Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
From removal of organic micropollutants to municipal wastewater reuse - technological and social perspectives
In this thesis, wastewater reuse was investigated from technological and social perspectives, based onwhich the thesis was divided into two parts. In the first part, the removal of chemical and microbialcontaminants by full-scale and pilot-scale granular activated carbon (GAC) filters, in different processcombinations, was examined. In the second part, the perceptions of reused wastewater were studiedthrough a discourse analysis and compared with those of desalinated seawater, which is anotheralternative water source.The results showed that the treatment of wastewater with a process combination of a membranebioreactor, GAC filtration, and disinfection with ultraviolet radiation improved its quality to a level thatapproached that of drinking water. Limits on some organic micropollutants, such as pharmaceuticals, aregenerally not included in drinking water legislation or legislation for irrigation with reused wastewater,adding insecurities to the evaluation of water quality. Nevertheless, the water was treated to a highdegree and potentially constitutes a beneficial supplementary resource for irrigation or drinking waterproduction during drought or times of water scarcity. Whether the water criteria need to be complementedwith additional parameters merits further investigation.Organic micropollutants are removed by GAC filters primarily through adsorption but also throughbiological degradation. Measurements from a full-scale GAC filter indicated degradation of certainpharmaceuticals, which was confirmed in laboratory experiments with granules from various GAC filters.The degradation appeared to be affected specifically by the oxygen concentration in the filters and byoperation time.In the second part of the thesis work, the discourses over wastewater reuse and desalination on theSwedish islands of Öland and Gotland were examined and compared with general discourses identifiedfrom literature. Wastewater reuse and desalination are ways of producing drinking water whengroundwater and surface water resources are not ...
From removal of organic micropollutants to municipal wastewater reuse - technological and social perspectives
In this thesis, wastewater reuse was investigated from technological and social perspectives, based onwhich the thesis was divided into two parts. In the first part, the removal of chemical and microbialcontaminants by full-scale and pilot-scale granular activated carbon (GAC) filters, in different processcombinations, was examined. In the second part, the perceptions of reused wastewater were studiedthrough a discourse analysis and compared with those of desalinated seawater, which is anotheralternative water source.The results showed that the treatment of wastewater with a process combination of a membranebioreactor, GAC filtration, and disinfection with ultraviolet radiation improved its quality to a level thatapproached that of drinking water. Limits on some organic micropollutants, such as pharmaceuticals, aregenerally not included in drinking water legislation or legislation for irrigation with reused wastewater,adding insecurities to the evaluation of water quality. Nevertheless, the water was treated to a highdegree and potentially constitutes a beneficial supplementary resource for irrigation or drinking waterproduction during drought or times of water scarcity. Whether the water criteria need to be complementedwith additional parameters merits further investigation.Organic micropollutants are removed by GAC filters primarily through adsorption but also throughbiological degradation. Measurements from a full-scale GAC filter indicated degradation of certainpharmaceuticals, which was confirmed in laboratory experiments with granules from various GAC filters.The degradation appeared to be affected specifically by the oxygen concentration in the filters and byoperation time.In the second part of the thesis work, the discourses over wastewater reuse and desalination on theSwedish islands of Öland and Gotland were examined and compared with general discourses identifiedfrom literature. Wastewater reuse and desalination are ways of producing drinking water whengroundwater and surface water resources are not ...
From removal of organic micropollutants to municipal wastewater reuse - technological and social perspectives
Takman, Maria (Autor:in)
01.01.2024
Hochschulschrift
Elektronische Ressource
Englisch
Perspectives on Biofilms for the Removal of Organic Micropollutants in Wastewater
| BASE | 2022
Transformative Catalysis Purifies Municipal Wastewater of Micropollutants
| American Chemical Society | 2021
The economics off municipal wastewater reuse
| Wiley | 1982