Comparative life cycle assessment of anaerobic co-digestion for dairy waste management in large-scale farms

Adghim, Mohamad; Abdallah, Mohamed; Saad, Suhair; Shanableh, Abdallah; Sartaj, Majid; Mansouri, Ahmed Eltigani El

doi:10.1016/j.jclepro.2020.120320

Cited by 35 publications

(13 citation statements)

References 19 publications

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“…Stazi et al (2012) propose a method to improve energy and environmental efficiency. They find that LCA is an effective technique to achieve environmental sustainability, where it was used to select design components at each stage, thus improving environmental performance (Adghim et al, 2020). While some studies like Parkes et al (2015) examine the LCA to identify the best environmental alternative.…”

Section: Lca For Decisions Makingmentioning

confidence: 99%

Do life-cycle costing and assessment integration support decision-making towards sustainable development?

Atia

Bassily

Elamer

2020

Journal of Cleaner Production

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Section: Lca For Decisions Makingmentioning

confidence: 99%

Do life-cycle costing and assessment integration support decision-making towards sustainable development?

Atia

Bassily

Elamer

2020

Journal of Cleaner Production

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“…Acidification potential (AP) is particularly affected by processes involving SO x , NH 3, and NO x emissions 61 . As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…GWP due to emissions from grass farming and milk production varies significantly depending on the production processes. Reduction of GWP in dairy farms could be achieved by adopting other production strategies or sustainable manure management techniques, such as anaerobic digestion that could reduce the GWP of dairy farms up to 25% compared to conventional techniques 61 . The use of expired milk as a raw material in the EICP cementing may reduce the cost and improve the environmental sustainability of the EICP technique.…”

Section: Resultsmentioning

confidence: 99%

Life cycle assessment of biocemented sands using enzyme induced carbonate precipitation (EICP) for soil stabilization applications

Alotaibi

Arab

Abdallah

et al. 2022

Sci Rep

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Integrating sustainability goals into the selection of suitable soil stabilization techniques is a global trend. Several bio-inspired and bio-mediated soil stabilization techniques have been recently investigated as sustainable alternatives for traditional techniques known for their high carbon footprint. Enzyme Induced Carbonate Precipitation (EICP) is an emerging bio-inspired soil stabilization technology that is based on the hydrolysis of urea to precipitate carbonates that cement sand particles. A life cycle assessment (LCA) study was conducted to compare the use of traditional soil stabilization using Portland cement (PC) with bio-cementation via EICP over a range of environmental impacts. The LCA results revealed that EICP soil treatment has nearly 90% less abiotic depletion potential and 3% less global warming potential compared to PC in soil stabilization. In contrast, EICP in soil stabilization has higher acidification and eutrophication potentials compared to PC due to byproducts during the hydrolysis process. The sensitivity analysis of EICP emissions showed that reducing and controlling the EICP process emissions and using waste non-fate milk has resulted in significantly fewer impacts compared to the EICP baseline scenario. Moreover, a comparative analysis was conducted between EICP, PC, and Microbial Induced Carbonate Precipitation (MICP) to study the effect of treated soil compressive strength on the LCA findings. The analysis suggested that EICP is potentially a better environmental option, in terms of its carbon footprint, at lower compressive strength of the treated soils.

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“…Acidi cation potential (AP) is particularly affected by processes involving SO x , NH 3, and NO x emissions (Adghim et al 2020). As shown in Fig.…”

Section: Acidi Cation Potentialmentioning

confidence: 99%

“…The non-fat milk powder contributed to ~ 15% of the total GWP from the EICP processes. Reduction of GWP in dairy farms could be achieved by adopting sustainable manure management techniques, such as anaerobic digestion that could reduce the GWP of dairy farms up to 25% compared to conventional techniques (Adghim et al 2020). The use of expired milk as a raw material in the EICP cementing may reduce the cost and improve the environmental sustainability of the EICP technique.…”

Section: Limitations and Recommendationsmentioning

confidence: 99%

Life Cycle Assessment of Biocemented Sands using Enzyme Induced Carbonate Precipitation (EICP) for Ground Improvement Applications

Alotaibi

Arab

Abdallah

et al. 2021

Preprint

Self Cite

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Integrating sustainability goals into the selection of suitable ground improvement techniques is a global trend. Several bio-inspired and bio-mediated ground improvement techniques have been recently investigated as sustainable alternatives for traditional ground improvement techniques known for their high carbon footprint. Enzyme Induced Carbonate Precipitation (EICP) is an emerging bio-inspired soil improvement technique that is based on the hydrolysis of urea to precipitate carbonates that cement sand particles. Life cycle assessment (LCA) study was conducted to compare the use of traditional ground improvement using Portland cement with bio-cementation via EICP over a range of environmental impacts. The LCA results revealed that EICP soil treatment has nearly 90% less abiotic depletion potential and 3% less global warming potential compared to cement. Compared to cement, EICP has higher acidification and eutrophication potentials due to byproducts during the hydrolysis process. The sensitivity analysis of EICP emissions showed that reducing and controlling the EICP process emissions and using waste non-fate milk has resulted in significantly fewer impacts compared to the EICP baseline scenario.

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Comparative life cycle assessment of anaerobic co-digestion for dairy waste management in large-scale farms

Cited by 35 publications

References 19 publications

Do life-cycle costing and assessment integration support decision-making towards sustainable development?

Do life-cycle costing and assessment integration support decision-making towards sustainable development?

Life cycle assessment of biocemented sands using enzyme induced carbonate precipitation (EICP) for soil stabilization applications

Life Cycle Assessment of Biocemented Sands using Enzyme Induced Carbonate Precipitation (EICP) for Ground Improvement Applications

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