Wastewater

Solid Waste and Circular Economy

BA/MA: Quantification of Scope 3 emissions from waste management sector using the example of waste management in the Hannover Region
Literature research on the estimation of Scope 3 emissions in waste management sector

Collection of data required for estimation of scope 3 emissions of the waste management of the region aha from primary and secondary sources including waste generation, treatment, transport and disposal for the year 2022

Identify Scope 3 emission sources related to aha's waste management activities using the GHG Protocol

Evaluation of the results obtained and identifying the scope 3 emission sources that contribute the most to aha's carbon footprint

Recommendation for aha on how to reduce its Scope 3 emissions and achieving its emission reduction targets.

Type of work: Bachelor thesis, Master thesis (German)

Contact person: Sara Zahedi Nezhad M.Sc
RP/SA/BA: Literature research on methane oxidation and the use of biochar as a filter material in methane oxidation filters for landfill residual gas treatment of old landfills in the aftercare phase.
Literature review with respect to bio/methane oxidation filter material for residual methane gas adsorption and oxidation.

Suitability of different biochar to support methane oxidation in methane oxidation filters.

Supporting work to the Oxi-Loc project of the ISAH and the BAWN.

Discussion and evaluation of results of research on possible applications of biochar as a suitable additional material in methane oxidation filters for residual methane reduction of old landfills in the post-closure phase.

Start of work: Flexible

Type of work: Project work / Seminar paper / Bachelor thesis (German)

Contact person: Tim Kappmeier

kappmeier@isah.uni-hannover.de
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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

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MA/ Praxisprojekt: Semi-technical trials on nitrogen recovery from the vapor condensates produced during sewage sludge drying

1. Literature research on nitrogen recovery from municipal sewage sludge
2. Implementation of semi-technical tests for nitrogen recovery from the vapor condensates occurring during sewage sludge drying at the test site
3. Evaluation of laboratory results
4. Drawing up a heat and nitrogen balance
5. Determination of optimal operating settings with regard to condensate quantities and nitrogen concentrations

Type of work: Master thesis or practical project with the company BIORESTEC GmbH (German)

Supervisor: PD Dr.-Ing. habil. Dirk Weichgrebe

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MA: Planning of a semi-technical test facility for the digestion of natural fibers and biogas production from shives

- Process representation

- Dimensioning based on the preliminary investigations

- Concept planning at the location of an existing BGA

Art der Arbeit: Masterarbeit (deutsch/englisch)

Ansprechperson: PD Dr.-Ing. habil. Dirk Weichgrebe

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