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401 results about "Existing Treatment" patented technology

Benign prostatic hyperplasia: An overview of existing treatment Neelima Dhingra and Deepak Bhagwat 1 Pharmaceutical Chemistry Division, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh - 160 014, India

System and method for three-dimensional dose verification in radiosurgery

The invention provides a system and method for three-dimensional dose verification in radiosurgery. First a patient's image data and radiotherapy planning data are led in through a data management module, a patient's actual illuminated three-dimensional dose field distribution during the treatment is quickly reconstructed by utilization of a two-dimensional field size dosage collecting module and a three-dimensional dose inversion module; three-dimensional evaluation analysis is performed on a irradiation dose and a planning dose through a dose evaluation module; whether an error is in a permissible range is judged; if the error is in the permissible range, the patient is treated according to a radiotherapy plan, or else the radiotherapy plan is adjusted or a radiosurgery accelerator is subjected to quality control detection, irradiation is not performed on the patient until the dose verification passes, and the consistency between the irradiation dose and the planning dose is guaranteed finally. According to the system and method for three-dimensional dose verification in radiosurgery, the shortcoming of two-dimensional plane dose verification of using water instead of a person prior to existing treatment is overcome, and precise dose verification of three-dimensional space dose field distribution in the patient prior to fractionated treatment and during the fractionated treatment can be implemented.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Treatment method for garbage leachate membrane concentrated solution

InactiveCN104496079AEasy to handleOrganic matter such as humus that is easy to process and recover has been safely and effectivelyMultistage water/sewage treatmentExisting TreatmentReverse osmosis
The invention discloses a treatment method for a garbage leachate membrane concentrated solution. The treatment method comprises the following steps: feeding the garbage leachate membrane concentrated solution into a membrane separating device to remove degradation-resistant organic substances such as humic acid in the concentrated solution, mixing the outlet water of the concentrated solution with a reverse osmosis concentrated solution, then removing scaling ions such as Ca<2+> and Mg<2+> and other inorganic substances in the concentrated solution by softening, precipitating and filtering, introducing the outlet water into the reverse osmosis membrane to further concentrate, and realizing up-to-standard release of produced water; and finally, spraying back the concentrated water back to an incinerator for incineration, evaporative crystallization or outward processing. The treatment method can be used for realizing efficient treatment of the garbage leachate membrane concentrated solution, and has the advantages of being stable in operation, high in treatment efficiency, low in operation cost, convenient to maintain and manage, and the like in comparison with the existing treatment method for the garbage leachate membrane concentrated solution.
Owner:BEIJING SOUND ENVIRONMENTAL ENG +1

Treatment method of fused salt chlorination slag

ActiveCN103243220AEliminate radioactivityProcess efficiency improvementPregnant leach solutionSlag
The invention provides a treatment method of fused salt chlorination slag. The method comprises the following steps: leaching fused salt chlorination slag by water or a dilute acid solution; then, extracting and back-extracting the leaching liquid by using a blank organic phase I as an extractant and an alkaline solution I as a back-extractant so as to obtain a back-extract I; after adjusting the acidity of the back-extract I by acid, extracting and back-extracting the back-extract I by using a blank organic phase II as the extractant and an alkaline solution II as the back-extractant so as to obtain a residual extraction solution II and a back-extract II; adding a scandium precipitator to the residual extraction solution II and filtering and calcining to obtain scandium oxide; and mixing the back-extract II and a thorium and uranium precipitator, and filtering to obtain a thorium and uranium enriched substance. Compared with existing treatment of fused salt chlorination slag, the method provided by the invention not only extracts scandium with high additional value, but also recovers thorium and uranium in waste residue, so that radioactive contamination is eliminated. Meanwhile, chemical materials used in the treatment method provided by the invention are simple and easy to obtain, and the method is lower in cost and simple in process.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

Fused salt heat treatment method for rubbish incineration fly ash

The invention discloses a fused salt heat treatment method for rubbish incineration fly ash, and belongs to ash treatment methods. The method solves the problems that the treatment temperature is high, the energy consumption is large and poisonous trace elements cause secondary pollution through existing treatment methods for the rubbish incineration fly ash. The method includes the steps of preparing mixed fused salt, carrying out fusing heat treatment, detecting the content of heavy metal and extracting and recovering the heavy metal. According to the method, chlorides, sulfate and partial heavy metal in the fly ash can be dissolved out through the fusing, heat storing and reacting characteristics of the fused salt, processes are relatively simple, reaction conditions are mild and easy to control, leaching of the heavy metal in the fly ash can be effectively controlled in an environment, the treated fused salt can be recycled, deep enrichment and recovery of the dissolved heavy metal can be carried out, the harm level of treated residues is greatly lowered, building material utilization and secure landfill of the treated residues can be conveniently carried out, secondary pollution is effectively reduced, the resource utilization efficiency is improved, and light reduction, harmlessness and resource utilization of the rubbish incineration fly ash can be realized synchronously.
Owner:HUAZHONG UNIV OF SCI & TECH

Treatment process of livestock died of epidemic diseases

The invention related to a treatment process of livestock died of epidemic diseases. The invention solves problems which disease the transmission and the environmental pollution caused by a improper treatment of existing livestock died of epidemic diseases while existing treatment ways have a high cost and a low energy utilization rate. The process comprises following steps: step 1: livestock died of epidemic diseases will be cut up by a chopping machine; step 2: chopped livestock are cooked under high temperature in a closed container in order for the homogenization of dead livestock; step 3: solid organic matters, biological oil and water after high-temperature cooking are separated by a separator; step 4: solid organic materials separated in step 3 are delivered to a charring furnace for the high-temperature, anaerobic and closed charring to form charcoal; step 5: water separated in step 3 is delivered to a biogas digester for biogas fermentation to create biogas; step 6: biological oil separated in step 3 is used as the heating fuel of the high-temperature cooking in step 2 and the charring in step 4. The complete process system in the invention has a good closure, reducing risks in the disease transmission; reducing the consumption of fuel provided externally.
Owner:ZHEJIANG BULAIMENG AGRI SCI & TECH

Combined treatment method of N, N-dimethylformamide (DMF) wastewater

The invention discloses a combined treatment method of N, N-dimethylformamide (DMF) wastewater, relates to the field of environment protection and water pollution treatment, and in particular relates to a combined treatment method for treating the N, N-DMF wastewater. The method specifically comprises the following steps: firstly decomposing the DMF wastewater into dimethylamine and formate under an alkali condition, then carrying out air stripping, introducing the dimethylamine waste gas generated in the air stripping into a bio-trickling tower for treatment, and directly carrying out biochemical treatment on the air-stripped wastewater. According to the combined treatment method disclosed by the invention, a physic-chemical method and a biological method are combined, a feasible process for treating the DMF wastewater is provided, the toxicity of the DMF wastewater is reduced by means of the physical-chemical method, the biodegradability of the DMF wastewater is improved, and the generated dimethylamine organic waste gas and wastewater are subjected to advanced treatment by means of the bio-chemical method. By adopting the combined treatment method disclosed by the invention, the effective and economical treatment of the DMF wastewater is achieved, and the problems of secondary pollution, difficult regeneration, low efficiency and the like easily caused by the existing treatment methods of adsorption, extraction, chemical oxidization and the like are solved.
Owner:NANJING TECH UNIV

Processing apparatus of livestock died of epidemic diseases

The invention related to a processing apparatus of livestock died of epidemic diseases. The invention solves problems that disease transmission and environmental pollution caused by improper treatment of existing livestock died of epidemic diseases while existing treatment ways have high cost and low energy utilization rate. The apparatus comprises a shredder and a high temperature cooking kettle connected with the shredder, characterized in that the outlet port of the high temperature cooking kettle is connected with a separating apparatus for separating solid organic matter, bio-oil and water; the solid organic matter outlet of the separator is connected with a carbonization furnace; the bio-oil outlet of the separator is connected with a burner that provides thermal energy for the high temperature cooking kettle and the carbonization furnace; the water outlet of the separator is connected with a methane tank. The whole system of the invention has good sealing property, little contact with outside, which reduces the risk of disease propagation. The apparatus employs an inner cycle energy supply mode, and takes the bio-oil separated during processing as fuel, which not only reduces fuel consumption of external supply, and reduces the risk of disease propagation by not outputting the bio-oil as a kind of product.
Owner:ZHEJIANG BULAIMENG AGRI SCI & TECH

Integrated treatment method for high-salinity and high-concentration refractory organic wastewater resulted from cellulose ether production

The invention discloses an integrated treatment method for high-salinity and high-concentration refractory organic wastewater resulted from cellulose ether production. The method comprises the steps of (1) carrying out pretreatment on to-be-treated wastewater through coagulating sedimentation and fenton reaction in sequence; (2) carrying out biochemical treatment on fenton reaction effluent through cellulase hydrolysis, anaerobic treatment, first-stage contact oxidation and second-stage contact oxidation in sequence, feeding cellulose to carry out degradation, anaerobic treatment, first-stage contact oxidation and second-stage contact oxidation processes on the wastewater in the cellulose hydrolysis process, adding a salt-tolerant fungicide of producing the cellulose ether to carry out strengthened treatment on the wastewater; and (3) carrying out deep treatment on second-stage contact oxidation effluent through the fenton reaction and finally discharging the effluent. Compared with an existing treatment method, the integrated technology has the characteristics of being high in pertinence, economic and environment-friendly; and problems that the wastewater is high in salinity, high in concentration and refractory are solved for enterprises that produce the cellulose ether.
Owner:ENVIRONMENTAL SCI RES & DESIGN INST OF ZHEJIANG PROVINCE

Oxynitride waste gas treatment device and oxynitride waste gas treatment method

The invention belongs to the technical field of waste gas treatment, and particularly relates to an oxynitride waste gas treatment device and an oxynitride waste gas treatment method. The oxynitride waste gas treatment device comprises an acid washing unit, a water washing unit, an alkali washing unit and a draft fan, wherein the acid washing unit is provided with a plurality of acid washing absorption towers which are connected in series; the water washing unit is arranged at the latter station of the acid washing unit and connected with the acid washing unit in series, and comprises a water washing absorption tower; the alkali washing unit is arranged at the latter station of the water washing unit and connected with the water washing unit in series, and comprises an alkali washing absorption tower; the bottom of each absorption tower is respectively provided with a waste gas inlet and a liquid outlet, and the top is respectively provided with a waste gas discharge port and a liquid inlet; the top of the first acid washing absorption tower is provided with an air inlet; each absorption tower is provided with a suction pump of which the inlet and outlet are respectively connected with the liquid outlet and the liquid inlet; an inlet of the draft fan is connected with a waste gas discharge port of the alkali washing absorption tower, and an inlet of the draft fan is connected with an inlet of a gas-liquid separator; and a gas outlet of the gas-liquid separator is connected with a gas inlet of a dry-type adsorption tower. The invention solves the following problems: the existing treatment device can not absorb NO, but only can absorb NO2, and abundant industrial waste salts generated in the waste gas treatment process can bring about secondary pollution.
Owner:SHOUGUANG FUKANG PHARMA

Thermo-mechanical treatment method for aluminum alloy

ActiveCN105543738ASimplify Manufacturing RoutingImprove fine dispersionPre deformationExisting Treatment
The invention discloses a novel electromagnetic forming and aging thermal treatment combined method for improving the strength and toughness of an aluminum alloy and belongs to the technical field of thermo-mechanical treatment of the aluminum alloy. The method includes the following steps of solution-and-quenching treatment, two-stage aging treatment and electromagnetic forming. Compared with an existing process including the steps of pre-deformation, solution and quenching, final deformation and artificial aging, the novel electromagnetic forming and aging thermal treatment combined method has the beneficial effects that the defects that the existing treatment process is complex, secondary deformation is likely to be caused, and use performance is lowered are overcome, the manufacturing process route for strengthening the aluminum alloy through thermal treatment is simplified, and the phenomena of secondary deformation and performance degradation in a traditional manufacturing process are avoided; and it is proved by tests that an aluminum alloy component formed through the method is free of obvious secondary deformation, and the intensity and plasticity of materials are improved compared with materials obtained through the traditional process. The thermo-mechanical treatment method of the aluminum alloy can be widely used for the fields of aerospace and the industry.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for treating cellulose acetate butyrate production wastewater

InactiveCN104129893ASolve non-ChineseSolve difficult problems that cannot be biochemicallyMultistage water/sewage treatmentNature of treatment waterTreatment effectSludge
The invention belongs to the field of wastewater treatment, and in particular relates to a method for treating cellulose acetate butyrate production wastewater. The method solves the technical problems of complex flow, high running cost and large sludge quantity of an existing treatment process. For solving the technical problems, the invention provides the method for treating the cellulose acetate butyrate production wastewater and the method comprises the steps of 1) treating the cellulose acetate butyrate production wastewater in an adjusting tank for 12-16h, and then treating the wastewater in an immobilized photosynthetic bacteria tank for 46-52h; 2) settling the effluent of the immobilized photosynthetic bacteria tank in a primary settling tank for 2-3h; 3) treating the supernate obtained after settling in the primary settling tank in an anaerobic tank for 20-28h; 4) treating the effluent coming from the anaerobic tank in an aerobic tank for 20-28h; 5) settling the effluent coming from the aerobic tank for 2-3h in a secondary settling tank, and then discharging the supernate reaching standards through a discharge opening or recycling the supernate. The method disclosed by the invention has the advantages of good treatment effect and low running cost, and can stably realize up-to-standard discharge.
Owner:SICHUAN NITROCELLULOSE CORP +1

Treatment method of hexavalent chromium ion containing industrial wastewater

The invention relates to a treatment method of hexavalent chromium ion containing industrial wastewater for innocent treatment of industrial wastewater, which overcomes the deficiency that existing treatment methods of hexavalent chromium ion containing wastewater are high in cost and easy to cause secondary pollution. The technical scheme is that the treatment method comprises the following steps: by taking FeC13.6H2O and FeSO4.7H2O as raw materials and ammonium water as a precipitator, quickly stirring, aging at high temperatures, washing, and drying to prepare magnetic solid particles; preparing polyacrylamide flocculant liquor, putting the magnetic solid particles in the prepared polyacrylamide flocculant liquor, stirring at a high speed, quickly settling the magnetic solid particles under an applied magnetic field, and drying the precipitate to prepare modified magnetic particles; adding the modified magnetic particles into the hexavalent chromium ion containing wastewater, adjusting the pH to 6 by an acid, and stirring and separating, wherein the upper layer is a dechromed clean liquid; and adding alkali liquor into the modified magnetic particles in the lower layer, stirring and separating, and repeatedly using the modified magnetic particles. The method is economical and practical, free from secondary pollution and quick in settling velocity, and hexavalent chromium and the modified magnetic particles can be recovered.
Owner:SOUTHWEST PETROLEUM UNIV

Method for utilizing enhanced pretreatment to promote anaerobic digestion of excess sludge

The invention relates to a method for utilizing enhanced pretreatment to promote the anaerobic digestion of excess sludge, belonging to the technical field of solid waste treatment. The method comprises the following steps of gravity concentrating excess sludge in urban sewage treatment plants, and then adding certain amount of sodium hypochlorite, stirring the sodium hypochlorite fast with the excess sludge, and then feeding the mixture into an ultrasonic reactor to perform ultrasonic treatment. With the coaction of the ultrasonic and the sodium hypochlorite, the bacterial cell wall structure in the sludge is damaged, the inclusion of the cell is discharged, the content of soluble organic substance in the water is increased, after certain time of treatment, the sludge is fed into an anaerobic digestion reactor to perform subsequent medium temperature anaerobic digestion; the biomass gases generated by the anaerobic digestion are comprehensively utilized through a gas collection device. The concentration of SCOD (soluble chemical oxygen demand) in the sludge liquid phase is improved by about 27 times after the treatment, the biomass gas yield is increased by 54.4%, and the content of methane in the biomass gas is improved by about 10%, so that the energy consumption of the ultrasonic treatment is reduced greatly. With the adoption of the method provided by the invention, for the sewage treatment plants with different sizes, a good effect can be obtained by performing corresponding reconstructions on the existing treatment facilities.
Owner:NANKAI UNIV
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