Abstract:
A system and method of integrated waste management having a source of a combustible waste material, a separator for separating the combustible waste material from a recyclable material, an airless drier for drying the combustible waste material to generate a pyrolysis feedstock, and a pyrolyser for pyrolysing the pyrolysis feedstock to form char and pyrogas. The system and method for power generation may also use an oxidiser for the high-temperature oxidation of syngas generated from the pyrolysis feedstock to generate heat for power production.
Abstract:
A processing facility can dispose of food waste in environmentally undisruptive manners. The processing facility can convert the food waste into bio-energy and bio-fuel products, such as bio-diesel, ethanol, and electricity. The processing facility can sort the food waste based on the fats or carbohydrates content of the food waste, and the processing facility can include a fluidized bed combustion module for combusting portions of the food waste.
Abstract:
A method and an apparatus for treating and utilizing waste materials and mixtures thereof in multiple steps resulting in a high-yield utilization particularly of organic components of the waste for generating kinetically useful energy. The waste materials are sorted by classes, principally between organic and non-organic, e.g. metallic and ceramic, substances. The organic substances are briquetted and gasified, the produced gas being utilized for the direct and indirect generation of electricity and heat.
Abstract:
A method and an apparatus for treating and utilizing waste materials and mixtures thereof in multiple steps resulting in a high-yield utilization particularly of organic components of the waste for generating kinetically useful energy. The waste materials are sorted by classes, principally between organic and non-organic, e.g. metallic and ceramic, substances. The organic substances are briquetted and gasified, the produced gas being utilized for the direct and indirect generation of electricity and heat.
Abstract:
A slow speed high torque shear technology is disclosed having optional configurations and attachments for its construction and methods for reconfiguring existing shears to improve performance, and maintenance economics. A method is provided for the readily replacement of individual cutters and tooth modules, reconfiguration of cutter and tooth assemblies in a mix and match manner, in combination with matching anvils having replacement cutting elements with multiple cutting faces. Alternative embodiments are provided illustrating methods of configuration of various types of cutting elements and material feed systems. Methods for converting a shear a rough cut shear to a fine particle shear and then to a granulator is provides. A method for rejecting unprocessable material is also disclosed.
Abstract:
Disclosed is a method and system for recovering energy from low-grade fuels such as industrial, municipal and agricultural waste, low-grade carbonaceous fuels such as lignite and similar solid fuels in which the fuel is comminuted into small particles and slurried in water. The alkali content of the slurry is adjusted to be at least about equal to the chemical equivalent of the halogen content of the slurry and, following pressurization of the slurry, it is heated sufficiently so that the substantial portion of chemically bound oxygen in the fuel separates therefrom as carbon dioxide, leaving a slurry including char particles and dissolved impurities such as halogen salts. The char particles are removed from the slurry and reslurried with just enough halogen-free water to provide the slurry with the needed viscosity to maximize the energy density thereof. The char particles are then reacted with air at a temperature below their ignition value to convert the fuel value of the low-grade fuel into thermal energy which is then further used, for example, to drive a turbine.
Abstract:
The preferred embodiment of the invention disclosed herein includes apparatus for and the steps of separating glass, metal and other generally non-combustible material from refuse to provide a volume of generally combustible refuse, shreddingthe volume of combustible refuse into relatively small particles and mixing the particles with primary combustion air, which is used to convey the particles to a combustion chamber. Auxiliary burners are used to heat the combustion chamber to a predetermined temperature above which the particles are self-igniting and use of the burners is thereafter discontinued unless the temperature falls below the predetermined temperature. The particles are separated as they are injected into the combustion chamber with a cyclonic motion. In the combustion chamber the mixture is ignited and converted to combustion gases which flow through the chamber. The flow of secondary air is regulated to provide maximum combustion temperature for the particles and negative pressure is maintained in the chamber to control the flow rate of the gases and to assure that the gases are generally completely combusted. The combusted gases are exhausted to an associated device such as a steam boiler or other device using the heat energy and thereafter are exhausted to the atmosphere.
Abstract:
Combustible waste material is collected and processed after which it is disposed of by incineration, the energy derived from combustion being utilized to produce electrical energy. Included in the processing of the waste material are the steps of shredding the waste material, feeding the shredded material through a high density press to separate the dry matter from the liquids, heating the shredded material to drive off additional moisture and gases, fluidizing and feeding the dried shredded material into the incinerator.
Abstract:
A combined treatment process of domestic garbage and sewage, comprising the following steps: {circle around (1)} sorting iron out of the domestic garbage; {circle around (2)} crushing the domestic garbage in which the iron has been removed; {circle around (3)} feeding the crushed domestic garbage into a sewage treatment tank, adding water and blowing air into the sewage treatment tank, where the domestic garbage is divided into floating substances, suspended substances, and settled substances; {circle around (4)} salvaging, dehydrating and drying the floating substances and then combusting them as fuel; {circle around (5)} collecting, filtering and drying the settled substances, wherein the settled substances having a calorific value of more than 4180 kJ/kg are burnt as fuel, the burnt substances and the settled substances having a calorific value of less than 4180 kJ/kg are used to replace clay material in a cement plant or used for making bricks; {circle around (6)} adding a flocculant into the sewage in which the floating substances and the settled substances have been removed so as to make the suspended substances settle, the suspended substances which have been settled are treated according to step {circle around (5)}; and {circle around (7)} treating the sewage. The process of the present invention effectively combines the domestic garbage treatment and sewage treatment, realizing the comprehensive treatment of domestic garbage and sewage as well as efficient utilization of resources.
Abstract:
A carbonization process of rubber products, such as shredded waste tires, in a sealed carbonizing vessel whose operating pressure is below atmospheric pressure and under controlled high temperature environment while continuously being moved in a defined path at a controlled speed thus enabling the shredded tires to be fed constantly into the vessel while the by-products of the carbonization process are continually discharged.