[Problem]

To provide a microorganism deodorizing device capable of sufficiently exhibiting a decomposition-deodorization function while suppressing an increase in manufacturing cost, even in a large-scale device including a large-sized deodorizing tank.

[Solution]

A deodorizing tank 1 of a microorganism deodorizing device 1A forms an airflow passage 20 through which air passes from a chamber unit 3 to an opening portion 19; and the airflow passage 20 is provided with a deodorizing unit 5 in which a foam material 17 is filled, a ventilation resistance layer 4 arranged close to or adjacent to the deodorizing unit 5 and configured to increase ventilation resistance of the air flowing through the airflow passage 20, and a chamber unit 3 arranged close to or adjacent to the deodorizing unit 5 and/or the ventilation resistance layer 4 as a chamber which temporarily stores the air fed to the deodorizing tank 1; and the air is fed to the deodorizing unit 5 in a state of being spread in the chamber unit 3 over a substantially entire surface of the deodorizing unit 5 as a result of that the ventilation resistance of flow of the air flowing through the airflow passage 20 is increased by the ventilation resistance layer 4.

A readily erectable installation for recycling organic waste into biogas and liquid fertilizer, on an industrial scale, implementing essentially anaerobic digestion processes, is described; the readily erectable installation includes: a cylindrically shaped assemblable enclosure and a pliant collapsible anaerobic digester, suspendable from the enclosure; a compact kit-of-parts for erecting the installation and respective method using the readily erectable installation for recycling organic waste into biogas and liquid fertilizer are described.

Culture systems and methods of using same. The systems include a housing defining an inner space. The inner space includes a headspace and at least a portion of a reservoir. A surface for immobilizing cells is moveable between the headspace and the reservoir. The systems can be used for coculturing methanotrophs and phototrophs for processing biogas and wastewater, particularly from anaerobic digesters.

Provided in the present invention is an incubator capable of producing pressure fluctuations. The incubator comprises an incubator body and a variable pressure apparatus, the incubator body having a variable pressure interface, the variable pressure apparatus being connected to the incubator body by means of the variable pressure interface, and the variable pressure apparatus being used for inputting fluctuating or constant air pressure into the incubator body.

Processes, systems, and associated control methodologies are disclosed that control the flow of biogas during the biogas cleanup process to create a more consistent flow of biogas through the digester, while also optimizing the output and efficiency of the overall renewable natural gas facility. In representative embodiments, a biogas buffer storage system may be used during the cleanup process to control the pressure and flow rate of biogas. The biogas buffer storage system may monitor and control the biogas flow rate to either bring down or increase the digester pressure, thereby maintaining a normalized biogas flow rate.

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.

A culture container transportation set suitable for cultured state-maintaining transportation is provided. A culture container transportation set A1 includes: a culture container 13 including a vessel 13 made up of a bottom wall 11 and a tubular side wall 12 rising from the bottom wall 11; a flexible cover 2 covering an upper edge portion 121 of the side wall 12; a hard pressing member 3 provided on the cover 2; a cushioning material 4 of shape restorability; and a housing container 6 that houses the culture container 1, the cover 2, the pressing member 3 and the cushioning material 4 in an assembled state in which these components are stacked while pressing these components from above and below. The cushioning material 4 is provided between the housing container 6 and the culture container 1 or between the pressing member 3 and the housing container 6.

An anaerobic digestion device based on self-sustained air flotation includes an anaerobic digestion tank unit, a self-sustained air flotation screening unit and a biogas measurement and collection unit. The self-sustained air flotation screening unit includes an air flotation screening part, a material sedimentation part, a reflux part and a three-phase separation part connected sequentially from bottom to top. A digested material in the anaerobic digestion tank unit is pumped into the air flotation screening part, overflows into the material sedimentation part, and then is raised to the reflux part. Gas passing through the three-phase separation part and gas produced in the anaerobic digestion tank unit enter the biogas measurement and collection unit to be measured and collected.

A high-concentration anaerobic fermentation apparatus includes a liquid accumulation tank, a fermentation vessel, a feeding assembly, and a biogas residue collecting bin. The feeding assembly includes a hopper and a return conveyor belt including a first portion extending downward from the hopper till below a liquid level, a second portion extending upward from a bottom end of the first portion till above the liquid level, a third portion extending downward from a top end of the second portion till the liquid level, and a fourth portion extending upward from a bottom end of the third portion till out of the liquid level and above the biogas residue collecting bin. A pressure-feed flange is disposed at an outer side of the fermentation vessel, a feed channel is formed between the pressure-feed flange and the first portion, and a discharge channel is formed between the pressure-feed flange and the fourth portion.

Systems and methods provide a self-contained sealed apparatus that captures, filters, compresses and stores methane gas produced by the decomposition of bio-degradable organic materials. The system includes a rotatable and sealable chamber with an intermittent drive unit that mixes moist bio-degradable material during an anaerobic reaction, and captures methane gas generated by anaerobic decomposition. A filter to remove impurities, a low-pressure storage tank, a compressor and a high-pressure storage tank are interconnected and controlled by a system that monitors system parameters, that may include gas flow rate, temperature, and gas volume, and controls system parameters, that may include drive unit activation, generator operation, and compressor operation.