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Process development and process monitoring of landfill leachate treatment in combination with complementary long-term addition of process water from fermenter

  • Before transporting the landfill leachate to municipal wastewater treatment plant it has to be treated in a landfill leachate treatment plant, as it comprises high concentrations of ammonium. The elimination of ammonium load in the leachate is usually done by the combined processes of nitrification and denitrification with a specially adapted biocenosis in the activated sludge (AS). For each of the steps, specialized bacteria such as Nitrosomonas, Nitrobacter and Paracoccus are used to transfer the ammonia to gaseous nitrogen. The aim of this investigation was to find suitable process parameters for a complementary treatment of fermentation water from a biogas plant together with landfill leachate. The processed water of the biogas plant consists of a higher concentration of ammonium and carbon sources or easily degradable volatile fatty acids. It can save the usage of external carbon source (acetic acid) and additionally it could also compensate the missing volumes of leachate in times of low rain and low leachate flows. To maintain the high workload for the existing leachate treatment pilot plant (LTPP), a combined treatment of landfill leachate and process water is also of economic and of ecological interest. The long-term adaption process of the biocenosis needs to be done step-by-step. Innovative process monitoring is needed to prevent biocenosis collapse. In our study, we present our set-up, a closer look at the ongoing experiment and the long-term changes in the biocenosis.

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Metadaten
Author:Nitesh Annepogu, Christoph Steiner, Astrid Rehorek
URN:urn:nbn:de:hbz:832-epub4-14007
Parent Title (English):Book of Proceedings of STEPsCON 2018
Document Type:Part of a Book
Language:English
Date of first Publication:2019/09/06
Date of Publication (online):2019/09/17
Tag:Denitrification; EyeTech; Fermentation wastewater; Landfill leachate; Nitrification
Page Number:S. 30-42
Institutes:Informatik und Ingenieurwissenschaften (F10) / Fakultät 10 / :metabolon Institut
CCS-Classification:A. General Literature
Dewey Decimal Classification:500 Naturwissenschaften und Mathematik
JEL-Classification:Z Other Special Topics
Open Access:Open Access
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International