Pub Date : 2024-05-24DOI: 10.22515/sustinere.jes.v8i1.383
Edeget Merawi, Taye Birhanu Belay
Ocimum americanum (Basil) encompasses various uses. The plant is valued both as a food additive for its aromatic qualities and in folk medicine for treating various ailments. However, its uses, distribution, and the associated community knowledge have not been properly and systematically documented. Therefore, a survey was conducted to explore the bio-prospecting potential of Ocimum americanum and gather baseline information on its community knowledge. Purposive and proportional samplings were used to select districts, villages, users, and growers who participated in the study. The selected districts - Dembiya, Gonder Zuria, Takusa, Alefa, Bahir Dar city, and Bahir Dar Zuria Districts - were selected based on the plant’s growth potential and user availability. Data collection methods included semi-structured interviews, group discussions, and field observations. The findings revealed that basil is used for various purposes: ailment treatment (32.67%), food flavoring (26.6%), food preservative (7.7%), and to impart aroma to different foods (8.33%). Specifically, 32.67 % of the respondents used Ocimum americanum for traditional medicine purposes, primarily to treat depression/headaches, stomach aches, and ward off evil spirits. The methods for preparation and administration included concoction (21.05 %), direct application of plant parts (15.79%), grinding (15.79%), melting (5.26%), Fumigation (10.53%), and inhalation (31.58%). Medicinal dosage varied among users depending on the intensity, type, experience, and the severity of the disease. Nine traditional foods spiced, with basil were identified, with the highest fidelity level for basil use being food flavoring (18.33%) followed by preservation (18.33%). The direct matrix analysis indicated that chilli pepper spice was the most preferred local food sweetened by basil, followed by hot-spiced pepper. This study highlights the traditional foods spiced with basil and providesvaluable insights for bio-prospecting companies in the food and pharmacological industries.
罗勒（Ocimum americanum）有多种用途。这种植物因其芳香特质而被视为食品添加剂，同时也是治疗各种疾病的民间药物。然而，它的用途、分布以及相关的社区知识尚未得到适当和系统的记录。因此，我们开展了一项调查，以探索欧加木的生物勘探潜力，并收集有关其社区知识的基线信息。在选择参与研究的地区、村庄、使用者和种植者时，采用了有目的和按比例的抽样方法。所选地区包括 Dembiya、Gonder Zuria、Takusa、Alefa、Bahir Dar 市和 Bahir Dar Zuria 区，这些地区的选择是基于该植物的生长潜力和用户可用性。数据收集方法包括半结构式访谈、小组讨论和实地观察。调查结果显示，罗勒有多种用途：治疗疾病（32.67%）、食品调味（26.6%）、食品防腐（7.7%）以及为不同食品增添香味（8.33%）。具体而言，32.67%的受访者将欧加马用于传统医药，主要用于治疗抑郁/头痛、胃痛和辟邪。制剂和用药方法包括调制（21.05%）、直接涂抹植物部分（15.79%）、研磨（15.79%）、熔化（5.26%）、熏蒸（10.53%）和吸入（31.58%）。不同使用者的用药剂量各不相同，取决于疾病的强度、类型、经验和严重程度。九种用罗勒调味的传统食品被确认，罗勒使用的最高保真度是食品调味（18.33%），其次是防腐（18.33%）。直接矩阵分析表明，辣椒香料是最受欢迎的用罗勒调味的当地食品，其次是辣椒香料。这项研究强调了用罗勒调味的传统食品，为食品和制药行业的生物勘探公司提供了宝贵的见解。
{"title":"Distribution, local use, and bio-prospecting opportunity of Ocimum americanum L. in Northwestern part of the Amhara Region, Ethiopia","authors":"Edeget Merawi, Taye Birhanu Belay","doi":"10.22515/sustinere.jes.v8i1.383","DOIUrl":"https://doi.org/10.22515/sustinere.jes.v8i1.383","url":null,"abstract":"Ocimum americanum (Basil) encompasses various uses. The plant is valued both as a food additive for its aromatic qualities and in folk medicine for treating various ailments. However, its uses, distribution, and the associated community knowledge have not been properly and systematically documented. Therefore, a survey was conducted to explore the bio-prospecting potential of Ocimum americanum and gather baseline information on its community knowledge. Purposive and proportional samplings were used to select districts, villages, users, and growers who participated in the study. The selected districts - Dembiya, Gonder Zuria, Takusa, Alefa, Bahir Dar city, and Bahir Dar Zuria Districts - were selected based on the plant’s growth potential and user availability. Data collection methods included semi-structured interviews, group discussions, and field observations. The findings revealed that basil is used for various purposes: ailment treatment (32.67%), food flavoring (26.6%), food preservative (7.7%), and to impart aroma to different foods (8.33%). Specifically, 32.67 % of the respondents used Ocimum americanum for traditional medicine purposes, primarily to treat depression/headaches, stomach aches, and ward off evil spirits. The methods for preparation and administration included concoction (21.05 %), direct application of plant parts (15.79%), grinding (15.79%), melting (5.26%), Fumigation (10.53%), and inhalation (31.58%). Medicinal dosage varied among users depending on the intensity, type, experience, and the severity of the disease. Nine traditional foods spiced, with basil were identified, with the highest fidelity level for basil use being food flavoring (18.33%) followed by preservation (18.33%). The direct matrix analysis indicated that chilli pepper spice was the most preferred local food sweetened by basil, followed by hot-spiced pepper. This study highlights the traditional foods spiced with basil and providesvaluable insights for bio-prospecting companies in the food and pharmacological industries.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141102758","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}
Pub Date : 2024-05-20DOI: 10.22515/sustinere.jes.v8i1.385
Dorcas Wambui Kariuki, S. Letema, Godwin Opinde
Urbanization can create uncertainty for biodiversity. Understanding the spatial distribution of trees along urban-rural gradients is crucial for sustainable land management and the conservation of biological diversity. However, limited information is available on the factors influencing the distribution of trees outside forests along urban-rural transition gradients. This paper uses the Preferred Reporting items for Systematic Reviews and Meta-Analyses (PRISMA) to review how distance from urban centers, land use types, socio-economic disparities, and community attitudes and perceptions impact the spatial distribution of trees outside forests along urban-rural gradients. The review indicates that the species composition, diversity, density, and spatial arrangement of trees outside forests vary along the urban-rural gradient. The most commonly cited factors influencing this distribution are respondents' attitudes and perceptions of trees, socio-economic factors, and land use variations. Distance from the urban center was the least cited factor. However, there is significant variation in how different factors impact this distribution from study to study. Therefore, further research is needed to better understand the factors driving changes in the diversity of trees outside forests in various urban-rural contexts and to determine whether variations exist across different settings.
{"title":"Determinants of spatial distribution of trees outside forests along urban-rural gradients: A review","authors":"Dorcas Wambui Kariuki, S. Letema, Godwin Opinde","doi":"10.22515/sustinere.jes.v8i1.385","DOIUrl":"https://doi.org/10.22515/sustinere.jes.v8i1.385","url":null,"abstract":"Urbanization can create uncertainty for biodiversity. Understanding the spatial distribution of trees along urban-rural gradients is crucial for sustainable land management and the conservation of biological diversity. However, limited information is available on the factors influencing the distribution of trees outside forests along urban-rural transition gradients. This paper uses the Preferred Reporting items for Systematic Reviews and Meta-Analyses (PRISMA) to review how distance from urban centers, land use types, socio-economic disparities, and community attitudes and perceptions impact the spatial distribution of trees outside forests along urban-rural gradients. The review indicates that the species composition, diversity, density, and spatial arrangement of trees outside forests vary along the urban-rural gradient. The most commonly cited factors influencing this distribution are respondents' attitudes and perceptions of trees, socio-economic factors, and land use variations. Distance from the urban center was the least cited factor. However, there is significant variation in how different factors impact this distribution from study to study. Therefore, further research is needed to better understand the factors driving changes in the diversity of trees outside forests in various urban-rural contexts and to determine whether variations exist across different settings.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141122875","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}
Pub Date : 2024-05-20DOI: 10.22515/sustinere.jes.v8i1.382
A. J. Nnawuike, A. Udebuani, Nwachukwu Udodi Chibuike, Igwe Charles Ekene, Dike Kelechi Stanley, Nzenwa Peter Odinaka, Igbokwe Moses Chukwuebuka
The study aimed to assess the ecotoxicological risk associated with the indiscriminate disposal of spent engine oil on terrestrial ecosystem using earthworm and microbial assays. Soil samples were collected from a depth of 0-20 cm and subjected to standard analytical protocols for analysis. Earthworms (assessed by mortality rate) and microorganisms (evaluated for inhibitory effects) covered a wide range of short-term lethal and sub-lethal endpoints used for risk characterization, analyzed through Probit analysis. The result of acute toxicity assay revealed that microbial absorbance rated depended on the dose and type of organism, ranking in the order: Acinetobacter > Enterobacter > Bacillus species >Pseudomonas. Aas oil concentratoin increase, mortality among earthworm was observed. Risk Quotient (RQ) values for Zea mays, Vigna unguiculata, Glycine max and earthworm varied from low to very high risk based on estimated Predicted No Effect Concentration (PNEC) values. Microorganisms exhibited differing level of biotolerance to spent engine oil exposure as indicated by respective risk quotient values. Exposure to spent engine oil posed minimal risk to Pseudomonas sp., Bacillus sp., and Acinetobacter sp., with RQ values below unity (< 1). Conversely, Enterobacter sp. Showed a high risk with values above unity. Earthworms play a pivotal role in agriculture due to their numerous economic benefots. Soil microorganisms are essential for maintening soil quality by performing vital processes. The antimicrobial properties of spent engine oil on soil may distort microbial activities, potentially inhibiting their growth and leading to alterations in ecological functionality of the soil.
{"title":"Ecological risk evaluation of spent engine oil pollution using earthworm and microbial bioassays","authors":"A. J. Nnawuike, A. Udebuani, Nwachukwu Udodi Chibuike, Igwe Charles Ekene, Dike Kelechi Stanley, Nzenwa Peter Odinaka, Igbokwe Moses Chukwuebuka","doi":"10.22515/sustinere.jes.v8i1.382","DOIUrl":"https://doi.org/10.22515/sustinere.jes.v8i1.382","url":null,"abstract":"The study aimed to assess the ecotoxicological risk associated with the indiscriminate disposal of spent engine oil on terrestrial ecosystem using earthworm and microbial assays. Soil samples were collected from a depth of 0-20 cm and subjected to standard analytical protocols for analysis. Earthworms (assessed by mortality rate) and microorganisms (evaluated for inhibitory effects) covered a wide range of short-term lethal and sub-lethal endpoints used for risk characterization, analyzed through Probit analysis. The result of acute toxicity assay revealed that microbial absorbance rated depended on the dose and type of organism, ranking in the order: Acinetobacter > Enterobacter > Bacillus species >Pseudomonas. Aas oil concentratoin increase, mortality among earthworm was observed. Risk Quotient (RQ) values for Zea mays, Vigna unguiculata, Glycine max and earthworm varied from low to very high risk based on estimated Predicted No Effect Concentration (PNEC) values. Microorganisms exhibited differing level of biotolerance to spent engine oil exposure as indicated by respective risk quotient values. Exposure to spent engine oil posed minimal risk to Pseudomonas sp., Bacillus sp., and Acinetobacter sp., with RQ values below unity (< 1). Conversely, Enterobacter sp. Showed a high risk with values above unity. Earthworms play a pivotal role in agriculture due to their numerous economic benefots. Soil microorganisms are essential for maintening soil quality by performing vital processes. The antimicrobial properties of spent engine oil on soil may distort microbial activities, potentially inhibiting their growth and leading to alterations in ecological functionality of the soil. ","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141123285","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}
Pub Date : 2024-05-20DOI: 10.22515/sustinere.jes.v8i1.370
Riza Hudayarizka, U. Sholikah, Dini Tri Budiarti
Fossil energy is among the most widely utilized energy sources in Indonesian industry, but its continuous use is leading to its depleted. Refuse-derived fuel (RDF) offers an alternative made from organic and inorganic waste. Durian peel is identified as a promising raw material for RDF due to its high calorific value of 6,274 Kcal/kg. Additionally, Lubricant Treatment Sludge (LTS), which is collected from the oil treatment industry, is used to enhance RDF’s calorific value, as it contains residual oil rich in hydrocarbons. To bind the RDF components, tapioca starch, durian seeds, and rejected papaya were selected as adhesives. The mixture ratios of durian skin, LTS, and adhesive were tested at compositions (90:0:10), (85:5:10), (80:10:10), (75:15:10), and (70:20:10). Subsequent RDF characteristics analyses included tests for moisture content, ash content, volatile matter, fixed carbon, and calorific value. Based on these evaluations, the most optimal composition was determined to be 90% durian peel, 0% LTS, and 10% tapioca starch adhesive. This composition exhibited a moisture content of 1.6%, volatile matter of 74.6%, ash content of 8.4%, fixed carbon of 15.2%, and a calorific value of 3,516 Kcal/kg. Tapioca starch emerged as preferred adhesive due to its favorable properties and characteristics.
{"title":"Utilization of durian peels (Durio zibethinus) and lubricant treatment sludge as raw materials of Refuse-Derived Fuel","authors":"Riza Hudayarizka, U. Sholikah, Dini Tri Budiarti","doi":"10.22515/sustinere.jes.v8i1.370","DOIUrl":"https://doi.org/10.22515/sustinere.jes.v8i1.370","url":null,"abstract":"Fossil energy is among the most widely utilized energy sources in Indonesian industry, but its continuous use is leading to its depleted. Refuse-derived fuel (RDF) offers an alternative made from organic and inorganic waste. Durian peel is identified as a promising raw material for RDF due to its high calorific value of 6,274 Kcal/kg. Additionally, Lubricant Treatment Sludge (LTS), which is collected from the oil treatment industry, is used to enhance RDF’s calorific value, as it contains residual oil rich in hydrocarbons. To bind the RDF components, tapioca starch, durian seeds, and rejected papaya were selected as adhesives. The mixture ratios of durian skin, LTS, and adhesive were tested at compositions (90:0:10), (85:5:10), (80:10:10), (75:15:10), and (70:20:10). Subsequent RDF characteristics analyses included tests for moisture content, ash content, volatile matter, fixed carbon, and calorific value. Based on these evaluations, the most optimal composition was determined to be 90% durian peel, 0% LTS, and 10% tapioca starch adhesive. This composition exhibited a moisture content of 1.6%, volatile matter of 74.6%, ash content of 8.4%, fixed carbon of 15.2%, and a calorific value of 3,516 Kcal/kg. Tapioca starch emerged as preferred adhesive due to its favorable properties and characteristics.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141122487","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}
This study aims to analyze the level of sustainability awareness among university students, especially focusing on their knowledge, attitudes, and behavior related to sustainability across three main dimensions: environmental, social, and economic. Additionally, the study explores whether these behaviors are influenced by individuals’ beliefs about their ability to effect change. This study employed a quantitative approach involving all active students enrolled in the Faculty of Economics and Business, Universitas Negeri Semarang. A samples of 233 respondents was selected using a non-probability sampling method. Data was collected through a questionnaire and analyzed using the Structural Equation Modeling Partial Least Square method. The study findings reveal that attitude towards sustainability have stronger influence on behavior than knowledge. Respondents' demonstrated a higher level of understanding of sustainability compared to their attitudes and behaviors towards it. Furthermore, concerns to economic aspects were found to impact sustainability behaviors. Most respondents expressed a belief that events around them are beyond their control. This article is expected to significantly contribute to aligning policies and practices, particularly in fostering sustainability awareness, and serve as a basis for achieving sustainable development initiatives.
{"title":"Sustainability consciousness in higher education: Construction of three-dimensional sustainability and role of locus of control","authors":"Nina Farliana, Hanif Hardianto, Rusdarti Rusdarti, Wijang Sakitri","doi":"10.22515/sustinere.jes.v8i1.374","DOIUrl":"https://doi.org/10.22515/sustinere.jes.v8i1.374","url":null,"abstract":"This study aims to analyze the level of sustainability awareness among university students, especially focusing on their knowledge, attitudes, and behavior related to sustainability across three main dimensions: environmental, social, and economic. Additionally, the study explores whether these behaviors are influenced by individuals’ beliefs about their ability to effect change. This study employed a quantitative approach involving all active students enrolled in the Faculty of Economics and Business, Universitas Negeri Semarang. A samples of 233 respondents was selected using a non-probability sampling method. Data was collected through a questionnaire and analyzed using the Structural Equation Modeling Partial Least Square method. The study findings reveal that attitude towards sustainability have stronger influence on behavior than knowledge. Respondents' demonstrated a higher level of understanding of sustainability compared to their attitudes and behaviors towards it. Furthermore, concerns to economic aspects were found to impact sustainability behaviors. Most respondents expressed a belief that events around them are beyond their control. This article is expected to significantly contribute to aligning policies and practices, particularly in fostering sustainability awareness, and serve as a basis for achieving sustainable development initiatives.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141122237","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}
Pub Date : 2023-10-07DOI: 10.22515/sustinerejes.v7i2.267
Etido Udoh Elijah
The provision of clean water, microorganisms-free water is crucial in preventing the transmission of waterborne diseases. This study was conducted with the objective of evaluating the bacteriological quality of water sources accessible to students within Nasarawa State University Keffi. Sixteen samples, comprising ten from piped source, three from boreholes, and three from wells, were subjected to bacteriological quality assessment. The total bacterial count was analyzed using the pour plate technique, while the total coliform count and bacteriological index were assessed through the most probable number technique. Among the various water sources examine, pipe-borne water exhibited the lower bacterial contamination with a mean of 0.6×106 CFU/100 mL in contrast to borehole and well water sources, which recorded mean of 1.6×106 and 3.2×106 CFU/100 mL, respectively. Additionally, pipe-borne water demonstrated the lowest mean total coliform count, registering 22 MPN/100 mL. Notably, Notably, the water samples were found to harbor bacteria such as Escherichia coli, Klebsiella pneumonia, Enterobacter aerogens, and Citrobacter sp. Alarming findings from this study highlight the unsuitability of most water samples for human consumption, as they fail to meet the quality standards established by the World Health Organization. Consequently, it is necessary to implement measures aimed at safeguarding water sources from contamination and curbing the proliferation of diseases. Furthermore, it is pertinent to prioritize adequate treatment of domestic water sources prior to consumption to ensure public health and well-being.
{"title":"Bacteriological assessment of pipe-borne, borehole, and well water sources available to students in Nasarawa State University Keffi, Nasarawa State, Nigeria","authors":"Etido Udoh Elijah","doi":"10.22515/sustinerejes.v7i2.267","DOIUrl":"https://doi.org/10.22515/sustinerejes.v7i2.267","url":null,"abstract":"The provision of clean water, microorganisms-free water is crucial in preventing the transmission of waterborne diseases. This study was conducted with the objective of evaluating the bacteriological quality of water sources accessible to students within Nasarawa State University Keffi. Sixteen samples, comprising ten from piped source, three from boreholes, and three from wells, were subjected to bacteriological quality assessment. The total bacterial count was analyzed using the pour plate technique, while the total coliform count and bacteriological index were assessed through the most probable number technique. Among the various water sources examine, pipe-borne water exhibited the lower bacterial contamination with a mean of 0.6×106 CFU/100 mL in contrast to borehole and well water sources, which recorded mean of 1.6×106 and 3.2×106 CFU/100 mL, respectively. Additionally, pipe-borne water demonstrated the lowest mean total coliform count, registering 22 MPN/100 mL. Notably, Notably, the water samples were found to harbor bacteria such as Escherichia coli, Klebsiella pneumonia, Enterobacter aerogens, and Citrobacter sp. Alarming findings from this study highlight the unsuitability of most water samples for human consumption, as they fail to meet the quality standards established by the World Health Organization. Consequently, it is necessary to implement measures aimed at safeguarding water sources from contamination and curbing the proliferation of diseases. Furthermore, it is pertinent to prioritize adequate treatment of domestic water sources prior to consumption to ensure public health and well-being.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135252270","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}
Pub Date : 2023-09-02DOI: 10.22515/sustinerejes.v7i1.344
Andriyan Yulikasari, Ervin Nurhayati, Fransiscus Xaverius Fernando Cornelio, Diah Susanti
Spent bleaching earth and ZnO composite (SBE/ZnO) was prepared as the catalyst for the advanced oxidation processes (AOPs) of rhodamine B (RB) under O3/UV. The photocatalytic ozonation process of RB was conducted at an ozone flow rate of 1 L/min by adjusting the variation of initial RB concentration, catalyst dosage, and reaction time. The RB removal efficiency of 96.7% was reached within 36 min at optimal operational conditions (initial concentration of 100 mg/L and catalyst dosage of 1.5 g). The kinetical analysis at this condition showed that the photocatalytic ozonation process of RB followed a pseudo-first-order reaction with a rate constant of 0.0975 min-1. Meanwhile, the effect of operational variables was evaluated using response surface methodology (RSM) and resulted in an optimized model for RB Removal following equation: RB Removal = 84.95 - 6.24A + 5.81B + 22.45C + 3.07AB + 13.14AC - 6.72BC + 0.1174A2 + 7.86B2 - 8.90C2, where A is the initial concentration of RB, B is catalyst dose and C is reaction time, with a high coefficient of determination R2 = 0.9432.
{"title":"Advance oxidation processes of Rhodamine B under O3/UV using spent bleaching earth-ZnO composite: Performance in kinetics","authors":"Andriyan Yulikasari, Ervin Nurhayati, Fransiscus Xaverius Fernando Cornelio, Diah Susanti","doi":"10.22515/sustinerejes.v7i1.344","DOIUrl":"https://doi.org/10.22515/sustinerejes.v7i1.344","url":null,"abstract":"Spent bleaching earth and ZnO composite (SBE/ZnO) was prepared as the catalyst for the advanced oxidation processes (AOPs) of rhodamine B (RB) under O3/UV. The photocatalytic ozonation process of RB was conducted at an ozone flow rate of 1 L/min by adjusting the variation of initial RB concentration, catalyst dosage, and reaction time. The RB removal efficiency of 96.7% was reached within 36 min at optimal operational conditions (initial concentration of 100 mg/L and catalyst dosage of 1.5 g). The kinetical analysis at this condition showed that the photocatalytic ozonation process of RB followed a pseudo-first-order reaction with a rate constant of 0.0975 min-1. Meanwhile, the effect of operational variables was evaluated using response surface methodology (RSM) and resulted in an optimized model for RB Removal following equation: RB Removal = 84.95 - 6.24A + 5.81B + 22.45C + 3.07AB + 13.14AC - 6.72BC + 0.1174A2 + 7.86B2 - 8.90C2, where A is the initial concentration of RB, B is catalyst dose and C is reaction time, with a high coefficient of determination R2 = 0.9432.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47374344","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}
Pub Date : 2023-09-02DOI: 10.22515/sustinerejes.v7i1.282
Chidinma Ukachukwu, A. Udebuani, Tochukwu Nicholas Ugwu
The consequences of enhanced PAH deposition and accumulation in food crop and other biota can be traced to environmental pollution through human activities which has improved due to industrial revolution. The impact of this phenomena has been observed in the food chain as this toxicant accumulates within its system and therefore, it can be exposed to human being with detrimental effect. The study compared exposure of edible vegetables to PAH from spent engine oil and three purchased PAH component (benzo(a)pyrene, benzo(k)fluoranthene and benzo(ghi)perylene). PAH was extracted from soil and plant using soxhlet extraction method. The health risk review was done using risk assessment model. The unpolluted vegetables showed a higher growth performance when compared to the exposed vegetables pertaining to their bio-tolerance. However, unpolluted vegetable was significantly different (P<0.05) from polluted vegetable. The result showed that Fluoranthene (Flu), benzo(a)Pyrene (B(a)P), Acenaphthene (Ace), Anthracene (Ant), Naphthalene (Nap) and Benzo(b)Fluoranthene obtained from spent engine oil polluted soil (SEOPS) were the most abundant in the soil. However, concentration of commercially purchased benzo(a)pyrene was observed to be higher in plants than (Benzo(k)fluoranthene and Benzo(ghi)perylene) utilized. Bioaccumulation factor total (BAFT) of commercially purchased B(a)P, B(k)F and B(ghi)P showed higher accumulation value (1.8, 1.5), compared to that of spent engine oil in edible vegetables. Analysis of the calculated assessing value (AV), Benzo(a)pyrene toxic equivalent quotient (BaPteq), food daily intake, and margin of exposure (MOE) showed potential risk concern when consumed, except for progressive lifetime cancer risk (PLCR). The PLCR poses relatively low health concern; nevertheless, prolonged exposure to these pollutants can affect humans as it possesses a high potential to bio-accumulate in edible vegetables.
{"title":"Comparative studies on exposure of edible vegetables to spent engine oil and PAH components","authors":"Chidinma Ukachukwu, A. Udebuani, Tochukwu Nicholas Ugwu","doi":"10.22515/sustinerejes.v7i1.282","DOIUrl":"https://doi.org/10.22515/sustinerejes.v7i1.282","url":null,"abstract":"The consequences of enhanced PAH deposition and accumulation in food crop and other biota can be traced to environmental pollution through human activities which has improved due to industrial revolution. The impact of this phenomena has been observed in the food chain as this toxicant accumulates within its system and therefore, it can be exposed to human being with detrimental effect. The study compared exposure of edible vegetables to PAH from spent engine oil and three purchased PAH component (benzo(a)pyrene, benzo(k)fluoranthene and benzo(ghi)perylene). PAH was extracted from soil and plant using soxhlet extraction method. The health risk review was done using risk assessment model. The unpolluted vegetables showed a higher growth performance when compared to the exposed vegetables pertaining to their bio-tolerance. However, unpolluted vegetable was significantly different (P<0.05) from polluted vegetable. The result showed that Fluoranthene (Flu), benzo(a)Pyrene (B(a)P), Acenaphthene (Ace), Anthracene (Ant), Naphthalene (Nap) and Benzo(b)Fluoranthene obtained from spent engine oil polluted soil (SEOPS) were the most abundant in the soil. However, concentration of commercially purchased benzo(a)pyrene was observed to be higher in plants than (Benzo(k)fluoranthene and Benzo(ghi)perylene) utilized. Bioaccumulation factor total (BAFT) of commercially purchased B(a)P, B(k)F and B(ghi)P showed higher accumulation value (1.8, 1.5), compared to that of spent engine oil in edible vegetables. Analysis of the calculated assessing value (AV), Benzo(a)pyrene toxic equivalent quotient (BaPteq), food daily intake, and margin of exposure (MOE) showed potential risk concern when consumed, except for progressive lifetime cancer risk (PLCR). The PLCR poses relatively low health concern; nevertheless, prolonged exposure to these pollutants can affect humans as it possesses a high potential to bio-accumulate in edible vegetables.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41464278","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}
Pub Date : 2023-09-02DOI: 10.22515/sustinerejes.v7i1.249
Abubakar Ahmed Jajere, Abubakar Muhammad Saidu, None Usman Adamu, Usman Ibrahim
Hadejia-Nguru wetlands is known as a joule of the Sahel as it is the major biodiversity reservoir of the Sahelian parts of Nigeria. However, series of impediment that follows the Sahelian drought of 1970s has been altering the ecosystem of the wetlands. The secondary succession of invasive weed that follow the habitat changes has altered the wetlands derived livelihood activities. This study examines the livelihoods constrain of the weeds as well as livelihoods derived from the weeds. Information on biodiversity timeline history, types of weeds that grow on the wetland site, the livelihoods activities derived from the weeds, and the livelihoods constraint of weeds were collected through interviews with key informants and focus group discussion. Three focus group discussions were conducted in six wetlands site communities, with participants including farmers, pastoralists, and other categories of wetland users. The qualitative information collected was analysed using grounded theory tool. The study identified 18 weed species that grow on the Hadejia-Nguru wetlands and discovered that the weeds are sources of raw materials for constructions, craft work, and fodder for animals among others. They also constitute the major constraints to livelihood activities such as fishing, transportation, irrigation, rainfed farming, and domestic water supply, among others. The study concluded that weeds are both a constraint and means of livelihood. Hence, the study’s hypothesis is that ‘’the impact of weeds on livelihoods diminish over time’.’ It is therefore recommended that all the beneficial weeds in the wetlands should be identified and utilized sustainably, while the growth of the bad ones should be controlled.
{"title":"Nexus between weeds secondary succession and livelihoods in Hadejia-Nguru wetlands of Nigeria","authors":"Abubakar Ahmed Jajere, Abubakar Muhammad Saidu, None Usman Adamu, Usman Ibrahim","doi":"10.22515/sustinerejes.v7i1.249","DOIUrl":"https://doi.org/10.22515/sustinerejes.v7i1.249","url":null,"abstract":"Hadejia-Nguru wetlands is known as a joule of the Sahel as it is the major biodiversity reservoir of the Sahelian parts of Nigeria. However, series of impediment that follows the Sahelian drought of 1970s has been altering the ecosystem of the wetlands. The secondary succession of invasive weed that follow the habitat changes has altered the wetlands derived livelihood activities. This study examines the livelihoods constrain of the weeds as well as livelihoods derived from the weeds. Information on biodiversity timeline history, types of weeds that grow on the wetland site, the livelihoods activities derived from the weeds, and the livelihoods constraint of weeds were collected through interviews with key informants and focus group discussion. Three focus group discussions were conducted in six wetlands site communities, with participants including farmers, pastoralists, and other categories of wetland users. The qualitative information collected was analysed using grounded theory tool. The study identified 18 weed species that grow on the Hadejia-Nguru wetlands and discovered that the weeds are sources of raw materials for constructions, craft work, and fodder for animals among others. They also constitute the major constraints to livelihood activities such as fishing, transportation, irrigation, rainfed farming, and domestic water supply, among others. The study concluded that weeds are both a constraint and means of livelihood. Hence, the study’s hypothesis is that ‘’the impact of weeds on livelihoods diminish over time’.’ It is therefore recommended that all the beneficial weeds in the wetlands should be identified and utilized sustainably, while the growth of the bad ones should be controlled.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968398","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}
Pub Date : 2023-09-02DOI: 10.22515/sustinerejes.v7i1.336
A. Fitriana, Achmad Fajrul Akbar, A. Bagastyo
. In 2021, Indonesia produced 64 million tons of waste, with market waste dominating at 22.7%. Organic waste processing can yield biogas, compost and can undergo the bioconversion process using Black Soldier Fly (BSF) larvae. BSF larvae lack cellulose-degrading enzymes. The addition of a fermentation process can increase growth and reduce waste. The research involved adding a fermentation process with two types of fermenters. Fermentation was carried out at different durations to determine to optimal fermentation period. The biodegradable waste utilised was vegetable and fruit waste from the market. As a control, organic waste without fermentation will also be utilized. The results indicated that fermentation had no significant effect on waste reduction. The reduction in fermented and non-fermented waste was 62.97% and 50.67%. Waste reduction is directly related to the larvae’s ability to consume waste. Fermented waste treated with Trichoderma (10 days) had exhibited peak larval growth at 18 days of age, whereas non-fermented waste reached its peak growth at 25 days. The residue from fermented waste had a lower quantity but a higher the C/N ratio of 89.37, while non-fermented waste residue had a greater quantity with a C/N ratio of 62.11.
{"title":"The effect of fermentation process on increasing biodegradable organic waste reduction with Black Soldier Fly (BSF) larva bioconversion method","authors":"A. Fitriana, Achmad Fajrul Akbar, A. Bagastyo","doi":"10.22515/sustinerejes.v7i1.336","DOIUrl":"https://doi.org/10.22515/sustinerejes.v7i1.336","url":null,"abstract":". In 2021, Indonesia produced 64 million tons of waste, with market waste dominating at 22.7%. Organic waste processing can yield biogas, compost and can undergo the bioconversion process using Black Soldier Fly (BSF) larvae. BSF larvae lack cellulose-degrading enzymes. The addition of a fermentation process can increase growth and reduce waste. The research involved adding a fermentation process with two types of fermenters. Fermentation was carried out at different durations to determine to optimal fermentation period. The biodegradable waste utilised was vegetable and fruit waste from the market. As a control, organic waste without fermentation will also be utilized. The results indicated that fermentation had no significant effect on waste reduction. The reduction in fermented and non-fermented waste was 62.97% and 50.67%. Waste reduction is directly related to the larvae’s ability to consume waste. Fermented waste treated with Trichoderma (10 days) had exhibited peak larval growth at 18 days of age, whereas non-fermented waste reached its peak growth at 25 days. The residue from fermented waste had a lower quantity but a higher the C/N ratio of 89.37, while non-fermented waste residue had a greater quantity with a C/N ratio of 62.11.","PeriodicalId":22187,"journal":{"name":"Sustinere: Journal of Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46348624","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}
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