Thermal Utilization of Sewage Sludge with Recovery of Energy and Recycling of Phosphorus (P) as Fertilizer
Legal restrictions and the soon expected shortage of phosphorus(P)as a critical raw material are promoting the development of new technologies for the thermal utilization of sewage sludge(SS)with recovery of energy in co-incineration plants(e.g.cement kiln,lignite fired power stations and municipal waste incinerators)as well as the recycling of phosphorus from sewage sludge ash,produced by mono-incineration in fluidized bed combustion plants.In this contribution,an overview is given of the numerous processes developed for phosphorus recycling as fertilizer in agriculture,when different process streams of a municipal waste water treatment plant are used as feedstock material.It will be shown that by using dried sewage sludge or sewage sludge 0ash,recycling rates up to 90%can be reached.Finally,the wet chemical acid digestion based TetraPhos-process of REMONDIS and the thermochemical/metallurgical related RecoPhos-process of MontanuniversitaetLeobenare reported and described.
Sewage sludge (SS) fluidized bed incineration (FBI) sewage sludge ash energy recovery phosphorus (P) recycling wet chemical treatment thermal treatment secondary fertilizer
Karl E Lorber Renato Sarc Christoph Ponak Harald Raupenstrauch
Montanuniversitaet Leoben,Chair of Waste Processing Technology and Waste Management,Franz-Josef-Stra Montanuniversitaet Leoben,chair of Thermal Processing Technology,Franz-Josef-Straβe 18,8700 Leoben
国际会议
合肥
英文
1-13
2018-06-12（万方平台首次上网日期，不代表论文的发表时间）