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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Journal ArticleDOI
Influence of the Pyrolysis Temperature on Sewage Sludge Product Distribution, Bio-Oil, and Char Properties
Trung Ngoc Trinh,Peter Arendt Jensen,Kim Dam-Johansen,Niels Ole Knudsen,Hanne Risbjerg Sørensen +4 more
TL;DR: Fast pyrolysis may be used for sewage sludge treatment with the advantages of a significant reduction of solid waste volume and production of a bio-oil that can be used as fuel.
Journal ArticleDOI
Quantitative Characterization of Aqueous Byproducts from Hydrothermal Liquefaction of Municipal Wastes, Food Industry Wastes, and Biomass Grown on Waste
Balakrishna Maddi,Ellen A. Panisko,Thomas W. Wietsma,Teresa Lemmon,Marie S. Swita,Karl O. Albrecht,Daniel T. Howe +6 more
TL;DR: In this article, aqueous fractions produced from hydrothermal liquefaction of food industry wastes, municipal wastes, and biomass cultivated on wastewater were characterized using a wide variety of analytical approaches.
Journal ArticleDOI
Soil Degradation and Soil Quality in Western Europe: Current situation and future perspectives
Iñigo Virto,M.J. Imaz,Oihane Fernández-Ugalde,Nahia Gartzia-Bengoetxea,Alberto Enrique,Paloma Bescansa +5 more
TL;DR: In this article, the authors examined the issues and also strategies for soil protection and future perspectives for soil quality evaluation, in light of present legislation aimed at soil protection, and they concluded that no single soil management strategy is suitable for all regions, soil types and soil uses.
Journal ArticleDOI
Treatment of sewage sludge using anaerobic digestion in Malaysia: Current state and challenges
Farida Hanum,Farida Hanum,Lee Chang Yuan,Hirotsugu Kamahara,Hamidi Abdul Aziz,Yoichi Atsuta,Takeshi Yamada,Hiroyuki Daimon +7 more
TL;DR: Anaerobic co-digestion is the simultaneous anaerobic digestion of two or more substrates which is a promising possible option to overcome the disadvantages of mono digestion, and improve the economic viability due to higher methane production.
Journal ArticleDOI
Pyrolysis gasification of dried sewage sludge in a combined screw and rotary kiln gasifier
TL;DR: In this paper, a pyrolysis gasifier with carbonization and activation steps was developed to convert dried sludge into activated char and gas fuel energy, and the optimal conditions for the dry sludge were found to be a steam input of 10mL/min, gasifier temperature of 820 °C and moisture content of 11% with a holding time in the pyrolysis gasifier of 1h.
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
Wastewater Engineering Treatment Disposal Reuse
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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