Life cycle assessment of sewage sludge pretreatment for biogas production: From laboratory tests to full-scale applicability

2021 ◽  
Vol 322 ◽  
pp. 129056
Author(s):  
Matia Mainardis ◽  
Marco Buttazzoni ◽  
Fabian Gievers ◽  
Charlene Vance ◽  
Francesca Magnolo ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Sewage Sludge ◽  
Laboratory Tests ◽  
Biogas Production ◽  
Full Scale ◽  
Sludge Pretreatment

The role of residual biomass in the French transition towards low fossil C use: spatial quantification, current uses, and life cycle assessment of the baseline

2021 ◽  
Author(s):  
Lorie Hamelin ◽  
Shivesh Karan
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Sewage Sludge ◽  
Crop Residues ◽  
Biogas Production ◽  
Organic Fertilizer ◽  
Mineral Fertilizers ◽  
Fossil Carbon ◽  
Residual Biomass ◽  
Garden Waste

<p>Reducing greenhouse gas emissions, and in particular fossil carbon dioxide, is essential to sustain future human life on Earth. In this perspective, residual biomass becomes a potentially valuable resource to substitute fossil carbon, in particular when considered under the angle of national strategic planning. Yet, diverting this flow from its current (or baseline) use implies ensuring a net societal benefit, i.e. an overall enhanced environmental and economic performance. Here, we present an assessment covering the whole of France. The purpose of our study is three-fold: (i) providing and demonstrating a methodology for high-resolution spatial quantification of key residual biomass streams including Primary Forestry Residues (PFR), Agricultural Residues (crop residues, manure, prunings), Sewage Sludge, Garden Waste, Food waste (household, industrial); (ii) identifying the current use of these streams and (iii) quantifying, by life cycle assessment, the environmental impacts related to this baseline management. The vision is to supply the quantified minimal environmental performance that future bioeconomy uses of the residual biomasses must have in order to generate an overall improvement compared to today’s baseline. The aim is additionally to develop methods that can be reproduced and used for strategic circular- and bioeconomy planning in other countries (or regions) worldwide.</p><p>According to our results, the total biophysical available potential (in PJ y<sup>-1</sup>) is: PFR: 158 PJ y<sup>-1</sup> [83-261]; Crop residues: 1178 PJ y<sup>-1</sup> [988-1369]; Manure: 433 PJ y<sup>-1</sup> [345-520];  pruning residues: 57 PJ y<sup>-1</sup> [30-85]; garden waste: 61 PJ y<sup>-1</sup> [49-73];  household biowaste currently separately collected: 103 PJ y<sup>-1</sup> [83-124]; household biowaste not collected today: 89 PJ y<sup>-1</sup> [81-97]; agri-industrial biowaste: 81.4 PJ y<sup>-1</sup> [65-98]; sewage sludge: 15.2 PJ y<sup>-1</sup> [12-18]. This totals ~2100 PJ y<sup>-1</sup>, the equivalent of 20% of the primary energy supply in France. The current uses vary among the streams, including on-land decay, open-air burning, domestic heat use, direct use as organic fertilizer, use as organic fertilizer after composting or use as bedding, production of heat and power following biogas production through anaerobic digestion, mulch production and incineration amongst the most common ones. When services are supplied (e.g. heat, electricity, fertilizers), the life cycle assessment considered the avoided impacts induced by the substituted products (e.g. natural gas, mineral fertilizers).</p><p>To our knowledge, such a wide platform covering as many residual streams at this level of spatial resolution (from 10-m to the European NUTS-3 level), incorporating uncertainties and life cycle inventories on the current uses of streams, has never been elaborated until now.</p>

scholarly journals Performance Evaluation of Sewage Treatment Plants in Lucknow City

2013 ◽  
Vol 12 ◽  
pp. 80-86 ◽  
Author(s):  
Mansi Tripathi ◽  
S. Singal
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Biogas Production ◽  
Sewage Treatment ◽  
Uasb Reactor ◽  
Sewage Treatment Plants ◽  
Energy And Environment ◽  
Design Value ◽  
Domestic Effluent ◽  
Better Than

The present study was conducted to evaluate the performance of existing sewage treatment plants (STPs) in Lucknow City of India. Currently, two STPs are operating in Lucknow, i.e., UASB reactor and FAB reactor, with total operating capacity of 345MLD and 56MLD, respectively. Since, the wastewater get mix with the domestic effluent while directing towards the STPs, therefore, the concentration of BOD is relatively very low, and hence the amount of biogas production by the UASB reactor is also reduced than its design value. Two approaches, evaluating the treatability performance and Life-Cycle Assessment (LCA) have been used to determine the plants efficiencies. All the results have been interpreted graphically. The results of this study conclude that the UASB reactor is better than the FAB, however in terms of LCA the FAB seems to be more reliable. Hydro Nepal; Journal of Water, Energy and Environment Vol. 12, 2013, January Page: 80-86DOI: http://dx.doi.org/10.3126/hn.v12i0.9039 Uploaded Date : 10/29/2013

Technical, hygiene, economic, and life cycle assessment of full-scale moving bed biofilm reactors for wastewater treatment in India

2017 ◽  
Vol 25 (3) ◽  
pp. 2552-2569 ◽  
Author(s):  
Anju Singh ◽  
Sheetal Jaisingh Kamble ◽  
Megha Sawant ◽  
Yogita Chakravarthy ◽  
Absar Kazmi ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Full Scale ◽  
Moving Bed ◽  
Biofilm Reactors
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