Abegglen, Ch.; Ospelt, M.; Siegrist, H. (2008). Biological nutrient removal in a small-scale MBR treating household wastewater. Water Resources 42 (1): 338-346.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Balkema, A.J.; Preisig, H.A.; Otterpohl, R.; Lambert, A.J.; Weijers, S.R.; Developing a model based decision support tool for the identification of sustainable treatment options for domestic wastewater. Water Science And Technology 43: 265-270.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Balkema, A.J.; Preisig, H.A.; Otterpohl, R.; Lambert, F.J.D.; Indicators for the sustainability assessment of wastewater treatment systems. Urban Water 4: 153-161.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    BIP. Public Information Bulletin .The city and municipality Krapkowice (2013). Annexes to the Resolution of the City Council No. XXI / 346/2013 of 11 September 2013: Study of conditions and directions of spatial management. Krapkowice (In polish).
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Błażejewski, R. (1998). Overview of new developments in technology and techniques for individual wastewater treatment. Design, construction and operation of sewage treatment plants. Poznań-Kiekrz (In polish).
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Blstakova, A.; Bodík, I.; Dancova L.; Jakubcova Z. (2009). Domestic wastewater treatment with membrane filtration - two years’ experience. Desalination 240: 160-169
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Bodík, I.; Boscornea, C.; Istenič, D.; Zakharchenko, M. (2012). GWP CEE Regional Study. Natural processes of wastewater treatment—actual status in CEE countries. Available at: http://www.gwp.org/Global/GWPCEE_Files/Regional/Q-study-report-CEE.pdf. Accessed 11 December 2016.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Capodaglio, A. (2002). Wet-weather transient impacts on wastewater treatment. In: R. Arsov (Ed.). Urban Water Management. Dordrecht: Kluwer Academic Publishers B.V.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Capodaglio, A.G.; Callegari A. (2015). Onsite Management of Tanker ships’ Rinse Water by Means of a Compact Bioreactor. Water Practice and Technology 10(4): 681-687.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Capodaglio, A.G.; Cecconet, D.; Molognoni, D. (2016). Small communities Decentralized Wastewater Treatment: Assessment of Technological Sustainability. Proceedings, 13th IWA Specialized Conference on Small Water and Wastewater Systems & 5th IWA Specialized Conference on Resources-Oriented Sanitation. Athens, Greece.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Capodaglio, A.G.; Suidan, M.; Venosa, A.D., Callegari, A. (2010). Efficient degradation of MtBE and other gasolineoriginated compounds by means of a biological reactor of novel conception: two case studies in Italy and the USA. Wat Sci Tech 61(3): 807-812.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Capodaglio, A.G.; Callegari, A. (2016). Domestic wastewater treatment with a decentralized, simple technology biomass concentrator reactor. J. Water, Sanitation and Hygiene for Development 6(3): 507-510.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Central Statistical Office (2014). For information about the devices and municipal services in the field of sewage. Available at: http://stat.gov.pl/obszary-tematyczne/infrastruktura-komunalna-nieruchomosci/nieruchomoscibudynki-infrastruktura-komunalna/infrastruktura-komunalna-w-2014-r-,3,12.html. Accessed 16 December 2016.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Chong, M.N.; Ho, A. N. M.; Gardner, T.; Sharma, A. K.; Hood, B. (2013). Assessing decentralised wastewater treatment technologies: correlating technology selection to system robustness, energy consumption and GHG emission. Journal of Water and Climate Change 4(4): 338-347.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    European Commission (2000). Water Framework Directive 2000/60/EC (O. J. EC L, 327 z 22.12.2000). Green Arth (2012). Urban Wastewater. Available at: http://greenarth.com/urbanwastewater.html. Accessed 16 December 2016.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Istenic, D.; Bodík, I.; Bulc, T. (2015). Status of decentralised wastewater treatment systems and barriers for implementation of nature-based systems in central and eastern Europe. Envir Sci Poll Res 22: 12879–12884
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Kadlec, R.H.; Wallace, S.D. (2009). Treatment wetlands, 2nd edn. CRC Press, Boca Raton.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Kalogo, Y.; Verstraete, W. (2000). Technical feasibility of the treatment of domestic wastewater by a CEPS-UASB system. Environmental Technology 21:55–65.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Lettinga, G.; Roersma, R.; Grin, P. (1983). Anaerobic treatment of raw domestic sewage at ambient temperatures using a granular bed UASB reactor. Biotechnology and Bioengineering 25: 1701-1723.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Mander, U.; Kuusemets, V.; Öövel, M.; Mauring, T.; Ihme, R.; Pieterse, A.J. (2001). Wastewater purification efficiency in experimental treatment wetlands in Estonia. In: Vymazal, J. (ed.). Transformations of nutrients in natural and constructed wetlands: 201–224. Leiden: Backhuys Publishers.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Masi, F.; Caffaz, S.; Ghrabi, A. (2013). Multi-stage constructed wetland systems for municipal wastewater treatment. Water Science and Technology 67(7): 1590-1598.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Meuler, S.; Paris, S.; Hackner, T. (2008). Membrane bio-reactors for decentralized wastewater treatment and reuse. Water Science and Technology 58(2): 285-294.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Mikosz, J. (2013). Wastewater management in small communities in Poland. Desalination and Water Treatment 51: 2461–2466.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Paruch, A.M.; Maehlum, T.; Obarska-Pempkowiak, H.; Gajewska, M.; Wojciechowska, E.; Ostojski, A. (2011). Rural domestic wastewater treatment in Norway and Poland: experiences, cooperation and concepts on the improvement of constructed wetland technology. Water Sci Technol 63(4): 776–781.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Pikorova, T.; Matulova, Z.; Hlavinek, P.; Drtil, M. (2009). Operation of household MBR WWTP - operational failures. In: P. Hlavinek et al. (eds.). Risk Management of Water Supply and Sanitation Systems. Springer Science+Business Media B.V.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Regulation (EU) no 271/1991 Council Directive 91/271/EEC of 21 May 1991 on the Urban Wastewater Treatment (O.J. L.135,30.5.1991,p. 40-52).
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Regulation (PL) no 115/2001 of the Minister of Environment on water law. Official Journal No 115 Item 1229. Warsaw.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Regulation (PL) no 1800/2014 of the Minister of Environment on the conditions to be met when discharging sewage into water or soil, and on the substances particularly harmful to the aquatic environment. Official Journal No 1800, Warsaw.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Scott, D.; Hidaka, T.; Campo, P.; Kleiner, E.; Suidan, M.T.; Venosa, A.D. (2013). Biological nitrogen and carbon removal in a gravity flow biomass concentrator reactor for municipal sewage treatment. Chemosphere 90(4): 1412-1418.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Stańko, G. (2007). Lexicon sewage treatment plants. Warsaw: Warsaw Agricultural University.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Uemura, S.; Harada, H. (2000). Treatment of sewage by a UASB reactor under moderate to low temperature conditions. Bioresource Technology 72: 275-282.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Van Haandel, A.C.; Lettinga, G. (1994). Anaerobic sewage treatment. A practical guide for regions with hot climate. Chichester, England: John Wiley and Sons Ltd.
                                                                
                                                                Google Scholar
                                                            
                                                                                                                    Wiśniewska-Kadżajan, B. (2013). Local wastewater treatment plant as a solution for wastewater managment in rural areas. University in Siedlce. Administration and Managment 98: 247 -257.
                                                                
                                                                Google Scholar