Rio de Janeiro: ABNT (NBR ) (In Portuguese) 7. Brazilian Association of extract from solid residues. Rio de Janeiro: ABNT (NBR ). Brazilian Association of Technical Norms, in ABNT NBR Procedure for obtention leaching extract of solid wastes (Rio de Janeiro, ), p. 16 8. ABNT NBR , Solid Waste: Classification, Brazilian Association of Technical Standards, Rio de Janeiro, Brazil. ABNT NBR , Leaching of.
|Published (Last):||14 March 2016|
|PDF File Size:||6.99 Mb|
|ePub File Size:||17.4 Mb|
|Price:||Free* [*Free Regsitration Required]|
The higher the addition the more intense this effect. Which for companies aabnt is of fundamentally important because it guarantees the quality of the final product. Chemical pollution of aquatic environment by priority pollutants and its control. This work also contributes to the reduction of the environmental 100055 and favors the sustainable development of the heavy clay ceramics contributing to the improvement of the quality of the pieces.
This factor causes the number of researches to increase the incorporation of a series of residues in ceramic mass, such as glass, 1415 ashes of the most diverse sources, 16 mining wastes, 19 sludge from a wide variety of treatment sources, 20 waste from heavy clay ceramic process 23 and other wastes.
Characterisation abjt fired—clay bricks incorporating biosolids and the effect of heating rate on properties of bricks. The NBR displays a list of known hazardous materials and their characteristics and can be related to the Code of Federal Regulations title 40, 1005 of the United States 40 C. The structural or heavy clay ceramics industry is a basic activity making civil construction possible, from the simplest to the most sophisticated.
Lead hazard evaluation for cathode ray tube monitors in Brazil
Thus, the lead removal conditions were not effective to downgrade the hazardousness of the waste. Environmental profile of ceramic tiles and their potential for improvement. Such a tool considers industrial wastes as by-products or 110005 materials that can feed another industry. The samples were placed inside alumina crucibles, which were then placed inside the furnace.
Three out of six parameters were capable of satisfactorily removing the lead and turning the post-procedure waste lead-leaching safe. NBR A 5. The samples are press abny diameters of 73 mm and thickness of 15 mm identified, weighed, and measured. The amount of sample prepared was 1 kg for each formulation and then homogenized manually with the help of a metal spatula and then an eccentric mixer.
Natural clay substitution by calamine processing wastes to manufacture fired bricks. Although the sector has a great environmental degrading potential due to mineral extraction by the high consumption of clay. Ukwatta A, Mohajerani A. A history of global metal pollution.
Study for vitreous waste recovery in the formulation of heavy clay ceramics
Figure 3 Loss of ignition of the standard mass and formulations used in this research. Recycling CRTs As stated by Okadaa material containing lead may scatter and result in oral intake of the dispersed lead by humans, which ultimately results in health problems. Therefore, it is possible to analyze the difference in the linear retraction of burning of the formulations. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License.
According to Figure 3the loss of ignition of the standard mass and of the formulations was coherent, since they presented values between 5. The panel component is the heaviest part and it contains elements such as barium, strontium, and yttrium. Geochimica et Cosmochimica Actav.
This is an open-access article distributed under the terms of the Creative Commons Attribution License. The burning tends to reduce the amount of organic material present in the clays and its dimensions too. The CRTs were split into three, according abng the previous delimitation Fig. With this waste it can possible of introducing faster firing cycles. The economy already gives indications that will grow again which will improve the construction market.
The glass has three abt According to Menadthe lead in the CRTs is responsible for the radiation shielding and for stabilizing the glass.
There was a problem providing the content you requested
Segundo van Geen et al. Geological assessment and utilization with drinking water treatment sludge in brick manufacture. Cathode ray tube CRT monitors are electronic equipment mainly made of glass, polymers and metals.
Environmental Engineering Lead hazard evaluation for cathode ray tube monitors in Brazil. Bases para o futuro. This favors the formation of liquid phase in the sintering process. Utilization of waste glass to enhance physical—mechanical properties of fired clay brick. Despite having proper landfills for the disposal of CRT monitors, most of them end up in improper landfills or in no landfill at all Oliveira, Currently produced ceramic coatings are generally composed of three distinct layers: It is clear that recycling waste of CRT abn important not only for mitigating environmental issues, but also for maximizing 10050 value of abny waste Zhang et al.
Therefore, innovative approaches to the production of heavy clay ceramics that are less dependent on virgin sources are highly encouraged from the perspective of protecting natural resources and sustainable development.