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
Hydrothermal treatment coupled with mechanical expression at increased temperature for excess sludge dewatering: Heavy metals, volatile organic compounds and combustion characteristics of hydrochar
Liping Wang,Aimin Li,Yuzhi Chang +2 more
TL;DR: In this paper, the feasibility of using hydrochar as soil conditioner in the view of heavy metals and volatile organic compounds as well as the combustion behavior by means of thermogravimetric analysis was investigated.
Journal ArticleDOI
Investigation on the fast co-pyrolysis of sewage sludge with biomass and the combustion reactivity of residual char.
TL;DR: The co-pyrolysis of SS with WS showed that there existed a synergistic effect in terms of higher gas and bio-oil yields and lower char yield, especially at the WS adding percentage of 80wt%.
Journal ArticleDOI
An integrated system for sewage sludge drying through solar energy and a combined heat and power unit fuelled by biogas
TL;DR: In this paper, a hybrid system for sewage sludge drying is proposed in order to increase sustainability and energy self-sufficiency of a wastewater treatment plant, where biogas is used to fuel a combined heat and power system and solar energy is exploited through a parabolic trough collector field.
Journal ArticleDOI
Ultrasonic waste activated sludge disintegration for recovering multiple nutrients for biofuel production.
TL;DR: Waste activated sludge after ultrasound pretreatment was reused as multiple nutrients for biofuel production and provided a novel strategy to achieve environmental friendly sludge disposal and simultaneous efficient biofuel recovery from organic waste.
Journal ArticleDOI
Beneficial Use of Dewatered and Composted Sewage Sludge as Soil Amendments: Behaviour of Metals in Soils and Their Uptake by Plants
Paula Alvarenga,Paula Alvarenga,Márcia Farto,Clarisse Mourinha,Patrícia Palma,Patrícia Palma +5 more
TL;DR: In this article, the potential risk of the use of dewatered and composted sewage sludge (SS) as soil amendments was evaluated, and two different wastewater treatment plants (SS1 and SS2) and a compost produced from SS and agricultural wastes (AWSSC) were characterized for their total metal concentrations, organic contaminants and indicator pathogens, and used in a pot experiment with three application rates, 6, 12 and 24 ton dry matter/ha.
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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