Environmental evaluation of concrete with sewage sludge ash based on LCA

Nakić, Domagoj

doi:10.1016/j.spc.2018.08.003

Cited by 75 publications

(29 citation statements)

References 26 publications

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“…Based on the literature review and previous research (Gursel et al, 2014;Nakić, 2018), it is valid to simplify LCA models by clearly setting system boundaries on the "gate-to-grave" principles. For this approach, the boundaries of the analyzed system start with obtained SSA that requires further management and end with considering environmental impacts which occur within the End-of-Life phase of the residue disposed of at the non-hazardous waste landfill.…”

Section: Life Cycle Assessment As a Methods Of Determining Environmental Impacts Resulting From Ssa Landfillingmentioning

confidence: 99%

“…The important fact is that heavy metals are usually well incorporated in cement matrix if SSA is used in concrete/ Figure 2. Results of the LCA model for two compared scenarios expressed as GWP (Scenario 1-production of 1 m 3 of ordinary concrete and landfilling those quantities of SSA used as a substitute for cement in scenario 2; Scenario 2 -production of 1 m 3 of concrete by substituting 10% of cement with SSA) (Nakić, 2018) mortar mixtures and as such remain immobilized (Nakić et al, 2017;Shih et al, 2005;Lin & Weng, 2001). Previous research (Nakić, 2018) has shown that SSA landfilling does not cause significant environmental impacts, given the potential for global warming.…”

Section: Life Cycle Assessment As a Methods Of Determining Environmental Impacts Resulting From Ssa Landfillingmentioning

confidence: 99%

“…Results of the LCA model for two compared scenarios expressed as GWP (Scenario 1-production of 1 m 3 of ordinary concrete and landfilling those quantities of SSA used as a substitute for cement in scenario 2; Scenario 2 -production of 1 m 3 of concrete by substituting 10% of cement with SSA) (Nakić, 2018) mortar mixtures and as such remain immobilized (Nakić et al, 2017;Shih et al, 2005;Lin & Weng, 2001). Previous research (Nakić, 2018) has shown that SSA landfilling does not cause significant environmental impacts, given the potential for global warming. According to Nakić (2018) production of 1 m 3 of normal commonly used concrete and landfilling of SSA in the amount that is used as a cement replacement (10%) to obtain concrete of the same mechanical, durability and ecological properties results in a total GWP of 238 kg CO 2 eq.…”

Section: Life Cycle Assessment As a Methods Of Determining Environmental Impacts Resulting From Ssa Landfillingmentioning

confidence: 99%

“…Previous research (Nakić, 2018) has shown that SSA landfilling does not cause significant environmental impacts, given the potential for global warming. According to Nakić (2018) production of 1 m 3 of normal commonly used concrete and landfilling of SSA in the amount that is used as a cement replacement (10%) to obtain concrete of the same mechanical, durability and ecological properties results in a total GWP of 238 kg CO 2 eq. (Figure 2 -Scenario 1).…”

Section: Life Cycle Assessment As a Methods Of Determining Environmental Impacts Resulting From Ssa Landfillingmentioning

confidence: 99%

See 3 more Smart Citations

Lca of Heavy Metals Leaching From Landfilled Sewage Sludge Ash

Nakić

Vouk

Šiljeg

et al. 2021

Journal of Environmental Engineering and Landscape Management

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Quantities of sewage sludge that are thermally treated (mostly incinerated) are increasing, resulting in growing quantities of sewage sludge ash (SSA) which also requires further management. Despite its potential as a resource, it is still largely landfilled. Considering the presence of potentially toxic and hazardous heavy metals in SSA, this paper analyzes how the change in the leaching concentrations of the selected heavy metals from landfilled SSA impacts the environment (air, water, and soil) by the means of LCA. When considering human toxicity potential as impact category, dominant impacts were due to emissions into the air, primarily caused by leaching of selenium and somewhat less cadmium, mercury and nickel. Mercury had a dominant impact when considering the terrestrial ecotoxicity potential impact. In the SSAs obtained from Croatian sludge, molybdenum leaching, along with selenium and mercury, showed a dominant impact. Therefore, due to the high variability of trace elements, detailed analysis of different SSAs is needed.

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Section: Life Cycle Assessment As a Methods Of Determining Environmental Impacts Resulting From Ssa Landfillingmentioning

confidence: 99%

Section: Life Cycle Assessment As a Methods Of Determining Environmental Impacts Resulting From Ssa Landfillingmentioning

confidence: 99%

Section: Life Cycle Assessment As a Methods Of Determining Environmental Impacts Resulting From Ssa Landfillingmentioning

confidence: 99%

Section: Life Cycle Assessment As a Methods Of Determining Environmental Impacts Resulting From Ssa Landfillingmentioning

confidence: 99%

See 2 more Smart Citations

Lca of Heavy Metals Leaching From Landfilled Sewage Sludge Ash

Nakić

Vouk

Šiljeg

et al. 2021

Journal of Environmental Engineering and Landscape Management

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“…The keyword network maps is build up through the co-occurrences method and the different colors of nodes identify the clusters, while their size changes according to the keywords' frequency. We identify four main lines of research: "Environmental Protection", "Environmental Management", "Environmental Impact", and "Water Management" [35,39,64,74,125,126]. We set up this clusters according to the keywords associated to most articles in the sample, using the VOSviewer software.…”

Section: Abstract Analysismentioning

confidence: 99%

Industrial Processes Management for a Sustainable Society: Global Research Analysis

et al. 2020

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Few decades ago, the development of the industrial sector was disconnected from society’s protection. Negative effects awareness emerges from the current industrial processes through the Sustainable Development Goals (SDGs), considering the causal implications to build up a more sustainable society. The aim of this study is to analyze the state of the art in industrial processes management to obtain positive and sustainable effects on society. Thus, a bibliometric analysis of 1911 articles was set up during the 1988–2019 period, bringing up the authors’ productivity indicators in the scientific field, that is, journals, authors, research institutions, and countries. We have identified environmental management; the impact assessments of industrial processes on the environment and its relation with a more sustainable society; as well as the study of the sustainable management of water resources as the related axes in the study of environmental protection with political, economic, and educational approaches. The growing trend of world scientific publications let us observe the relevance of industrial processes management in the implementation of efficient models to achieve sustainable societies. This research contributes to the academic, scientific, and social debate on decision-making both in public and private institutions, and in multidisciplinary groups.

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An integrative approach of the use of recycled concrete aggregate in high‐rise buildings: Example of the Elysium

Ulucan

Alyamaç

2022

Structural Concrete

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The primary purpose of this study is to examine in detail the mechanical, environmental, and economic properties of concrete produced using recycled concrete aggregate (RCA) in different ratios. This study used RCAs obtained from construction and demolition wastes (CDW) that emerged after the 24 January 2020 Sivrice‐Elazig earthquake to produce recycled aggregate concretes. The ultimate aim of this study is to determine the advantages and disadvantages of these structures in terms of mechanical, environmental, and economic properties if RCA will be used at certain rates in high‐rise private buildings built with natural aggregate concrete (NAC) in Elazig. For this purpose, concretes with all natural aggregates, all recycled aggregates, and both natural aggregates and recycled aggregates were produced. A mathematical model was developed using response surface method to predict the mechanical properties of recycled coarse aggregate concretes (RCACs) by utilizing the compressive strength values of the produced concretes. Then, the component amounts of RCACs, which have the same compressive strength as the compressive strength values of the NAC used in Elysium, which was chosen as a sample building in Elazig, were estimated. Considering the estimated component amounts, environmental impact assessments and feasibility analyses were made according to four different scenarios, including parameters such as cement amount, chemical additive amount, the cost difference between RCA‐natural coarse aggregate, and transportation distance. As a result of these evaluations and analyses, it was foresighted that using RCA would provide significant advantages in buildings produced using large amounts of concrete. This foresight is exemplified by the Elysium buildings. As a result, it was determined that the use of RCAs is appropriate, especially the concrete produced with aggregates obtained from CDW is more important for a sustainable environment, and the use of RCAs in high‐rise buildings built using large amounts of concrete can provide significant environmental and economic advantages.

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Environmental evaluation of concrete with sewage sludge ash based on LCA

Cited by 75 publications

References 26 publications

Lca of Heavy Metals Leaching From Landfilled Sewage Sludge Ash

Lca of Heavy Metals Leaching From Landfilled Sewage Sludge Ash

Industrial Processes Management for a Sustainable Society: Global Research Analysis

An integrative approach of the use of recycled concrete aggregate in high‐rise buildings: Example of the Elysium

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