Pub Date : 2023-10-01DOI: 10.1016/j.eti.2023.103424
Xuan Zheng, Xing Liu, Hang Yang, Lu Du, Xinxi Fu, Dandan Guo, Yonghua Chen
{"title":"Effect of macroporous zeolite substrate on denitrification in tidal flow constructed wetland","authors":"Xuan Zheng, Xing Liu, Hang Yang, Lu Du, Xinxi Fu, Dandan Guo, Yonghua Chen","doi":"10.1016/j.eti.2023.103424","DOIUrl":"https://doi.org/10.1016/j.eti.2023.103424","url":null,"abstract":"","PeriodicalId":11899,"journal":{"name":"Environmental Technology and Innovation","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136159899","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}
The reducing gas obtained from coke oven gas(COG) reforming is an important secondary energy source, which can replace fossil energy and contribute to the reduction of CO2 emission and sustainable development. The percentage of (H2+CO) and the ratio of H2/CO in the reducing gas are important parameters for the COG reforming. In the present work, the pyrolysis reactions of COG with O2, H2O, and CO2 were thermodynamically calculated and analyzed. The calculation results show that, (1) as only one kind of agent (O2, H2O, CO2) participate the reaction, when pyrolyzed with H2O or CO2, the percentage of (H2+CO) in the reducing gas was highest, and were 95.26%. The H2/CO in the reducing gas was highest when pyrolysis with H2O and was 3.73. (2) as two kinds of agent participate the reaction, the percentage of (H2+CO) in the reducing gas obtained by pyrolysis decreases with the proportion of O2 in the mixed gas increases. The H2/CO ratio in the reducing gas gradually decreases with increasing pyrolysis temperature. (3) in the ternary calculations of COG reforming, when the proportion of O2 is higher, the percentage of (H2+CO) is lower. When the proportion of H2O is higher and the proportion of CO2 is lower, the ratio of H2/CO is higher. The research contents and results may provide the theoretical guidance on the optimizing the COG reforming process and selection of pyrolysis agents for the development of the relative chemical and metallurgical industry.
{"title":"Thermodynamic calculation on the pyrolysis reactions of coke oven gas with multiple pyrolysis agents","authors":"Xin Jiang, Xiaoling Deng, Yulu Zhou, Qiangjian Gao, Haiyan Zheng, Fengman Shen","doi":"10.1016/j.eti.2023.103420","DOIUrl":"https://doi.org/10.1016/j.eti.2023.103420","url":null,"abstract":"The reducing gas obtained from coke oven gas(COG) reforming is an important secondary energy source, which can replace fossil energy and contribute to the reduction of CO2 emission and sustainable development. The percentage of (H2+CO) and the ratio of H2/CO in the reducing gas are important parameters for the COG reforming. In the present work, the pyrolysis reactions of COG with O2, H2O, and CO2 were thermodynamically calculated and analyzed. The calculation results show that, (1) as only one kind of agent (O2, H2O, CO2) participate the reaction, when pyrolyzed with H2O or CO2, the percentage of (H2+CO) in the reducing gas was highest, and were 95.26%. The H2/CO in the reducing gas was highest when pyrolysis with H2O and was 3.73. (2) as two kinds of agent participate the reaction, the percentage of (H2+CO) in the reducing gas obtained by pyrolysis decreases with the proportion of O2 in the mixed gas increases. The H2/CO ratio in the reducing gas gradually decreases with increasing pyrolysis temperature. (3) in the ternary calculations of COG reforming, when the proportion of O2 is higher, the percentage of (H2+CO) is lower. When the proportion of H2O is higher and the proportion of CO2 is lower, the ratio of H2/CO is higher. The research contents and results may provide the theoretical guidance on the optimizing the COG reforming process and selection of pyrolysis agents for the development of the relative chemical and metallurgical industry.","PeriodicalId":11899,"journal":{"name":"Environmental Technology and Innovation","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136093224","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}
Water-soluble harmful components that remained in SAPs pose potential risks to crop growth, resulting in decreased seed germination rate, reduced yield, and inhibited root system growth. These factors restrict its widespread use in agriculture and forestry. In this study, a new type of super absorbent polymers (AD-SAP) with low residual acrylic acid and sodium ions was synthesized by using ammonia solution instead of strong alkali sodium hydroxide for neutralization and adding modified diatomaceous earth to improve the grafting efficiency. The prepared samples were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDS), and the influence of the dosage of acrylic acid and ammonia solution used for preparation on the residual content of water-soluble harmful components in AD-SAPs was investigated. When 28% of acrylic acid, 24% of ammonia solution, and 5% of diatomaceous earth were used for synthesis, the residual acrylic acid content in AD-SAP was 0.03%, and the sodium ion content was reduced to 0.12 g/kg, which is much lower than the three commercially available SAPs. However, its water-absorption capacity has not decreased and its salt resistance has improved. The water absorption ratio of AD-SAP is 578g/g, and the salt-absorption ratio is 87 g/g. Pot experiments showed that AD-SAP eliminated the adverse effects of commercial SAPs on crop growth. The research provided technical support for the production of SAPs, and offer scientific guidance for how to mitigate the adverse effects of SAPs on crop growth.
{"title":"Synthesis and application of super absorbent polymers synthesized with ammonia solution and diatomaceous earth with low toxic residues","authors":"Xian chen, Yanjie Situ, Cailan Huang, Yifan Yang, Zongwen Liao, Xiaoyun Mao","doi":"10.1016/j.eti.2023.103371","DOIUrl":"https://doi.org/10.1016/j.eti.2023.103371","url":null,"abstract":"Water-soluble harmful components that remained in SAPs pose potential risks to crop growth, resulting in decreased seed germination rate, reduced yield, and inhibited root system growth. These factors restrict its widespread use in agriculture and forestry. In this study, a new type of super absorbent polymers (AD-SAP) with low residual acrylic acid and sodium ions was synthesized by using ammonia solution instead of strong alkali sodium hydroxide for neutralization and adding modified diatomaceous earth to improve the grafting efficiency. The prepared samples were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDS), and the influence of the dosage of acrylic acid and ammonia solution used for preparation on the residual content of water-soluble harmful components in AD-SAPs was investigated. When 28% of acrylic acid, 24% of ammonia solution, and 5% of diatomaceous earth were used for synthesis, the residual acrylic acid content in AD-SAP was 0.03%, and the sodium ion content was reduced to 0.12 g/kg, which is much lower than the three commercially available SAPs. However, its water-absorption capacity has not decreased and its salt resistance has improved. The water absorption ratio of AD-SAP is 578g/g, and the salt-absorption ratio is 87 g/g. Pot experiments showed that AD-SAP eliminated the adverse effects of commercial SAPs on crop growth. The research provided technical support for the production of SAPs, and offer scientific guidance for how to mitigate the adverse effects of SAPs on crop growth.","PeriodicalId":11899,"journal":{"name":"Environmental Technology and Innovation","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135809638","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 : 2021-11-01DOI: 10.1016/J.ETI.2021.101850
A. Alqahtani
{"title":"Improve the QoS using multi-path routing protocol for Wireless Multimedia Sensor Network","authors":"A. Alqahtani","doi":"10.1016/J.ETI.2021.101850","DOIUrl":"https://doi.org/10.1016/J.ETI.2021.101850","url":null,"abstract":"","PeriodicalId":11899,"journal":{"name":"Environmental Technology and Innovation","volume":"85 1","pages":"101850"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78724142","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 : 2021-11-01DOI: 10.1016/J.ETI.2021.101786
S. Tripathi, Sonia Choudhary, K. Poluri
{"title":"Insights into lipid accumulation features of Coccomyxa sp. IITRSTKM4 under nutrient limitation regimes","authors":"S. Tripathi, Sonia Choudhary, K. Poluri","doi":"10.1016/J.ETI.2021.101786","DOIUrl":"https://doi.org/10.1016/J.ETI.2021.101786","url":null,"abstract":"","PeriodicalId":11899,"journal":{"name":"Environmental Technology and Innovation","volume":"43 1","pages":"101786"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72661012","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 : 2021-11-01DOI: 10.1016/J.ETI.2021.101839
Y. Ravikumar, S. Razack, J. Yun, Guoyan Zhang, H. Zabed, Xianghui Qi
{"title":"Recent advances in Microalgae-based distillery wastewater treatment","authors":"Y. Ravikumar, S. Razack, J. Yun, Guoyan Zhang, H. Zabed, Xianghui Qi","doi":"10.1016/J.ETI.2021.101839","DOIUrl":"https://doi.org/10.1016/J.ETI.2021.101839","url":null,"abstract":"","PeriodicalId":11899,"journal":{"name":"Environmental Technology and Innovation","volume":"44 1","pages":"101839"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73892194","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 : 2021-11-01DOI: 10.1016/J.ETI.2021.101827
M. Thakur, A. Rai, Bhuwan B. Mishra, Sudhir P. Singh
{"title":"Novel insight into valorization of potato peel biomass into type III resistant starch and maltooligosaccharide molecules","authors":"M. Thakur, A. Rai, Bhuwan B. Mishra, Sudhir P. Singh","doi":"10.1016/J.ETI.2021.101827","DOIUrl":"https://doi.org/10.1016/J.ETI.2021.101827","url":null,"abstract":"","PeriodicalId":11899,"journal":{"name":"Environmental Technology and Innovation","volume":"6 1","pages":"101827"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86309640","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}
{"title":"Effect of hydraulic selection pressure on the characteristics of partial nitritation/anammox granular sludge in a continuous-flow reactor","authors":"Feiyue Qian, Shu-jian Cui, Feng Liu, Junpeng Luo, Zi-long Huang, Jian-fang Wang","doi":"10.1016/J.ETI.2021.102042","DOIUrl":"https://doi.org/10.1016/J.ETI.2021.102042","url":null,"abstract":"","PeriodicalId":11899,"journal":{"name":"Environmental Technology and Innovation","volume":"24 1","pages":"102042"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73049898","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 : 2021-11-01DOI: 10.1016/J.ETI.2021.101819
Jing Luo
{"title":"Online design of green urban garden landscape based on machine learning and computer simulation technology","authors":"Jing Luo","doi":"10.1016/J.ETI.2021.101819","DOIUrl":"https://doi.org/10.1016/J.ETI.2021.101819","url":null,"abstract":"","PeriodicalId":11899,"journal":{"name":"Environmental Technology and Innovation","volume":"54 1","pages":"101819"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85797827","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 : 2021-11-01DOI: 10.1016/J.ETI.2021.101822
E. Bayan, L. Pustovaya, M. G. Volkova
{"title":"Recent advances in TiO2-based materials for photocatalytic degradation of antibiotics in aqueous systems","authors":"E. Bayan, L. Pustovaya, M. G. Volkova","doi":"10.1016/J.ETI.2021.101822","DOIUrl":"https://doi.org/10.1016/J.ETI.2021.101822","url":null,"abstract":"","PeriodicalId":11899,"journal":{"name":"Environmental Technology and Innovation","volume":"78 1","pages":"101822"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84053330","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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