ABNT NBR 12808 PDF

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Waste Water Treatment Unit. A wastewater treatment plant to treat both the sanitary and industrial effluent originated from process, utilities and off site units of the refinery is described. The purpose is to obtain at the end of the treatment plant, a water quality that is in compliance with contractual requirements and relevant environmental regulations. Primary de-oiling, Equalization, Neutralization, Secondary de-oiling.

Hanford facility dangerous waste permit application, hazardous waste treatment units. Revision 1. Radiological emergency response in a medical waste treatment unit. Suzuki, Fabio F. Radioactive materials are largely used in medicine, research and industry.

The amount of radioactive material employed in each application varies from negligible to large and it can be in sealed or non-sealed form. The presence of radioactive material inside the truck was confirmed; however, its origin and nature were not possible to be determined because the truck had collected medical waste in several facilities.

So, an operation in order to segregate and identify that material was carried out. During the operation, a second collecting truck presenting abnormal radiation levels arrived to the unit and the same procedure was carried out on that truck. In both situations, the contaminated objects found were infantile diapers. Samples of the radioactive materials were submitted to gamma spectrometry and the radionuclide was identified as Iodine Since that attendance, similar occurrences have been frequent.

These events suggest that it is necessary a better control of the radioactive waste at the generating facilities and there should be basic radioprotection orientations to the discharging patients that were submitted to nuclear medicine procedures.

Department of Energy DOE , and identifies the risks that formed the basis for the DOE contingency included in the performance baseline. Prior to approval of the performance baseline Critical Decision-2 project cost contingency was evaluated during a joint meeting of the Contractor Management Team and the Integrated Project Team for both contractor and DOE risks to schedule and cost.

The performance baseline for the project was approved in December Garman Design parameters for waste effluent treatment unit from beverages production. Based on a successful experimental result from laboratory and bench scale for treatment of wastewater from beverages industry, an industrial and efficient treatment unit is designed and constructed. The broad goal of this study was to design and construct effluent, cost effective and high quality treatment unit. The used technology is the activated sludge process of extended aeration type followed by rapid sand filters and chlorination as tertiary treatment.

Experimental results have been con Directory of Open Access Journals Sweden. Full Text Available Based on a successful experimental result from laboratory and bench scale for treatment of wastewater from beverages industry, an industrial and efficient treatment unit is designed and constructed. So it is recommended to reuse treated effluent in textile industry in dyeing process. Because dangerous waste does not include source, special nuclear, and by-product material components of mixed waste , radionuclides are not within the scope of this documentation.

The information on radionuclides is provided only for general knowledge. Biochemical oxidation process is the effective method for detoxification of organic waste and decontamination of radionuclide by bio sorption. The result process are sludges and non radioactive supernatant.

Dio chemical oxidation process engineering unit for continuous treatment of organic radioactive liquid waste on the capacity of 1. Solution on the reactor R are added by bacteria, nutrition and aeration using two difference aerators until biochemical oxidation occurs. The sludge from reactor of R are recirculated to the settling tank of R and on the its reverse operation biological sludge will be settled, and supernatant will be overflow.

Waste treatment. Numerous types of waste are produced by the nuclear industry ranging from high-level radioactive and heat-generating, HLW, to very low-level, LLW and usually very bulky wastes.

These may be in solid, liquid or gaseous phases and require different treatments. Waste management practices have evolved within commercial and environmental constraints resulting in considerable reduction in discharges. The discussion presented in this document identifies aspects of the training program specific to the PFP Treatment and Storage Unit. The training program includes specifications for personnel instruction through both classroom and on-the-job training.

Training is developed specific to waste management duties. Hanford Facility personnel directly involved with the PFP Treatment and Storage Unit will receive training to container management practices, spill response, and emergency response. These will include, for example, training in the cementation process and training pertaining to applicable elements of WAC 1 d. Applicable elements from WAC 1 d for the PFP Treatment and Storage Unit include: procedures for inspecting, repairing, and replacing facility emergency and monitoring equipment; communications and alarm systems; response to fires or explosions; and shutdown of operations.

The hazardous waste regulations require the chemical portion of mixed waste to be to be treated to certain standards. The total volume of low-level mixed waste at the nine sites is equivalent to 7, drums, with individual site volumes ranging from 1 gallon of waste at the Pinellas Plant to 4, drums at Los Alamos National Laboratory.

Nearly all the sites have a diversity of wastes requiring a diversity of treatment processes. Treatment capacity does not exist for much of this waste , and it would be expensive for each site to build the diversity of treatment processes needed to treat its own wastes.

Work on the plan started in October , and the plan was finalized in March The plan uses commercial treatment , treatability studies, and mobile treatment units. The plan specifies treatment technologies that will be built as mobile treatment units to be moved from site to site. Mobile units include bench-top units for very small volumes and treatability studies, drum-size units that treat one drum per day, and skid-size units that handle multiple drum volumes.

After the tools needed to treat the wastes were determined, the sites were assigned to provide part of the treatment capacity using their own resources and expertise. The sites are making progress on treatability studies, commercial treatment , and mobile treatment design and fabrication. To date, this is the only plan for treating waste that brings the resources of several DOE sites together to treat mixed waste.

It is the only program actively planning to use mobile treatment coordinated between DOE sites. Sorption-reagent treatment of brines produced by reverse osmosis unit for liquid radioactive waste management.

The results of the pilot plant tests of the sorption-reagent decontamination of high salinity radioactive waste brines remaining after the low-salinity liquid radioactive waste LRW treatment in the reverse-osmosis unit from long-lived radionuclides are presented.

At joint application of the reverse-osmosis and sorption-reagent technologies total volume of solid radioactive waste SRW decreases up to fold as compared to the technology of cementation of reverse osmosis brines. Brines decontaminated from radionuclides are then diluted down to the ecologically safe total salts content in water to be disposed of.

Tests were performed to compare the efficiency of technologies including evaporation of brines remaining after reverse osmosis process and their decontamination by means of the sorption-reagent method. It was shown that, as compared to evaporation, the sorption-reagent technology provides substantial advantages as in regard to radioactive waste total volume reduction as in view of total cost of the waste management.

Design of chemical treatment unit for radioactive liquid wastes in Serpong nuclear facilities. The chemical treatment unit for radioactive liquid wastes arising from nuclear fuel fabrication, radioisotopes production and radiometallurgy facility has been designed.

The design of chemical processing unit is based on the characteristics of liquid wastes containing fluors from uranium fluoride conversion process to ammonium uranyl carbonate on the fuel fabrication. The chemical treatment has the following process steps: coagulation-precipitation of fluoride ion by calcium hydroxide coagulant, separation of supernatant solution from sludge, coagulation of remaining fluoride on the supernatant solution by alum, separation of supernatant from sludge, and than precipitation of fluors on the supernatant by polymer resin WWS The processing unit is composed of 3 storage tanks for raw liquid wastes capacity 1 m 3 per tank , 5 storage tanks for chemicals capacity 0.

Commercial waste treatment R and D needs in the United States. The mission of the commercial waste treatment program is to establish treatment technology for safe and efficient management of high-level and transuranic wastes from reprocessing and fuel fabrication and special wastes from other fuel cycle activities. The four functional objectives that must be achieved to fulfill the mission are: 1 define waste product and treatment process performance requirements; 2 specify adequately safe waste products and verify their performance; 3 specify adequately efficient treatment processes and equipment and verify their performance; 4 solve existing waste treatment problems using verified products and processes.

Although commercial waste treatment technology is in many respects highly advanced, there remains a number of areas where significant research and development is needed. These are: 1 technically-based performance requirements for both waste products and treatment processes; 2 pilot-scale radioactive demonstration of liquid-fed ceramic melting process and equipment for borosilicate glass; 3 non-glass TRU waste product and treatment process development; 4 waste product performance testing and predictive modeling; 5 quality verification for treatment processes.

In the treatment of wastes , such as liquid radioactive effluents, it is known to remove radionuclides by successive in situ precipitation of cobalt sulphide, an hydroxide, barium sulphate and a transition element ferrocyanide, followed by separation of the thereby decontaminated effluent. In this invention, use is made of precipitates such as obtained above in the treatment of further fresh liquid radioactive effluent, when it is found that the precipitates have additional capacity for extracting radionuclides.

The resulting supernatant liquor may then be subjected to a further precipitation treatment such as above. Decontamination factors for radionuclides of Ce, Ru, Sr and Cs have been considerably enhanced. Process engineering design of pathological waste incinerator with an integrated combustion gases treatment unit. Management of medical wastes generated at different hospitals in Egypt is considered a highly serious problem.

The objective of this work is to develop the process engineering design of an integrated unit , which is technically and economically capable for incinerating medical wastes and treatment of combustion gases. The residence time of combustion gases in the ignition, mixing and combustion chambers was found to be 2s, 0. This will ensure both thorough homogenization of combustion gases and complete destruction of harmful constituents of the refuse. The adequate engineering design of individual process equipment results in competitive fixed and operating investments.

Processes for CO2 capture. Context of thermal waste treatment units. State of the art. Extended abstract. For most of industrial sectors, Greenhouse Gases GHG such as carbon dioxide CO 2 are considered as serious pollutants and have to be controlled and treated. The issues of CCS applied to thermal waste treatment units are quite similar to those related to power plants CO 2 flow, flue gas temperature and pressure conditions. The problem is to know if the CO 2 produced by waste treatment plants can be captured thanks to the processes already available on the market or that should be available by It seems technically possible to adapt CCS post-combustion methods to the waste treatment sector.

But on the whole, CCS is complex and costly for a waste treatment unit offering small economies of scale. However, regulations concerning impurities for CO 2 transport and storage are not clearly defined at the moment.

Consequently, specific studies must be achieved in order to check the technical feasibility of CCS in waste treatment context and clearly define its cost.

Handling and treatment of low-level radioactive wastes from gaseous diffusion plants in the United States of America. Gaseous diffusion plants in the United States of America currently generate very small quantities of low-level radioactive wastes. These wastes consist primarily of airborne effluent solid trapping media and liquid scrubber solutions, liquid effluent treatment sludges, waste oils and solvents, scrap metals and conventional combustible wastes such as floor sweepings, cleaning rags and shoe covers.

In addition to waste emanating from current operations, large quantities of scrap metal generated during the Cascade Improvement Program are stored above ground at each of the diffusion plants.

The radionuclides of primary concern are uranium and 99 Tc.

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