Research Article
Economy, Energy, and Environment Impact on the Use of Ferronickel Slag Waste for Construction Project in Indonesia
Irmawatty Paula Tamburaka*,
Romy Suryaningrat Edwin
Issue:
Volume 9, Issue 4, August 2024
Pages:
90-97
Received:
9 July 2024
Accepted:
7 August 2024
Published:
27 August 2024
Abstract: This research intends to investigate the economic, energy and environmental aspects of mortar and concrete manufactured with ferronickel slag (FNS) as a substitute for cement and aggregate because many infrastructure projects in Indonesia use waste materials, particularly FNS, as one of the construction components. Results indicate that incorporating FNS powder as one material in construction projects also has indirect benefits such as generating employment, and fostering local community economic growth. The grinding of FNS will provide business opportunities for Micro, Small and Medium-sized Enterprises (MSMEs). The use of FNS as sand replacement affords an economy advantage in concrete production which also benefits in the construction sector. In addition, utilizing by-products (FNS 1 and FNS 2) in mortar production has a beneficial effect on lowering the LCC. However, adding FNS in place of sand does not reduce the LCC of concrete constructed with FNS. The usage of FNS in place of cement appears to help reduce mortar's energy consumption. However, using FNS in place of sand throughout the concrete-making process has minimal impact on energy usage. There is an environmental benefit to using FNS 1 and FNS 2 in the mortar production process. When concrete is built using FNS as a sand substitute, the CO2 emission does not show the same favourable outcomes as mortar made with FNS powder. Although it doesn't significantly reduce carbon emissions, FNS sand significantly improves concrete's performance.
Abstract: This research intends to investigate the economic, energy and environmental aspects of mortar and concrete manufactured with ferronickel slag (FNS) as a substitute for cement and aggregate because many infrastructure projects in Indonesia use waste materials, particularly FNS, as one of the construction components. Results indicate that incorporati...
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Research Article
Assessment of Forest Conservation Using Green Bonds as a Tool in Southwestern Nigeria
Opeyemi Oluseyi Ojekunle*,
Oyetayo Job Oyelowo,
Aisha Adeola Olaniyi,
Michael Olusola Majolagbe,
Olaoluwa Coker
Issue:
Volume 9, Issue 4, August 2024
Pages:
98-104
Received:
6 June 2024
Accepted:
2 July 2024
Published:
20 September 2024
DOI:
10.11648/j.ijeee.20240904.12
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Abstract: Green bond is a loan security issued to raise capital precisely for projects that contribute positively to climate, environment and conservation (land and forests). There was little or no information on availability of green bonds among forest stakeholders in Nigeria. This study investigated the level of awareness and accessibility of green bond as a financial tool for forest conservation in Southwestern Nigeria; one of the countries that do not have a well-developed green bond market. A total of 150 copies of structured questionnaire were distributed to the respondents. A multistage sampling technique was adopted for data collection from the study area. Data obtained were collated on Microsoft excel and subjected to descriptive and inferential statistics using Statistical Package for Social Sciences (SPSS). In identifying the level of awareness of respondents on green bond it was discovered that majority (68.3%) of respondents were indirect forest stakeholders and have knowledge on forest conservation. On the other hand, majority of the respondents (70.3%) have not heard about green bonds while 81.4% of the respondents did not understand the term green bond as a sustainable finance instrument for forest conservation. The study also revealed that majority 92.4% of the respondents did not have access to green bond and 91.7% of the respondents reported that it has never been issued to them. Conclusively, the level of awareness and access to green bond among the forest stakeholders for effective forest conservation was very low.
Abstract: Green bond is a loan security issued to raise capital precisely for projects that contribute positively to climate, environment and conservation (land and forests). There was little or no information on availability of green bonds among forest stakeholders in Nigeria. This study investigated the level of awareness and accessibility of green bond as...
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