@article{MehlingSchnabelLondong,
  author    = {Mehling, Simon and Schnabel, Tobias and Londong, J{\"o}rg},
  title     = {Photocatalytic ozonation in an immersion rotary body reactor for the removal of micro-pollutants from the effluent of wastewater treatment plants},
  series = {Water Science \& Technology},
  volume    = {2022},
  journal   = {Water Science \& Technology},
  number    = {volume 85, issue 1},
  publisher = {IWA Publishing},
  address   = {London},
  doi       = {10.2166/wst.2021.617},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220209-45865},
  pages     = {535 -- 548},
  abstract  = {Carrier-bound titanium dioxide catalysts were used in a photocatalytic ozonation reactor for the degradation of micro-pollutants in real wastewater. A photocatalytic immersion rotary body reactor with a 36-cm disk diameter was used, and was irradiated using UV-A light-emitting diodes. The rotating disks were covered with catalysts based on stainless steel grids coated with titanium dioxide. The dosing of ozone was carried out through the liquid phase via an external enrichment and a supply system transverse to the flow direction. The influence of irradiation power and ozone dose on the degradation rate for photocatalytic ozonation was investigated. In addition, the performance of the individual processes photocatalysis and ozonation were studied. The degradation kinetics of the parent compounds were determined using liquid chromatography tandem mass spectrometry. First-order kinetics were determined for photocatalysis and photocatalytic ozonation. A maximum reaction rate of the reactor was determined, which could be achieved by both photocatalysis and photocatalytic ozonation. At a dosage of 0.4 mg /mg DOC, the maximum reaction rate could be achieved using 75\% of the irradiation power used for sole photocatalysis, allowing increases in the energetic efficiency of photocatalytic wastewater treatment processes. The process of photocatalytic ozonation is suitable to remove a wide spectrum of micro-pollutants from wastewater.},
  subject      = {Abwasserreinigung},
  language  = {en}
}
@article{LondongBarthSoebke,
  author    = {Londong, J{\"o}rg and Barth, Marcus and S{\"o}bke, Heinrich},
  title     = {Modeling and Simulation of Source Separation in Sanitation Systems for Reducing Emissions of Antimicrobial Resistances},
  series = {Water},
  volume    = {2021},
  journal   = {Water},
  number    = {Volume 13, issue 23, article 3342},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/w13233342},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20211202-45338},
  pages     = {1 -- 19},
  abstract  = {Antimicrobial resistance (AMR) is identified by the World Health Organization (WHO) as one of the top ten threats to public health worldwide. In addition to public health, AMR also poses a major threat to food security and economic development. Current sanitation systems contribute to the emergence and spread of AMR and lack effective AMR mitigation measures. This study assesses source separation of blackwater as a mitigation measure against AMR. A source-separation-modified combined sanitation system with separate collection of blackwater and graywater is conceptually described. Measures taken at the source, such as the separate collection and discharge of material flows, were not considered so far on a load balance basis, i.e., they have not yet been evaluated for their effectiveness. The sanitation system described is compared with a combined system and a separate system regarding AMR emissions by means of simulation. AMR is represented in the simulation model by one proxy parameter each for antibiotics (sulfamethoxa-zole), antibiotic-resistant bacteria (extended-spectrum beta-lactamase E. Coli), and antibiotic re-sistance genes (blaTEM). The simulation results suggest that the source-separation-based sanitation system reduces emissions of antibiotic-resistant bacteria and antibiotic resistance genes into the aquatic environment by more than six logarithm steps compared to combined systems. Sulfa-methoxazole emissions can be reduced by 75.5\% by keeping blackwater separate from graywater and treating it sufficiently. In summary, sanitation systems incorporating source separation are, to date, among the most effective means of preventing the emission of AMR into the aquatic envi-ronment.},
  subject      = {Abwasser},
  language  = {en}
}