Lifecycle assessment of a system for food waste disposers to tank – A full-scale system evaluation

Saraiva, Anna Bernstad; Davidsson, Åsa; Bissmont, Mimmi

doi:10.1016/j.wasman.2016.04.036

Cited by 18 publications

(5 citation statements)

References 18 publications

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“…Less than half of councils in England (160 out of the 326) do not offer food waste collection ( ITV, 2020 ). However, separate collection of household food waste can increase the recycling rate through a reduction in the volume of residual waste ( Bernstad Saraiva et al, 2016 ; Sealey and Smith, 2014 ; Shearer et al, 2017 ). Therefore, local authorities with low recycling rates could benefit greatly by the introduction of borough-wide household food waste collection which can increase the borough recycling rate by at least 25%.…”

Section: Resultsmentioning

confidence: 99%

A critical review of household recycling barriers in the United Kingdom

et al. 2021

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The UK recycling rate fluctuates between 45% and 47% and has consistently failed to meet the 65% target set by the post-Brexit Resource and Waste Strategy. Understanding the issues surrounding the low recycling rate in metropolitan cities in the United Kingdom will help to overcome these recycling challenges. The review examines the current situation with regard to the recycling rate and tonnage of waste produced in the United Kingdom based on available secondary waste flow data and explores different barriers related to household recycling. Many areas giving rise to the recycling challenges have been identified, including waste policy constraints, lack of effective communication, public engagement, physical barriers, service constraints, human factors and socio-economic barriers. The literature review reveals that factors such as waste policy, communication and physical factors were the most important aspects in influencing recycling rate or output. It is concluded that a multi-dimension intervention is required, which includes a thorough review of waste policy, a more stringent enforcement, an improved communication strategy and a more integrated planning development policy to mitigate issues affecting the United Kingdom’s low recycling rate or output. This approach will propel the local authorities to launch or initiate effective recycling management and to put in place the required infrastructure to facilitate effective recycling activities.

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Section: Resultsmentioning

confidence: 99%

A critical review of household recycling barriers in the United Kingdom

et al. 2021

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“…Finally, the increased amount of rapidly biodegradable organic carbon load improves the biological nutrient removal [28,29]. Other aspects related to FWD impacts on energy consumption, water consumption, and GHG emissions have been reviewed by several authors [30,31,32,33,34,35]. The energy consumption of an FWD is variable and depends on the model, frequency, and duration of use, so it is difficult to calculate the real consumption, but in most of the studies reviewed, this value resulted in insignificance: Bolzonella et al [36] estimated an additional energy use of 4.3 kWh and 8.5 kWh per year, meaning 0.55 € and 1.10 € per year.…”

Section: Resultsmentioning

confidence: 99%

Smart Approaches to Food Waste Final Disposal

Cecchi

Cavınato

2019

IJERPH

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Food waste, among the organic wastes, is one of the most promising substrates to be used as a renewable resource. Wide availability of food waste and the high greenhouse gas impacts derived from its inappropriate disposal, boost research through food waste valorization. Several innovative technologies are applied nowadays, mainly focused on bioenergy and bioresource recovery, within a circular economy approach. Nevertheless, food waste treatment should be evaluated in terms of sustainability and considering the availability of an optimized separate collection and a suitable treatment facility. Anaerobic codigestion of waste-activated sludge with food waste is a way to fully utilize available anaerobic digestion plants, increasing biogas production, energy, and nutrient recovery and reducing greenhouse gas (GHG) emissions. Codigestion implementation in Europe is explored and discussed in this paper, taking into account different food waste collection approaches in relation to anaerobic digestion treatment and confirming the sustainability of the anaerobic process based on case studies. Household food waste disposal implementation is also analyzed, and the results show that such a waste management system is able to reduce GHG emissions due to transport reduction and increase wastewater treatment performance.

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“…Even when accounting for the impact of the same parameters, one can find that different uncertainty ranges are used in SA and UA (Li et al., 2014). Some authors even mistook UA for SA (Bernstad Saraiva et al., 2016; Bisinella et al., 2017; Capello et al., 2008; Esteban et al., 2014; Meneses et al., 2016; Poujol et al., 2020; Xu et al., 2018) or vice versa (Amonkar et al., 2019).…”

Section: Discussionmentioning

confidence: 99%

A critical perspective on uncertainty appraisal and sensitivity analysis in life cycle assessment

Piano

Benini

2022

J of Industrial Ecology

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In this study, we review approaches for uncertainty appraisal in the life cycle assessment literature. We cover the acknowledgment of stochastic and epistemic uncertainty in uncertainty and sensitivity analysis and knowledge quality assessment, respectively. Consistent with previous works, our findings indicate that uncertainty is only appraised in a few studies on life cycle assessment. Most of these contributions cover only one of the phases of life cycle assessment, mainly the life cycle inventory phase. Less attention has been devoted to the phases of goal and scope definition and life cycle impact assessment. Additionally, in most studies, uncertainty analysis and sensitivity analysis have been applied independently, as it is wrongly assumed they cover different uncertainty spaces. We also identify the scope for improvement in the appraisal of epistemic uncertainty and the correct definition of the probability distribution of the uncertain factors. We conclude by highlighting studies in which sensible practices have been adopted, identifying open challenges, and suggesting possible ways forward.

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Lifecycle assessment of a system for food waste disposers to tank – A full-scale system evaluation

Cited by 18 publications

References 18 publications

A critical review of household recycling barriers in the United Kingdom

A critical review of household recycling barriers in the United Kingdom

Smart Approaches to Food Waste Final Disposal

A critical perspective on uncertainty appraisal and sensitivity analysis in life cycle assessment

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