caa a22 4500 467911908 CHVBK 20180406152851.0 cr unu---uuuuu 170328e20061101xx s 000 0 eng 10.1007/s11157-005-5728-9 doi (NATIONALLICENCE)springer-10.1007/s11157-005-5728-9 Sludge minimisation technologies [Elektronische Daten] [S. Pérez-Elvira, P. Nieto Diez, F. Fdz-Polanco] The treatment and disposal of excess sludge represents a bottleneck of wastewater treatment plants all over the world, due to environmental, economic, social and legal factors. There is therefore a growing interest in developing technologies to reduce the wastewater sludge generation. The goal of this paper is to present the state-of-the-art of current minimisation techniques for reducing sludge production in biological wastewater treatment processes. An overview of the main technologies is given considering three different strategies: The first option is to reduce the production of sludge by introducing in the wastewater treatment stage additional stages with a lower cellular yield coefficient compared to the one corresponding to the activated sludge process (lysis-cryptic growth, uncoupling and maintenance metabolism, predation on bacteria, anaerobic treatment). The second choice is to act on the sludge stage. As anaerobic digestion is the main process in sewage sludge treatment for reducing and stabilising the organic solids, two possibilities can be considered: introducing a pre-treatment process before the anaerobic reaction (physical, chemical or biological pre-treatments), or modifying the digestion configuration (two-stage and temperature-phased anaerobic digestion, anoxic gas flotation). And, finally, the last minimisation strategy is the removal of the sludge generated in the activated sludge plant (incineration, gasification, pyrolysis, wet air oxidation, supercritical water oxidation). Springer, 2006 activated sludge process nationallicence anaerobic digestion nationallicence excess sludge production nationallicence sludge minimisation nationallicence wastewater treatment nationallicence ABR : anaerobic baffled reactors nationallicence AGF : anoxic gas flotation nationallicence ANANOX : anaerobic anoxic oxic nationallicence COD : chemical oxygen demand nationallicence DO : dissolved oxygen nationallicence DS : dry solids nationallicence EGSB : expanded granular sludge bed nationallicence EU : European Union nationallicence HRT : hydraulic residence time nationallicence MLSS (MLVSS) : mixed-liquor (volatile) suspended solids nationallicence OSA : oxic settling anaerobic nationallicence SCWO : supercritical water oxidation nationallicence SRT : solids retention time nationallicence SS : suspended solids nationallicence SVI : sludge volumetric index nationallicence THM : trihalomethanes nationallicence TOC : total organic carbon nationallicence TS : total solids nationallicence UASB : upflow anaerobic sludge blanket nationallicence VS (VSS) : volatile (suspended) solids nationallicence WAO : wet air oxidation nationallicence WWTP : wastewater treatment plant nationallicence Pérez-Elvira S. Department of Chemical Engineering and Environmental Technology, University of Valladolid, Prado de la Magdalena s/n, 47011, Valladolid, Spain aut Nieto Diez P. Department of Chemical Engineering and Environmental Technology, University of Valladolid, Prado de la Magdalena s/n, 47011, Valladolid, Spain aut Fdz-Polanco F. Department of Chemical Engineering and Environmental Technology, University of Valladolid, Prado de la Magdalena s/n, 47011, Valladolid, Spain aut Reviews in Environmental Science and Bio/Technology Kluwer Academic Publishers 5/4(2006-11-01), 375-398 1569-1705 5:4<375 2006 5 11157 https://doi.org/10.1007/s11157-005-5728-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11157-005-5728-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pérez-Elvira S. Department of Chemical Engineering and Environmental Technology, University of Valladolid, Prado de la Magdalena s/n, 47011, Valladolid, Spain aut NATIONALLICENCE 700 1- Nieto Diez P. Department of Chemical Engineering and Environmental Technology, University of Valladolid, Prado de la Magdalena s/n, 47011, Valladolid, Spain aut NATIONALLICENCE 700 1- Fdz-Polanco F. Department of Chemical Engineering and Environmental Technology, University of Valladolid, Prado de la Magdalena s/n, 47011, Valladolid, Spain aut NATIONALLICENCE 773 0- Reviews in Environmental Science and Bio/Technology Kluwer Academic Publishers 5/4(2006-11-01), 375-398 1569-1705 5:4<375 2006 5 11157 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer