Pub Date : 1900-01-01DOI: 10.53052/pjmee.2021.2.05
J. Grzybowska-Pietras, Patrycja Derbin
{"title":"Wpływ czasu użytkowania na właściwości włóknin Maliwatt stosowanych jako zabezpieczenie przeciwerozyjne skarp","authors":"J. Grzybowska-Pietras, Patrycja Derbin","doi":"10.53052/pjmee.2021.2.05","DOIUrl":"https://doi.org/10.53052/pjmee.2021.2.05","url":null,"abstract":"","PeriodicalId":154525,"journal":{"name":"Polish Journal of Materials and Environmental Engineering","volume":"65 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128354130","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 : 1900-01-01DOI: 10.53052/pjmee.2021.2.04
Z. Adamczyk, A. Harat
{"title":"Zakres stosowania rozporządzenia REACH dla zeolitów","authors":"Z. Adamczyk, A. Harat","doi":"10.53052/pjmee.2021.2.04","DOIUrl":"https://doi.org/10.53052/pjmee.2021.2.04","url":null,"abstract":"","PeriodicalId":154525,"journal":{"name":"Polish Journal of Materials and Environmental Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121062574","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 : 1900-01-01DOI: 10.53052/pjmee.2023.5.03
K. Grübel, Marta Duda
{"title":"Wpływ chemicznego kondycjonowania na własności grawitacyjne osadu czynnego nadmiernego","authors":"K. Grübel, Marta Duda","doi":"10.53052/pjmee.2023.5.03","DOIUrl":"https://doi.org/10.53052/pjmee.2023.5.03","url":null,"abstract":"","PeriodicalId":154525,"journal":{"name":"Polish Journal of Materials and Environmental Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125700536","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 : 1900-01-01DOI: 10.53052/pjmee.2023.5.02
M. Wierzbińska, J. Kozak, E. Zając
{"title":"Zmienność stężeń pyłu zawieszonego PM10 w powietrzu na terenie Krościenka nad Dunajcem w latach 2018-2022","authors":"M. Wierzbińska, J. Kozak, E. Zając","doi":"10.53052/pjmee.2023.5.02","DOIUrl":"https://doi.org/10.53052/pjmee.2023.5.02","url":null,"abstract":"","PeriodicalId":154525,"journal":{"name":"Polish Journal of Materials and Environmental Engineering","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116771105","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 : 1900-01-01DOI: 10.53052/pjmee.2023.5.01
A. Harat, A. Jaguś
{"title":"Problematyka koncesjonowania wydobycia kopalin energetycznych w Polsce","authors":"A. Harat, A. Jaguś","doi":"10.53052/pjmee.2023.5.01","DOIUrl":"https://doi.org/10.53052/pjmee.2023.5.01","url":null,"abstract":"","PeriodicalId":154525,"journal":{"name":"Polish Journal of Materials and Environmental Engineering","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125164682","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 : 1900-01-01DOI: 10.53052/pjmee.2021.1.02
K. Grübel, S. Wacławek
The aim of the research work was to determine the possibility of initial hydrolysis of the waste activated sludge with the use of the alkalization process. On the basis of the tests performed, it was found that the obtained pH value drops quite quickly after adding NaOH. In practice, after a period of 30 minutes, a further decrease in the pH value takes place, but at a lower rate. Therefore, 30 minutes was considered as a technically valid reaction time. After this reaction time, the COD (soluble COD; S-COD) values were recorded. They represented the release of organic matter into the liquid phase. In addition, a second disintegration method was carried out, on the alkalized earlier waste activated sludge, based on the phenomenon of hydrodynamic cavitation. Carrying out such a hybrid method of destroying activated sludge flocs and microorganisms contributed to the achievement of much greater hydrolysis effects. On the basis of the conducted research, it can be concluded that the use of such hydrolysis processes lead to good results in relation to further sludge processing, e.g. anaerobic digestion, which may result in a significant improvement in biogas production and an increase in biogas yield. Pol. J. Mater. Environ. Eng. June 2021, vol. 1(21), 16–25
{"title":"Alkalization as a method of preliminary hydrolysis of waste activated sludge before the anaerobic digestion process","authors":"K. Grübel, S. Wacławek","doi":"10.53052/pjmee.2021.1.02","DOIUrl":"https://doi.org/10.53052/pjmee.2021.1.02","url":null,"abstract":"The aim of the research work was to determine the possibility of initial hydrolysis of the waste activated sludge with the use of the alkalization process. On the basis of the tests performed, it was found that the obtained pH value drops quite quickly after adding NaOH. In practice, after a period of 30 minutes, a further decrease in the pH value takes place, but at a lower rate. Therefore, 30 minutes was considered as a technically valid reaction time. After this reaction time, the COD (soluble COD; S-COD) values were recorded. They represented the release of organic matter into the liquid phase. In addition, a second disintegration method was carried out, on the alkalized earlier waste activated sludge, based on the phenomenon of hydrodynamic cavitation. Carrying out such a hybrid method of destroying activated sludge flocs and microorganisms contributed to the achievement of much greater hydrolysis effects. On the basis of the conducted research, it can be concluded that the use of such hydrolysis processes lead to good results in relation to further sludge processing, e.g. anaerobic digestion, which may result in a significant improvement in biogas production and an increase in biogas yield. Pol. J. Mater. Environ. Eng. June 2021, vol. 1(21), 16–25","PeriodicalId":154525,"journal":{"name":"Polish Journal of Materials and Environmental Engineering","volume":"354 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132450200","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 : 1900-01-01DOI: 10.53052/pjmee.2023.5.04
Marcela Adamczyk, D. Chmura
{"title":"Wpływ ekranów akustycznych na śmiertelność ptaków na przykładzie Bielska-Białej","authors":"Marcela Adamczyk, D. Chmura","doi":"10.53052/pjmee.2023.5.04","DOIUrl":"https://doi.org/10.53052/pjmee.2023.5.04","url":null,"abstract":"","PeriodicalId":154525,"journal":{"name":"Polish Journal of Materials and Environmental Engineering","volume":"16 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125765067","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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