Disclosed is a method of simultaneously processing fly ash and COPR, which can treat the fly ash and COPR harmlessly during the landfilling process through biochemical and engineering measures. The method includes: transferring the fly ash and COPR to the yard; laying an impervious layer inside the yard; laying a diversion material at a bottom of the yard; laying a mixture layer on the diversion material, where the mixture layer contains a biogas residue, a waste carbon source, ferrous sulfate, a nutritional additive, the waste incineration fly ash and COPR; placing an internal-electrolysis ceramsite layer on the mixture layer; injecting a carbon source solution from an upper portion of the yard and collecting a leachate to a collection device through the diversion material irregularly during the operation; and recirculating the leachate to a top of the yard for spray reinjection.

An organic composition for decomposing bodily remains including a composite mixture of compost, peat, sulfur, and gypsum. The composite mixture is configured to combine with the bodily remains to decompose the bodily remains. The combined mixture has a reduced pH for reducing the detrimental effects of the bodily remains on the environment.

The present invention describes a method for manufacturing of a composite fixated material comprising the steps of: (a) providing bottom oil shale ash obtained after burning oil shale, said bottom oil shale (BOSA) comprises pozzolanic particles having size of about 10 to 4000 μm and being capable of adsorbing trace elements at their surface; (b) providing acidic waste comprising said trace elements; and (c) adding the BOSA provided in step (a) to the acidic waste provided in step (b) in amount of about 0.1-0.4 weight parts of said BOSA per one weight part of said waste, and mixing said waste with said BOSA, thereby obtaining a neutralised (scrubbed) precipitate with the fixated trace elements, wherein said neutralised (scrubbed) precipitate with the fixated trace elements constitutes said composite fixated material.

A fly ash treatment method includes: a setting step: finding out an initial viscosity value of initial fly ash; a pickling operation step: adding the initial fly ash, water and an acid to a pickling tank, uniformly stirring the mixture, and detecting and adjusting a ratio of components of slurry in the pickling tank to conform to a variation of the curve in the heavy metal leaching test curve graph; a first quantitative output step: inputting the slurry into a first buffer tank and quantitatively output the slurry; a first filtration step: filtering fine particles in the slurry output by from the first buffer tank; a drying and pulverizing step: removing water from the slurry passing through the first filter, and performing pulverizing to form powder; and a rotary kiln cracking step: cracking organic matters in the powder by a rotary kiln, and collecting fly ash cinder.

Systems and methods of the present invention include a method for the treatment of drilling wastes and coal combustion residues, comprising combining at least a first drilling waste with coal combustion residues to form a paste, combining at least a second drilling waste with coal combustion residues to form a compactable fill, and placing the paste and the compactable fill in a landfill. Other embodiments include a method of treating drilling wastes and coal combustion residues, comprising combining at least one drilling waste with a coal combustion residue to form a paste. Further embodiments include containing the paste within at least one geotextile container. Still further embodiments include placing the geotextile container in a landfill.

An ash management trench system is provided for harvesting byproducts from sluice water, such as a discharge from a power plant. The system comprises a first section comprising at least one flow control structure. The at least one flow structure is typically configured to capture a predetermined byproduct. The system further comprises a second section comprising a stilling basin. The second section is coupled to the first section by a connection structure.

Disclosed is a method of simultaneously processing fly ash and COPR, which can treat the fly ash and COPR harmlessly during the landfilling process through biochemical and engineering measures. The method includes: transferring the fly ash and COPR to the yard; laying an impervious layer inside the yard; laying a diversion material at a bottom of the yard; laying a mixture layer on the diversion material, where the mixture layer contains a biogas residue, a waste carbon source, ferrous sulfate, a nutritional additive, the waste incineration fly ash and COPR; placing an internal-electrolysis ceramsite layer on the mixture layer; injecting a carbon source solution from an upper portion of the yard and collecting a leachate to a collection device through the diversion material irregularly during the operation; and recirculating the leachate to a top of the yard for spray reinjection.

A method of recovering the fly ash, including the firing step in which the raw fly ash powder containing the unburned carbon is fired to remove the unburned carbon by burning, characterized by further including the step of measuring the content of unburned carbon in the raw fly ash powder; and the sieve-classifying step of obtaining a fine fly ash powder which is the component under the sieve and has a decreased content of unburned carbon as a result of sieve-classifying the raw fly ash powder; wherein the perforation size of the sieve used in the sieve-classifying step is set depending upon the content of unburned carbon in the raw fly ash powder, the sieve having a small perforation size being used when the content of unburned carbon is large and the sieve having a large perforation size being used when the content of unburned carbon is small; and the fine fly ash powder which is the component under the sieve is recovered through the firing step.

A process for reforming the fly ash by heating a raw fly ash powder that contains the unburned carbon and thereby decreasing the content of the unburned carbon, characterized in that (a) as means for heating the raw fly ash powder, use is made of a heating unit that heats the raw fly ash powder by passing it through a heated medium-fluidized bed, (b) a high-temperature gas stream is passed through the heating unit to form the heated medium-fluidized bed and to fluidize and convey the raw fly ash powder that is thrown into the medium-fluidized bed, (c) the flow rate of the high-temperature gas stream is so set that the raw fly ash powder thrown into the heating unit is all heated in the medium-fluidized bed and is taken out from a take-out port provided at an upper part of the heating unit but that the particulate medium forming the medium-fluidized bed is not discharged from the take-out port, (d) the fly ash powder after heated and discharged from the take-out port of the heating unit is introduced into an air classifier where it is separated into a fine powder and a coarse powder, (e) the fine powder separated by the air classifier is recovered as the reformed fly ash, and (f) the coarse powder separated by the air classifier is measured for its content of the unburned carbon and when the measured value is larger than a predetermined threshold value, the coarse powder is introduced again into the heating unit so as to be heated again and when the measured value is smaller than the threshold value, the powder is recovered as the reformed fly ash.

Provided is a system and a method for low-temperature treatment of heavy metals and dioxins in fly ash. In the present disclosure, the fly ash is subjected to tertiary water washing and then separation by pressure filtration with a plate and frame filter press to obtain fly ash after the tertiary water washing. A low-temperature heat treatment is conducted on the fly ash after the tertiary water washing in a stirring reactor by adding an additive combination. Chlorine salts in the fly ash can be effectively removed by the tertiary water washing, which avoids the chlorination of a precursor in the fly ash to form dioxins during the low-temperature pyrolysis, thereby improving a heat reduction efficiency of the dioxins in the fly ash. Moreover, the reduction of a chlorine content in the fly ash can also avoid deactivation of the additives and improve a solidification effect of the heavy metals.