Abstract:
Liquid waste generated aboard a maritime vessel is separated into oily and non-oily components for separate treatment to obtain flow streams having different waste contents. Those of the flow streams having waste content reduced by the treatment are discharged overboard while the other flow streams having concentrated waste content are subject to incineration.
Abstract:
A municipal or like refuse, from which large articles of metals have been removed, is mixed with an alkaline substance like limestone preferably in a triple screw mixer, and then advanced along the pyrolysis path in which the refuse mixture is subjected to heat from combustion gases from an incineration chamber therebelow. A portion of the pyrolyzed product is recycled to the upstream side of that path and the remainder of the pyrolyzed product is scrubbed with an aqueous medium, e.g. water and/or aqueous acetic acid and the washed pyrolyzed product is then incinerated to produce the combustion gas.
Abstract:
The invention provides a process for energy recovery through waste classification and calcination, and an apparatus therefor; the process comprises crushing and sorting various types of wastes, and by means of a series of classification, calcination and recovering treatments, recovering and reusing efficiently fuel oil, fuel gas and residues, as well as providing electric power and heat required for the apparatus in the self-supplying feedback system of the invention, and additionally, lowering successfully the secondary pollution from waste disposal.
Abstract:
A method for decontaminating both soil and mixed waste water polluted by hydrocarbons in a single integrated process is disclosed. Contaminated mixed waste fluid is separated into water and hydrocarbons which are then used in the thermal decontamination of polluted soil through the volatilization of hydrocarbon contaminants. Flue gases containing the volatilized hydrocarbons from the thermal soil decontamination undergo oxidation. Thermal energy from the soil decontamination process and the thermal oxidization of the flue gases can be recovered and used to facilitate the separation of hydrocarbons and water. In this integrated system, every by-product of each step is either decontaminated or consumed in another operation of the system. Energy conservation within this system is also realized by the use of heat exchangers to transfer energy from where it is created by the process to where it is used elsewhere to enhance efficiency within the process. It is possible to run this apparatus and process so that the only outputs of this system are decontaminated soil and clean exhaust gases.
Abstract:
The present invention provides a tunnel type garbage incinerator, which is characterized that the garbages are first classified into combustible and incombustible materials, then the combustible materials are loaded on a bogie and fed into the incinerating tunnel for incineration, the fore section of the incinerating tunnel is used for drying combustible materials, the middle section of the incinerating tunnel is used for the bleast incineration of the combustible material, the aft section of the incinerating tunnel is used for the cooling and output port of the incinerated materials or ashes. In which, the incinerating tunnel is furnished with blowers, flame igniting device, smoke processing device, and through proper arrangement of the components, the garbages can be completely combusted with minimal fuel oil consumption, furthermore, since the smoke is filtered before it is expelled, it does not produce air pollution.
Abstract:
Method and apparatus are disclosed for feeding solid waste to a fluid bed disposal apparatus wherein solid waste is separated by air classification into a heavy low fuel valve fraction which is segregated from the fluid bed apparatus and a lighter particle fraction which is conveyed to an inertial separator stage via a conveying gas stream. In the inertial separation stage the lighter fraction solid waste is separated from the conveying stream and delivered to a storage area from which it is drawn and introduced via an air-lock feed valve to a fluid conduit and into the fluid bed chamber.