Pub Date : 2024-06-01DOI: 10.12911/22998993/187568
Oleh Bereziuk, M. Pashechko, Valeriy Savulyak, Galyna Kalda, Aleksandra Prus
Here determination of the level dimensions regularity of the multicomponent contamination zones (by heavy metals and petroleum products) of the soils adjacent to the municipal solid waste landfill. The dependences of the mercury, copper and zinc concentrations in the soil on the distance to the landfill of municipal solid waste were determined, similar dependence was specified for petroleum products for a distance of up to 500 m. The research employed the regression analysis technique for investigating single-factor experiments and other paired patterns. The selection of a suitable function was based on commonly utilized options, determined by the criterion of achieving the maximum correlation coefficient value. Regression analyses were conducted by employing linearizing transformations, facilitating the conversion of non-linear regularities into linear forms. Graphical de-pendences, describing the change in the concentrations of individual soil pollutants with the distance from the mu - nicipal solid waste landfill have been built, they enable to demonstrating the satisfactory convergence of theoretical outcomes with empirical observations was achieved. The level regularity of multicomponent soil contamination (with petroleum products and heavy metals) at the distance from the municipal solid waste landfill has been ob - tained, it’s required for determining the dimentions of the zones of multicomponent soil contamination. Applying the method of iterations, the dimensions of the multicomponent contamination zones (with petroleum products and heavy metals) of the soils, adjacent to the landfill of municipal solid waste have been determined: very heavy pollution – 22.93 m, heavy pollution – 81.77 m
{"title":"Investigation into the Contamination of Soil With Multiple Components in the Vicinity of Municipal Solid Waste Landfills","authors":"Oleh Bereziuk, M. Pashechko, Valeriy Savulyak, Galyna Kalda, Aleksandra Prus","doi":"10.12911/22998993/187568","DOIUrl":"https://doi.org/10.12911/22998993/187568","url":null,"abstract":"Here determination of the level dimensions regularity of the multicomponent contamination zones (by heavy metals and petroleum products) of the soils adjacent to the municipal solid waste landfill. The dependences of the mercury, copper and zinc concentrations in the soil on the distance to the landfill of municipal solid waste were determined, similar dependence was specified for petroleum products for a distance of up to 500 m. The research employed the regression analysis technique for investigating single-factor experiments and other paired patterns. The selection of a suitable function was based on commonly utilized options, determined by the criterion of achieving the maximum correlation coefficient value. Regression analyses were conducted by employing linearizing transformations, facilitating the conversion of non-linear regularities into linear forms. Graphical de-pendences, describing the change in the concentrations of individual soil pollutants with the distance from the mu - nicipal solid waste landfill have been built, they enable to demonstrating the satisfactory convergence of theoretical outcomes with empirical observations was achieved. The level regularity of multicomponent soil contamination (with petroleum products and heavy metals) at the distance from the municipal solid waste landfill has been ob - tained, it’s required for determining the dimentions of the zones of multicomponent soil contamination. Applying the method of iterations, the dimensions of the multicomponent contamination zones (with petroleum products and heavy metals) of the soils, adjacent to the landfill of municipal solid waste have been determined: very heavy pollution – 22.93 m, heavy pollution – 81.77 m","PeriodicalId":15652,"journal":{"name":"Journal of Ecological Engineering","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141234224","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 : 2024-06-01DOI: 10.12911/22998993/187957
Artem Tyvonenko, Tetiana Ivanova, Kateryna Halkina, T. Mitchenko, Sergey Vasilyuk, I. Kosogina
contamination of the membrane surface, which causes the need for their
膜表面的污染，因此需要对其进行处理。
{"title":"Recovery of the Properties of Spent Commercial Reverse Osmosis Membrane Elements and Ways of their Reuse","authors":"Artem Tyvonenko, Tetiana Ivanova, Kateryna Halkina, T. Mitchenko, Sergey Vasilyuk, I. Kosogina","doi":"10.12911/22998993/187957","DOIUrl":"https://doi.org/10.12911/22998993/187957","url":null,"abstract":"contamination of the membrane surface, which causes the need for their","PeriodicalId":15652,"journal":{"name":"Journal of Ecological Engineering","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141229735","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 : 2024-06-01DOI: 10.12911/22998993/187276
Anatoly Polevoy, O. Barsukova, K. Husieva, O. Zhygailo, O. Volvach, N. Kyrnasivska, Alla Tolmachova, T. Zhygailo, Natalia Danilova, T. Kostiukievych
The paper considers the peculiarities of the climate change influence on the dynamics of drought development in Ukraine. The analysis was performed for average long-term climatic conditions during the growing season (1981–2020) and under climate change scenarios RCP 4.5 and RCP 8.5 for the period of 2021–2050 (for the period as a whole and by the decades: 2021–2030, 2031–2040, 2041–2050). The drought development was studied over relatively short periods of time (ten days) at the main agroclimatic regions of Ukraine (Polissia, Forest-Steppe, Northern and Southern Steppe). The assessment of the aridity of ten-day periods was accomplished by means of a set of aridity indicators by Selyaninov, Shashko, Budagovskiy and Bova, which corrects and supplements each other; this made it possible to consider in detail the genesis of climate-induced drought in the agroclimatic regions of Ukraine. Analysis of the study results showed that the development of drought conditions in all agro-climatic regions is expected as early as in the first decade (2021–2030). According to both scenarios, from 4–6 in Polissia to 16–17 severe and very severe droughts in the Southern Steppe are expected. In the second decade (2031–2040), under RCP4.5, improvement in moistening conditions is expected in Polissia and Forest-Steppe and under RCP8.5, an increase in the level of aridity is expected in these agroclimatic regions. In the Northern Steppe and Southern Steppe the number of moderately, very and extremely dry ten-day periods will increase (from 9 to 17). In the third decade (2041–2050), under the RCP4.5 scenario, very severe aridity conditions are assumed in all agroclimatic regions. Under RCP8.5, good moistening conditions and, according to both criteria, a small number of dry ten-day periods are expected in Polissia and Forest-Steppe. As for the conditions at the Northern and Southern Steppes very severe drought conditions are expected (from 8 to 17 ten-day periods with moderate, severe and very severe drought). For 2021–2050 on the whole, there will be an increase in aridity during the growing season in all agroclimatic regions of Ukraine.
{"title":"The Climate Change Impact on the Development of Droughts in Ukraine","authors":"Anatoly Polevoy, O. Barsukova, K. Husieva, O. Zhygailo, O. Volvach, N. Kyrnasivska, Alla Tolmachova, T. Zhygailo, Natalia Danilova, T. Kostiukievych","doi":"10.12911/22998993/187276","DOIUrl":"https://doi.org/10.12911/22998993/187276","url":null,"abstract":"The paper considers the peculiarities of the climate change influence on the dynamics of drought development in Ukraine. The analysis was performed for average long-term climatic conditions during the growing season (1981–2020) and under climate change scenarios RCP 4.5 and RCP 8.5 for the period of 2021–2050 (for the period as a whole and by the decades: 2021–2030, 2031–2040, 2041–2050). The drought development was studied over relatively short periods of time (ten days) at the main agroclimatic regions of Ukraine (Polissia, Forest-Steppe, Northern and Southern Steppe). The assessment of the aridity of ten-day periods was accomplished by means of a set of aridity indicators by Selyaninov, Shashko, Budagovskiy and Bova, which corrects and supplements each other; this made it possible to consider in detail the genesis of climate-induced drought in the agroclimatic regions of Ukraine. Analysis of the study results showed that the development of drought conditions in all agro-climatic regions is expected as early as in the first decade (2021–2030). According to both scenarios, from 4–6 in Polissia to 16–17 severe and very severe droughts in the Southern Steppe are expected. In the second decade (2031–2040), under RCP4.5, improvement in moistening conditions is expected in Polissia and Forest-Steppe and under RCP8.5, an increase in the level of aridity is expected in these agroclimatic regions. In the Northern Steppe and Southern Steppe the number of moderately, very and extremely dry ten-day periods will increase (from 9 to 17). In the third decade (2041–2050), under the RCP4.5 scenario, very severe aridity conditions are assumed in all agroclimatic regions. Under RCP8.5, good moistening conditions and, according to both criteria, a small number of dry ten-day periods are expected in Polissia and Forest-Steppe. As for the conditions at the Northern and Southern Steppes very severe drought conditions are expected (from 8 to 17 ten-day periods with moderate, severe and very severe drought). For 2021–2050 on the whole, there will be an increase in aridity during the growing season in all agroclimatic regions of Ukraine.","PeriodicalId":15652,"journal":{"name":"Journal of Ecological Engineering","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141231032","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 : 2024-06-01DOI: 10.12911/22998993/187786
J. R. Amelia, L. Indraningtyas, Annisa Azzahra Aguzaen, U. Hasanudin
Utilization of empty fruit bunches ( EFB) to increase biogas production could be developed through co-digestion of palm oil mill effluent (POME). Pre-treatment of EFB (shredding, grinding, and soaking) before it is utilized as a feedstock for biogas production is important to increase the biodegradability of EFB. The evaluation of the impact of EFB utilization on biogas production should be investigated to determine the optimum process conditions for bio-gas production from EFB and POME. This research consists of three steps: 1) Optimization of size of EFB and ratio of EFB-POME, 2) Optimization of hydrolysis and acidification retention time, and 3) Optimization of biogas production. The research result shows that co-digestion of EFB and POME increases biogas and methane production. Compared to POME only, co-digestion using POME and EFB (shredded 10%, shredded 15%, crushed 10%, and crushed 15%) is increasing biogas production in batch systems by 54.1%, 54.1%, 45.5%, and 75.2%, respectively. The research result also shows that in a continuous system with HRT for 25 days and similar feedstock, biogas production increased by 43.3%, 41.6%, 35.6%, and 62.6%, respectively, with methane concentrations maintained at about 60%. Co-digestion of EFB-POME with 15% crushed EFB is recommended to be applied in palm oil mills to increase biogas production.
{"title":"Study on Co-Digestion of Palm Oil Mill Effluent and Empty Fruit Bunches to Improve Biogas Production in Palm Oil Mill","authors":"J. R. Amelia, L. Indraningtyas, Annisa Azzahra Aguzaen, U. Hasanudin","doi":"10.12911/22998993/187786","DOIUrl":"https://doi.org/10.12911/22998993/187786","url":null,"abstract":"Utilization of empty fruit bunches ( EFB) to increase biogas production could be developed through co-digestion of palm oil mill effluent (POME). Pre-treatment of EFB (shredding, grinding, and soaking) before it is utilized as a feedstock for biogas production is important to increase the biodegradability of EFB. The evaluation of the impact of EFB utilization on biogas production should be investigated to determine the optimum process conditions for bio-gas production from EFB and POME. This research consists of three steps: 1) Optimization of size of EFB and ratio of EFB-POME, 2) Optimization of hydrolysis and acidification retention time, and 3) Optimization of biogas production. The research result shows that co-digestion of EFB and POME increases biogas and methane production. Compared to POME only, co-digestion using POME and EFB (shredded 10%, shredded 15%, crushed 10%, and crushed 15%) is increasing biogas production in batch systems by 54.1%, 54.1%, 45.5%, and 75.2%, respectively. The research result also shows that in a continuous system with HRT for 25 days and similar feedstock, biogas production increased by 43.3%, 41.6%, 35.6%, and 62.6%, respectively, with methane concentrations maintained at about 60%. Co-digestion of EFB-POME with 15% crushed EFB is recommended to be applied in palm oil mills to increase biogas production.","PeriodicalId":15652,"journal":{"name":"Journal of Ecological Engineering","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141231407","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 : 2024-06-01DOI: 10.12911/22998993/187962
Anna Myka-Raduj, J. Bohacz, A. Listosz, Waldemar Raduj, Krzysztof Jóźwiakowski
This study assessed the operational efficiency of a hybrid constructed wetland (CW) in its first year of use. The test facility was put into operation in September 2022 and has since been utilized to treat 0.4 m 3 /d of wastewater discharged from a forester’s lodge located in the Polesie National Park in Poland. The treatment plant consists of a two-chamber primary settling tank integrated with a pumping station, and a system of two beds – a vertical flow (VF) reed bed and a horizontal flow (HF) willow bed. During the research period (October 2022 to December 2023), 14 test runs were performed during which 56 sewage samples were collected for physico-chemical and microbiological assays. The results of these tests were used to determine the pollutant removal efficiency of the CW. The composition of treated wastewater was compared against the current Polish requirements for this type of facilities. The study also included measurements of influent and effluent volumes and the amount of rainwater entering the treatment plant. It was shown that precipitation in each month of the study accounted for between 6–34% of influent volume. The volume of wastewater discharged from the treatment plant during the study period was 11% lower than the volume of incoming wastewater combined with rainwater. It was found that the CW removed an average of over 90% of total suspended solids, BOD 5 , COD, Escherichia coli bacteria and fecal enterococci from wastewater. Slightly lower removal efficiencies were achieved in the case of total nitrogen and total phosphorus (60–74%). Already during the start-up period, the composition of treated wastewater discharged from the CW met the requirements set out in the current Polish legal regulations. The present study shows that hybrid VF-HF constructed wetlands can be recommended for use in protected areas for wastewater treatment and protec - tion of water against eutrophication.
{"title":"Efficiency of Operation a Hybrid Constructed Wetland Located in the Polesie National Park (Poland) During the Start-Up Period","authors":"Anna Myka-Raduj, J. Bohacz, A. Listosz, Waldemar Raduj, Krzysztof Jóźwiakowski","doi":"10.12911/22998993/187962","DOIUrl":"https://doi.org/10.12911/22998993/187962","url":null,"abstract":"This study assessed the operational efficiency of a hybrid constructed wetland (CW) in its first year of use. The test facility was put into operation in September 2022 and has since been utilized to treat 0.4 m 3 /d of wastewater discharged from a forester’s lodge located in the Polesie National Park in Poland. The treatment plant consists of a two-chamber primary settling tank integrated with a pumping station, and a system of two beds – a vertical flow (VF) reed bed and a horizontal flow (HF) willow bed. During the research period (October 2022 to December 2023), 14 test runs were performed during which 56 sewage samples were collected for physico-chemical and microbiological assays. The results of these tests were used to determine the pollutant removal efficiency of the CW. The composition of treated wastewater was compared against the current Polish requirements for this type of facilities. The study also included measurements of influent and effluent volumes and the amount of rainwater entering the treatment plant. It was shown that precipitation in each month of the study accounted for between 6–34% of influent volume. The volume of wastewater discharged from the treatment plant during the study period was 11% lower than the volume of incoming wastewater combined with rainwater. It was found that the CW removed an average of over 90% of total suspended solids, BOD 5 , COD, Escherichia coli bacteria and fecal enterococci from wastewater. Slightly lower removal efficiencies were achieved in the case of total nitrogen and total phosphorus (60–74%). Already during the start-up period, the composition of treated wastewater discharged from the CW met the requirements set out in the current Polish legal regulations. The present study shows that hybrid VF-HF constructed wetlands can be recommended for use in protected areas for wastewater treatment and protec - tion of water against eutrophication.","PeriodicalId":15652,"journal":{"name":"Journal of Ecological Engineering","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141230887","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 : 2024-06-01DOI: 10.12911/22998993/187972
Phuong Thi Lan Dinh, Viet Phan Nguyen, Hoa Thanh Nguyen, Dinh Thi Ngoc Nguyen, Anh Nguyet Pham
Agricultural by-products such as rice husks are very popular in Vietnam, which are often burned in the fields, causing an increase in dust smoke and greenhouse gas (GHG) emissions. To study the effects of different irriga - tion methods, quality of irrigation water and additive biochar from rice husk (BFRH) on leaching nitrate from paddy fields into shallow groundwater and methane (CH 4 ) emissions, we investigated a two-season experiment (2021–2023) under two irrigation methods: water-saving irrigation and flood irrigation with 120 kg N/ha. The results illustrated that seasonal CH 4 emissions and leaching nitrate were affected by irrigation practices and significantly correlated with the quality of irrigation and the amount of BFRH added. To compare of control, the flood irrigation water increased the leaching of GHG and NO 3-into shallow groundwater from 27.3–32.4% and 16.4–31.25%, respectively. Meanwhile, the saving water irrigation reduced CH 4 and leaching of NO 3-into shallow groundwater from 13.3–17.8% and 15.63–18.9%, respectively. Applying biochar with controlling fertilizer reduces CH 4 and NO 3-content in surface field water, contributing to the decreased leaching of NO 3-into groundwater. Reducing 20% fertilizer rate of N (96 kg N/ha) with application biochar of 5% without a change in yield reduces NO 3-content into shallow groundwater from 13.7–14.3%. We conclude that water-saving irrigation combined with biochar from rice husk incorporation simultaneously mitigates CH 4 emissions, improves yield, and reduces leaching nitrate into groundwater, making it a suitable environment-friendly nitrogen management practice for sustainable farming in northern Vietnam.
{"title":"Potential of Irrigation and Biochar on Reduction Methane Emission and Leaching Nitrate into Groundwater","authors":"Phuong Thi Lan Dinh, Viet Phan Nguyen, Hoa Thanh Nguyen, Dinh Thi Ngoc Nguyen, Anh Nguyet Pham","doi":"10.12911/22998993/187972","DOIUrl":"https://doi.org/10.12911/22998993/187972","url":null,"abstract":"Agricultural by-products such as rice husks are very popular in Vietnam, which are often burned in the fields, causing an increase in dust smoke and greenhouse gas (GHG) emissions. To study the effects of different irriga - tion methods, quality of irrigation water and additive biochar from rice husk (BFRH) on leaching nitrate from paddy fields into shallow groundwater and methane (CH 4 ) emissions, we investigated a two-season experiment (2021–2023) under two irrigation methods: water-saving irrigation and flood irrigation with 120 kg N/ha. The results illustrated that seasonal CH 4 emissions and leaching nitrate were affected by irrigation practices and significantly correlated with the quality of irrigation and the amount of BFRH added. To compare of control, the flood irrigation water increased the leaching of GHG and NO 3-into shallow groundwater from 27.3–32.4% and 16.4–31.25%, respectively. Meanwhile, the saving water irrigation reduced CH 4 and leaching of NO 3-into shallow groundwater from 13.3–17.8% and 15.63–18.9%, respectively. Applying biochar with controlling fertilizer reduces CH 4 and NO 3-content in surface field water, contributing to the decreased leaching of NO 3-into groundwater. Reducing 20% fertilizer rate of N (96 kg N/ha) with application biochar of 5% without a change in yield reduces NO 3-content into shallow groundwater from 13.7–14.3%. We conclude that water-saving irrigation combined with biochar from rice husk incorporation simultaneously mitigates CH 4 emissions, improves yield, and reduces leaching nitrate into groundwater, making it a suitable environment-friendly nitrogen management practice for sustainable farming in northern Vietnam.","PeriodicalId":15652,"journal":{"name":"Journal of Ecological Engineering","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141235095","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 : 2024-06-01DOI: 10.12911/22998993/187577
Callista Fabiola Candraningtyas, Nassa Arfiantinosa, H. A. Matin, Mozakkir Azad
PT A is a cement industry that produces slag, portland cement, and composite portland cement. This research aims to examine the environmental impacts of the cement industry by applying the life cycle assessment method. The methods used in this research are divided into goal and scope, life cycle inventory, life cycle impact assessment, and interpretation. This research uses SimaPro software for data processing. In carrying out impact assessments using life cycle assessment, several methods are used such as CML IA Baseline V3.05, Impact 2002+, EPD 2018, and cumulative energy demand. The results show that there are two types of impacts. Primary impacts include global warming, eutrophication, acidification, and stratospheric thinning. Meanwhile, secondary impacts are pho - tochemical oxidation, abiotic depletion of fossils and non-fossils, terrestrial and aquatic ecotoxicity, carcinogenicity, toxicity, water consumption, land use change, and non-renewable energy depletion.
PT A 是一家生产矿渣、硅酸盐水泥和复合硅酸盐水泥的水泥企业。本研究旨在通过应用生命周期评估方法，考察水泥行业对环境的影响。本研究采用的方法分为目标和范围、生命周期清单、生命周期影响评估和解释。本研究使用 SimaPro 软件进行数据处理。在使用生命周期评估法进行影响评估时，使用了 CML IA Baseline V3.05、Impact 2002+、EPD 2018 和累积能源需求等几种方法。结果显示有两类影响。主要影响包括全球变暖、富营养化、酸化和平流层变薄。次要影响包括化学氧化、化石和非化石的非生物损耗、陆生和水生生态毒性、致癌性、毒性、水消耗、土地利用变化和不可再生能源损耗。
{"title":"Environmental Impact Analysis in the Cement Industry with Life Cycle Assessment Method","authors":"Callista Fabiola Candraningtyas, Nassa Arfiantinosa, H. A. Matin, Mozakkir Azad","doi":"10.12911/22998993/187577","DOIUrl":"https://doi.org/10.12911/22998993/187577","url":null,"abstract":"PT A is a cement industry that produces slag, portland cement, and composite portland cement. This research aims to examine the environmental impacts of the cement industry by applying the life cycle assessment method. The methods used in this research are divided into goal and scope, life cycle inventory, life cycle impact assessment, and interpretation. This research uses SimaPro software for data processing. In carrying out impact assessments using life cycle assessment, several methods are used such as CML IA Baseline V3.05, Impact 2002+, EPD 2018, and cumulative energy demand. The results show that there are two types of impacts. Primary impacts include global warming, eutrophication, acidification, and stratospheric thinning. Meanwhile, secondary impacts are pho - tochemical oxidation, abiotic depletion of fossils and non-fossils, terrestrial and aquatic ecotoxicity, carcinogenicity, toxicity, water consumption, land use change, and non-renewable energy depletion.","PeriodicalId":15652,"journal":{"name":"Journal of Ecological Engineering","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141233622","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 : 2024-06-01DOI: 10.12911/22998993/187148
L. Mokif, Zahraa H. Obaid, Sarab A. Juda
In the current study, a novel composite (Fe 3 O 4 @MnO 2 @Al 2 O 3 ) was prepared to remove crystal violet dye and cadmium from aqueous solutions. The coprecipitation method was utilized to synthesize the composite. Batch studies were carried out using a contact period of 0.5–3 hours, an initial crystal violet and cadmium content of 50–200 mg/L, an agitation speed of 50–200 rpm, a pH of 4–12, and a composite dosage of 0.2–1.0 g per 50 mL of contaminated solution. The isotherm and kinetics models were formulated the experimental data. XRD, SEM-EDS, and FTIR analyses were utilized for composite characterization. The results revealed that the removal efficacy of crystal violet dye was 99.311% at 1 g of adsorbent, pH 12, 50 mg/L, 1 hour, and 200 rpm. The removal efficacy for cadmium (Cd) is 99.7296% at 1 g of sorbent mass at pH 6, 50 mg/L, 1 hour, and 200 rpm. The outcomes demonstrated that the Langmuir model could accurately depict the sorption of crystal violet dye onto the composite with R 2 (0.9882) and SSE (0.7084). On the basis of Freundlich, the capacity of the composite to reflect cadmium sorption was assessed by its highest R 2 (0.8947) and lowest SSE (8.5149). The pseudo-second-order model is a more realistic way to explain how cadmium and crystal violet dye sorb onto the composite. The results showed that the composite is effective in eliminating target pollutants, since cadmium has a maximum adsorption capacity of 48.5052 mg/g and crystal violet dye has a capacity of 40.9682 mg/g. Therefore, (Fe 3 O 4 @MnO 2 @Al 2 O 3 ) can be used as efficient sorbent for removing Cd and crystal violet dye from synthetic industrial wastewater.
{"title":"Synthesis of New Composite Adsorbents for Removing Heavy Metals and Dyes from Aqueous Solution","authors":"L. Mokif, Zahraa H. Obaid, Sarab A. Juda","doi":"10.12911/22998993/187148","DOIUrl":"https://doi.org/10.12911/22998993/187148","url":null,"abstract":"In the current study, a novel composite (Fe 3 O 4 @MnO 2 @Al 2 O 3 ) was prepared to remove crystal violet dye and cadmium from aqueous solutions. The coprecipitation method was utilized to synthesize the composite. Batch studies were carried out using a contact period of 0.5–3 hours, an initial crystal violet and cadmium content of 50–200 mg/L, an agitation speed of 50–200 rpm, a pH of 4–12, and a composite dosage of 0.2–1.0 g per 50 mL of contaminated solution. The isotherm and kinetics models were formulated the experimental data. XRD, SEM-EDS, and FTIR analyses were utilized for composite characterization. The results revealed that the removal efficacy of crystal violet dye was 99.311% at 1 g of adsorbent, pH 12, 50 mg/L, 1 hour, and 200 rpm. The removal efficacy for cadmium (Cd) is 99.7296% at 1 g of sorbent mass at pH 6, 50 mg/L, 1 hour, and 200 rpm. The outcomes demonstrated that the Langmuir model could accurately depict the sorption of crystal violet dye onto the composite with R 2 (0.9882) and SSE (0.7084). On the basis of Freundlich, the capacity of the composite to reflect cadmium sorption was assessed by its highest R 2 (0.8947) and lowest SSE (8.5149). The pseudo-second-order model is a more realistic way to explain how cadmium and crystal violet dye sorb onto the composite. The results showed that the composite is effective in eliminating target pollutants, since cadmium has a maximum adsorption capacity of 48.5052 mg/g and crystal violet dye has a capacity of 40.9682 mg/g. Therefore, (Fe 3 O 4 @MnO 2 @Al 2 O 3 ) can be used as efficient sorbent for removing Cd and crystal violet dye from synthetic industrial wastewater.","PeriodicalId":15652,"journal":{"name":"Journal of Ecological Engineering","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141232846","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 : 2024-06-01DOI: 10.12911/22998993/187036
Thieu Thi Phong Thu, Nguyen Thi Loan
Agricultural by-products can be converted into organic fertilizers through thermophilic composting process. In this study, four combinations of different agricultural by-product materials were composted to find a mixing treatment that improves thermophilic composting process and produces good quality compost. Four treatments included M1 (straw, chicken manure, elephant grass), M2 (straw, chicken manure, cabbage leaves), M3 (straw, cow manure, elephant grass) and M4 (straw, cow manure, cabbage leaves). Compost phytotoxicity was tested on Brassica and Spinach seeds through germination tests. Experiment of evaluating the effects of these compost combined with inorganic nitrogen fertilizer on the growth and yield of cucumber was also conducted. Research results indicated that using agricultural by-product composting materials including straw, chicken manure with elephant grass or cabbage leaves gave better temperature behavior, compost quality and volume than others. Composts of the treatments are considered free of toxicity because they all gave a germination of over 80%. Applying 70% composts of M1 or M2 combining with chemical nitrogen fertilizer replaced for 30% of nitrogen in compost to soil significantly increased the growth and yield of cucumber. The agricultural by-products should thus be converted into nutritious compost which is healthy food feeding soil and crops to contribute to closing the food chain in circular agriculture, protecting environment, and developing agriculture production sustainably.
{"title":"Multi-Component Composting of Agricultural By-Products Improves Compost Quality and Effects on the Growth and Yield of Cucumber","authors":"Thieu Thi Phong Thu, Nguyen Thi Loan","doi":"10.12911/22998993/187036","DOIUrl":"https://doi.org/10.12911/22998993/187036","url":null,"abstract":"Agricultural by-products can be converted into organic fertilizers through thermophilic composting process. In this study, four combinations of different agricultural by-product materials were composted to find a mixing treatment that improves thermophilic composting process and produces good quality compost. Four treatments included M1 (straw, chicken manure, elephant grass), M2 (straw, chicken manure, cabbage leaves), M3 (straw, cow manure, elephant grass) and M4 (straw, cow manure, cabbage leaves). Compost phytotoxicity was tested on Brassica and Spinach seeds through germination tests. Experiment of evaluating the effects of these compost combined with inorganic nitrogen fertilizer on the growth and yield of cucumber was also conducted. Research results indicated that using agricultural by-product composting materials including straw, chicken manure with elephant grass or cabbage leaves gave better temperature behavior, compost quality and volume than others. Composts of the treatments are considered free of toxicity because they all gave a germination of over 80%. Applying 70% composts of M1 or M2 combining with chemical nitrogen fertilizer replaced for 30% of nitrogen in compost to soil significantly increased the growth and yield of cucumber. The agricultural by-products should thus be converted into nutritious compost which is healthy food feeding soil and crops to contribute to closing the food chain in circular agriculture, protecting environment, and developing agriculture production sustainably.","PeriodicalId":15652,"journal":{"name":"Journal of Ecological Engineering","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141233827","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 : 2024-06-01DOI: 10.12911/22998993/186822
Оleg Proskurnin, N. Tsapko, Тaras Ivashchenko, Sergey Vasilenko, Karina Belokon, Nikolay Zakharchenko, Anatolii Yurchenko, Natalia Teliura
The article strives to determine the allowable content of nutrients in the wastewater that is being discharged into a reservoir, with the end goal of minimizing the risk of eutrophication. It was noted that the methodology currently used in Ukraine and most European countries to control pollutant discharge in wastewater is designed to simply not exceed the permissible pollution level in natural water based on sanitary indicators, which does not guarantee the absence of the eutrophication risk to the water bodies. The article describes a developed method for determining the allowable composition of wastewater based on biogenic indicators. The proposed method takes into account the consecutive transformation of nutrients, the probabilistic nature of the factors that determine the quality of water in water bodies, as well as the cost of purifying wastewater from various pollutants. The problem was considered for the case of wastewater discharge into a reservoir through a watercourse. This research is a practical scientific basis for further improving the methodology for standardization of the wastewater composition in order to protect water bodies from eutrophication.
{"title":"Standardizing the Wastewater Composition in Order to Minimize the Eutrophication Risk for the Reservoir","authors":"Оleg Proskurnin, N. Tsapko, Тaras Ivashchenko, Sergey Vasilenko, Karina Belokon, Nikolay Zakharchenko, Anatolii Yurchenko, Natalia Teliura","doi":"10.12911/22998993/186822","DOIUrl":"https://doi.org/10.12911/22998993/186822","url":null,"abstract":"The article strives to determine the allowable content of nutrients in the wastewater that is being discharged into a reservoir, with the end goal of minimizing the risk of eutrophication. It was noted that the methodology currently used in Ukraine and most European countries to control pollutant discharge in wastewater is designed to simply not exceed the permissible pollution level in natural water based on sanitary indicators, which does not guarantee the absence of the eutrophication risk to the water bodies. The article describes a developed method for determining the allowable composition of wastewater based on biogenic indicators. The proposed method takes into account the consecutive transformation of nutrients, the probabilistic nature of the factors that determine the quality of water in water bodies, as well as the cost of purifying wastewater from various pollutants. The problem was considered for the case of wastewater discharge into a reservoir through a watercourse. This research is a practical scientific basis for further improving the methodology for standardization of the wastewater composition in order to protect water bodies from eutrophication.","PeriodicalId":15652,"journal":{"name":"Journal of Ecological Engineering","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141234533","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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