The embodiments described relate to an expeditionary solid waste disposal system configured to improve logistics and enable it to be readily deployed. The two-stage gasification/oxidation process takes place in a dual chambered device that resembles and functions as a shipping container. Incinerators or other waste conversion devices are commonly containerized by loading the equipment into a standard or modified shipping container. This apparatus is designed as a waste conversion unit that integrates all of the necessary features required to be an ISO-certified shipping container within its structural design such that the waste conversion system and shipping container are one and the same. With correct set-up by 2 persons aided by forklift the system can be configured and operational in a matter of hours.

A combustor for burning waste material includes a horizontally extended combustion chamber through which a mixture of waste material and air is introduced under pressure tangentially for establishing a vortical movement of the waste material toward one of the end walls. The waste material is ignited during its vortical movement. A second discharge port extends for discharging from the chamber non-combustible material entrained in the outer region of the vortex. The discharged material is conveyed through a conduit to a separator which separates the discharged gases and solid material. A secondary air manifold supplies air through controlled and automated dampers at portals positioned at intervals along the length of the chamber. An adjustable baffle is mounted on the flue adjacent its open end for deflecting outwardly toward the side wall solid material which moves from adjacent the one end wall toward the open end of the flue. A recuperator is mounted externally to the chamber on the exhaust flue, supplying heated air to the secondary air manifold and to the primary air and waste feed intake. Additionally, control means are provided for the use of specialized sensors to monitor the temperature, air flow and volume of the chamber, integrated into a process automation system that allows for control of individual components, stages, regions, as well as the entire process.

A combustor for burning waste material includes a horizontally extended combustion chamber through which a mixture of waste material and air is introduced under pressure tangentially for establishing a vortical movement of the waste material, and is ignited during its vortical movement. A second discharge port extends for discharging from the chamber non-combustible waste material, to a separator which separates the discharged gases and solid material. A secondary air manifold supplies air through controlled dampers at portals positioned at intervals along the length of the chamber. An adjustable baffle is mounted internally on the flue adjacent its open end for deflecting outwardly toward the side wall any combustible material not yet destroyed. A recuperator is mounted externally to the chamber on the exhaust flue, supplying heated air used with primary air flow. Additionally, control means are provided for the use of sensors to monitor the chamber conditions.

A trash burning receptacle is fashioned as a cast iron material of construction with a venting lid, an access door, and a removable tray. The receptacle is configured to be submerged in the earth with a restricting enclosure surrounding it.

An environmentally friendly combustion chamber for stable combustion of biomass gasification combustible gas. The combustion chamber is divided into a first stage cavity body (45) and a second stage cavity body (48) by a honeycomb-shaped heat storage body (46). A combustion pipe (41) is connected to a biomass gas inlet and a primary air distribution pipe (54), the combustion pipe (41) is connected to the first stage cavity body (45), and an ignition gun (42) and a thermocouple T1 are arranged on the first stage cavity body (45). A secondary air distribution pipe (47), opposite the honeycomb-shaped heat storage body (46), and a thermocouple T2 are arranged within the second stage cavity body (48), and the second stage cavity body (48) is connected to an outlet high temperature flue gas pipe (51). The primary air distribution pipe (54), a primary air volume adjustment valve (52), the secondary air distribution pipe (47) and a secondary air volume adjustment valve (53) are connected together to an air supply fan (49), and a controller (50) is connected to the thermocouple T1, the thermocouple T2, the primary air volume adjustment valve (52), the secondary air volume adjustment valve (53) and the air supply fan (49). The combustion chamber solves the problems of unstable combustion flames in traditional combustors, and high nitrogen oxide amounts in tail flue gas.

A method and system for converting an aqueous salt containing sludge into gases and a solid residue is described. The sludge is pyrolyzed and gasified with the assistance of microwave radiation.

Disclosed is a system and method for the combustion of biomass material employing a swirling fluidized bed combustion (SFBC) chamber, and preferably a second stage combustion carried out in a cyclone separator. In the combustion chamber, primary air is introduced from a bottom air box that fluidizes the bed material and fuel, and staged secondary air is introduced in the tangential direction and at varied vertical positions in the combustion chamber so as to cause the materials in the combustion chamber (i.e., the mixture of air and particles) to swirl. The secondary air injection can have a significant effect on the air-fuel particle flow in the combustion chamber, and more particularly strengthens the swirling flow, promotes axial recirculation, increases particle mass fluxes in the combustion chamber, and retains more fuel particles in the combustion chamber. This process increases the residence time of the particle flow. The turbulent flow of the fuel particles and air is well mixed and mostly burned in the combustion chamber, with any unburned waste and particles being directed to the cyclone separator, where such unburned waste and particles are burned completely, and flying ash is divided and collected in a container connected to the cyclone separator, while dioxin production is significantly minimized if not altogether eliminated. A Stirling engine along with cooling system and engine control box is integrated with the SFBC chamber to produce electricity from the waste combustion process. Residual heat in the flue gas may be captured after the combustion chamber and directed to a fuel feeder to first dry the biomass. System exhaust is directed to a twisted tube-based shell and tube heat exchanger (STHE) and may produce hot water for space heating.

The embodiments described relate to an expeditionary solid waste disposal system configured to improve logistics and enable it to be readily deployed. The two-stage gasification/oxidation process takes place in a dual chambered device that resembles and functions as a shipping container. Incinerators or other waste conversion devices are commonly containerized by loading the equipment into a standard or modified shipping container. This apparatus is designed as a waste conversion unit that integrates all of the necessary features required to be an ISO-certified shipping container within its structural design such that the waste conversion system and shipping container are one and the same. With correct set-up by 2 persons aided by forklift the system can be configured and operational in a matter of hours.

An optimized process and system for the production of a heat exchange fluid heated by means of combustion of a fuel are described, said process comprising the steps of: burning a fuel in a combustion chamber, thus generating a flow of exhaust gas, said flow comprising solid particulate matter and/or combusted or uncombusted particles; introducing said flow of exhaust gas into a unit suitable for the forced abatement of the solid particulate matter and/or combusted and uncombusted particles, thus obtaining a purified exhaust gas flow and a solid precipitate which comprises solid particulate matter; transferring the flow of purified gas to a generator of a heated heat exchange fluid, inside which a heat exchange fluid flows; carrying out an indirect heat exchange, thus obtaining a flow of cooled purified exhaust gas and a heated heat exchange fluid.

Systems and methods for incinerating waste solids are disclosed. A fluidized bed of solid particles is provided at an elevated temperature in a reactor. The waste stream, comprising the waste solids and water, is passed onto the fluidized bed of solid particles. The fluidized bed of solid particles has a sufficiently elevated temperature to vaporize substantially all of the water into an offgas stream. The waste solids are mixed among the bed of solid particles. Sufficient heat and oxygen are provided to incinerate the waste solids.