Wastewater

• BA: State of the art - quantification methods for microplastics in the wastewater treatment process
  Work contents:

  • Literature research on the current status of the quantification methodology
  • Characterization and evaluation of the different methods
  • Discussion of the results and outlook

   

  Type of work:

  Bachelor thesis (German/English)

  Contact person:

  Kim Kersten

  Contact

Solid Waste and Circular Economy

• RP/SA/MA: Multi-variate principal component analysis of transition bio-chars using MID-IR ATR
  Background:

  As part of an Indo-German Research Project, the institute is doing a detailed research on biochar characteristics from complex substrates. As part of this, IR spectroscopy is to be deployed for a quantification of principal components using statistical/chemometric techniques like PLS and PCR. The work would start as a project arbeit, which can then progress on to a masters thesis.

  Type: RP/SA/MA

  Language: English

  Pre-requisites: Good knowledge in chemistry, and Matlab.

  Supervisor: Rahul Ramesh Nair M.Sc

  Contact email for applications: Hanna Schäfer <schaefer@isah.uni-hannover.de>

• PA/RP/MA: Abfall- und Kreislaufwirtschaft im Sinne der globalen Nachhaltigkeitsziele
  [Translate to English:]

  • Darstellung der globalen Nachhaltigkeitsziele die Abfall- und Kreislaufwirtschaft betreffend
  • Bewertungsparameter und -maßstäbe zur Erreichung der gobalen Nachhaltigkeitsziele
  • Aktuelle Trends und Erfolge in der Anwendung

   

  Art der Arbeit:

  Projekt-/Masterarbeit/Research Project (deutsch/englisch)

  Ansprechperson:

  PD Dr.-Ing. habil. Dirk Weichgrebe

• PA/RP/MA: Up-scaling of anaerobic processes
  -Familiarization with dimensional analysis

  -Comparison of methods

  -Assessment and applicability

  Type of Work:

  Projektarbeit/Research Project/Master Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• PA/RP/MA: Waste and recycling management in line with global sustainable development goals (SDG)
  -Presentation of the global sustainability objectives concerning waste management and environmental service branch

  -Assessment parameters and standards for achieving the global sustainability goals

  -Current trends and successes in application

   

  Type of work:

  Projektarbeit/Research Project/Master Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• MA:Development of a design approach for the solar drying of organic residue mixtures
  -Combination of algorithms for biological drying, convection and radiation

  -Investigation of influencing parameters (radiation, degradability, heat transfer, surface area, humidity, etc.)

  -Statements on the dimensioning of a solar dryer

  Type of work:

  Master Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• PA/RP/BA/MA: Status quo and trends in processes for the recycling of plastics from municipal waste
  -Data research

  -Procedure research

  -Method comparison and evaluation

  Type of Work:

  Projektarbeit/Bachelor Thesis/ Research Project/Masterarbeit (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• RP/BA: Anaerobic degradation tests of rapeseed straw for biogas production
  -Literature research on potential

  -Laboratory experiments

  -Evaluation of the test results with regard to biogas yield

  Type of work:

  Research Project/Bachelor Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• MA:Planning of a semi-technical pilot plant for digestion of natural fibres and biogas production from shives
  -Process representation

  -Dimensioning on the basis of the preliminary investigations

  -Concept planning at the location of an existing BGP

  Type of work:

  Master Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• RP/BA/MA: Anaerobic degradation experiments for (natural) fibre extraction from hemp plants
  -Literature research on the potential of hemp plant cultivation

  -Laboratory experiments

  -Evaluation of the test results with regard to fiber quality

  Type of work:

  Research Project/Bachelor Thesis/Master Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• RP/BA/MA:Anaerobic degradation tests of hemp and oil-injected shives for biogas production
  -Literature research on potential

  -Laboratory experiments

  -Evaluation of the test results with regard to biogas yield

  Type of workt:

  Research Project/Bachelor Thesis/Master Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• PA/RP/BA/MA: TGA-FTIR analysis to evaluate the recyclability of plastics
  -Laboratory measurements of packaging plastics

  -Literature research on current packaging plastics (quantity, type)

  -Comparative evaluation with respect to degradability or recoverability

  Type of work:

  Projektarbeit/Bachelor Thesis/Research Project/Master Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• PA/BA/RP/MA:Thermodynamic evaluation of the external heat supply during solar sewage sludge drying PA/RP/BA/MA:
  - Literature research of sources and potential for external heat sources

  - Thermodynamic analysis and energetic evaluation

  Type of work:

  Projektarbeit/Bachelor Thesis/Research Project/Master Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• PA/BA/RP/MA:Fatty acid extraction from anaerobic reactors
  - Literature research on methods

  - Comparison of methods

  - Assessment and applicability

  Type of Work:

  Projektarbeit/Bachelor Thesis/Research Project/Master Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact
• RP/MA: Comparative Analysis of Power Conversion Technologies to utilize low temperature heat from waste biomass pyrolysis
  -Literature Review and Prozess evaluation regarding available Power Conversion Technologies from Heat

  -Comparative Analysis of Power Conversion Technologies with respect to multiple selection criteria (e.g. Expenses, Efficiency, Environmental Impact)

  -Development of a module concept to include the selected power conversion technology in an existing pyrolysis process of waste biomass

  Type of work:

  Research Project/Master Thesis (German/English)

  Supervisor:

  PD Dr.-Ing. habil. Dirk Weichgrebe

  Contact

Microbiology

• RP: Substitution of plastic with biodegradable plastic
  Work contents: see HERE.
  

  
  Type of work:

  Reasearch project (englisch)

  Contact person:

  Prof. Dr.-Ing. Regina Nogueira

  Contact
• BA/MA: Microbial risk assessment of urban stormwater management practices
  Work contents:

  Stormwater basins are advantageous in the control of floods. However, they can pose a risk to the environment and human health due to biological and chemical contamination.

  Human exposure to pathogens in stormwater basins is accidental and occurs through recreational activities. In order to inform water authorities and to assist them in implementing risk control and mitigation measures, studies are needed on the health risks arising from exposure to urban water.

  The objectives of the work are as follows:
  1. literature research on bacterial and viral pathogens in storm water,
  2. calculation of the risk of disease due to recreational or accidental exposure,
  3. proposing operational strategies to minimise risk.

  Type of work:

  Bachelor or Master Thesis (German or English)

  Contact person:

  Prof. Dr.-Ing. Regina Nogueira

  Contact
• BA/MA: Application of quantitative microbial risk assessment models to improve safe contact with water in cities
  Work contents:

  Water elements in urban areas (cisterns, ponds, fountains, natural swimming pools, etc.) are increasingly perceived by citizens as a positive element, as they add aesthetic quality to the neighbourhood and provide recreational opportunities. However, they can also lead to increased health risks due to the possible presence of pathogens. Human exposure to pathogens in urban water occurs through recreational activities, domestic use, occupational exposure, consumption of plants irrigated with contaminated water or accidentally. In order to inform water authorities and assist them in implementing risk control and mitigation measures, studies are needed on the health risks arising from exposure to urban water.

  The objectives of the work are as follows:
  1. literature research on bacterial and viral pathogens in urban water
  2. calculation of the risk of illness due to recreational or accidental exposure
  3. proposing operational strategies to minimise risk.

  Type of work:

  Bachelor or Master Thesis (German or English)

  Contact person:

  Prof. Dr.-Ing. Regina Nogueira

   

  Contact

Drinking Water