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Paola Lettieri

Bio: Paola Lettieri is an academic researcher from University College London. The author has contributed to research in topics: Fluidized bed & Life-cycle assessment. The author has an hindex of 40, co-authored 179 publications receiving 7522 citations.


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01 Jan 2007

1,932 citations

Journal ArticleDOI
TL;DR: Although primary and secondary recycling schemes are well established and widely applied, it is concluded that many of the PSW tertiary and quaternary treatment schemes appear to be robust and worthy of additional investigation.

1,672 citations

Journal ArticleDOI
TL;DR: In this article, the authors provide an in depth analysis regarding the recovery, treatment and recycling routes of plastic solid waste (PSW), as well as the main advantages and disadvantages associated with every route.

384 citations

Journal ArticleDOI
TL;DR: A life cycle assessment is presented to compare the environmental impacts of AD with energy and organic fertiliser production against two alternative approaches: incineration with energy production by CHP and landfill with electricity production to investigate the dependency of the results on some specific assumptions and key process parameters.

251 citations

Journal ArticleDOI
TL;DR: In this paper, the authors presented the life cycle assessment of an electric car based on the technology of lithium-ion battery (BEV) for Europe and compared it to an internal combustion engine vehicle (ICEV).
Abstract: Electric mobility is playing an important and growing role in the context of sustainable transport sector development. This study presents the life cycle assessment of an electric car based on the technology of Lithium-ion battery (BEV) for Europe and compares it to an internal combustion engine vehicle (ICEV). According to a cradle-to-grave approach, manufacturing, use and disposal phases of both vehicles have been included in the assessment in order to identify the hot spots of the entire life cycles. For electric vehicles two manufacturing inventories have been analysed and different vehicle disposal pathways have also been considered. Furthermore, the environmental performances of hybrid vehicles have been analysed based on the life cycle models of the BEV and ICEV. The results of the hot spot analysis showed that the BEV manufacturing phase determined the highest environmental burdens mainly in the toxicity categories as a result of the use of metals in the battery pack. However, the greenhouse gas emissions associated with the BEV use phase were shown to be half than those recorded for the ICEV use phase. The trend of the results has also been investigated for future energy mixes: the electricity and diesel mixes for the year 2050 have been considered for the modelling of the use phase of BEV and ICEV.

137 citations


Cited by
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Journal ArticleDOI
TL;DR: The present overview highlights the waste management and pollution challenges, emphasising on the various chemical substances contained in all plastic products for enhancing polymer properties and prolonging their life.

1,740 citations

Journal ArticleDOI
TL;DR: Although primary and secondary recycling schemes are well established and widely applied, it is concluded that many of the PSW tertiary and quaternary treatment schemes appear to be robust and worthy of additional investigation.

1,672 citations

Journal ArticleDOI
TL;DR: This review presents a comprehensive description of the current pathways for recycling of polymers, via both mechanical and chemical recycling, and discusses the main challenges and some potential remedies to these recycling strategies, thus providing an academic angle as well as an applied one.

1,352 citations

Journal ArticleDOI
TL;DR: The areas of energy, water and food policy have numerous interwoven concerns ranging from ensuring access to services, to environmental impacts to price volatility as mentioned in this paper, and these issues manifest in very di...

1,038 citations

Journal ArticleDOI
TL;DR: In this paper, the authors reviewed the characteristics of food waste, the principles of anaerobic digestion, the process parameters, and two approaches (pretreatment and co-digestion) for enhancing AD in food waste.
Abstract: The uncontrolled discharge of large amounts of food waste (FW) causes severe environmental pollution in many countries. Within different possible treatment routes, anaerobic digestion (AD) of FW into biogas, is a proven and effective solution for FW treatment and valorization. The present paper reviews the characteristics of FW, the principles of AD, the process parameters, and two approaches (pretreatment and co-digestion) for enhancing AD of food waste. Among the successive digestion reactions, hydrolysis is considered to be the rate-limiting step. To enhance the performance of AD, several physical, thermo-chemical, biological or combined pretreatments are reviewed. Moreover, a promising way for improving the performance of AD is the co-digestion of FW with other organic substrates, as confirmed by numerous studies, where a higher buffer capacity and an optimum nutrient balance enhance the biogas/methane yields of the co-digestion system.

971 citations