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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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
Autocatalytic Pyrolysis of Wastewater Biosolids for Product Upgrading
TL;DR: A novel pyrolysis process using wastewater biosolids-derived biochar (WB-biochar) as a catalyst was investigated to decrease bio-oil and increase py-gas yield for easier energy recovery, indicating the potential for easier on-site energy recovery using the relatively clean py- gas.
Journal ArticleDOI
Characterization and performance of carbonaceous materials obtained from exhausted sludges for the anaerobic biodecolorization of the azo dye Acid Orange II
TL;DR: In this paper, a preliminary study of new carbonaceous materials obtained from exhausted sludge, their use in the heterogeneous anaerobic process of biodecolorization of azo dyes and the comparison of their performance with one commercial active carbon was conducted through chemical activation and carbonization.
Journal ArticleDOI
Thermal valorization of sewer sludge: Perspectives for large wastewater treatment plants
TL;DR: In this article, the authors investigated the feasibility of sludge incineration through a methodology applied to a significant case study, such as a WWTP treating 2.7 m p. The first step consisted in a baseline analysis, which was necessary to define the main qualitative and quantitative characteristics of the sludge.
Journal ArticleDOI
Major nutrients, heavy metals and PBDEs in soils after long-term sewage sludge application
TL;DR: In this paper, two contrasting soils receiving long-term application of commercial sewage sludge fertilizers in China were investigated to determine the concentrations of selected nutrients, heavy metals (HMs) and polybrominated diphenyl ethers (PBDEs) present to evaluate the impact of wastewater sludge fertilizer on soil fertility and environmental risk.
Journal ArticleDOI
Low temperature circulating fluidized bed gasification and co-gasification of municipal sewage sludge. Part 2: Evaluation of ash materials as phosphorus fertilizer
Tobias Pape Thomsen,Henrik Hauggaard-Nielsen,Benny Gøbel,Peder Stoholm,Jesper Ahrenfeldt,Ulrik Birk Henriksen,Dorette Sophie Müller-Stöver +6 more
TL;DR: It was concluded that LT-CFB gasification and co-gasification is a highly effective way to purify and sanitize sewage sludge for subsequent use in agricultural systems and showed the best fertilizer qualities among all assessed materials.
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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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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