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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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Emission of CO2 and N2O from soil cultivated with common bean (Phaseolus vulgaris L.) fertilized with different N sources.
Fabián Fernández-Luqueño,V. Reyes-Varela,C. Martínez-Suárez,R.E. Reynoso-Keller,Joaquín Méndez-Bautista,Erick Ruiz-Romero,Fernando López-Valdez,Fernando López-Valdez,Marco Luna-Guido,Luc Dendooven +9 more
TL;DR: Environmental and economic implications must to be considered to decide how many, how often and what kind of organic fertilizer could be used to increase yields, while limiting soil deterioration and greenhouse gas emissions.
Journal ArticleDOI
Accumulation and bioavailability of heavy metals in a soil-wheat/maize system with long-term sewage sludge amendments
TL;DR: In this article, a long-term field experiment was carried out with a wheat-maize rotation system to investigate the accumulation and bioavailability of heavy metals in a calcareous soil at different rates of sewage sludge amendment.
Journal ArticleDOI
Energetic assessment of air-steam gasification of sewage sludge and of the integration of sewage sludge pyrolysis and air-steam gasification of char
TL;DR: In this paper, an energy assessment of pyrolysis and gasification of sewage sludge, also considering the prior sewage-sludge thermal drying and the gasification derived from the pyrotechnical stage, is presented.
Journal ArticleDOI
Sustainable development of sewage sludge-to-energy in China: Barriers identification and technologies prioritization
Jingzheng Ren,Jingzheng Ren,Hanwei Liang,Liang Dong,Zhiqiu Gao,Chang He,Ming Pan,Lu Sun,Lu Sun +8 more
TL;DR: Wang et al. as discussed by the authors used grey Decision Making Trial and Evaluation Laboratory (DEMATEL) to identify the critical barriers that hinder the sustainable development of sludge-to-energy industry in China and investigate the cause-effect relationships among these barriers.
Journal ArticleDOI
Energy, exergy and economic analysis of a novel geothermal energy system for wastewater and sludge treatment
TL;DR: In this paper, the use of geothermal energy for electric and thermal energy generation for wastewater and sludge treatment is proposed for small islands, where the lack of connections with mainland and environmental restrictions promote the usage of unconventional fuels and technologies for energy production and waste treatment.
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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