Journal ArticleDOI
Utilization of sewage sludge in EU application of old and new methods—A review
D. Fytili,Anastasia Zabaniotou +1 more
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In this article, the authors review past and future trends in sludge handling, focusing mainly at thermal processes (e.g. pyrolysis, wet oxidation, gasification) and the utilization of sewage sludge in cement manufacture as a co-fuel.Abstract:
The European Union has made progress in dealing with municipal wastewater in individual countries and as a corporate entity. However, it intends to make still further and substantial progress over the next 15 years. Currently, the most widely available options in the EU are the agriculture utilization, the waste disposal sites, the land reclamation and restoration, the incineration and other novel uses. The selection of an option on a local basis reflects local or national, cultural, historical, geographical, legal, political and economic circumstances. The degree of flexibility varies from country to country. In any case sludge treatment and disposal should always be considered as an integral part of treatment of wastewater. There is a wide range of other uses for sludge, which exploit its energy or chemical content, namely the thermal processes. The present paper sought to review past and future trends in sludge handling, focusing mainly at thermal processes (e.g. pyrolysis, wet oxidation, gasification) and the utilization of sewage sludge in cement manufacture as a co-fuel.read more
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Struvite Crystallisation and the Effect of Co2+ Ions
Jörn Hövelmann,Tomasz M. Stawski,Helen M. Freeman,Rogier Besselink,Sathish Mayanna,Jeffrey Paulo H. Perez,Nicole Hondow,Liane G. Benning +7 more
TL;DR: In this paper, the authors studied the crystallization pathways of struvite from aqueous solutions using a combination of ex situ and in situ time-resolved synthesis and characterization techniques, including synchrotron-based small and wide-angle X-ray scattering (SAXS/WAXS) and cryogenic transmission electron microscopy (cryo-TEM).
Municipal solid waste experimental studies in Romania and Bulgaria
Vasilis J. Inglezakis,S. Dvorsak,J. Varga,Christos A. Venetis,Antonis A. Zorpas,K. Elaiopoulos,Nona Ardeleanu,L. Ilieva,Konstantinos Moustakas,Maria Loizidou,C. Cobzaru +10 more
TL;DR: The project Balkwaste (www.balkwaste.eu) is a LIFE+ project financed by the European Commission for the period of 2009-2011 (LIFE 07 ENV/RO/000686) as mentioned in this paper.
Journal ArticleDOI
Greener cementitious composites incorporating sewage sludge ash as cement replacement: A review of progress, potentials, and future prospects
Aamar Danish,Togay Ozbakkaloglu +1 more
TL;DR: In this article , the authors analyzed the characteristics (chemical composition, pozzolanic activity, and particle morphology) of sludge ash and properties of SSA modified cementitious composites, including hydration kinetics, mechanical properties, drying shrinkage, porosity and microstructural properties.
Journal ArticleDOI
Adsorption behavior of activated carbon derived from pyrolusite-modified sewage sludge: equilibrium modeling, kinetic and thermodynamic studies.
TL;DR: Activated carbon was developed from sewage sludge using pyrolusite as an additive and the adsorption of two synthetic dyes was found to be a spontaneous and endothermic process in nature.
Journal ArticleDOI
Influence of Operating Parameters on Sewage Sludge Drying in a Paddle Dryer: Design of Experiments for the Determination of Hold-Up and Water Content Profiles
TL;DR: In this article, a fractional factorial design of experiments (DoE) was implemented in which dryer slope, stirrer speed, overflow level, and sludge flow rate were initially selected as factors.
References
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Journal ArticleDOI
Sequential extraction procedure for the speciation of particulate trace metals
TL;DR: In this paper, an analytical procedure involving sequential chemicai extractions was developed for the partitioning of particulate trace metals (Cd, Co, Cu, Ni, Pb, Zn, Fe, and Mn) into five fractions: exchangeable, bound to carbonates, binding to Fe-Mn oxides and bound to organic matter.
Book
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TL;DR: Wastewater Engineering: An Overview of Wastewater Engineering, Methods and Implementation Considerations as mentioned in this paper is a good starting point for a discussion of the issues of wastewater engineering. But, it is not a complete survey of the entire literature.
Journal ArticleDOI
Sewage sludge combustion
Joachim Werther,T. Ogada +1 more
TL;DR: In this article, a review of the current and future issues related to the combustion of sewage sludge is presented, and a number of technologies for thermal processing of sludge are discussed in three groups, i.e., mono-combustion, cocombustions and alternative processes.
Journal ArticleDOI
Trace metal analysis on polluted sediments
Ulrich Förstner,Wim Salomons +1 more
TL;DR: In this article, the authors proposed a standardization with respect to grain size effects, commonly achieved by analyzing the sieve fraction <63μm, which is used to pin point major sources of metal pollution and to estimate the toxicity potential of dredged materials.
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