The present invention relates to an organic matter biodigester comprising a tank that has an organic matter inlet, a first connection arranged in an upper portion of the tank and a second connection arranged in the lower portion of the tank. Furthermore, said tank also has a biogas outlet and a lower surface configured to rest on a support surface. Furthermore, the lower portion of the tank is at a shorter distance from the support surface compared to the upper portion of the tank. Said organic matter biodigester also comprises a manual pump with a pump inlet connected in the second connection, and a pump outlet connected in the first connection of the tank. The pump is configured to recirculate the organic matter inside the tank from the second connection towards the first connection; and a porous layer arranged inside the tank.

A method of determining the volume of organic material in a composting device includes rotating a mixing paddle in a composting bin that stores the organic material; monitoring the torque from a motor that rotates the mixing paddle as the mixing paddle rotates; and determining the height of the organic material in the composting bin based on the motor torque and the angular displacement of the mixing paddle. The resulting height can be used to determine the volume of the organic material.

The invention concerns a method for treating a mixture of wastes (4) comprising biodegradable wastes, the method being characterized in that it includes the following successive steps: Step A: the mixture of wastes (4) is subjected to a first composting cycle so as to obtain a mixture of pre-composted wastes (4), Step B: the mixture of pre-composted wastes (4) is subjected to a drying so as to obtain a mixture of dried wastes (4), Step C: the mixture of dried wastes (4) is separated into at least a portion of heavy wastes (14) and a portion of light wastes (13), Step D: the portion of light wastes (13) is subjected to a second composting cycle to so as to obtain a mixture (4) of refined wastes (20).

Treatment of biodegradable wastes.

A method and a system for making compost are provided. The method includes following steps. First, a temperature of a compost controlling system is obtained. A heater module is turned on in a first mode. If the temperature is higher than a first predetermined temperature in the first mode, it switches into a second mode and the heater module is turned off. If the temperature is higher than a second predetermined temperature which is higher than the second predetermined temperature in the second mode, it switches into a third mode. If the temperature is lower than a third predetermined which is lower than the second predetermined temperature in the third mode, a compost completion message is generated. Accordingly, a probability of making the compost successfully is increased.

The present invention is a composting bioreactor system that can be continually fed with biodegradable solid wastes, waste waters and exhaust gases, that can automatically recycle the biodegradable wastes into liquid nutrients and heat energy, and that automatically supplies the nutritious liquid and heat into the integrated hydroponics system or aquaponics system. The invention together with the integrated food growing system can be installed onsite in places such as household balconies, household backyards and premises of restaurants and food factories etc. therefore can lead to zero mileage targets both for recycling the wastes and for growing the foods consumed in the same location. It can fully recover and reuse all the nutrients and heat energy from the treated wastes. It can also reach the target of nearly zero pollution to the environment during all processes. For better operational efficiency, an oblique cone agitator, a fish plow agitator and a vortex flower turbine are specially designed for the bioreactor system.

Decomposing waste material may use a no-turn, aerobic composting apparatus that includes an enclosure for containing waste material and a fluid distribution system including a fluid injection member removably disposable in waste material disposed in the enclosure. The fluid injection member includes a plurality of spaced apertures for injecting fluid into the waste material.

A tetra vermi compost container and a method for composting in a container made from a flexible fabric with walls secured by rope. Support pockets affixed to the exterior of the sidewalls for receiving support poles. Apertures in the sidewalls vent the container. Vermi wash or leachate drains through an aperture in the bottom wall into a drainage pipe and the free end of the pipe empties into a cup installed in a pit within the work surface. The compost method yields manure. The tetra vermi compost container is collapsible so that it can be easily assembled and disassembled for operation at multiple sites and for storing agricultural waste.

Contiguous flow anaerobic digester for mechanization of organic matter and production of fertilizer powering the conditions and performance of the anaerobic digestion process, through homogenization of the sludge and process temperature, wherein the digester is tubular shaped and comprises a biogas exhaust valve at the top of the digester. One end of the digester has a sludge outlet connection, a water- and gas-tight zipper that is resistant to the corrosive elements of digestion, and an outlet. The opposite end of the digester has a mud inlet, and a water- and gas-tight zipper that is resistant to the corrosive elements of digestion, wherein said digester further comprises at its base a gas irrigation system for biogas recirculation composed of a polymeric material resilient to the corrosive elements of anaerobic digestion.

A kitchen waste treatment device in environment-protection-device field comprises a main fermentation barrel comprising a barrel body mounted on supporting brackets and including a feed inlet, a discharge outlet and a material chamber, push plates located within the material chamber to push materials therein to move along barrel body axial direction and further a gas inlet system having gas inlets located at same barrel body end as the discharge outlet and a gas-exhaust system having gas-exhaust ports located at same barrel body end as the feed inlet; a feeding apparatus whose feed end communicates with the feed inlet; and a power apparatus driving the barrel body to rotate around its axis. The gas inlets/gas-exhaust ports communicate with the material chamber. The treatment device has simple compact structure and small occupied area and realizes material horizontal propulsion and repeated rotational-stirring in the barrel body by barrel body rotation, achieving material-degrading-and-fermenting object.

A non-thermal plasma reaction assembly continuously produces an aqueous nitrogen-based fertilizer. Atmospheric air or nitrogen gas and water are fed to the non-thermal plasma reaction assembly. One or more coaxial dielectric barrier discharge reactors are provided as part of the non-thermal plasma reaction assembly. The coaxial dielectric barrier discharge reactor(s), per an implementation, has a first plasma discharge zone with a first high-voltage electrode and a second plasma discharge zone with a second high-voltage electrode. The first and second plasma discharge zones and high-voltage electrodes are arranged in succession relative to each other. Compared to past approaches, a higher throughput and higher yield can be furnished with employment of the non-thermal plasma reaction assembly, as well as lower electricity consumption, among many other advancements.