptivity for solar energy and is advantageously used as the heat transfer medium filling the pond. The pond is covered with a translucent roof capable of transmitting solar energy, such roof cooperating with the liquid-filled pond therebeneath to produce an artificial environment of reduced sensitivity to atmospheric conditions which is operative to help maintain a condition of stable equilibrium within the digestor. In the preferred embodiment, the vessel forming part of the digestor in which the fermentation reaction takes place comprises an excavated trench lined with a suitable fluid-impermeable membrance while the roof over the pond consists of an inflatable air-supported bubble.