Journal ArticleDOI
Utilization of sewage sludge in EU application of old and new methods—A review
D. Fytili,Anastasia Zabaniotou +1 more
TLDR
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
Citations
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Journal ArticleDOI
Evaluating air-blown gasification for energy recovery from wastewater solids: Impact of biological treatment and point of generation on energy recovery
TL;DR: In this article, a model developed for air-blown gasification coupled with internal combustion engine for energy production demonstrated that gasification of wastewater solids could produce up to one third of the electrical demand at a small wastewater resource recovery facilities (WRRF).
Journal ArticleDOI
Co-pyrolysis of iron-rich sewage sludge and potassium phosphate to prepare biochars: P fractionation and alleviated occlusion
Qing-Song Liu,Tian Tian +1 more
TL;DR: In this article, an iron-rich sewage sludge was employed to prepare nutrient-enhanced biochars through co-pyrolysis with K3PO4, and the combined proportion of short and medium-term P was ∼70 %, with a short- to mediumterm ratio of 1:3.4−4.3.
Journal ArticleDOI
Effect of Calcination Temperature on Activity of Fe2O3–Al2O3 Nanocomposite Catalysts in CO Oxidation
Anna M. Kremneva,A. V. Fedorov,Olga A. Bulavchenko,Yury V. Knyazev,Andrey A. Saraev,Vadim A. Yakovlev,Vasily V. Kaichev +6 more
TL;DR: In this paper, it was found that the catalysts calcined at 450 and 700°C are more active in the oxidation of CO than those calcining at 700-°C.
Journal ArticleDOI
Agricultural Use of Biosolids Generated in Wastewater Treatment of a Food Industry
Sandra Patricia Santacoloma-Londoño,María Eugenia Buitrago-González,Karen Colorado-Molina,Isabella Suárez-Pineda,Mónica Andrea Martínez-Martina,Luis Carlos Villegas-Méndez +5 more
TL;DR: In this paper, a random block design was made to compare treatments understudy and resulted in the combination of 50% biosolids with 50% land soil was the best test by germination, height, mass and length of the roots of the plant studied.
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.
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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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