Research Interests:
Research Interests:
... Photography Microsoft Windows & Office Personal Finance & Investing Health & Wellness Computing, iPods & Cell Phones eBay Internet Food ... Stacy Kennedy was our first contact with Wiley Publishing; she... more
... Photography Microsoft Windows & Office Personal Finance & Investing Health & Wellness Computing, iPods & Cell Phones eBay Internet Food ... Stacy Kennedy was our first contact with Wiley Publishing; she patiently and efficiently worked out the many details of the ...
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In Brazil, very common problem to the biggest part of the communities, where the public water supply is realized using the surface water, and needs to pass by the water treatment plant (WTP). In the treatment process, a residue formation... more
In Brazil, very common problem to the biggest part of the communities, where the public water supply is realized using the surface water, and needs to pass by the water treatment plant (WTP). In the treatment process, a residue formation in the form of sludge occurs, which periodically needs to be discarded out the process. Except some WTP, on a nation level all they discarded these residues, in brutal way and without treatment, in watercourses. In this work was realized with the objective to finding an adequate solution to properly allocate the sludge produced in the Water Treatment Plant (WTP) from Presidente Prudente, which is operated by SABESP. This study was based in premise to apply the WTP sludge in the Wastewater Treatment Plant (WWTP), in the thickener by an existing gravity. And however, it was built a WWTP Pilot plant where were realized the simulations of applying dosages of 2000 mg/L and 4000 mg/L of WTP sludge. The evaluation of the performance of the pilot unit was g...
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This work presents the principal results of studies about sludge from decantation ponds of water treatment plants (WTP) in the Presidente Prudente-SP (Brazil) region. Initially the sludge was submitted to physical, chemical and... more
This work presents the principal results of studies about sludge from decantation ponds of water treatment plants (WTP) in the Presidente Prudente-SP (Brazil) region. Initially the sludge was submitted to physical, chemical and mineralogical characterization. As this residue is generated by soil erosion in upstream locations, its grain-size distribution (silt, sand and clay) was studied throughout the year. Also evaluated was the influence of different chemical products used during the flocculation process. Finally, the effects of its incorporation on the properties of ceramic mass were determined. The characterization (TGA, DSC, DTA, XRD, particle size analysis and AAS) showed that this residue has variable composition according to the WTP localization, the month of sludge production and the chemical used for flocculation. Technological tests (linear shrinkage, water absorption, flexural strength, and apparent porosity and density) of ceramic probes showed that depending on the tem...