Spent caustic is a used industrial caustic whose chemical content puts it in the special waste category. The disposal of this waste and the production of value-added products from it has attracted the attention of researchers not only to solve environmental problems but also to take advantage of its byproducts. This research has experimentally proved the transferred thermal plasma technology as a practical method feasible for the disposal of spent caustic. In this study, the applied voltage, electrical current, and feed rate are variable parameters, and others are kept constant. GC analysis showed H2 as the main product, which is environmentally beneficial. The percentage of hydrogen production of approximately 74% is a promising result, considering the difficulty of achieving such a high percentage of hydrogen.
{"title":"Plasma pyrolysis feasibility study of Spent Caustic waste to hydrogen production","authors":"Rasoul Aghayee, Mohammadreza Khani, Farzaneh Ostovarpour, Mohammad Sadegh Abbassi Shanbehbazari, Mojtaba Shafiei, Mahtab Gharibi, Babak Mohammadhosseini, Babak Shokri","doi":"10.1007/s40201-023-00886-7","DOIUrl":"10.1007/s40201-023-00886-7","url":null,"abstract":"<div><p>Spent caustic is a used industrial caustic whose chemical content puts it in the special waste category. The disposal of this waste and the production of value-added products from it has attracted the attention of researchers not only to solve environmental problems but also to take advantage of its byproducts. This research has experimentally proved the transferred thermal plasma technology as a practical method feasible for the disposal of spent caustic. In this study, the applied voltage, electrical current, and feed rate are variable parameters, and others are kept constant. GC analysis showed H<sub>2</sub> as the main product, which is environmentally beneficial. The percentage of hydrogen production of approximately 74% is a promising result, considering the difficulty of achieving such a high percentage of hydrogen.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"22 1","pages":"197 - 208"},"PeriodicalIF":3.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138539074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-28DOI: 10.1007/s40201-023-00889-4
Fatemeh Fatemi, Mahmood Alizadeh Sani, Seyyed Mohammad Ali Noori, Mohammad Hashemi
Background
Today, antibiotics are widely used for treatment and feed additives to enhance livestock growth. Antibiotic residues may be found in food of animal origin for various reasons, including ignoring the withdrawal period after treatment, overuse for animals, and contamination of feed with treated animals in animal products. Among animal products, dairy products have a special place in the human diet, and antibiotic residues in them have caused a great deal of concern among consumers.
Objective
This systematic review and meta-analysis aimed to evaluate and compare studies conducted in Iran on antibiotic residues in dairy products during 2000–2022.
Methods
In this review, 52 eligible studies were collected by searching the Scientific Information Database (SID), Magiran, Google Scholar, Science-Direct, Scopus, and PubMed using the English or Persian keywords such as an antibiotic or antimicrobial residue, Beta-lactam residue, Tetracycline residue, Sulfonamide residue, Chloramphenicol residue, Aminoglycosides residue, Macrolide residue, Quinolones residue, Milk, Raw milk, Pasteurized milk, UHT milk, Powder milk, Cheese, Yogurt, Butter, Cream, Doogh, Kashk, Ice cream, and Iran.
Results
According to the reviewed studies, the total prevalence of antibiotic residues in dairy products was 29% (95% CI: 15–43%). Among the seven evaluated antibiotic groups, most studies have been conducted on tetracycline, beta-lactam, and sulfonamide groups, with 16, 10, and 7 respectively, and the highest level of contamination with 663 ± 1540 μg/l is related to tetracycline. Most studies on antibiotic dairy product residues in Iran with 12, 11, and 8 studies are associated with East Azarbaijan province, then Tehran and Khorasan Razavi respectively, and no study has been conducted in 11 provinces of the country. According to the studies, Gilan, Qazvin and Razavi Khorasan provinces had the highest amount of antibiotic residue in milk with an average value of 56.415 ± 33.354, 45.955 ± 4.179 and 45.928 ± 33.027, respectively. Most of the methods used in the studies to measure antibiotic residues in milk were the Copan test kit and the HPLC method, which were used in 19 and 14 studies, respectively.
Conclusions
Studies have shown that the prevalence of antibiotic residue in dairy products in Iran is high, so applying an effective strategy and developing the necessary standards in this field to control milk quality is a public health necessity. The findings of this study show that further evaluation of fermented dairy products, especially non-fermented ones such as butter and cream, is needed to prevent adverse health reactions.
今天,抗生素被广泛用于治疗和饲料添加剂,以促进牲畜生长。动物源性食品中可能存在抗生素残留,原因多种多样,包括忽视治疗后的停药期、对动物过度使用、动物产品中使用治疗动物的饲料受到污染等。在动物产品中,乳制品在人类饮食中占有特殊的地位,其中的抗生素残留引起了消费者的极大关注。本系统综述和荟萃分析旨在评估和比较2000-2022年期间在伊朗进行的乳制品抗生素残留研究。方法采用英文或波斯语关键词:抗生素或抗菌药物残留、β -内酰胺类残留、四环素类残留、磺胺类残留、氯霉素类残留、氨基糖苷类残留、大环内酯类残留、喹诺酮类残留、牛奶、生奶、巴氏杀菌奶、UHT奶、奶粉、奶酪、酸奶、黄油、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂、乳脂。奶油,面团,Kashk,冰淇淋和伊朗。结果根据回顾的研究,乳制品中抗生素残留的总流行率为29% (95% CI: 15-43%)。在7个被评价的抗生素组中,对四环素、β -内酰胺和磺胺类的研究最多,分别有16、10和7个,最高污染水平为663±1540 μg/l,与四环素有关。伊朗大多数关于抗生素乳制品残留的研究有12项、11项和8项研究分别与东Azarbaijan省有关,然后分别是德黑兰和Khorasan Razavi,在该国11个省没有进行研究。结果显示,吉兰省、加兹温省和拉扎维省的牛奶抗生素残留量最高,平均值分别为56.415±33.354、45.955±4.179和45.928±33.027。研究中使用最多的方法是Copan test kit和HPLC法,分别有19项和14项研究使用了Copan test kit和HPLC法。结论研究表明,伊朗乳制品中抗生素残留的发生率很高,因此在这一领域采取有效的策略和制定必要的标准来控制牛奶质量是公共卫生的需要。这项研究的结果表明,需要进一步评估发酵乳制品,特别是非发酵乳制品,如黄油和奶油,以防止不良的健康反应。
{"title":"Status of antibiotic residues in milk and dairy products of Iran: a systematic review and meta-analysis","authors":"Fatemeh Fatemi, Mahmood Alizadeh Sani, Seyyed Mohammad Ali Noori, Mohammad Hashemi","doi":"10.1007/s40201-023-00889-4","DOIUrl":"10.1007/s40201-023-00889-4","url":null,"abstract":"<div><h3>Background</h3><p>Today, antibiotics are widely used for treatment and feed additives to enhance livestock growth. Antibiotic residues may be found in food of animal origin for various reasons, including ignoring the withdrawal period after treatment, overuse for animals, and contamination of feed with treated animals in animal products. Among animal products, dairy products have a special place in the human diet, and antibiotic residues in them have caused a great deal of concern among consumers.</p><h3>Objective</h3><p>This systematic review and meta-analysis aimed to evaluate and compare studies conducted in Iran on antibiotic residues in dairy products during 2000–2022.</p><h3>Methods</h3><p>In this review, 52 eligible studies were collected by searching the Scientific Information Database (SID), Magiran, Google Scholar, Science-Direct, Scopus, and PubMed using the English or Persian keywords such as an antibiotic or antimicrobial residue, Beta-lactam residue, Tetracycline residue, Sulfonamide residue, Chloramphenicol residue, Aminoglycosides residue, Macrolide residue, Quinolones residue, Milk, Raw milk, Pasteurized milk, UHT milk, Powder milk, Cheese, Yogurt, Butter, Cream, Doogh, Kashk, Ice cream, and Iran.</p><h3>Results</h3><p>According to the reviewed studies, the total prevalence of antibiotic residues in dairy products was 29% (95% CI: 15–43%). Among the seven evaluated antibiotic groups, most studies have been conducted on tetracycline, beta-lactam, and sulfonamide groups, with 16, 10, and 7 respectively, and the highest level of contamination with 663 ± 1540 μg/l is related to tetracycline. Most studies on antibiotic dairy product residues in Iran with 12, 11, and 8 studies are associated with East Azarbaijan province, then Tehran and Khorasan Razavi respectively, and no study has been conducted in 11 provinces of the country. According to the studies, Gilan, Qazvin and Razavi Khorasan provinces had the highest amount of antibiotic residue in milk with an average value of 56.415 ± 33.354, 45.955 ± 4.179 and 45.928 ± 33.027, respectively. Most of the methods used in the studies to measure antibiotic residues in milk were the Copan test kit and the HPLC method, which were used in 19 and 14 studies, respectively.</p><h3>Conclusions</h3><p>Studies have shown that the prevalence of antibiotic residue in dairy products in Iran is high, so applying an effective strategy and developing the necessary standards in this field to control milk quality is a public health necessity. The findings of this study show that further evaluation of fermented dairy products, especially non-fermented ones such as butter and cream, is needed to prevent adverse health reactions.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"22 1","pages":"31 - 51"},"PeriodicalIF":3.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00889-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138539082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-23DOI: 10.1007/s40201-023-00884-9
Deepti Sharma, Jai Prakash Mishra, Veena Dhayal
In-situ modification of cellulose fibers with titania nanoparticles (TiO2 NPs) (TiO2 NPs-cellulose) was carried out via the sol–gel process using titania sol and fibers of cellulose. Cellulose fibers were extracted from wheat straw, an agricultural waste material, whereas titania sol was prepared from titanium(IV) acetoximate, [Ti{ONC(CH3)2}4]. The synthesized TiO2 NPs-cellulose composite was characterized by FT-IR, SEM–EDX, and XRD analyses. The obtained results exposed that TiO2 NPs were homogeneously dispersed over the surface of cellulose fibers. A study was conducted to compare the photocatalytic activities of TiO2 NPs-cellulose composite and TiO2 NPs towards the degradation of methylene blue and methyl orange dyes under sunlight, and it was observed that the photo-degradation of methylene blue (99.99%) and methyl orange (80.73%) within 160 min is higher in the presence of TiO2 NPs-cellulose composite than TiO2 NPs. The adsorption capabilities of TiO2 NPs-cellulose composite towards Pb2+, Cd2+, and Cr3+ toxic metal ions were also examined, and it was found 44.73 mg. g−1 (89.46%), 38.82 mg. g−1 (77.65%), and 4.42 mg. g−1 (8.85%), respectively. Removal of pollutants from textile industrial effluent were also investigated using TiO2 NPs-cellulose composite under sun light. The results obtained were very promising which shows potential of TiO2 NPs-cellulose composite as an efficient photocatalyst and absorbent for real time applications.
{"title":"Modification of cellulose with TiO2 nanoparticles: Potential solar driven photocatalyst and adsorbent","authors":"Deepti Sharma, Jai Prakash Mishra, Veena Dhayal","doi":"10.1007/s40201-023-00884-9","DOIUrl":"10.1007/s40201-023-00884-9","url":null,"abstract":"<div><p><i>In-situ</i> modification of cellulose fibers with titania nanoparticles (TiO<sub>2</sub> NPs) (TiO<sub>2</sub> NPs-cellulose) was carried out via the sol–gel process using titania sol and fibers of cellulose. Cellulose fibers were extracted from wheat straw, an agricultural waste material, whereas titania sol was prepared from titanium(IV) acetoximate, [Ti{ONC(CH<sub>3</sub>)<sub>2</sub>}<sub>4</sub>]. The synthesized TiO<sub>2</sub> NPs-cellulose composite was characterized by FT-IR, SEM–EDX, and XRD analyses. The obtained results exposed that TiO<sub>2</sub> NPs were homogeneously dispersed over the surface of cellulose fibers. A study was conducted to compare the photocatalytic activities of TiO<sub>2</sub> NPs-cellulose composite and TiO<sub>2</sub> NPs towards the degradation of methylene blue and methyl orange dyes under sunlight, and it was observed that the photo-degradation of methylene blue (99.99%) and methyl orange (80.73%) within 160 min is higher in the presence of TiO<sub>2</sub> NPs-cellulose composite than TiO<sub>2</sub> NPs. The adsorption capabilities of TiO<sub>2</sub> NPs-cellulose composite towards Pb<sup>2+</sup>, Cd<sup>2+</sup>, and Cr<sup>3+</sup> toxic metal ions were also examined, and it was found 44.73 mg. g<sup>−1</sup> (89.46%), 38.82 mg. g<sup>−1</sup> (77.65%), and 4.42 mg. g<sup>−1</sup> (8.85%), respectively. Removal of pollutants from textile industrial effluent were also investigated using TiO<sub>2</sub> NPs-cellulose composite under sun light. The results obtained were very promising which shows potential of TiO<sub>2</sub> NPs-cellulose composite as an efficient photocatalyst and absorbent for real time applications.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"22 1","pages":"167 - 178"},"PeriodicalIF":3.0,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138539084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The presence of toxic heavy metals (HMs) in agricultural crops can be considered as a noteworthy threat for consumers. The aim of this study was to assess the content of HMs (Pb, As, Cr, Cd, Co, Hg, and Ag) and their potential health risk in summer crops and vegetables (watermelon, cantaloupe, cucumber, melon, tomato, onion, potato, raw and stewed vegetables) in Ilam province, Iran.
Methods
Totally, 31 crop samples were collected from local farms during the 2019 harvest season and the elements content were evaluated using inductively coupled plasma-mass spectrometry (ICP-MS). The non-carcinogenic health risk of HMs to the adults and children was estimated by Monte Carlo simulation method and target hazard quotients (THQs).
Results
In general, the results showed that the concentration of Cr in the studied agricultural crops was higher than other HMs. As well as, the carcinogenic risk (CR) obtained for adults and children were more than the acceptable range for As. Also, CR for As in raw vegetable was the most (8.19E-1) and violated the threshold risk limit. The total carcinogenic risk of HMs in children was higher than that in adults.
Conclusion
These results suggest that the agricultural crops were not safe for human consumption with potential risks associated. Due to the possible health effects of such products consumption, proper action should be taken to avoid chronic exposure, prevention of further pollution and consequent adverse health implications.
{"title":"Human health risk assessment of toxic heavy metals in summer crops and vegetables: a study in Ilam Province, Iran","authors":"Ali Amarloei, Seyed Abbas Mirzaei, Zahra Noorimotlagh, Shahrokh Nazmara, Heshmatollah Nourmoradi, Neamatollah Jaafarzadeh Haghighi Fard, Mohsen Heidari, Fazel Mohammadi-Moghadam, Sajad Mazloomi","doi":"10.1007/s40201-023-00881-y","DOIUrl":"10.1007/s40201-023-00881-y","url":null,"abstract":"<div><h3>Purpose</h3><p>The presence of toxic heavy metals (HMs) in agricultural crops can be considered as a noteworthy threat for consumers. The aim of this study was to assess the content of HMs (Pb, As, Cr, Cd, Co, Hg, and Ag) and their potential health risk in summer crops and vegetables (watermelon, cantaloupe, cucumber, melon, tomato, onion, potato, raw and stewed vegetables) in Ilam province, Iran.</p><h3>Methods</h3><p>Totally, 31 crop samples were collected from local farms during the 2019 harvest season and the elements content were evaluated using inductively coupled plasma-mass spectrometry (ICP-MS). The non-carcinogenic health risk of HMs to the adults and children was estimated by Monte Carlo simulation method and target hazard quotients (THQs).</p><h3>Results</h3><p>In general, the results showed that the concentration of Cr in the studied agricultural crops was higher than other HMs. As well as, the carcinogenic risk (CR) obtained for adults and children were more than the acceptable range for As. Also, CR for As in raw vegetable was the most (8.19E-1) and violated the threshold risk limit. The total carcinogenic risk of HMs in children was higher than that in adults.</p><h3>Conclusion</h3><p>These results suggest that the agricultural crops were not safe for human consumption with potential risks associated. Due to the possible health effects of such products consumption, proper action should be taken to avoid chronic exposure, prevention of further pollution and consequent adverse health implications.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"22 1","pages":"139 - 148"},"PeriodicalIF":3.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135272304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-26DOI: 10.1007/s40201-023-00882-x
John Godwin, Jacques Romain Njimou, Nasalam Abdus-Salam, Haleemat Iyabode Adegoke, Prasanna Kumar Panda, Bankim Chandra Tripathy, Sanda Andrada Maicaneanu
Amongst the various water pollutants, heavy metal ions require special attention because of their toxic nature and effects on humans and the environment. Preserving natural resources will have positive impacts on living conditions by reducing diseases and water treatment by nanotechnology is effective in solving this problem owing to the properties of nanomaterials. In this study, a goethite nanoparticle was prepared by hydrothermal method, while ZnO/goethite nanocomposite by co-precipitation was developed. The nanoparticles were characterized using Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Transform Electron Microscopy (TEM), Thermogravimetric Differential Thermal Analysis (TGA-DTA), Dynamic Light Scattering (DLS), and Breunner-Emmet-Teller (BET) surface area analysis. The adsorption of Cd(II)-Pb(II) and Cd(II)-Pb(II)-Ni(II) ions systems on ZnO/goethite nanocomposite was investigated in a batch mode. The findings of the study showed that nanoparticles ZnO/goethite composite were mixed of spherical and rod-like shapes. The BET results revealed average particle sizes of 41.11 nm for nanoparticles for ZnO/goethite while TGA/DTA confirmed the stability of the adsorbents. The optimum adsorption capacities of the nanocomposite for Pb(II), Cd(II), and Ni(II) ions from the Pb-Cd-Ni ternary system were 415.5, 195.3, and 87.13 mg g−1, respectively. The adsorption isotherm data fitted well with the Langmuir isotherm model. The study concluded that the nanoparticle adsorbents are efficient for the remediation of toxic pollutants and are, therefore, recommended for wastewater treatment.
{"title":"Nanosorbent based on coprecipitation of ZnO in goethite for competitive sorption of Cd(II)-Pb(II) and Cd(II)-Pb(II)-Ni(II) systems","authors":"John Godwin, Jacques Romain Njimou, Nasalam Abdus-Salam, Haleemat Iyabode Adegoke, Prasanna Kumar Panda, Bankim Chandra Tripathy, Sanda Andrada Maicaneanu","doi":"10.1007/s40201-023-00882-x","DOIUrl":"10.1007/s40201-023-00882-x","url":null,"abstract":"<div><p>Amongst the various water pollutants, heavy metal ions require special attention because of their toxic nature and effects on humans and the environment. Preserving natural resources will have positive impacts on living conditions by reducing diseases and water treatment by nanotechnology is effective in solving this problem owing to the properties of nanomaterials. In this study, a goethite nanoparticle was prepared by hydrothermal method, while ZnO/goethite nanocomposite by co-precipitation was developed. The nanoparticles were characterized using Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Transform Electron Microscopy (TEM), Thermogravimetric Differential Thermal Analysis (TGA-DTA), Dynamic Light Scattering (DLS), and Breunner-Emmet-Teller (BET) surface area analysis. The adsorption of Cd(II)-Pb(II) and Cd(II)-Pb(II)-Ni(II) ions systems on ZnO/goethite nanocomposite was investigated in a batch mode. The findings of the study showed that nanoparticles ZnO/goethite composite were mixed of spherical and rod-like shapes. The BET results revealed average particle sizes of 41.11 nm for nanoparticles for ZnO/goethite while TGA/DTA confirmed the stability of the adsorbents. The optimum adsorption capacities of the nanocomposite for Pb(II), Cd(II), and Ni(II) ions from the Pb-Cd-Ni ternary system were 415.5, 195.3, and 87.13 mg g<sup>−1</sup>, respectively. The adsorption isotherm data fitted well with the Langmuir isotherm model. The study concluded that the nanoparticle adsorbents are efficient for the remediation of toxic pollutants and are, therefore, recommended for wastewater treatment.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"22 1","pages":"149 - 165"},"PeriodicalIF":3.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134910441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-14DOI: 10.1007/s40201-023-00880-z
Erik Geraldo da Silva Souza, Marcelo Girotto Rebelato
Purpose
This study aimed to present an index (IEP) to evaluate the environmental performance of the sugar-energy industrial process based on the waste generated in manufacturing operations. The residues considered in this study were: vinasse, filter cake, ash and soot, residual waters, and sewage sludge.
Methods
The index created was developed to take into account, and to be directly proportional to the environmental impact of each residue generated by the sugar-energy production, to the relative spatial dispersion that each waste can reach, and to the environmental fragility of the hydrographic basin where the plant under evaluation is inserted and works. The lower IEP, the better the company valuation.
Results
The index was tested in a real company and exhibited an IEP Total = 1,4.1013 km2.p/yr, which shows weak waste management by the enterprise. Vinasse was responsible for 50% of the IEP Total, while filter cake contributed 45% to it. Ash and soot, residual waters, and sewage sludge were together responsible for 5% of the IEP Total.
Conclusion
The theoretical conception used in this study is inspiring for the development of new studies on environmental assessment measurement. The study showed that vinasse is the most problematic waste in environmental terms, a conclusion that is in line with academic studies. Nevertheless, the waste with the greatest potential impact on the environment is filter cake. Despite this, filter cake presented a lower IEP(i) than vinasse, given that its negative impact on the basin is smaller. Both wastes contributed 95% of the IEP Total, which places them among the residues to be managed with greater attention.
{"title":"Assessment of the environmental performance of sugarcane companies based on waste disposed of on the soil","authors":"Erik Geraldo da Silva Souza, Marcelo Girotto Rebelato","doi":"10.1007/s40201-023-00880-z","DOIUrl":"10.1007/s40201-023-00880-z","url":null,"abstract":"<div><h3>Purpose</h3><p>This study aimed to present an index (<i>IEP</i>) to evaluate the environmental performance of the sugar-energy industrial process based on the waste generated in manufacturing operations. The residues considered in this study were: vinasse, filter cake, ash and soot, residual waters, and sewage sludge.</p><h3>Methods</h3><p>The index created was developed to take into account, and to be directly proportional to the environmental impact of each residue generated by the sugar-energy production, to the relative spatial dispersion that each waste can reach, and to the environmental fragility of the hydrographic basin where the plant under evaluation is inserted and works. The lower IEP, the better the company valuation.</p><h3>Results</h3><p>The index was tested in a real company and exhibited an <i>IEP Total</i> = 1,4.10<sup>13</sup> km<sup>2</sup>.p/yr, which shows weak waste management by the enterprise. Vinasse was responsible for 50% of the <i>IEP Total, </i>while filter cake contributed 45% to it. Ash and soot, residual waters, and sewage sludge were together responsible for 5% of the <i>IEP Total</i>.</p><h3>Conclusion</h3><p>The theoretical conception used in this study is inspiring for the development of new studies on environmental assessment measurement. The study showed that vinasse is the most problematic waste in environmental terms, a conclusion that is in line with academic studies. Nevertheless, the waste with the greatest potential impact on the environment is filter cake. Despite this, filter cake presented a lower <i>IEP(i) </i>than vinasse, given that its negative impact on the basin is smaller. Both wastes contributed 95% of the <i>IEP Total</i>, which places them among the residues to be managed with greater attention.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"22 1","pages":"123 - 137"},"PeriodicalIF":3.0,"publicationDate":"2023-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00880-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135803391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-11DOI: 10.1007/s40201-023-00879-6
Neamatollah Jaafarzadeh, Nastaran Talepour
Landfill leachate contains antibiotic resistance genes (ARGs) and microplastics (MPs), making it an important reservoir. However, little research has been conducted on how ARGs are enriched on MPs and how the presence of MPs affects pathogens and ARGs in leachates and soil. MPs possess the capacity to establish unique bacterial populations and assimilate contaminants from their immediate surroundings, generating a potential environment conducive to the growth of disease-causing microorganisms and antibiotic resistance genes (ARGs), thereby exerting selection pressure. Through a comprehensive analysis of scientific literature, we have carried out a practical assessment of this topic. The gathering of pollutants and the formation of dense bacterial communities on microplastics create advantageous circumstances for an increased frequency of ARG transfer and evolution. Additional investigations are necessary to acquire a more profound comprehension of how pathogens and ARGs are enriched, transported, and transferred on microplastics. This research is essential for evaluating the health risks associated with human exposure to these pollutants.
{"title":"Microplastics as carriers of antibiotic resistance genes and pathogens in municipal solid waste (MSW) landfill leachate and soil: a review","authors":"Neamatollah Jaafarzadeh, Nastaran Talepour","doi":"10.1007/s40201-023-00879-6","DOIUrl":"10.1007/s40201-023-00879-6","url":null,"abstract":"<div><p>Landfill leachate contains antibiotic resistance genes (ARGs) and microplastics (MPs), making it an important reservoir. However, little research has been conducted on how ARGs are enriched on MPs and how the presence of MPs affects pathogens and ARGs in leachates and soil. MPs possess the capacity to establish unique bacterial populations and assimilate contaminants from their immediate surroundings, generating a potential environment conducive to the growth of disease-causing microorganisms and antibiotic resistance genes (ARGs), thereby exerting selection pressure. Through a comprehensive analysis of scientific literature, we have carried out a practical assessment of this topic. The gathering of pollutants and the formation of dense bacterial communities on microplastics create advantageous circumstances for an increased frequency of ARG transfer and evolution. Additional investigations are necessary to acquire a more profound comprehension of how pathogens and ARGs are enriched, transported, and transferred on microplastics. This research is essential for evaluating the health risks associated with human exposure to these pollutants.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"22 1","pages":"1 - 12"},"PeriodicalIF":3.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-12DOI: 10.1007/s40201-023-00878-7
Amina Lissaneddine, Khalid Aziz, Naaila Ouazzani, Mounir El Achaby, Imane Haydari, Laila Mandi, Faissal Aziz
This present study depicts the successful employment of fixed-bed column for total chromium removal from tannery wastewater in dynamic mode using sodium alginate-powdered marble beads (SA–Marble) as adsorbent. The SA–Marble composite beads prepared were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and Brunauer, Emmett and Teller (BET) method. The adsorption process performance of this bio-sorbent was examined in batches and columns for real effluent (tannery wastewater). After 90 min, the total chromium removal efficiency could be kept above 90% in the batch experiment. The adsorption kinetics fit better with the pseudo-second-order model, indicating the chemisorption process and the adsorption capacity of about 67.74 mg g−1 at 293 K (C0 = 7100 mg L−1) was obtained. Additionally, dynamic experiments indicate that the total chromium removal efficiency could be maintained above 90% after 120 min at 293 K and 60 min at 318 and 333 K; it’s an endothermic but rapid process. The effects of two adsorption variables (Temperature and time) were investigated using central composite design (CCD), which is a subset of response surface methodology (total Cr, COD, sulfate, and total phosphorus percentage removal). This work paves a new avenue for synthesizing SA–Marble composite beads and provides an adsorption efficiency of total chromium removal from tannery wastewater.
{"title":"Continuous treatment of highly concentrated tannery wastewater using novel porous composite beads: Central composite design optimization study","authors":"Amina Lissaneddine, Khalid Aziz, Naaila Ouazzani, Mounir El Achaby, Imane Haydari, Laila Mandi, Faissal Aziz","doi":"10.1007/s40201-023-00878-7","DOIUrl":"10.1007/s40201-023-00878-7","url":null,"abstract":"<div><p>This present study depicts the successful employment of fixed-bed column for total chromium removal from tannery wastewater in dynamic mode using sodium alginate-powdered marble beads (SA–Marble) as adsorbent. The SA–Marble composite beads prepared were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and Brunauer, Emmett and Teller (BET) method. The adsorption process performance of this bio-sorbent was examined in batches and columns for real effluent (tannery wastewater). After 90 min, the total chromium removal efficiency could be kept above 90% in the batch experiment. The adsorption kinetics fit better with the pseudo-second-order model, indicating the chemisorption process and the adsorption capacity of about 67.74 mg g<sup>−1</sup> at 293 K (C0 = 7100 mg L<sup>−1</sup>) was obtained. Additionally, dynamic experiments indicate that the total chromium removal efficiency could be maintained above 90% after 120 min at 293 K and 60 min at 318 and 333 K; it’s an endothermic but rapid process. The effects of two adsorption variables (Temperature and time) were investigated using central composite design (CCD), which is a subset of response surface methodology (total Cr, COD, sulfate, and total phosphorus percentage removal). This work paves a new avenue for synthesizing SA–Marble composite beads and provides an adsorption efficiency of total chromium removal from tannery wastewater.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"513 - 532"},"PeriodicalIF":3.4,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00878-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49694860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-23DOI: 10.1007/s40201-023-00876-9
Marco Cuccarese, Stijn W. H. Van Hulle, Ignazio M. Mancini, Salvatore Masi, Donatella Caniani
Nowadays, public concern is focused on the degradation of water quality. For this reason, the development of innovative technologies for water treatment in view of (micro)pollutant removal is important. Indeed, organic (micro)pollutants, such as pharmaceuticals, herbicides, pesticides and plasticizers at concentration levels of μg L−1 or even ng L−1 are hardly removed during conventional wastewater treatment. In view of this, thermo-plasma expanded graphite, a light-weight innovative material in the form of a powder, was encapsulated into calcium alginate to obtain a granular form useful as filtration and adsorption material for removal of different pollutants. The produced material was used to remove atrazine, bisphenol-A, 17-α-ethinylestradiol and carbamazepine (at concentration levels of 125, 250 and 500 µg L−1) by top-down filtration. The effect of flow rate, bed depth and adsorbent composition was evaluated based on breakthrough curves. The experimental data was analysed with the Adams-Bohart model in view of scale-up. Under optimal conditions, removal and adsorption capacity of respectively about 21%, 21%, 38%,42%, 43 µg g−1, 44 µg g−1, 37 µg g−1 and 87 µg g−1 were obtained for atrazine, bisphenol, 17-α ethinylestradiol and carbamazepine when using 0.12 g of thermo-plasma expanded graphite to treat 200 mL at 500 µg L−1 (for each compound) of solution obtaining at contact time of 20 min. The granular form of TPEG obtained (GTPEG) by entrapping in calcium alginate results to have a good adsorbent property for the removal of carbamazepine, atrazine, bisphenol A and 17-α ethinylestradiol from water at concentration levels between 250 and 500 μg L−1. Promising results confirm the adsorbent properties of TPEG and push-up us to investigate on its application and improve of its performance by evaluating different entrapping materials.
{"title":"Removal of organic micropollutants from water by adsorption on thermo-plasma expanded graphite encapsulated into calcium alginate","authors":"Marco Cuccarese, Stijn W. H. Van Hulle, Ignazio M. Mancini, Salvatore Masi, Donatella Caniani","doi":"10.1007/s40201-023-00876-9","DOIUrl":"10.1007/s40201-023-00876-9","url":null,"abstract":"<div><p>Nowadays, public concern is focused on the degradation of water quality. For this reason, the development of innovative technologies for water treatment in view of (micro)pollutant removal is important. Indeed, organic (micro)pollutants, such as pharmaceuticals, herbicides, pesticides and plasticizers at concentration levels of μg L<sup>−1</sup> or even ng L<sup>−1</sup> are hardly removed during conventional wastewater treatment. In view of this, thermo-plasma expanded graphite, a light-weight innovative material in the form of a powder, was encapsulated into calcium alginate to obtain a granular form useful as filtration and adsorption material for removal of different pollutants. The produced material was used to remove atrazine, bisphenol-A, 17-α-ethinylestradiol and carbamazepine (at concentration levels of 125, 250 and 500 µg L<sup>−1</sup>) by top-down filtration. The effect of flow rate, bed depth and adsorbent composition was evaluated based on breakthrough curves. The experimental data was analysed with the Adams-Bohart model in view of scale-up. Under optimal conditions, removal and adsorption capacity of respectively about 21%, 21%, 38%,42%, 43 µg g<sup>−1</sup>, 44 µg g<sup>−1</sup>, 37 µg g<sup>−1</sup> and 87 µg g<sup>−1</sup> were obtained for atrazine, bisphenol, 17-α ethinylestradiol and carbamazepine when using 0.12 g of thermo-plasma expanded graphite to treat 200 mL at 500 µg L<sup>−1</sup> (for each compound) of solution obtaining at contact time of 20 min. The granular form of TPEG obtained (GTPEG) by entrapping in calcium alginate results to have a good adsorbent property for the removal of carbamazepine, atrazine, bisphenol A and 17-α ethinylestradiol from water at concentration levels between 250 and 500 μg L<sup>−1</sup>. Promising results confirm the adsorbent properties of TPEG and push-up us to investigate on its application and improve of its performance by evaluating different entrapping materials.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"497 - 512"},"PeriodicalIF":3.4,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00876-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49537124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pollution of the environment with all kinds of plastics has become a growing problem. The problem of microplastics is mainly due to the absorption of stable organic pollutants and metals into them, and as a result, their environmental toxicity increases. The main purpose of this study is to investigate the appropriate and efficient methods of removing microplastics from aqueous environments through a systematic review.
Methods
Present study designed according to PRISMA guidelines. Two independent researchers followed all process from search to final analysis, for the relevant studies using international databases of PubMed, Scopus and ISI/WOS (Web of Science), without time limit. The search strategy developed based on the main axis of “microplastics”, “aqueous environments” and “removal”. This research was carried out from 2017 until the March of 2022. All relevant observational, analytical studies, review articles, and a meta-analysis were included.
Results
Through a comprehensive systematic search we found 2974 papers, after running the proses of refining, 80 eligible papers included to the study. According to the results of the review, the methods of removing microplastics from aquatic environments were divided to physical (12), chemical (18), physicochemical (27), biological (12) and integrated (11) methods. In different removal methods, the most dominant group of studied microplastics belonged to the four groups of polyethylene (PE), polystyrene (PS), polypropylene (PP) and polyethylene tetra phthalate (PET). Average removal efficiency of microplastics in different processes in each method was as: physical method (73.76%), chemical method (74.38%), physicochemical method (80.44%), biological method (75.23%) and integrated method (88.63%). The highest removal efficiency occurred in the processes based on the integrated method and the lowest efficiency occurred in the physical method. In total, 80% of the studies were conducted on a laboratory scale, 18.75% on a full scale and 1.25% on a pilot scale.
Conclusion
According to the findings; different processes based on physical, chemical, physicochemical, biological and integrated methods are able to remove microplastics with high efficiency from aqueous environments and in order to reduce their hazardous effects on health and environment, these processes can be easily used.
目的各种塑料对环境的污染已经成为一个日益严重的问题。微塑料的问题主要是由于其吸收了稳定的有机污染物和金属,因此其环境毒性增加。本研究的主要目的是通过系统综述,研究从水环境中去除微塑料的适当有效方法。方法本研究按PRISMA指导原则设计。两名独立研究人员使用PubMed、Scopus和ISI/WOS(Web of Science)的国际数据库对相关研究进行了从搜索到最终分析的所有过程,没有时间限制。搜索策略以“微塑料”、“水环境”和“去除”为主轴。这项研究从2017年一直进行到2022年3月。包括所有相关的观察、分析研究、综述文章和荟萃分析。结果通过全面系统的检索,共发现2974篇论文,经过提炼,80篇符合条件的论文纳入本研究。根据综述结果,从水生环境中去除微塑料的方法分为物理(12)、化学(18)、物理化学(27)、生物(12)和综合(11)方法。在不同的去除方法中,所研究的微塑料中最主要的一组属于聚乙烯(PE)、聚苯乙烯(PS)、聚丙烯(PP)和聚对苯二甲酸四酯(PET)四组。不同工艺对微塑料的平均去除率分别为:物理法(73.76%)、化学法(74.38%)、物理化学法(80.44%)、生物法(75.23%)和综合法(88.63%)。总的来说,80%的研究是在实验室规模上进行的,18.75%是在全规模上进行,1.25%是在中试规模上进行。结论根据研究结果;基于物理、化学、物理化学、生物和综合方法的不同工艺能够高效去除水环境中的微塑料,为了减少其对健康和环境的危害,这些工艺可以很容易地使用。
{"title":"Microplastics removal technologies from aqueous environments: a systematic review","authors":"Arman Arbabi, Mitra Gholami, Mahdi Farzadkia, Shirin Djalalinia","doi":"10.1007/s40201-023-00872-z","DOIUrl":"10.1007/s40201-023-00872-z","url":null,"abstract":"<div><h3>Purpose</h3><p>Pollution of the environment with all kinds of plastics has become a growing problem. The problem of microplastics is mainly due to the absorption of stable organic pollutants and metals into them, and as a result, their environmental toxicity increases. The main purpose of this study is to investigate the appropriate and efficient methods of removing microplastics from aqueous environments through a systematic review.</p><h3>Methods</h3><p>Present study designed according to PRISMA guidelines. Two independent researchers followed all process from search to final analysis, for the relevant studies using international databases of PubMed, Scopus and ISI/WOS (Web of Science), without time limit. The search strategy developed based on the main axis of “microplastics”, “aqueous environments” and “removal”. This research was carried out from 2017 until the March of 2022. All relevant observational, analytical studies, review articles, and a meta-analysis were included.</p><h3>Results</h3><p>Through a comprehensive systematic search we found 2974 papers, after running the proses of refining, 80 eligible papers included to the study. According to the results of the review, the methods of removing microplastics from aquatic environments were divided to physical (12), chemical (18), physicochemical (27), biological (12) and integrated (11) methods. In different removal methods, the most dominant group of studied microplastics belonged to the four groups of polyethylene (PE), polystyrene (PS), polypropylene (PP) and polyethylene tetra phthalate (PET). Average removal efficiency of microplastics in different processes in each method was as: physical method (73.76%), chemical method (74.38%), physicochemical method (80.44%), biological method (75.23%) and integrated method (88.63%). The highest removal efficiency occurred in the processes based on the integrated method and the lowest efficiency occurred in the physical method. In total, 80% of the studies were conducted on a laboratory scale, 18.75% on a full scale and 1.25% on a pilot scale.</p><h3>Conclusion</h3><p>According to the findings; different processes based on physical, chemical, physicochemical, biological and integrated methods are able to remove microplastics with high efficiency from aqueous environments and in order to reduce their hazardous effects on health and environment, these processes can be easily used.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"463 - 473"},"PeriodicalIF":3.4,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00872-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47852544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}