73results about How to "Realize reduction processing" patented technology

The invention relates to an energy regeneration method for solid organic waste alkaline thermal hydrolysis supernate. Solid organic waste mainly comprises kitchen waste and sludge. The energy regeneration method for the solid organic waste alkaline thermal hydrolysis supernate comprises the following steps that (1) after the organic waste, water and alkali hydrolysis agents are proportioned and mixed in a proportioning and preheating tank, heating is conducted, so that the temperature of the materials in the tank is increased to 30-99 DEG C; (2) the materials in the proportioning and preheating tank are sent into a reaction kettle through a pump for the temperature rise reaction, and finally the temperature of the materials is controlled between 100 DEG C and 140 DEG C, and the reaction continues to be conducted for 90-120 minutes; (3) the materials after the hydrolysis reaction are conveyed into a flash evaporation tank for pressure relief and cooling, so that the temperature of the materials is decreased to 50-100 DEG C; (4) clarified liquid and solid are obtained after solid-liquid separation; and (5) the liquid obtained after solid-liquid separation is delivered into an anaerobic digestion system for anaerobic digestion treatment, and thus marsh gas is generated. By the adoption of the energy regeneration method for the solid organic waste alkaline thermal hydrolysis supernate, toxin removal, stabilization, minimization and energy regeneration of the organic waste can be achieved at a time.

A method and a device for realizing partial shortcut nitrification and anaerobic ammonia oxidation of municipal sewage by sludge fermentation belong to the field of municipal sewage treatment and sewage biological treatment. In a first SBR of a reactor, organics and phosphorus are removed, partial shortcut nitrification and denitrification actions are taken, and phosphorus is removed through real-time DO and pH control and sludge discharge. Effluent of the first SBR of the reactor enters a second SBR of the reactor for anaerobic ammonia oxidation reaction, so that the purpose of deep nitrogen and phosphorus removal is achieved. As residual sludge and domestic wastewater are mixed for treatment, the problem that shortcut nitrification of domestic wastewater cannot be stably realized due to low ammonia concentration can be solved, carbon sources are saved, the nitrogen and phosphorus removal efficiency is improved, and meanwhile, the sludge reduction treatment is realized.

The invention discloses a treatment method for excess activated sludge in AOX pollution. The method comprises the steps that modified fly ash carrying ferro-manganese elements is added in the excess activated sludge and evenly mixed, then an oxidant is added for an oxidation reaction, a framework agent is added into a reaction solution after the reaction is completed, the pH value is regulated to range from 8 to 9, plate frame pressure filtration is carried out, and filter liquor and a sludge filter cake are obtained. According to the treatment method, before a fenton-like/persulfate advanced oxidation reaction, the modified fly ash carrying nanometer Fe3O4 and Mn2+ is adopted, so that the adsorption capability and the catalyzing capability of original fly ash are improved, and thus pollutants in the sludge and the sludge are efficiently degraded; organic pollutants in the excess activated sludge are effectively removed, and the water content of the sludge is reduced; harmless and reducing treatment of the sludge and the recycling comprehensive utilization of the fly ash are achieved.

The invention provides a method and a device for performing recovery and resource utilization on heavy metal in waste acid and solves the problems of high waste residue output, high operating expense, low recovery rate and the like. The device for performing recovery and resource utilization on the heavy metal in the waste acid comprises a buffer tank, a pre-filtering device connected with the buffer tank, a first-level membrane system connected with the pre-filtering device, a middle water tank connected with the first-level membrane system, a second-level membrane system connected with the middle water tank, a permeate liquid tank connected with the second-level membrane system, a concentrated liquid tank connected with the second-level membrane system and an electrolysis unit connected with the concentrated liquid tank. The method and the device have the benefits as follows: the reduction treatment of the waste acid is realized, the waste residue output is low, the heavy metal recovery rate is high, and the treatment expanse is low.

The invention discloses a zero emission system device for desulfurization wastewater evaporated by a drying tower after concentration. The zero emission system device comprises a pre-treatment unit, a membrane concentration unit and an air pre-heater bypass drying unit, wherein the pre-treatment unit is connected with the membrane concentration unit; the membrane concentration unit is connected with the air pre-heater bypass drying unit; the pre-treatment unit comprises an integrated high-efficiency sedimentation tank and a microfiltration device; the membrane concentration unit comprises a first-grade special middle-high pressure reverse osmosis membrane system and a second-grade seawater desalination reverse osmosis membrane concentration system; the air pre-heater bypass drying unit comprises a wastewater drying tower feeding box, a drying tower high-level water tank, a spray-drying tower, an air pre-heater and an SCR (Selective Catalytic Reduction) reactor. According to the device disclosed by the invention, a scheme of softening and concentration and evaporation of an air pre-heater bypass drying tower is adopted so that zero emission of the desulfurization wastewater is realized; produced fresh water is recycled and used as supplementing water of demineralized water of a boiler; evaporation is realized by adopting flue gas residual heat and an evaporation tower can be overhauled independently from a host system.

The invention discloses a method for extracting a carbon source from kitchen solid residues through an enzymic method, and belongs to the technical field of kitchen waste resource utilization. The method for extracting the carbon source from the kitchen solid residues through the enzymic method comprises the following steps of water is added into the kitchen solid residues; gelatinization is carried out; the pH is adjusted; diastasum diastace is added; hydrolysis is carried out; centrifugal separation is carried out; and a carbon source extracting solution is obtained or the solid residues arehydrolyzed. According to the method, the enzymic method is adopted for extracting and recycling starch and other carbohydrate in the kitchen solid residues, the starch and other matter in a solid phase are converted into saccharides capable of being dissolved in water, the extracting solution obtained by hydrolyzing the kitchen solid residues through the diastasum diastace is mainly composed of oligosaccharide, reducing sugar and other micromolecular sugar, and can serve as the carbon source for biological denitrification of a sewage treatment plant. In addition, the kitchen solid resides arecatalytically hydrolyzed by the diastasum diastace, the size of the kitchen solid residues is reduced, and while organic matter in the kitchen solid residues is separated and recycled, kitchen wasteis reduced.

The invention belongs to the technical field of waste treatment, and discloses a silicone slurry residue treatment system and a treatment technology thereof. The inlet of an azeotropic evaporation kettle device is connected with a mixing tank for mixing a silicone slurry residue source and an azeotropic solvent, a silane substance in the slurry residue is azeotropically evaporated together with the solvent, the obtained evaporated product enters an evaporated product rectification tower, a silicone high-boiling liquid phase monomer product is obtained from the bottom of the tower, and is sentinto a high-boiling cracking device to recover effective components, and an azeotropic solvent obtained from the top of the tower can be reused; and a residual liquid in the azeotropic evaporation kettle device, is filtered and dried, and then enters a waste powder deactivation device to extract and recover valuable components such as copper and silicon. The silicone slurry residue which is difficult to treat is evaporated and rectified to recover the valuable monomers and produce high-boiling methylchlorosilane, so the useful high-boiling methylchlorosilane in the slurry residue is recycled,the reduction treatment of the silicone slurry residue is achieved, the production cost is greatly reduced, and good economic benefits are obtained.

The invention discloses a wet garbage treatment device. The wet garbage treatment device comprises a wet garbage crushing device and a multi-station wet garbage treatment mechanism, wherein the wet garbage crushing device comprises a crushing device positioned below a water outlet of a water tank; the multi-station wet garbage treatment mechanism comprises a fixed disc, a rotating disc and a rotary driving mechanism; a receiving station, at least one extrusion station, at least one drying station and a blanking station are uniformly distributed on the fixed disc in an annular form; a receivingfilter screen is arranged in the receiving station; an extrusion filter screen is arranged in the extrusion station; a drying device is arranged in the drying station; a blanking through hole is formed in the blanking station; garbage treatment buckets are arranged corresponding to the receiving station, the extrusion station, the drying station and the blanking position one by one on the rotating disc; a blanking pipe is arranged above the receiving station; an extrusion device is arranged above the extrusion station; a water receiving and drainage cabin is formed below the receiving stationand the extrusion station; and a wet garbage can is arranged below the blanking station. The invention also discloses a household integrated multifunctional garbage sorting device.

The invention discloses an oil-containing sludge incineration system for a pressurized fluidized bed and an incineration treatment method. The process comprises the following steps: introducing preheated pressurized air into a fluidized bed incinerator, adding oil-containing sludge into the incinerator to pressurize and combust under a fluidized state, and supplementing auxiliary fuels to keep a combustion state stable if combustion heat is insufficient; enabling high-temperature pressurized wet flue gas generated in the incinerator to preheat pressurized air for combustion of the fluidized bed incinerator, preliminarily cooling the pressurized air into medium-temperature pressurized wet flue gas; continuously performing dust-removal denitration treatment on the flue gas to obtain medium-temperature pressurized clean wet flue gas, and recycling separated fly ash; recycling sensible heat of the medium-temperature pressurized clean wet flue gas through a waste heat recycling system, andrealizing up-to-standard emission through treatment such as a follow-up decompression system and a dehumidifying system. Reduction, harmless and resource utilization as well as energy conservation andemission reduction are realized on the oil-containing sludge, so that combustion efficiency can be greatly improved, equipment unit area processing ability is improved, and emission of harmful substances in flue gas is reduced.

The invention discloses waste catalyst mud water dehydration treatment equipment and a waste catalyst mud water dehydration treatment method, and belongs to the technical field of solid-liquid separation in environmental engineering. The equipment comprises a sludge conveyer device, a complexing agent feeding device, a flocculating agent feeding device and a coiled dehydration device. The technique method comprises the following steps: conveying waste catalyst mud water; adding a complexing agent and a flocculating agent; and carrying out mixing reaction, and coiled dehydration. The moisture content of the waste catalyst mud water can be reduced to about 50% from 99.5% once by only adding the compounded medicine and combining with a coiled dehydration manner. According to the technique and the equipment, deep dehydration is carried out on the waste catalyst mud water; the treatment cost of the sewage is reduced; and a good way is provided for reduction treatment of a waste catalyst. Compared with an existing dehydration technology of combining filtration with a vacuum belt dehydrator, the technology is not easy to block, small in floor area, simple to operate, high in automatic degree and low in operation cost, and does not generate secondary pollution.

The invention provides a method for preparing aluminum-silicon oxide from fly ash. The method comprises the following steps: sequentially carrying out alkali dissolution treatment, acid leaching treatment and roasting treatment on the fly ash. According to the preparation method for extracting the aluminum-silicon oxide from the coal ash, the coal ash is used as a raw material, and undergoes two-stage atmospheric pressure leaching, so the reaction pressure is reduced, the equipment investment is reduced, the preparation process is simple and easy to operate, and the preparation cost is low.

The invention provides a reuse and up-to-standard discharging process of recycled water for chemical fiber viscose waste water. The reuse and up-to-standard discharging process comprises three portions: (1) a pretreatment portion; (2) a reduction portion; and (3) a further treatment portion, wherein in the portion (1), the hardness and partial suspended pollutants are removed, in the portion (2),the reuse and reduction of the produced water are realized, and in the portion (3), the water quality of the produced water is better than the discharge standard. By adopting the reuse and up-to-standard discharging process of the invention, the corresponding treatment scheme is proposed for main problems of the waste water such as hardness, suspended solids, CODCr and the like, the water qualityof the recycled water can be ensured, the discharging amount of the chemical fiber viscose waste water is reduced, and a purpose of comprehensively utilizing the resource and reducing the sewage discharging can be actually realized.

The invention discloses a dust removal device for cooling smelting furnace flue gas by using wastewater. The device comprises a wastewater sedimentation tank, a filter tank, a flue gas washing tank, awater mist smoke washing box and a water-gas separation box, the wastewater sedimentation tank is provided with a first overflow pipe, a wastewater inlet pipe, a first blow-off pipe and a water pumping pipe, and the water pumping pipe is connected to a water pump, a three-way valve, a spray header and a reflux pump; the filter tank is provided with a filter plate frame and a filter water pipe; the flue gas washing tank is provided with a conical plate, a muddy water pipe, a mud scraping mechanism, a second blow-off pipe, a second overflow pipe, a stirring paddle and a flue gas inlet pipe; thewater mist smoke washing box is provided with a high-pressure gas spray pipe, a third overflow pipe, a third blow-off pipe, a water supplementing pipe and an inclined pipe; and the water-gas separation box comprises a snake-shaped condensation pipe, a V-shaped water tank, a chimney outlet and an unpowered hood. According to the invention, wastewater is directly applied to water film dust removaltreatment after being preliminarily precipitated, dust removal methods such as spraying dust removal, water film dust removal and flushing type water bath dust removal are integrated, the consumptionof washing water is greatly reduced, treatment of the wastewater and waste gas is simplified, and the device has popularization value.

The invention relates to the technical field of soil remediation, in particular to a vehicle-mounted skid-mounted soil leaching system, which comprises a milling tunneling device arranged at the frontend of a frame chassis. A crushing device communicated with the milling tunneling device is arranged in a container body; the crushing device is arranged corresponding to the middle stock bin, the middle stock bin is communicated with a negative-pressure air inducing device, the other side of the negative-pressure air inducing device is communicated with a multi-stage rotary leaching device, andthe multi-stage rotary leaching device separates mud and pumps the mud into the centrifugal spin-drying device; tail pulp screened by the multi-stage rotary leaching device enters a purification treatment device; an outlet of the purification treatment device is communicated with slurry of a horizontal cake pressing device, and the horizontal cake pressing device is communicated with a feeding hole of the low-temperature carbonization furnace; a discharge hole of the low-temperature carbonization furnace is communicated with a discharge pipe arranged at the tail part of the container body. Thesystem is reasonable and novel in design and high in automation degree, collection and harmless treatment of contaminated soil and in-situ backfilling of most contaminated soil are achieved, and theadaptability and treatment efficiency of the device are greatly improved.

The invention provides a livestock and poultry manure resource utilization method, and belongs to the technical field of waste treatment and disposal. The livestock and poultry manure resource utilization method provided by the invention comprises the following steps: (1) mixing livestock and poultry manure with sulfuric acid to obtain a mixed feed liquid; (2) carrying out hydrothermal carbonization treatment on the mixed feed liquid, and then carrying out solid-liquid separation on an obtained product system to obtain hydrothermal liquid and a solid carbonized product; (3) mixing the hydrothermal solution with lime water to obtain a liquid containing a bactericide component; mixing the solid carbonized product with a potassium hydroxide solution to obtain a mixed material with the pH value of 6.0-8.0, and drying the mixed material to be used as a soil conditioner; or mixing the mixed material with livestock and poultry manure and urea, and composting and fermenting to obtain the carbon-based organic fertilizer. The method provided by the invention can realize harmless and reduction treatment of the livestock and poultry manure in the whole process, and can realize full-factor resource utilization of the livestock and poultry manure.

The invention provides a method for recycling and reducing blue algae by low-temperature heat and free ammonia combined treatment, and belongs to the fields of alga reduction recycling treatment and disposal. A low-temperature heat and free ammonia combined treatment technology is mainly adopted, and finally, anaerobic digestion is performed to produce methane; the rupture of blue algae extracellular polymers and cell walls and the release of intracellular organic matters are effectively promoted, the biodegradability of soluble organic matters is improved, the accumulation of algal toxins isreduced, richer and available organic substrates are provided for subsequent anaerobic digestion, the retention time is shortened while the methane yield of anaerobic digestion of blue algae is increased, and the organic matters in the algae are transferred from a solid phase to a liquid phase and finally converted into methane, so that the algae reduction is realized.