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https://doi.org/10.21256/zhaw-20668| Publication type: | Master thesis |
| Title: | Decentralised water reuse in Central Europe : steps towards understanding processes in an anaerobic wastewater treatment plant, including the removal of micropollutants |
| Authors: | Bulant, Nicola |
| Advisors / Reviewers: | Schönborn, Andreas Zimmermann, Nanchoz |
| DOI: | 10.21256/zhaw-20668 |
| Extent: | 72 |
| Issue Date: | 2019 |
| Publisher / Ed. Institution: | ZHAW Zürcher Hochschule für Angewandte Wissenschaften |
| Publisher / Ed. Institution: | Winterthur |
| Language: | English |
| Subjects: | Wastewater; Decentralised wastewater treatment; Micropollutants; Planar-Yes bioassay; Activated biochar; Water reuse |
| Subject (DDC): | 620: Engineering |
| Abstract: | Wastewater from the first decentralised anaerobic-aerobic treatment plant in Switzerland, “IWB”, with micropollutant (MP) elimination step and wastewater reclamation for irrigation, was analysed. Improvements made in the biological treatment, to support the removal of organic pollutants, were monitored. The organic matter was removed up to 81.2% for COD and over 90% for BOD, but showed still too high values for save reuse. Nutrients, such as, NH4-N, PO4-P were found to be preserved during the treatment. During the observation period, the IWB did not achieve the expected treatment performance. It was assumed that the biology was inhibited by some unknown substances in the wastewater. Observations indicated shock loads with detergents and hydraulic short-circuits. The IWB was screened on two days for estrogenic active substances using the planar-YES bioassay. Estrone (E1) and17β-Estradiol (E2) were found in concentrations of up to 16.3 ng/l for E1 and 17.4 ng/l for E2. The oral contraceptive 17-Ethinylestradiol (EE2) was only measured in the aerobic part of the IWB in the first screening, and in low concentrations. In total six unknown substances were detected, where one of them most likely seemed to be Bisphenol A. To assess the potential role of biochar and activated biochar for MP elimination in wastewater, a biochar (BC) from cherry stones and three different activated biochars (ABC) from K2CO3 impregnated cherry stones, with different impregnation ratios, were produced. The pyrolysis was performed using the Pyreka pyrolysis reactor at 500 °C and a holding time of 10 min. Methylene blue (MB) adsorption experiments were performed with this chars and compared with a regular activated carbon. The BC showed the least adsorption of MB in all experiments. The ABC, activated with an impregnation ratio of 1:1/4, showed the best adsorption among the activated biochars. The best adsorption performance showed the regular AC. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/20668 |
| License (according to publishing contract): | CC BY 4.0: Attribution 4.0 International |
| Departement: | Life Sciences and Facility Management |
| Appears in collections: | Masterarbeiten Umwelt und Natürliche Ressourcen |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| HS 2018_Bulant Nicola_MA ENR.pdf | 2.48 MB | Adobe PDF |  View/Open |
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Bulant, N. (2019). Decentralised water reuse in Central Europe : steps towards understanding processes in an anaerobic wastewater treatment plant, including the removal of micropollutants [Master’s thesis, ZHAW Zürcher Hochschule für Angewandte Wissenschaften]. https://doi.org/10.21256/zhaw-20668
Bulant, N. (2019) Decentralised water reuse in Central Europe : steps towards understanding processes in an anaerobic wastewater treatment plant, including the removal of micropollutants. Master’s thesis. ZHAW Zürcher Hochschule für Angewandte Wissenschaften. Available at: https://doi.org/10.21256/zhaw-20668.
N. Bulant, “Decentralised water reuse in Central Europe : steps towards understanding processes in an anaerobic wastewater treatment plant, including the removal of micropollutants,” Master’s thesis, ZHAW Zürcher Hochschule für Angewandte Wissenschaften, Winterthur, 2019. doi: 10.21256/zhaw-20668.
BULANT, Nicola, 2019. Decentralised water reuse in Central Europe : steps towards understanding processes in an anaerobic wastewater treatment plant, including the removal of micropollutants. Master’s thesis. Winterthur: ZHAW Zürcher Hochschule für Angewandte Wissenschaften
Bulant, Nicola. 2019. “Decentralised Water Reuse in Central Europe : Steps towards Understanding Processes in an Anaerobic Wastewater Treatment Plant, Including the Removal of Micropollutants.” Master’s thesis, Winterthur: ZHAW Zürcher Hochschule für Angewandte Wissenschaften. https://doi.org/10.21256/zhaw-20668.
Bulant, Nicola. Decentralised Water Reuse in Central Europe : Steps towards Understanding Processes in an Anaerobic Wastewater Treatment Plant, Including the Removal of Micropollutants. ZHAW Zürcher Hochschule für Angewandte Wissenschaften, 2019, https://doi.org/10.21256/zhaw-20668.
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