摘要:
PURPOSE: A radioactive pollution metal surface painting removal and paint remover reproducer is provided to reduce amount of radioactive waste by removing polluted paint only. CONSTITUTION: A chemical processing part dips radioactive polluted metal in organic solvent. A physical processing part(20) physically comes off paint which is still left on the surface of radioactive polluted metal which is chemically processed. A waste organic liquid deposit tank(40) stores waste paint and waste organic solvent discharged from the chemical processing part and the physical processing part. A heater heats the waste organic solvent stored in the waste organic liquid deposit tank. A vacuum pump(62) is installed in the rear side of a paint exhaust pipe and maintains the inner side of the waste organic liquid deposit tank with a decompression state.
摘要:
PURPOSE: A method and a processing method thereof are provided to improve the removal rate of a radionuclide by using phosphate-modified clay which is reformed to phosphate. CONSTITUTION: A clay material is cleaned with hydrogen peroxide and the distilled water. The clay is repetitively cleaned until the peak of the impurity, which is included in the supernatant, disappears. The cleaned clay of 10g and phosphate of 1000 or 2000 mg/L are agitated for 12 or 36 hours at 100 or 300 rpm. The clay, which is reformed to the phosphate, is formed by executing a drying process after removing surplus phosphate.
摘要:
PURPOSE: A method and a system for chemically cleaning a vapor generator of a nuclear power plant are provided to environmentally friendly process radioactive waste liquor by using condensing and filtering technique. CONSTITUTION: Ammonia included in waste liquor is removed(S1). EDTA and heavy metal which are dissolved in the waste liquor are separated from water(S2). Flux is removed by a first filtering process(S3). The first filtered liquid is purified by an ultrafiltration membrane filter(S4). Organic materials and ionic materials included in the purified water are removed with an activated carbon(S5). A second filtered liquid is purified by a reverse osmosis membrane filter(S6). The processed water is exhausted(S7).
摘要:
An apparatus for incinerating household waste having a wastewater incineration function for foodwaste is provided to reduce the amount of ammonia used for removing nitrogen oxides by using the wastewater as a neutralizer for removing the nitrogen oxides. An apparatus for incinerating household waste having a waste water incineration function for food waste comprises an incinerator(1). The incinerator provides overlying water of a storage tank(33) to a supply tank(34) such that the overlying water is provided to a nozzle(3) installed at a secondary combustion exit at a preferred timing. A selective non-catalyst reduction device(10) for spraying ammonia water is installed at an upper side of the nozzle. A nozzle(20) is installed below the nozzle such that the nozzles are connected to the supply tank.
摘要:
PURPOSE: An evaporator for treating radioactive wastewater is provided to decrease the burden of operating a cooler by condensing low temperature vapor in a condenser. CONSTITUTION: A main evaporator(10) evaporates moisture included in wastewater by heating the wastewater. An assistant evaporator(20) heats the wastewater supplied from the main evaporator using steam generated from the main evaporator. Condensers(31,32) condense steam used as the heating source of the assistant evaporator. A condensate receiver tank(33) stores condensed water generated from the condenser. A main evaporator preheater(40) is installed between the main evaporator and assistant evaporator. [Reference numerals] (AA) Waste liquid; (BB) Exhaustion
摘要:
A high temperature high pressure disposal system of liquid wastes is provided to reduce generation of noxious gas during incineration by thermally decomposing liquid wastes under a high temperature high pressure condition through gasification. A high temperature high pressure disposal system of liquid wastes, includes a liquid waste supply unit(10), a high temperature high pressure reaction unit(20), a cooling unit(30), a washing unit(50), and a secondary combustion unit(60). The liquid waste supply unit supplies an appropriate volume of liquid wastes to be disposed. The high temperature high pressure reaction unit is connected to the liquid waste supply unit, and has one or more connection ports for connection of burners. The high temperature high pressure reaction unit produces synthetic gas through thermal decomposition of liquid wastes and gasification. The cooling unit is arranged at one side of the high temperature high pressure reaction unit, and equipped with a coolant spray nozzle for cooling the produced synthetic gas. The washing unit neutralizes noxious gas from the synthetic gas supplied from the cooling unit. The secondary combustion unit is connected to the washing unit, and burns the refined synthetic gas so as to produce energy.
摘要:
A system for combusting difficult to combust fluid such as waste fluid wherein fuel and gaseous oxidant combust in a hot combustion gas chamber to form a hot combustion gas mixture which is accelerated to a high speed and at a steady, i.e. non-pulsing, flow is then used to atomize and then combust the fluid.