TY - JOUR A1 - Besra, Laxmidhar A1 - Sengupta, Dilip A1 - Roy, S. A1 - Ay, Peter T1 - Flocculation and dewatering of kaolin suspensions in the presence of polyacrylamide and surfactant KW - Flocculation KW - Dewatering KW - Polymer KW - Surfactant Y1 - 2002 ER - TY - GEN A1 - Ay, Peter A1 - Kenn, Barbara A1 - Alter, Marcus Daniel T1 - Strukturierte Filterelemente als Trägermaterial für Mikroorganismen in der Wasseraufbereitung am Beispiel der Denitrifikation von belastetem Grund- und Trinkwasser T2 - Forum der Forschung KW - Denitrifikation KW - Wasseraufbereitung Y1 - 2002 SN - 0947-6989 VL - 8 IS - 15 SP - 76 EP - 81 ER - TY - JOUR A1 - Nagel, Manfred A1 - Ay, Peter T1 - Dreidimensionale morphologische Untersuchung von Flocken JF - GIT Laborfachzeitschrift Y1 - 2001 SN - 0016-3538 VL - 45 IS - 6 SP - 656 EP - 658 ER - TY - GEN A1 - Missagia, Bruna A1 - Ferreira Silva Correa, Mauricio A1 - Krautz, Hans Joachim A1 - Ay, Peter A1 - Schluchter, Wolfgang T1 - Agricultural and forestry residues as an alternative energy source for Brazil - the production of biomass pellets Y1 - 2009 ER - TY - CHAP A1 - Missagia, Bruna A1 - Guerrero, Cinthya A1 - Narra, Satyanarayana A1 - Krautz, Hans Joachim A1 - Ay, Peter T1 - Physical characterization of Brazilian agricultural and forestry residues aiming the production of energy pellets Y1 - 2010 ER - TY - GEN A1 - Missagia, Bruna A1 - Guerrero, Cinthya A1 - Narra, Satyanarayana A1 - Sun, Yaoming A1 - Ay, Peter A1 - Krautz, Hans Joachim T1 - Physicomechanical properties of rice husk pellets for energy generation Y1 - 2011 ER - TY - PAT A1 - Narra, Satyanarayana A1 - Ay, Peter A1 - Glaser, Claudia T1 - Vorrichtung und Verfahren zur Agglomeration der Ablauge eines Cellulosegewinnungsprozesses Y1 - 2013 ER - TY - PAT A1 - Narra, Satyanarayana A1 - Ay, Peter T1 - Verfahren zur Herstellung von säurebeständigen Biopolymer-Lignin-Membranen Y1 - 2012 ER - TY - PAT A1 - Narra, Satyanarayana A1 - Ay, Peter A1 - Glaser, Claudia A1 - Logsch, Florian T1 - Verfahren zur Herstellung von wasserunlöslichen Lignin-Agglomeraten Y1 - 2012 ER - TY - CHAP A1 - Markowski, Jens A1 - Logsch, Florian A1 - Ay, Peter A1 - Kanthak, Manfred A1 - Müller, Bodo T1 - Recycling of non-ferrous metals, precious metals and rare earth metals from MSW T2 - Proceedings, XXVII. IMPC, Santiago de Chile, 2014 N2 - Presently the global commodity situation for non ferrous-, precious- and rare metals is characterized by a strong increase in onsumption and a simultaneous shortage of materials derived from primary sources. So the use of secondary raw materials gains is important due to economic and ecological reasons. Non Ferrous-, precious- and rare earth metals were detected in household waste (Municipal solid waste, MSW) for years. In MSW-treatments plants NF-metals are actually mostly separated from dried fractions. The separation of these metals is carried out with the aim of removing particles which disrupt further processing. A selective enrichment of individual non-ferrous metals has not been carried out previously. The separated fractions contain mixtures of Al, Cu, Zn, Pb, Sn, alloys, precious metals (e. g. Au, Ag, Pt) and rare metals (Ga, In, Nd etc.) along with considerable amounts of contaminations. The R&D project “NE-Rec” selectively processes the coarsely separated non-ferrous-metal-conglomerates increasing the concentration of targeted metals. Metals and metal mixtures are concentrated by sorting steps and the impurities are discharged from the process. Still contaminated precious metals are then subjected to a wet-chemical treatment. So metals can be specifically brought into solution or can be precipitated to separate unwanted components (inerts, polymers, foreign metals). Further the relevant metals will be concentrated by thermal-metallurgical processes. The technology, developed in the R&D project, enables identification, separation and processing of non-ferrous metals, precious metals and REM in household waste and transfers them into further processable individual fractions. KW - Recycling KW - NF metals Y1 - 2014 SP - 237 EP - 245 PB - GECAMIN CY - Santiago de Chile ER -