Sustinere: Journal of Environment and Sustainability最新文献_第4页

Conversion of waste polypropylene disposable cups into liquid fuels by thermal and catalytic pyrolysis using activated carbon 利用活性炭热裂解和催化裂解将废旧聚丙烯一次性杯转化为液体燃料

Sustinere: Journal of Environment and Sustainability Pub Date : 2022-04-30 DOI: 10.22515/sustinerejes.v6i1.190

Ramesh Babu Aremanda, R.K. Singh

{"title":"Conversion of waste polypropylene disposable cups into liquid fuels by thermal and catalytic pyrolysis using activated carbon","authors":"Ramesh Babu Aremanda, R.K. Singh","doi":"10.22515/sustinerejes.v6i1.190","DOIUrl":"https://doi.org/10.22515/sustinerejes.v6i1.190","url":null,"abstract":"Polypropylene plastics are used extensively in packaging and food services for short usage, poses enormous disposal problem and contributing to over 45 % of globally generated plastic waste. Accordingly, the present work is focused on converting waste polypropylene(WPP) disposable cups in to liquid fuels by employing thermal and catalytic pyrolysis processes. Characterization of WPP disposable cups were performed through proximate and ultimate analyses followed by TGA and found that 86% of its mass degrades in a temperature range of 430 – 603 oC. Effect of temperature in the range of 500 – 650 oC on liquid fuel production at a constant heating rate of 15 oC/min were noted in thermal pyrolysis, an optimum and stable liquid fraction of 76 % with a reaction time of 30 min was recorded at 500 oC. For studies on catalytic pyrolysis, activated carbon (AC) was applied from 470 to 530 oC at variable Feed to Catalyst (F/C) ratio of 1- 4, an optimum liquid yield of 74 % was obtained with a residence time of 35 min at 510 oC and F/C of 3:1. Thermo-physical properties of optimal liquid products were comparable with conventional fossil fuels. XRD and SEM analysis of AC catalyst were showed the presence of carbon at 24o and 42o of 2θ-angle with an apparel pore size of 2 µm.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46243502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis on strategic and environmental issues of remanufacturing in India 印度再制造战略与环境问题分析

Sustinere: Journal of Environment and Sustainability Pub Date : 2022-04-30 DOI: 10.22515/sustinerejes.v6i1.199

A. Sinha

引用次数: 0

Deployment of treated and compressed biogas as a sustainable fuel for ceramic kiln firing 使用经处理和压缩的沼气作为陶瓷窑烧制的可持续燃料

Sustinere: Journal of Environment and Sustainability Pub Date : 2022-04-30 DOI: 10.22515/sustinerejes.v6i1.192

E. Abubakar, Rahmatu Yunusa Shariff, Yusuf Sadiq

引用次数: 2

Comparative analysis on perspectives of environmental and non-environmental NGOs on solid waste management in Jos metropolis, Nigeria 尼日利亚乔斯都市环境与非环境非政府组织对固体废物管理观点的比较分析

Sustinere: Journal of Environment and Sustainability Pub Date : 2022-04-30 DOI: 10.22515/sustinerejes.v6i1.207

Optimist Yohanna Habila

{"title":"Comparative analysis on perspectives of environmental and non-environmental NGOs on solid waste management in Jos metropolis, Nigeria","authors":"Optimist Yohanna Habila","doi":"10.22515/sustinerejes.v6i1.207","DOIUrl":"https://doi.org/10.22515/sustinerejes.v6i1.207","url":null,"abstract":"This study aimed to make comparative analysis of perspectives of environmental and non-environmental NGOs in Jos Metropolis on key solid waste issues with a view to provide relevant data that would hopefully help in facilitating collaboration between the state and NGOs as well as between NGOs and relevant local and international development partners. Using purposive approach, 115 NGOs in the study area were identified and given the same questionnaire. The study revealed that there are just as many NGOs working in solid waste management (SWM) as there are NGOs that are not (50% each) and there was a link between the NGO categories across all of the parameters considered in the study. It also demonstrated that NGOs' organizational viewpoint on the solid waste issues examined in the study is unaffected by their orientation or primary field of activity, and that registration as a non-environmental NGO is not a disincentive to intervening the area of environment, particularly SWM. It is recommended that the state government adopts an all-encompassing approach or framework that allows for active NGO participation including all relevant stakeholders in the SWM initiatives undertaken by the responsible government agency. Similarly, local and development partners with interest in environmental protection need to assist the NGOs by partnering with them through funding, technical support, and research among other things.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43690248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Noise from the traffic volume of motorcycle during the Covid-19 pandemic: A case study of Wiyata Mandala Junior High Schoool Bogor 新冠肺炎大流行期间摩托车交通量产生的噪音：以波哥大维亚塔·曼达拉初中为例

Sustinere: Journal of Environment and Sustainability Pub Date : 2022-04-30 DOI: 10.22515/sustinerejes.v6i1.194

S. Syaiful, H. Siregar, E. Rustiadi, E. Hariyadi, Muhammad Nanang Prayudyanto, Rulhendri Rulhendri

{"title":"Noise from the traffic volume of motorcycle during the Covid-19 pandemic: A case study of Wiyata Mandala Junior High Schoool Bogor","authors":"S. Syaiful, H. Siregar, E. Rustiadi, E. Hariyadi, Muhammad Nanang Prayudyanto, Rulhendri Rulhendri","doi":"10.22515/sustinerejes.v6i1.194","DOIUrl":"https://doi.org/10.22515/sustinerejes.v6i1.194","url":null,"abstract":"Each motor vehicle produces a variety of noise. For areas which directly intersects the highway this noise has a considerable impact. The volume of motorcycles and private as well as public vehicles all have a significant effect on noise. From all analytical calculations, the largest equation was obtained one the second day of research on the second point of Sound Level Meter 2 (SLM2). The calculation is that y = 0,0158x – 1,0176. This equation indicates that if there is no decrease in the volume of the motorcycle, the noise level on the SLM2 is 65.21 dBA. If there is an increase or decrease in the volume of a motorcycle, it will have a significant effect on noise. The second largest equation was obtained on the second day of the research at the third point from the Sound Level Meter 3 (SLM3) and the calculation of the equation is y = 0,01 – 6,074. The purpose of the above equation is that if there is an increase in the volume of a motorcycle, the noise on the SLM3 is 60.840 dBA. According to the findings, there was a reduction in the number of motorcycles during the Covid-19 pandemic, because schools were closed and students did not attend school.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48462702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Conceptual framework for integrating environmental sustainability into supplier selection in procurement decisions 将环境可持续性纳入采购决策中供应商选择的概念框架

Sustinere: Journal of Environment and Sustainability Pub Date : 2021-12-31 DOI: 10.22515/sustinere.jes.v5i3.182

J. Ayarkwa, Tonny Ograh, D. Osei-Asibey, A. Acheampong, P. Amoah

{"title":"Conceptual framework for integrating environmental sustainability into supplier selection in procurement decisions","authors":"J. Ayarkwa, Tonny Ograh, D. Osei-Asibey, A. Acheampong, P. Amoah","doi":"10.22515/sustinere.jes.v5i3.182","DOIUrl":"https://doi.org/10.22515/sustinere.jes.v5i3.182","url":null,"abstract":"Theories are used to improve conceptualization of research ideas. These theories enhance valuable elucidations that helps us to grasp the meaning of research findings. Nevertheless, the use of theories to promote studies in green supplier selection in procurement decisions has attracted little attention. With the emergence of sustainable procurement, public procurement practitioners in Ghana are yet to achieve relevant knowledge on green supplier selections due to insufficient knowledge and inadequate appropriate frameworks. The flagrancy of the consequences of public procurers’ failure to integrate environmental considerations into supplier selection explains the adoption of a multi-theory approach for comprehension of the dynamics of green integration into supplier selection. In this paper, the practicality of three theories for improving the understanding of the influential factors enhancing the integration of environmental sustainability into supplier selection was reviewed. The three theories are: Resource Based Theory, Human Capital Theory and Absorptive Capacity Theory. This review uncovered knowledge management, top management commitment, and environmental management capabilities as important elements needed for the integration of environmental sustainability into supplier selection in public procurement. The theoretical review yielded a framework that conceptualizes knowledge and capabilities of practitioners relevant to incorporation of environmental sustainability into supplier selection in public procurement.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47297036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effects of drought and their mitigation strategies in Yobe State, Nigeria 尼日利亚约贝州干旱的影响及其缓解战略

Sustinere: Journal of Environment and Sustainability Pub Date : 2021-12-31 DOI: 10.22515/sustinere.jes.v5i3.189

A. Gana, M. Fullen, D. Oloke

{"title":"Effects of drought and their mitigation strategies in Yobe State, Nigeria","authors":"A. Gana, M. Fullen, D. Oloke","doi":"10.22515/sustinere.jes.v5i3.189","DOIUrl":"https://doi.org/10.22515/sustinere.jes.v5i3.189","url":null,"abstract":"Drought is regarded as a natural phenomenon and its impacts accumulate slowly over a long period. It is considered to be insufficient precipitation that leads to water scarcity, as triggered by meteorological parameters, such as temperature, precipitation and humidity. However, drought mitigation has mostly been reactive, but this has been challenged by extreme events globally. Many countries and regions around the world have made efforts in mitigating drought impacts, including Nigeria. This study produced frameworks for drought amelioration and management as a planning tool for Yobe State, Nigeria. Drought coping strategies have also caused environmental degradation in Yobe State. Farmers over-harvest their farms, practise deforestation and over-exploit wild animals. Several efforts to mitigate the impacts of drought by the Nigerian Government have failed, thus this research adopts a bottom-top approach to mitigate drought impacts in Yobe State. Four validated drought mitigation and management frameworks were developed for Yobe State. The frameworks were evaluated pre-use through respondent validation. State officials and farmers believed that these frameworks will reduce the impacts of drought in Yobe State. The frameworks include social, economic, environmental impact mitigation and an Integrated Drought Mitigation and Management Framework. The proposed frameworks were designed and have advocates a paradigm shift, using both proactive and reactive measures.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44818927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Company perspectives from Trinidad and Tobago on renewable energy management systems and energy efficiencies 特立尼达和多巴哥公司对可再生能源管理系统和能源效率的看法

Sustinere: Journal of Environment and Sustainability Pub Date : 2021-12-30 DOI: 10.22515/sustinere.jes.v5i3.105

Natasha Ramkissoon-Babwah, Septin Puji Astuti

引用次数: 0

Utilization of Corn (Zea Mays) wastes in Bioethanol production by Separate Hydrolysis and Fermentation 玉米废弃物在分离水解发酵生产生物乙醇中的利用

Sustinere: Journal of Environment and Sustainability Pub Date : 2021-12-28 DOI: 10.22515/sustinere.jes.v5i3.163

J. Osei

{"title":"Utilization of Corn (Zea Mays) wastes in Bioethanol production by Separate Hydrolysis and Fermentation","authors":"J. Osei","doi":"10.22515/sustinere.jes.v5i3.163","DOIUrl":"https://doi.org/10.22515/sustinere.jes.v5i3.163","url":null,"abstract":"The study investigates the feasibility of producing bioethanol from corn (Zea mays) wastes. Corn cobs, husks and grains were collected from Githurai market and analysis was done in the Kenyatta university laboratory. Wastes were physically pre-treated to increase their surface area for enzymatic reactions. Separate Hydrolysis and Fermentation were carried out by using Aspergillus niger for enzymatic hydrolysis and Saccharomyces cerevisiae yeast for fermentation at different incubation temperatures (28oC, 30oC, 32oC) and times (24, 48, 72 and 96 hours). Fermentation was carried out in 150 ml cotton- plugged conical flasks containing 100 ml sample hydrolysates inoculated with 2 ml cultured yeast suspension. Ethanol concentration was determined by potassium dichromate oxidation method after each incubation time and expressed as % v/v whilst ethanol yield (l/kg) was derived from the ethanol concentration divided by the quantity of substrates used. Maximum yields of 1.84 l/kg, 1.76 l/kg and 2.05 l/kg were obtained from 50 g of pre-treated corn cobs, corn husks and corn grains respectively. The optimum temperature for maximum ethanol yield in all corn substrates was 30oC whilst incubation time 96 hours, 48 hours and 24 hours were optimum for ethanol production in corn cobs, corn husks and corn grains respectively. Results show that bioethanol can easily be produced from corn wastes and is recommended that they are used wisely for energy generation specifically bioethanol to add value to them rather than landfilling.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47819775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Initial investigation of microplastic pollution in river sediments at Yogyakarta City Indonesia 印度尼西亚日惹市河流沉积物中微塑料污染的初步调查

Sustinere: Journal of Environment and Sustainability Pub Date : 2021-12-28 DOI: 10.22515/sustinere.jes.v5i3.178

I. Utami, Pidianto Pidianto, Fahmi Hermawan Tricahya, Suci Rahmawati

{"title":"Initial investigation of microplastic pollution in river sediments at Yogyakarta City Indonesia","authors":"I. Utami, Pidianto Pidianto, Fahmi Hermawan Tricahya, Suci Rahmawati","doi":"10.22515/sustinere.jes.v5i3.178","DOIUrl":"https://doi.org/10.22515/sustinere.jes.v5i3.178","url":null,"abstract":"Microplastics of less than 5 mm have been widely found in the river sediments that cross the city. Sources of microplastic pollutants can be seen in rivers crossing Yogyakarta City studies on microplastic have never been carried out. This study analyzed the abundance and characteristics of microplastics in river sediments of Yogyakarta City. Data collection was carried out in December 2019 in Winongo River, Code River, and Gadjahwong River. Each sample of the three sediments was taken at each point of the three inlets and outlets in Yogyakarta City. The sediment sample was separated to obtain supernatant-containing microplastics. The abundance of microplastics was quantified and grouped based on the shape, size, and color. Data were analyzed using descriptive and inferential statistics to compare the concentration of microplastic in the three rivers. The results showed that the abundance of microplastics ranged from 279.31 to 1,026.93 particles kg-1, with a higher abundance in the inlet than the outlet. The Code River sediment has the highest microplastic abundance, followed by the Gadjahwong River, and Winongo River. The sediment samples in the rivers crossing Yogyakarta City have been contaminated mainly by the fragment-shaped, transparent, and 1-100 µm microplastics.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43004844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3