Pub Date : 2020-01-01DOI: 10.37421/jreac.2020.7.263
T. Agacayak, Mohamed T. Ahmed
In this study, optimization and modeling of leaching parameters affecting nickel dissolution from lateritic ore in EskiA…Ÿehir (MihalA„±ccA„±k-Yunusemre) were investigated using Box-Behnken design. Stirring speed (100-400 rpm, temperature (40-80°C), acid concentration (0.1-2 M) and dissolution time (30-180 min) were selected as experimental design parameters. 27 experiments were carried out by Box-Behnken experimental design in Minitab 16.0 program. After leaching experiments, the highest Ni dissolution percentages were obtained as 87.85%. The effective parameters and their interactions in nickel dissolution are described with a mathematical model. The results obtained from the experiments were subjected to ANOVA and multiple regression analysis. The R2 value of the model for nickel dissolution was calculated as 0.980. This showed that the predicted values are in good agreement with the observed values. In addition, three-dimensional response surface and contour graphs of the parameters affecting nickel dissolution efficiency were created and the results were examined.
{"title":"Optimization and Modeling of Leaching Parameters Affecting Nickel Dissolution from Lateritic Ore in Eskisehir (Mihaliccik-Yunusemre) Using Box-Behnken Experimental Design","authors":"T. Agacayak, Mohamed T. Ahmed","doi":"10.37421/jreac.2020.7.263","DOIUrl":"https://doi.org/10.37421/jreac.2020.7.263","url":null,"abstract":"In this study, optimization and modeling of leaching parameters affecting nickel dissolution from lateritic ore in EskiA…Ÿehir (MihalA„±ccA„±k-Yunusemre) were investigated using Box-Behnken design. Stirring speed (100-400 rpm, temperature (40-80°C), acid concentration (0.1-2 M) and dissolution time (30-180 min) were selected as experimental design parameters. 27 experiments were carried out by Box-Behnken experimental design in Minitab 16.0 program. After leaching experiments, the highest Ni dissolution percentages were obtained as 87.85%. The effective parameters and their interactions in nickel dissolution are described with a mathematical model. The results obtained from the experiments were subjected to ANOVA and multiple regression analysis. The R2 value of the model for nickel dissolution was calculated as 0.980. This showed that the predicted values are in good agreement with the observed values. In addition, three-dimensional response surface and contour graphs of the parameters affecting nickel dissolution efficiency were created and the results were examined.","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"286 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80274867","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 : 2020-01-01DOI: 10.37421/2380-2391.2020.7.265
Itodo Au, R. Shaato, Wuana Ra, E. Yerima
This study evaluates the PAHs composition in agricultural soils around Mechanic village, Wukari using standard procedures by means of GC-MS. The possible source of the PAHs in the soil was deduced, using the diagnostic ratio analysis for PAH origin. Risk assessment was based on the incremental life cancer risk of PAHs proposed by Provisional Guidance for Quantitative Risk Assessment of the United States Environmental Protection Agency. Effect of phyto-remediation using Zea mays inter-planted with Striga hermonthica (SMV-MS), Zea mays alone (SMV-M), Zea mays inter-planted with Striga hermonthica alongside the application of fertilizer (SMV-MSF) and Zea mays alone alongside fertilizer application (SMV-MF). The result reveals that the PAHs composition based on ring prevalence in agricultural soils around Mechanic village Wukari was in the order Σ5 >Σ6 >Σ4 >Σ3 >Σ2 ring. Dibenz [a,h] anthracene 4.52 μg/kg (39.09%) has the highest percentage abundance but was less than the 100 μg/kg and 700 μg/kg Canadian soil quality guideline for agricultural and commercial layout while acenaphthene 0.111 μg/kg (0.90%) was the least abundant. The source of the PAHs in the soil was basically pyrogenic based on the diagnostic ratio analysis while phytoremediation of the soil using Zea mays inter-planted with Striga hermonthica significantly reduce the PAHs content of the soil.
{"title":"Effect of Phytoremediation on PAHs Levels of Agricultural Soil around Mechanic Village Wukari, Nigeria","authors":"Itodo Au, R. Shaato, Wuana Ra, E. Yerima","doi":"10.37421/2380-2391.2020.7.265","DOIUrl":"https://doi.org/10.37421/2380-2391.2020.7.265","url":null,"abstract":"This study evaluates the PAHs composition in agricultural soils around Mechanic village, Wukari using standard procedures by means of GC-MS. The possible source of the PAHs in the soil was deduced, using the diagnostic ratio analysis for PAH origin. Risk assessment was based on the incremental life cancer risk of PAHs proposed by Provisional Guidance for Quantitative Risk Assessment of the United States Environmental Protection Agency. Effect of phyto-remediation using Zea mays inter-planted with Striga hermonthica (SMV-MS), Zea mays alone (SMV-M), Zea mays inter-planted with Striga hermonthica alongside the application of fertilizer (SMV-MSF) and Zea mays alone alongside fertilizer application (SMV-MF). The result reveals that the PAHs composition based on ring prevalence in agricultural soils around Mechanic village Wukari was in the order Σ5 >Σ6 >Σ4 >Σ3 >Σ2 ring. Dibenz [a,h] anthracene 4.52 μg/kg (39.09%) has the highest percentage abundance but was less than the 100 μg/kg and 700 μg/kg Canadian soil quality guideline for agricultural and commercial layout while acenaphthene 0.111 μg/kg (0.90%) was the least abundant. The source of the PAHs in the soil was basically pyrogenic based on the diagnostic ratio analysis while phytoremediation of the soil using Zea mays inter-planted with Striga hermonthica significantly reduce the PAHs content of the soil.","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"56 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86874949","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 : 2020-01-01DOI: 10.37421/2380-2391.2020.7.284
C. Mounica
Environmental change is currently essentially difficult to overlook. The temperature arrived at a record-breaking 90 degrees in Anchorage this late spring and an uncommon 108 degrees in Paris
{"title":"Editorial Note on Climate Change","authors":"C. Mounica","doi":"10.37421/2380-2391.2020.7.284","DOIUrl":"https://doi.org/10.37421/2380-2391.2020.7.284","url":null,"abstract":"Environmental change is currently essentially difficult to overlook. The temperature arrived at a record-breaking 90 degrees in Anchorage this late spring and an uncommon 108 degrees in Paris","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"4 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86374718","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 : 2020-01-01DOI: 10.37421/2380-2391.2020.7.286
C. Mounica
The unfurling COVID sickness 2019 (COVID-19) pandemic and the new episodes of serious intense respiratory disorder (SARS), center east respiratory condition (MERS), and exceptionally pathogenic flu, for example, H5N1 and H1N1, just as rising anti-infection obstruction, show that we live in a period of recently arising and reappearing irresistible illnesses that influence billions around the world.
{"title":"Editorial Note on Fluid Dynamics of Disease Transmission","authors":"C. Mounica","doi":"10.37421/2380-2391.2020.7.286","DOIUrl":"https://doi.org/10.37421/2380-2391.2020.7.286","url":null,"abstract":"The unfurling COVID sickness 2019 (COVID-19) pandemic and the new episodes of serious intense respiratory disorder (SARS), center east respiratory condition (MERS), and exceptionally pathogenic flu, for example, H5N1 and H1N1, just as rising anti-infection obstruction, show that we live in a period of recently arising and reappearing irresistible illnesses that influence billions around the world.","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"2 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85503231","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 : 2020-01-01DOI: 10.37421/2380-2391.2020.7.268
Mounica Chinthala
When choosing a journal to submit your article to, it’s important to make sure it’s the right fit. To help with this, every journal on Environmental Analytical Chemistry Online has an aims and scope statement. This is a powerful resource that you can use to choose the best journal for your research.
{"title":"How to Find a Journal’s Aims and Scope for Your Research","authors":"Mounica Chinthala","doi":"10.37421/2380-2391.2020.7.268","DOIUrl":"https://doi.org/10.37421/2380-2391.2020.7.268","url":null,"abstract":"When choosing a journal to submit your article to, it’s important to make sure it’s the right fit. To help with this, every journal on Environmental Analytical Chemistry Online has an aims and scope statement. This is a powerful resource that you can use to choose the best journal for your research.","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"12 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83538485","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 : 2020-01-01DOI: 10.37421/2380-2391.2020.7.277
E. Ibrahim, Sa John, S. GushitJohn, Dalen Mb, Gube-Ibrahim Ma
Investigation into occurrence and Remediation of Polychlorinated biphenyls in soil from Jos, Plateau State Nigeria was carried out. The polychlorinated biphenyls in the soil was extracted with 40ml hexane-acetone mixture (1:1) in ultrasonic bath for 30 minutes and cleaned with column chromatography packed with silica gel. The polychlorinated biphenyls were quantified using Agilent 6975 Gas chromatography Mass Spectrophotometer with the following results: PCB 18 (0.71), PCB 20 (0.37), PCB 28 (0.38), PCB 29 (0.38), PCB 44 (0.42), PCB 52 (0.66), PCB 101 (0.61), PCB 105 (0.17), PCB 137 (0.64), PCB 142 (0.33), PCB 153 (0.42), PCB 170 (0.13) and PCB 180 (0.21) all in mg/kg. Remediation with Moringa seed results in the followings; PCB 20 (0.28), PCB 28 (0.28), PCB 29 (0.28), PCB 52 (0.30), PCB 101 (0.18), PCB 143 (0.91) while the other congeners were completely removed. The Moringa seed powder results completely removed the PCBs sake PCB 44. The effectiveness of the powder as compared with the seed in the removal of the PCBs might be attributed to the increased surface area of the seed powder providing for better interaction with the contaminated soil. Whereas the results from the use of activated carbon only removed PCB 105 completely and reduced the concentrations of other congeners as follows: PCB 18 (0.04), PCB 20 (0.011), PCB 28 (0.019), PCB 29 (0.019), PCB 44 (0.021), PCB 52 (0.33), PCB 101 (0.031), PCB137 (0.032), PCB 142 (0.017), PCB 153 (0.021), PCB 170 (0.007) and PCB 180 (0.011) all in mg/kg. The result suggests that Moringa seed powder could possibly serve as an excellent means of remediation for Polychlorinated biphenyls in contaminated soil.
{"title":"Occurrence and Remediation of Polychlorinated Biphenyls in Soil from Jos, Plateau State, Nigeria","authors":"E. Ibrahim, Sa John, S. GushitJohn, Dalen Mb, Gube-Ibrahim Ma","doi":"10.37421/2380-2391.2020.7.277","DOIUrl":"https://doi.org/10.37421/2380-2391.2020.7.277","url":null,"abstract":"Investigation into occurrence and Remediation of Polychlorinated biphenyls in soil from Jos, Plateau State Nigeria was carried out. The polychlorinated biphenyls in the soil was extracted with 40ml hexane-acetone mixture (1:1) in ultrasonic bath for 30 minutes and cleaned with column chromatography packed with silica gel. The polychlorinated biphenyls were quantified using Agilent 6975 Gas chromatography Mass Spectrophotometer with the following results: PCB 18 (0.71), PCB 20 (0.37), PCB 28 (0.38), PCB 29 (0.38), PCB 44 (0.42), PCB 52 (0.66), PCB 101 (0.61), PCB 105 (0.17), PCB 137 (0.64), PCB 142 (0.33), PCB 153 (0.42), PCB 170 (0.13) and PCB 180 (0.21) all in mg/kg. Remediation with Moringa seed results in the followings; PCB 20 (0.28), PCB 28 (0.28), PCB 29 (0.28), PCB 52 (0.30), PCB 101 (0.18), PCB 143 (0.91) while the other congeners were completely removed. The Moringa seed powder results completely removed the PCBs sake PCB 44. The effectiveness of the powder as compared with the seed in the removal of the PCBs might be attributed to the increased surface area of the seed powder providing for better interaction with the contaminated soil. Whereas the results from the use of activated carbon only removed PCB 105 completely and reduced the concentrations of other congeners as follows: PCB 18 (0.04), PCB 20 (0.011), PCB 28 (0.019), PCB 29 (0.019), PCB 44 (0.021), PCB 52 (0.33), PCB 101 (0.031), PCB137 (0.032), PCB 142 (0.017), PCB 153 (0.021), PCB 170 (0.007) and PCB 180 (0.011) all in mg/kg. The result suggests that Moringa seed powder could possibly serve as an excellent means of remediation for Polychlorinated biphenyls in contaminated soil.","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"77 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88231980","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 : 2020-01-01DOI: 10.37421/2380-2391.2020.7.274
C. Mounica
Environmental pollution is arriving at stressing extents around the world. Urbanization and industrialization alongside economic development have led to increase in energy consumption and waste discharges.
{"title":"Editorial Note on Environmental Pollution","authors":"C. Mounica","doi":"10.37421/2380-2391.2020.7.274","DOIUrl":"https://doi.org/10.37421/2380-2391.2020.7.274","url":null,"abstract":"Environmental pollution is arriving at stressing extents around the world. Urbanization and industrialization alongside economic development have led to increase in energy consumption and waste discharges.","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"30 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77689178","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 : 2020-01-01DOI: 10.37421/2380-2391.2020.7.275
C. Mounica
{"title":"Editorial Note on Environmental Organic Chemistry: How Might We Avoid Regrettable Substitution","authors":"C. Mounica","doi":"10.37421/2380-2391.2020.7.275","DOIUrl":"https://doi.org/10.37421/2380-2391.2020.7.275","url":null,"abstract":"","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"1937 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91134876","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}
Koga Yuki, Ide Kaito, Matsumoto Misato, Higuchi Taiki, Ichiba Masayoshi, Ueno Daisuke
Oil spill accident from steel mill was caused by flood in August 2019 in Saga Prefecture, Japan. Since “ oil odor prob-lem ” was happened in disaster area, the source estimation of oil odor was conducted using sensory evaluation and Gas Chromatography-Olfactometry (GC-O). By the sensory evaluation, the odor in disaster area was assigned as “ odor of oil and sewage ” . To know in detail of the oil odor, environmental samples (oil absorption sheets) were collected and sensory compared with several fuel oils. As the result of evaluation, oil odor in 7 days after accident consisted of diesel oil (with / or kerosene) instead of spilled oil from steel mill. This result suggested that those fuel oils were also spilled from various sources (heating fuel for house and agriculture) around this disaster are during this flood. On the other hand, the oil absorption sheets in 12 days after accident did not showed odor of those fuel oils, and it showed weak odor of spilled oil from steel mill. It could be due to that these fuel oils spilled were evaporated within a few days under the summer weather, but spilled oil from steel mill which had heavier property was kept in environment.
{"title":"Source Estimation of Oil Spill Accident in Flood Situation using Gas Chromatography Olfactometry (GC-O)","authors":"Koga Yuki, Ide Kaito, Matsumoto Misato, Higuchi Taiki, Ichiba Masayoshi, Ueno Daisuke","doi":"10.5985/jec.30.29","DOIUrl":"https://doi.org/10.5985/jec.30.29","url":null,"abstract":"Oil spill accident from steel mill was caused by flood in August 2019 in Saga Prefecture, Japan. Since “ oil odor prob-lem ” was happened in disaster area, the source estimation of oil odor was conducted using sensory evaluation and Gas Chromatography-Olfactometry (GC-O). By the sensory evaluation, the odor in disaster area was assigned as “ odor of oil and sewage ” . To know in detail of the oil odor, environmental samples (oil absorption sheets) were collected and sensory compared with several fuel oils. As the result of evaluation, oil odor in 7 days after accident consisted of diesel oil (with / or kerosene) instead of spilled oil from steel mill. This result suggested that those fuel oils were also spilled from various sources (heating fuel for house and agriculture) around this disaster are during this flood. On the other hand, the oil absorption sheets in 12 days after accident did not showed odor of those fuel oils, and it showed weak odor of spilled oil from steel mill. It could be due to that these fuel oils spilled were evaporated within a few days under the summer weather, but spilled oil from steel mill which had heavier property was kept in environment.","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74627271","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 : 2020-01-01DOI: 10.37421/2380-2391.2020.7.272
Shihori Tanabe
The importance of environmental chemistry has been increasing in the era of industrial advancement. It is also one of the critical issues to consider the chemical compounds and nano-particle chemistry in the environment. The current coronavirus disease 2019 (COVID-19) situation in all over the world has facilitated the development of anti-viral drugs
{"title":"The Therapeutic Development for COVID-19","authors":"Shihori Tanabe","doi":"10.37421/2380-2391.2020.7.272","DOIUrl":"https://doi.org/10.37421/2380-2391.2020.7.272","url":null,"abstract":"The importance of environmental chemistry has been increasing in the era of industrial advancement. It is also one of the critical issues to consider the chemical compounds and nano-particle chemistry in the environment. The current coronavirus disease 2019 (COVID-19) situation in all over the world has facilitated the development of anti-viral drugs","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"1 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83169440","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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