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Research project (§ 26 & § 27)
Duration : 2018-04-01 - 2021-03-31

Biogenic waste waters contain significant amounts of nutrients. Their removal in waste water treatment plants is cost and energy intensive. The project “ReNOx 2.0” investigates the simultaneous recovery and industrial utilization of NH4+ & PO43-. Therefore, a zeolite-based process called ion-exchanger-loop-stripping (“ILS”) is used, which has been successfully tested for NH4 +-recovery from sludge liquor in municipal waste water treatment plants in the previous project “ReNOx”. In “ReNOx 2.0” this process is extended for simultaneous phosphate recovery and tested in further applications (digestate, manure, landfill leachate, industrial waste waters). The previous project revealed complex ion exchange interactions on zeolites, which require further modification of the zeolites and process enhancement to fulfill the requirements for novel applications and media. The aims of „ReNOx 2.0“ are 1) to extend the potential areas of application for the ILSprocess, 2) to increase the ammonium recovery by zeolite optimization, 3) to investigate the fixation and energy-saving recovery of phosphorous by using modified zeolite and 4) to achieve process intensification by simultaneous removal and selective recovery of NH4+ &PO43- in a single, optimized process (“ILSplus”). Modified zeolite will be prepared on a lab-scale in a first step according to a novel production process developed at the beginning of “ReNOx 2.0” and then used for simultaneous NH4+ &PO43--recovery (N&P-recovery) from real effluent samples. Afterwards, an existing pilot plant will be adapted for simultaneous N&P-recovery and tested in different operational environments. The industrial feasibility of the ILSplus-process will be evaluated by means of a detailed model of the whole process. The products of ILSplus will be tested for their applicability as N&P-fertilizer, DeNOx-agent or other potential applications. The impact on sectoral and national raw material cycles and its merit will be quantified. The international consortium of “ReNOx 2.0” includes research institutions, plant engineering companies, raw material suppliers and potential customers of ILSplus-plants and products and endeavours the whole process chain to conduct high-quality, interdisciplinary research. “ReNOx 2.0” will provide the basis for compact retrofitting unit-design to enable the economic recovery of excess amounts of NH4+ and PO4 3- from currently unused sources and contribute to the intelligent utilization of national resources especially for the critical raw material phosphorous.
Research project (§ 26 & § 27)
Duration : 2015-01-01 - 2015-09-30

On the 1st of January 2015, a new project submission and management system for the project financed by Land Niederösterreich comes into effect. The present proposal was written to continue and complete the project: “Development and characterization of multi-functional bio-based composites” through a new project, also to comply with the new European regulations. The proposed time-period is 01/01/2015 till 30/09/2015. The new project is designed to continue the financial support for Miss Pauline Rivière PhD study, which has started in October 2012 within the framework of the European Regional Development Fund (EFRE) project BIOFUNK, in order to complete the ongoing PhD project.

Supervised Theses and Dissertations