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
Authors:Martina Draganovska, Alena Sicakova, and Marian Holub
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.
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.
Authors:Marcelo Mendes Viana, Maura Berger Maltez Melchert, Leandro Cardoso de Morais, Pedro Maurício Buchler, and Jo Dweck
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
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
Authors:Wu Yanbo, Fu Jie, Zeng Sisi, Sun Peng, and Yan Yingchun
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
Authors:Lech Nowicki, Anna Antecka, Tomasz Bedyk, Paweł Stolarek, and Stanisław Ledakowicz
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
Authors:Yunbo Zhai, Wenfeng Peng, Guangming Zeng, Zongming Fu, Yuanming Lan, Hongmei Chen, Chang Wang, and Xiaopeng Fan
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
cultivated soils and irrigation waters. In: Trace Elements in the Environment. 130–143. Amer. Chem. Soc. Washington. D.C.
, R. L., 1982. Fate of toxic substances in sludge applied to cropland. In: Proc. Int. Symp