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Journal of Thermal Analysis and Calorimetry
Authors: Renato Vessecchi Lourenço, Marcelo Kobelnik, Clóvis Augusto Ribeiro, and Fernando L. Fernonani

ourselves with other by-products generated during the manufacture of ethanol, mainly aerobic and aerobic sludge produced during the treatment of the wastewater from the industry. Sludge is a generic name for the solid waste generated by the systems

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This paper presents the results of basic research using sludge as a secondary material produced during the process of wet aggregates grading. The basic objective of this study was to identify important properties of sludge for the further use as substitute filler in the cement composites. Results of tests executed, like determination of particle size, bulk density, chemical composition (XRF method), mineralogical composition (XRD method) and both clay lumps and humus content were compared with those of natural aggregate (reference sample), as well as with standard criteria. For all tested properties, sludge shows satisfactory parameters, except the granularity. Here samples demonstrate high portions of fine particles in the 0/4 range. Thus can be concluded, sludge has a potential to be used as filler in cement composites requiring bigger amounts of fine particles, like self-compacting concretes.

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Abstract  

The number of the cities with canalized water and sewage treatment stations has increased lately and consequently having in mind the great concern on environment preservation and the quality of the water used by society. However, these stations are nowadays causing another kind of problem: a huge quantity of sludge as residue. Due to the implication of the residue on the environment and, consequently, to human life quality, performing of an accurate investigation about the components of such sludge, as well as the thermal stability of this residue in the environment become necessary. This paper presents a study on sludge from water and sewage treatment station, as well as the thermal characterization of residue. Such study was performed through FTIR, atomic absorption, thermoanalytical (TG/DTG, DTA) techniques, that made it possible to observe that the main components of the sludge are clay, carbonates and organic substance, presenting a low rate of metals and a unique thermal behavior since the sludge from the treatment station has a higher thermal stability.

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Journal of Thermal Analysis and Calorimetry
Authors: Marcelo Mendes Viana, Maura Berger Maltez Melchert, Leandro Cardoso de Morais, Pedro Maurício Buchler, and Jo Dweck

Introduction The requirements of governmental legislation for the disposal and use of sewage sludge coupled with the increase of their generation and decreasing acceptance of traditional routes for their disposal have led to a

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advantages, first, it removes pathogens from organic wastes like in sewage sludges and, second, biochar can improve the structure of soil, increase agricultural output and at the same time contribute to carbon sequestration due to carbon stability of biochar

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Introduction Sludge has been landfilled, incinerated, placed in the ocean, or used in agriculture [ 1 ]. The disposal of sludge on reclaimed land is no longer a viable solution because farmland sludge applications are limited

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Jenkins, D., Richard, M.G. & Daigger, G.T. (1993): Manual on the causes and control of activated sludge bulking and foaming . 2nd ed., Lewis, Ann Arbor. Daigger G

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Journal of Thermal Analysis and Calorimetry
Authors: Lech Nowicki, Anna Antecka, Tomasz Bedyk, Paweł Stolarek, and Stanisław Ledakowicz

Introduction Sewage sludge is regarded as the residue produced by the wastewater treatment process. Currently the most widely available option of sludge utilization in the EU are according to Fytili and Zabaniotou [ 1 ] the

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Journal of Thermal Analysis and Calorimetry
Authors: Yunbo Zhai, Wenfeng Peng, Guangming Zeng, Zongming Fu, Yuanming Lan, Hongmei Chen, Chang Wang, and Xiaopeng Fan

Introduction Sewage sludge is produced in significant quantities during the industrial and domestic waste water treatment by biological processes and growing sharply in recent years. Consequently, many treatment processes were

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cultivated soils and irrigation waters. In: Trace Elements in the Environment. 130–143. Amer. Chem. Soc. Washington. D.C. Chaney , R. L., 1982. Fate of toxic substances in sludge applied to cropland. In: Proc. Int. Symp

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