The sludge was characterized according to ABNT NBR /, following the procedures for obtaining leached extract (ABNT NBR /), to classify . Brazilian Association of Technical Norms, in ABNT NBR Procedure for obtention leaching extract of solid wastes (Rio de Janeiro, ), p. 16 8. Brazilian Association of Technical Regulation. Procedures for obtainment of leaching extract from solid residues. Rio de Janeiro: ABNT (NBR ).
|Published (Last):||7 May 2010|
|PDF File Size:||14.23 Mb|
|ePub File Size:||8.67 Mb|
|Price:||Free* [*Free Regsitration Required]|
This procedure was adopted in order to guarantee the same conditions established by the industrial process.
Although the sector has a great environmental degrading potential due nbd mineral extraction by the high consumption of clay. Chemical and mineralogical characterization tests of the raw materials carried out.
Rotator for non volatile substances TE-743
Sludge production and composition vary with season and daytime. As reported in several international publications, waste of CRT monitors represents an environmental threat and yet it has not been classified under 1005 law. The presence of Al and Si comes from using aluminum sulphate coagulants during water treatment. Collection was performed in Februaryis collecting around 90 kg sludge that was packed in plastic drums of 30 kg.
The sanitation in this country is still precarious. The waste was classified based on the American methodology SW B, 29 and the Hbr technical references: Samples were deformed so that the LVDT’s were not able to perform displacement measurements, interrupting testing continuity.
According to Menadthe lead in the CRTs is responsible for the radiation shielding and for stabilizing the glass.
Rotator for non volatile substances TE – Tecnal
Additions from enamel waste contributed to the increase of physical properties such as burning retraction, mechanical resistance to bending, and decreased water absorption and loss of ignition. The use of ceramic sludge and recycled glass to obtain engobes for manufacturing ceramic tiles.
The parts dismantled from the CRT monitors are shown in Fig. Mechanical testing Compaction tests were performed at intermediate compression pressure for soil — WTP sludge mix and under interchanged pressures for soil —STP sludge mix.
The sludge residue derived from WTPs has a great amount of quartz, kaolinite and little of hematite.
Thus, we can assert that the amount of aluminum-sulfate based coagulant added in the water treatment we assessed was higher than in other WTPs that have already surveyed in this country. American Association of Highways and Transportation Officials.
Hence, in the coming years, the amount of sludge produced every day tends to increase due to the implementation of new service stations. As the soil under study is an A type, its behavior is related to particle size and compactness. Cathode ray tube CRT monitors are electronic equipment mainly made of glass, polymers and metals. Neck, funnel and panel parts Fig 3. The presence of other compounds can be explained by the presence of impurities qbnt of the residue nature.
Compaction tests were performed at intermediate compression pressure for soil — WTP sludge mix and under interchanged pressures for soil —STP sludge mix. The methodology involved analyzing the technological properties of various compositions.
Abstract Cathode ray tube CRT monitors are electronic equipment mainly made of glass, polymers and metals. More specifically the enamel industry as a raw material to incorporated with the manufacture of ceramic blocks for masonry.
In order to select the RM model, classical model applicability was evaluated. In Brazil, the generation of solid waste reaches significant amounts, since there are few solutions for final disposal.
Paulo Donato Castellane, km 5 The ceramic mass supplied by a ceramic company from South of Santa Catarina, Brazil used for the manufacture of structural blocks. It is possible to observe zbnt in the linear retraction of drying the results abtn with the increase of the added waste.
Sample F displayed the best results as it was able to reduce the lead in the glass to a minimum in comparison ngr the other 5 samples. Cathode ray tube monitors The CRT used in television and computer screens represents one of the main sources of e-waste as flat screens have replaced them over the last ten years Lecler et al.
The analyzed waste is considered as class I—Dangerous due to the presence of toxic elements in the leachate above the Brazilian waste classification standard.