A composting bin and method for a vertically-oriented, modular, automated, emissions-controlled composting. In an embodiment, the system and method involve construction of a vertically-oriented set of composting modules comprising a receiving and offloading level, one or more composting bay levels, a feedstock staging level, a biofilter level, a vertical conveyor for uploading feedstock to the feedstock staging level, a freight and personnel elevator, and a leachate tank. This composting system and method reduces the land area required for composting, increases the capture of emissions from composting, and reduces the labor-intensive and heavy-equipment-intensive nature of current methods.

A compost leachate distribution device includes a composting chamber for receiving material to be composted and a leachate collection chamber for collecting, via a leachate fluid path, leachate generated during composting in the composting chamber. The device has a leachate mixing arrangement a first inlet for receiving a flow of water, a mixing chamber to which the first inlet leads for mixing water with leachate to form a water/leachate mix and an outlet leading from the mixing chamber to the exterior for exit of the water/leachate mix, wherein the leachate mixing arrangement has dosing means for controlling a rate of flow of leachate from the leachate collection chamber into the mixing chamber.

A sewage sludge-to-resource recycling system of circulation-type is provided for recycling sewage sludge as organic waste into a useful product. The sewage sludge-to-resource recycling system of circulation-type comprises: dehydration means to dehydrate sewage sludge to form a raw material; primary fermentative treatment means comprising a horizontal cylindrical shaped fermentative treatment container configured to be rotated about a central axis thereof; raw material supply means provided on the inlet end side of the fermentative treatment container and configured to receive the raw material from the dehydration means and supply the received raw material into the fermentative treatment container; primary fermented product discharge means provided on the discharge end side of the fermentative treatment container and configured to discharge the primary fermented product outside the fermentative treatment container: secondary fermentative treatment means to receive the primary fermented product from the primary fermentative treatment means, and additionally ferment the received primary fermented product to produce a secondary fermented product having a second set water content value or less, the second set water content value being less than a water content of the primary fermented product; carbonization means to receive the secondary fermented product from the secondary fermentative treatment means, and subject the received secondary fermented product to carbonization treatment to produce a carbide; mixing means to receive the secondary fermented product from the secondary fermentative treatment means and the carbide from the carbonization means, and mix them together to produce a mixture; and water content measurement means to measure the water content of the primary fermented product discharged from the primary fermentative treatment means; wherein the mixing means is connected to third distribute and supply means, the third distribution and supply means being configured to distributively supply at least part of the mixture to the raw material supply means and/or third useful resource processing means to perform processing into a third useful product of a third form.

A method for reducing particles from biosolids, comprising a storage tank for holding biosolids and an inlet pipe. The inlet pipe delivers biosolids from the storage tank to a screener and then to a percent solids meter. The percent solids meter measures the solid content in the biosolids and sends a signal to an electronic solenoid valve to control water content of the biosolids introduced to the system. A first venturi hydrodynamic cavitation to create vacuum bubbles in the biosolids. A mechanical hydrodynamic cavitation device operably connected to first venturi hydrodynamic cavitation, wherein the mechanical hydrodynamic cavitation device creates vacuum bubbles in the biosolids.