Pub Date : 2022-02-21DOI: 10.1186/s42834-022-00124-z
Obumneme O. Okwonna, I. Otaraku
{"title":"Kinetic modelling of in situ treatment of petroleum hydrocarbon contaminated soil using bone char and NPK fertilizers","authors":"Obumneme O. Okwonna, I. Otaraku","doi":"10.1186/s42834-022-00124-z","DOIUrl":"https://doi.org/10.1186/s42834-022-00124-z","url":null,"abstract":"","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2022-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44219316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Improving water quality is a critical issue worldwide. However, the general parameters (i.e., temperature, pH, turbidity, total solids, fecal coliform, dissolved oxygen, biochemical oxygen demand, phosphates, and nitrates) used in water quality index estimations are unable to identify pollution from industrial wastewater. This study investigated pollution sources at a river pollution hotspot by using the positive matrix factorization (PMF) model. A two-phase sampling collection along a highly polluted river in northern Taiwan was designed. The sampling spots were distributed along the river in Phase I to monitor the spatial variation of river pollutants. A pollution hotspot was determined based on two indices, namely the summed concentrations of metal elements and a metal index (MI). In Phase II, the river water samples were collected from the hotspot twice daily over 30 consecutive days to monitor the temporal variation of river pollutants. Source profiles of metal elements were obtained during the monitoring period. The Phase II samples were then factorized using the PMF model. Factor profiles retrieved from the PMF model were further assigned to industrial categories through Pearson correlation coefficients and hierarchical classification. The results indicated that the main pollution source was bare printed circuit boards (BPCB), which contributed up to 92% of the copper in the pollution hotspot. In terms of MI apportionment of 11 metals related to health effects, BPCB contributed 91% of the MI in high pollution events. Overall, the MI apportionment provides linkages between pollution level and human health. This is an evidence for policymakers that the regulation of the effluents of BPCB is an effective means to controlling copper concentrations and thus improving water quality in the study area.
{"title":"Hazard ranking of wastewater sources in a highly polluted river in northern Taiwan by using positive matrix factorization with metal elements","authors":"P. Hsieh, Huan-Chun Lin, Gen-Shuh Wang, Yuan-Jeng Hsu, Yijia Chen, Tzu-Hui Wang, Renxin Wang, Chun-Yu Kuo, Di-Wen Wang, H. Liao, Chang-Fu Wu","doi":"10.21203/rs.3.rs-1236922/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-1236922/v1","url":null,"abstract":"Improving water quality is a critical issue worldwide. However, the general parameters (i.e., temperature, pH, turbidity, total solids, fecal coliform, dissolved oxygen, biochemical oxygen demand, phosphates, and nitrates) used in water quality index estimations are unable to identify pollution from industrial wastewater. This study investigated pollution sources at a river pollution hotspot by using the positive matrix factorization (PMF) model. A two-phase sampling collection along a highly polluted river in northern Taiwan was designed. The sampling spots were distributed along the river in Phase I to monitor the spatial variation of river pollutants. A pollution hotspot was determined based on two indices, namely the summed concentrations of metal elements and a metal index (MI). In Phase II, the river water samples were collected from the hotspot twice daily over 30 consecutive days to monitor the temporal variation of river pollutants. Source profiles of metal elements were obtained during the monitoring period. The Phase II samples were then factorized using the PMF model. Factor profiles retrieved from the PMF model were further assigned to industrial categories through Pearson correlation coefficients and hierarchical classification. The results indicated that the main pollution source was bare printed circuit boards (BPCB), which contributed up to 92% of the copper in the pollution hotspot. In terms of MI apportionment of 11 metals related to health effects, BPCB contributed 91% of the MI in high pollution events. Overall, the MI apportionment provides linkages between pollution level and human health. This is an evidence for policymakers that the regulation of the effluents of BPCB is an effective means to controlling copper concentrations and thus improving water quality in the study area.","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":"32 1","pages":"1-10"},"PeriodicalIF":4.9,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47427398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 : 2022-02-08DOI: 10.21203/rs.3.rs-1239703/v1
S. Tirukkovalluri, G. Jaishree, G. Divya, M. Chippada, I. M. Raju
Visible light-driven Zn and Mg co-doped TiO 2 nanomaterials were synthesized by varying dopant concentrations in presence of biogenic surfactant Sapindus emerginatus (biogenic extract) via the Sol-gel method and have been successfully applicated to the degradation of Amido Black 10B (AB 10B), an exemplary anionic textile azo dye pollutant. This study explored the potent capping properties of biogenic extract surfactant by encapsulating the Zn/Mg co-doped TiO 2 . In a view to assessing the physical and optical properties of the as-synthesized catalysts, various advanced instrumental techniques were adopted. The Transmission Electron Microscopy and Scanning Electron Microscopy analysis show the formation of small particle sizes (6.9 nm) pertaining to biogenic surfactant-assisted Zn/Mg co-doped TiO 2 (ZMT4S2). The substitutional doping of Zn and Mg into the TiO 2 framework by substituting Ti 4+ ion and the encapsulation of surfactant around catalyst was confirmed by Fourier Transform-Infrared Spectroscopy (FTIR) spectral studies. The surface area of the ZMT4S2 was found to be high (195 m 2 g − 1 ) as compared with undoped TiO 2 (74 m 2 g − 1 ) and Zn (1.00 wt%) / Mg (0.25 wt%) co-doped TiO 2 (ZMT4) (132 m 2 g − 1 ). The red shift in the absorbance was observed for all the catalysts analyzed using UV-Vis-Diffuse Reflectance Spectroscopy (UV-Vis-DRS) confirms the ZMT4S2 showing less band gap of 2.1 eV than other catalysts. Further the electrical property of the catalyst was studied using Electrochemical Impedance Spectroscopy. The results obtained from impedance and Mott-Schotky plots show the reduced electrical resistance and electron hole recombination respectively. The sensitivity of the catalyst towards visible light was confirmed by its band gap energy measurement using UV-Vis-DRS. The anatase phase of all the catalysts was confirmed using powder X-ray diffraction. The composition and wt% of dopants revealed the Energy Dispersive X-ray spectra agree well with the calculated value. The slightly shifted frequency bands (FTIR) further confirmed the doping of Zn and Mg. The characterization analysis reports further accounts for the effective degradation of AB 10B dye (99%) taking place within 20 min of irradiation time at optimized reaction parameters such as best dopant concentration ZMT4, catalyst dosage (100 mg L − 1 ), dye concentration (10 mg L − 1 ) and solution pH 3.
采用溶胶-凝胶法制备了不同掺杂浓度的可见光驱动Zn和Mg共掺杂二氧化钛纳米材料，并成功用于降解阴离子型纺织偶氮染料污染物Amido Black 10B (AB 10B)。本研究通过包封Zn/Mg共掺杂二氧化钛，探索了生物萃取表面活性剂的有效封盖特性。为了评估合成催化剂的物理和光学性质，采用了各种先进的仪器技术。透射电镜和扫描电镜分析表明，生物源表面活性剂辅助Zn/Mg共掺杂tio2 (ZMT4S2)形成了小颗粒尺寸(6.9 nm)。傅里叶变换-红外光谱(FTIR)研究证实了Zn和Mg通过取代ti4 +离子进入tio2骨架，并在催化剂周围包封了表面活性剂。ZMT4S2的表面积(195 m²g−1)高于未掺杂tio2 (74 m²g−1)和Zn (1.00 wt%) / Mg (0.25 wt%)共掺杂tio2 (ZMT4) (132 m²g−1)。利用uv - vis -漫反射光谱(UV-Vis-DRS)分析了所有催化剂的吸光度红移，证实了ZMT4S2比其他催化剂具有更小的2.1 eV带隙。进一步用电化学阻抗谱法研究了催化剂的电学性能。阻抗图和Mott-Schotky图分别显示了电阻和电子空穴复合的减小。利用UV-Vis-DRS对催化剂的带隙能进行测量，证实了催化剂对可见光的敏感性。用粉末x射线衍射证实了所有催化剂的锐钛矿相。结果表明，掺杂剂的组成和wt%与计算值吻合较好。微移频带(FTIR)进一步证实了Zn和Mg的掺杂。表征分析报告进一步说明了在最佳掺杂剂浓度ZMT4、催化剂用量(100 mg L−1)、染料浓度(10 mg L−1)和溶液pH 3等优化反应参数下，ab10b染料在20 min内有效降解(99%)。
{"title":"Biogenic surfactant mediated facile synthesis of visible light sensitized Zn/Mg co-doped TiO2 nanomaterials – a green approach: evaluation of photocatalytic activity by degradation of Amido Black 10B","authors":"S. Tirukkovalluri, G. Jaishree, G. Divya, M. Chippada, I. M. Raju","doi":"10.21203/rs.3.rs-1239703/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-1239703/v1","url":null,"abstract":"Visible light-driven Zn and Mg co-doped TiO 2 nanomaterials were synthesized by varying dopant concentrations in presence of biogenic surfactant Sapindus emerginatus (biogenic extract) via the Sol-gel method and have been successfully applicated to the degradation of Amido Black 10B (AB 10B), an exemplary anionic textile azo dye pollutant. This study explored the potent capping properties of biogenic extract surfactant by encapsulating the Zn/Mg co-doped TiO 2 . In a view to assessing the physical and optical properties of the as-synthesized catalysts, various advanced instrumental techniques were adopted. The Transmission Electron Microscopy and Scanning Electron Microscopy analysis show the formation of small particle sizes (6.9 nm) pertaining to biogenic surfactant-assisted Zn/Mg co-doped TiO 2 (ZMT4S2). The substitutional doping of Zn and Mg into the TiO 2 framework by substituting Ti 4+ ion and the encapsulation of surfactant around catalyst was confirmed by Fourier Transform-Infrared Spectroscopy (FTIR) spectral studies. The surface area of the ZMT4S2 was found to be high (195 m 2 g − 1 ) as compared with undoped TiO 2 (74 m 2 g − 1 ) and Zn (1.00 wt%) / Mg (0.25 wt%) co-doped TiO 2 (ZMT4) (132 m 2 g − 1 ). The red shift in the absorbance was observed for all the catalysts analyzed using UV-Vis-Diffuse Reflectance Spectroscopy (UV-Vis-DRS) confirms the ZMT4S2 showing less band gap of 2.1 eV than other catalysts. Further the electrical property of the catalyst was studied using Electrochemical Impedance Spectroscopy. The results obtained from impedance and Mott-Schotky plots show the reduced electrical resistance and electron hole recombination respectively. The sensitivity of the catalyst towards visible light was confirmed by its band gap energy measurement using UV-Vis-DRS. The anatase phase of all the catalysts was confirmed using powder X-ray diffraction. The composition and wt% of dopants revealed the Energy Dispersive X-ray spectra agree well with the calculated value. The slightly shifted frequency bands (FTIR) further confirmed the doping of Zn and Mg. The characterization analysis reports further accounts for the effective degradation of AB 10B dye (99%) taking place within 20 min of irradiation time at optimized reaction parameters such as best dopant concentration ZMT4, catalyst dosage (100 mg L − 1 ), dye concentration (10 mg L − 1 ) and solution pH 3.","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":" ","pages":"1-20"},"PeriodicalIF":4.9,"publicationDate":"2022-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47519434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 : 2022-01-31DOI: 10.1186/s42834-022-00122-1
Nhat Huy Luan, Yu-Ting Yang, Chiung-Fen Chang
{"title":"Electrochemical degradation of methylene blue accompanied with the reduction of CO2 by using carbon nanotubes grown on carbon fiber electrodes","authors":"Nhat Huy Luan, Yu-Ting Yang, Chiung-Fen Chang","doi":"10.1186/s42834-022-00122-1","DOIUrl":"https://doi.org/10.1186/s42834-022-00122-1","url":null,"abstract":"","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44211335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 : 2022-01-24DOI: 10.1186/s42834-022-00117-y
R. Liu, Minh Man Trinh, M. Chang
{"title":"Photocatalytic removal of toluene with CdIn2S4/CNFs catalyst: effect of ozone addition","authors":"R. Liu, Minh Man Trinh, M. Chang","doi":"10.1186/s42834-022-00117-y","DOIUrl":"https://doi.org/10.1186/s42834-022-00117-y","url":null,"abstract":"","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2022-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48543537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 : 2022-01-15DOI: 10.1186/s42834-022-00118-x
Yu-Fong Huang, Szu-Ling Chou, S. Lo
{"title":"Gold recovery from waste printed circuit boards of mobile phones by using microwave pyrolysis and hydrometallurgical methods","authors":"Yu-Fong Huang, Szu-Ling Chou, S. Lo","doi":"10.1186/s42834-022-00118-x","DOIUrl":"https://doi.org/10.1186/s42834-022-00118-x","url":null,"abstract":"","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":"25 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"65798434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 : 2022-01-11DOI: 10.1186/s42834-021-00115-6
S. Chapagain, G. Mohan, A. B. Rimba, C. Payus, I. Sudarma, K. Fukushi
{"title":"Analyzing the relationship between water pollution and economic activity for a more effective pollution control policy in Bali Province, Indonesia","authors":"S. Chapagain, G. Mohan, A. B. Rimba, C. Payus, I. Sudarma, K. Fukushi","doi":"10.1186/s42834-021-00115-6","DOIUrl":"https://doi.org/10.1186/s42834-021-00115-6","url":null,"abstract":"","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2022-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49248643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 : 2022-01-08DOI: 10.1186/s42834-021-00112-9
C. Fermanelli, Adrián Chiappori, L. Pierella, C. Saux
{"title":"Towards biowastes valorization: Peanut shell as resource for quality chemicals and activated biochar production","authors":"C. Fermanelli, Adrián Chiappori, L. Pierella, C. Saux","doi":"10.1186/s42834-021-00112-9","DOIUrl":"https://doi.org/10.1186/s42834-021-00112-9","url":null,"abstract":"","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2022-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48700316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
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