Development and adaptation of the ANAStrip ® process for N-recovery in wastewater treatment plants with sludge digestion
Abstract
Aim of the project is to open new fields of application of an innovative method for nitrogen removal and recovery, which is possible only through the joint development in a multidisciplinary and multinational network, and in which the partners cover all areas of the value chain for product development. The ANAStrip process, which was developed for the treatment and nutrient recovery from fermentation residues of biogas plants, shall be adapted for the treatment of anaerobic sludge from sewage treatment plants. Through the production of an economically interesting and marketable product this process will help to reduce the costs of municipal wastewater treatment. Within the project a technology transfer will be made from a German company that developed the process to the companies in Austria with their long-standing core competencies in industrial plant construction and sewage treatment, hereby strengthening the innovation capacity and economic competitiveness of these companies. In the investigations two wastewater treatment plant operators are involved as external partners so that an immediate practical relevance given. Monitoring and evaluation is provided by the University of Agricultural Sciences, IFA-Tulln, Inst. of Environmental Biotechnology helping to strengthen the scientific expertise within the project. Through recovery of ammonia nitrogen from anaerobic sludge, the N-back load in wastewater treatment plants with high nitrogen load can be avoid and the associated costs are reduced. In addition, instead of the loss of valuable nitrogen, which is converted to gaseous N2 by the treatment plant, a high-concentrated nitrogen fertilizer is produced. This organic fertilizer is readily taken up by plants and almost no nitrogen losses occur. In contrast substantial N emissions and eluviation losses (washing out of nitrogen into groundwater) are associated with the application of sewage sludge on agricultural land. Preventing that an effective contribution to the EU-wide emission reduction targets regarding greenhouse gases are made.
Publikationen
Project staff
Werner Fuchs
Ao.Univ.Prof. Dipl.-Ing. Dr.nat.techn. Werner Fuchs
werner.fuchs@boku.ac.at
Tel: +43 1 47654-97401, 97423
BOKU Project Leader
01.04.2011 - 05.02.2014
BOKU partners
External partners
AIM Technical Solutions
Martin Hubweber
partner
HIPI Zivilitechniker GmbH
DI Walter Perathoner
partner
GNS – Gesellschaft für Nachhaltige Stoffnutzung mbH
Dr. Ute Bauermeister
partner
SSM Technology
Dr. Thomas Meier
partner